From 0b15841b0bbbde75134a777c543dc51fe6187108 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Fri, 15 Mar 2013 10:55:31 -0400 Subject: intel_idle: additional Haswell CPU-id There is an additional HSW CPU-id, 0x46, which has C-states exactly like CPU-id 0x45. Signed-off-by: Len Brown --- drivers/idle/intel_idle.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 5d6675013864..1a38dd7dfe4e 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -465,6 +465,7 @@ static const struct x86_cpu_id intel_idle_ids[] = { ICPU(0x3c, idle_cpu_hsw), ICPU(0x3f, idle_cpu_hsw), ICPU(0x45, idle_cpu_hsw), + ICPU(0x46, idle_cpu_hsw), {} }; MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids); -- cgit v1.2.3 From bad9a43a20372a3b41e15e8aa03b918c76f360f0 Mon Sep 17 00:00:00 2001 From: Abhijeet Dharmapurikar Date: Tue, 19 Mar 2013 16:05:49 -0700 Subject: irqchip: gic: fix irq_trigger return The genirq layer expects a 0 in case that the retrigger function is not able to resend the irq in hardware, but the code is returning -ENXIO. Fix it. [ tglx: Reworked comment and changelog ] Signed-off-by: Abhijeet Dharmapurikar Signed-off-by: Stephen Boyd Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1363734349-32635-1-git-send-email-sboyd@codeaurora.org Signed-off-by: Thomas Gleixner --- drivers/irqchip/irq-gic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index a32e0d5aa45f..fc6aebf1e4b2 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -236,7 +236,8 @@ static int gic_retrigger(struct irq_data *d) if (gic_arch_extn.irq_retrigger) return gic_arch_extn.irq_retrigger(d); - return -ENXIO; + /* the genirq layer expects 0 if we can't retrigger in hardware */ + return 0; } #ifdef CONFIG_SMP -- cgit v1.2.3 From 6e51f857303d02770d5f3ff8f0436487168d0230 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 30 Mar 2013 11:44:24 +0000 Subject: bbc_i2c: fix section mismatch warning Fix following warning: WARNING: drivers/sbus/char/bbc.o(.text+0x674): Section mismatch in reference from the function bbc_i2c_probe() to the function .init.text:T.463() The function bbc_i2c_probe() references the function __init T.463(). This is often because bbc_i2c_probe lacks a __init annotation or the annotation of T.463 is wrong. bbc_i2c_probe() referenced the inlined attach_one_i2c(). As probe may be called after init drop __init annotations on all functions used by bbc_i2c_probe() The warning was seen with a sparc64 defconfig build Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- drivers/sbus/char/bbc_i2c.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c index 1a9d1e3ce64c..c1441ed282eb 100644 --- a/drivers/sbus/char/bbc_i2c.c +++ b/drivers/sbus/char/bbc_i2c.c @@ -282,7 +282,7 @@ static irqreturn_t bbc_i2c_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static void __init reset_one_i2c(struct bbc_i2c_bus *bp) +static void reset_one_i2c(struct bbc_i2c_bus *bp) { writeb(I2C_PCF_PIN, bp->i2c_control_regs + 0x0); writeb(bp->own, bp->i2c_control_regs + 0x1); @@ -291,7 +291,7 @@ static void __init reset_one_i2c(struct bbc_i2c_bus *bp) writeb(I2C_PCF_IDLE, bp->i2c_control_regs + 0x0); } -static struct bbc_i2c_bus * __init attach_one_i2c(struct platform_device *op, int index) +static struct bbc_i2c_bus * attach_one_i2c(struct platform_device *op, int index) { struct bbc_i2c_bus *bp; struct device_node *dp; -- cgit v1.2.3 From e55b6a843b8a07b1c342f9155aa58d0274aef502 Mon Sep 17 00:00:00 2001 From: Jason Gerecke Date: Sun, 7 Apr 2013 20:52:38 -0700 Subject: Input: wacom - fix "can not retrieve extra class descriptor" for 24HDT The MFT device in the Cintiq 24HDT has two interfaces sharing the same configuration. Without this patch, the driver attempts to make use of both interfaces, even though the second interface is not compatible with this driver. Signed-off-by: Jason Gerecke Tested-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 1daa97913b7d..ed78be901b65 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -2209,7 +2209,7 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0x47) }, { USB_DEVICE_WACOM(0xF4) }, { USB_DEVICE_WACOM(0xF8) }, - { USB_DEVICE_WACOM(0xF6) }, + { USB_DEVICE_DETAILED(0xF6, USB_CLASS_HID, 0, 0) }, { USB_DEVICE_WACOM(0xFA) }, { USB_DEVICE_LENOVO(0x6004) }, { } -- cgit v1.2.3 From 5d8cd3b16ec7b56d7502ff1ae21ae6596d2f96e9 Mon Sep 17 00:00:00 2001 From: Zefir Kurtisi Date: Tue, 2 Apr 2013 12:51:48 +0200 Subject: ath9k: fix DFS detector called in softirq context Signed-off-by: Zefir Kurtisi Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c | 4 ++-- drivers/net/wireless/ath/ath9k/dfs_pri_detector.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c index 467b60014b7b..73fe8d6db566 100644 --- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c +++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c @@ -143,14 +143,14 @@ channel_detector_create(struct dfs_pattern_detector *dpd, u16 freq) u32 sz, i; struct channel_detector *cd; - cd = kmalloc(sizeof(*cd), GFP_KERNEL); + cd = kmalloc(sizeof(*cd), GFP_ATOMIC); if (cd == NULL) goto fail; INIT_LIST_HEAD(&cd->head); cd->freq = freq; sz = sizeof(cd->detectors) * dpd->num_radar_types; - cd->detectors = kzalloc(sz, GFP_KERNEL); + cd->detectors = kzalloc(sz, GFP_ATOMIC); if (cd->detectors == NULL) goto fail; diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c index 91b8dceeadb1..5e48c5515b8c 100644 --- a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c +++ b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c @@ -218,7 +218,7 @@ static bool pulse_queue_enqueue(struct pri_detector *pde, u64 ts) { struct pulse_elem *p = pool_get_pulse_elem(); if (p == NULL) { - p = kmalloc(sizeof(*p), GFP_KERNEL); + p = kmalloc(sizeof(*p), GFP_ATOMIC); if (p == NULL) { DFS_POOL_STAT_INC(pulse_alloc_error); return false; @@ -299,7 +299,7 @@ static bool pseq_handler_create_sequences(struct pri_detector *pde, ps.deadline_ts = ps.first_ts + ps.dur; new_ps = pool_get_pseq_elem(); if (new_ps == NULL) { - new_ps = kmalloc(sizeof(*new_ps), GFP_KERNEL); + new_ps = kmalloc(sizeof(*new_ps), GFP_ATOMIC); if (new_ps == NULL) { DFS_POOL_STAT_INC(pseq_alloc_error); return false; -- cgit v1.2.3 From 319e7bd96aca64a478f3aad40711c928405b8b77 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 7 Apr 2013 21:10:48 +0200 Subject: ath9k_htc: accept 1.x firmware newer than 1.3 Since the firmware has been open sourced, the minor version has been bumped to 1.4 and the API/ABI will stay compatible across further 1.x releases. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/htc_drv_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index 716058b67557..a47f5e05fc04 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -796,7 +796,7 @@ static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv) * required version. */ if (priv->fw_version_major != MAJOR_VERSION_REQ || - priv->fw_version_minor != MINOR_VERSION_REQ) { + priv->fw_version_minor < MINOR_VERSION_REQ) { dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n", MAJOR_VERSION_REQ, MINOR_VERSION_REQ); return -EINVAL; -- cgit v1.2.3 From 1527c343c12f3a2aae532aa881d12c6fbf8749f4 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Thu, 4 Apr 2013 12:10:11 +0200 Subject: brcmfmac: remove advertising P2P device support For v3.9 kernel the P2P functionality was merged, but it does not fully support the P2P_DEVICE interface type. This patch removes advertising that support. Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index ec46ffff5409..78da3eff75e8 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -4126,10 +4126,6 @@ static const struct ieee80211_iface_limit brcmf_iface_limits[] = { BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) }, - { - .max = 1, - .types = BIT(NL80211_IFTYPE_P2P_DEVICE) - }, { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_CLIENT) | @@ -4187,8 +4183,7 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev) BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) | BIT(NL80211_IFTYPE_P2P_CLIENT) | - BIT(NL80211_IFTYPE_P2P_GO) | - BIT(NL80211_IFTYPE_P2P_DEVICE); + BIT(NL80211_IFTYPE_P2P_GO); wiphy->iface_combinations = brcmf_iface_combos; wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos); wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz; -- cgit v1.2.3 From 25b5632fb35ca61b8ae3eee235edcdc2883f7a5e Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Thu, 4 Apr 2013 12:10:10 +0200 Subject: brcmsmac: request firmware in .start() callback The firmware is requested from user-space. To assure the request is handled it is recommended to do the request upon IFF_UP. For a mac80211 driver the .start() callback can be considered the equivalent. Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Piotr Haber Reviewed-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- .../net/wireless/brcm80211/brcmsmac/mac80211_if.c | 264 ++++++++++----------- 1 file changed, 132 insertions(+), 132 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c index c6451c61407a..e2340b231aa1 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c @@ -274,6 +274,130 @@ static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br) } } +/** + * This function frees the WL per-device resources. + * + * This function frees resources owned by the WL device pointed to + * by the wl parameter. + * + * precondition: can both be called locked and unlocked + * + */ +static void brcms_free(struct brcms_info *wl) +{ + struct brcms_timer *t, *next; + + /* free ucode data */ + if (wl->fw.fw_cnt) + brcms_ucode_data_free(&wl->ucode); + if (wl->irq) + free_irq(wl->irq, wl); + + /* kill dpc */ + tasklet_kill(&wl->tasklet); + + if (wl->pub) { + brcms_debugfs_detach(wl->pub); + brcms_c_module_unregister(wl->pub, "linux", wl); + } + + /* free common resources */ + if (wl->wlc) { + brcms_c_detach(wl->wlc); + wl->wlc = NULL; + wl->pub = NULL; + } + + /* virtual interface deletion is deferred so we cannot spinwait */ + + /* wait for all pending callbacks to complete */ + while (atomic_read(&wl->callbacks) > 0) + schedule(); + + /* free timers */ + for (t = wl->timers; t; t = next) { + next = t->next; +#ifdef DEBUG + kfree(t->name); +#endif + kfree(t); + } +} + +/* +* called from both kernel as from this kernel module (error flow on attach) +* precondition: perimeter lock is not acquired. +*/ +static void brcms_remove(struct bcma_device *pdev) +{ + struct ieee80211_hw *hw = bcma_get_drvdata(pdev); + struct brcms_info *wl = hw->priv; + + if (wl->wlc) { + wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false); + wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); + ieee80211_unregister_hw(hw); + } + + brcms_free(wl); + + bcma_set_drvdata(pdev, NULL); + ieee80211_free_hw(hw); +} + +/* + * Precondition: Since this function is called in brcms_pci_probe() context, + * no locking is required. + */ +static void brcms_release_fw(struct brcms_info *wl) +{ + int i; + for (i = 0; i < MAX_FW_IMAGES; i++) { + release_firmware(wl->fw.fw_bin[i]); + release_firmware(wl->fw.fw_hdr[i]); + } +} + +/* + * Precondition: Since this function is called in brcms_pci_probe() context, + * no locking is required. + */ +static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev) +{ + int status; + struct device *device = &pdev->dev; + char fw_name[100]; + int i; + + memset(&wl->fw, 0, sizeof(struct brcms_firmware)); + for (i = 0; i < MAX_FW_IMAGES; i++) { + if (brcms_firmwares[i] == NULL) + break; + sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i], + UCODE_LOADER_API_VER); + status = request_firmware(&wl->fw.fw_bin[i], fw_name, device); + if (status) { + wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", + KBUILD_MODNAME, fw_name); + return status; + } + sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i], + UCODE_LOADER_API_VER); + status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device); + if (status) { + wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", + KBUILD_MODNAME, fw_name); + return status; + } + wl->fw.hdr_num_entries[i] = + wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr)); + } + wl->fw.fw_cnt = i; + status = brcms_ucode_data_init(wl, &wl->ucode); + brcms_release_fw(wl); + return status; +} + static void brcms_ops_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, struct sk_buff *skb) @@ -306,6 +430,14 @@ static int brcms_ops_start(struct ieee80211_hw *hw) if (!blocked) wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); + if (!wl->ucode.bcm43xx_bomminor) { + err = brcms_request_fw(wl, wl->wlc->hw->d11core); + if (err) { + brcms_remove(wl->wlc->hw->d11core); + return -ENOENT; + } + } + spin_lock_bh(&wl->lock); /* avoid acknowledging frames before a non-monitor device is added */ wl->mute_tx = true; @@ -793,128 +925,6 @@ void brcms_dpc(unsigned long data) wake_up(&wl->tx_flush_wq); } -/* - * Precondition: Since this function is called in brcms_pci_probe() context, - * no locking is required. - */ -static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev) -{ - int status; - struct device *device = &pdev->dev; - char fw_name[100]; - int i; - - memset(&wl->fw, 0, sizeof(struct brcms_firmware)); - for (i = 0; i < MAX_FW_IMAGES; i++) { - if (brcms_firmwares[i] == NULL) - break; - sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i], - UCODE_LOADER_API_VER); - status = request_firmware(&wl->fw.fw_bin[i], fw_name, device); - if (status) { - wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", - KBUILD_MODNAME, fw_name); - return status; - } - sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i], - UCODE_LOADER_API_VER); - status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device); - if (status) { - wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", - KBUILD_MODNAME, fw_name); - return status; - } - wl->fw.hdr_num_entries[i] = - wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr)); - } - wl->fw.fw_cnt = i; - return brcms_ucode_data_init(wl, &wl->ucode); -} - -/* - * Precondition: Since this function is called in brcms_pci_probe() context, - * no locking is required. - */ -static void brcms_release_fw(struct brcms_info *wl) -{ - int i; - for (i = 0; i < MAX_FW_IMAGES; i++) { - release_firmware(wl->fw.fw_bin[i]); - release_firmware(wl->fw.fw_hdr[i]); - } -} - -/** - * This function frees the WL per-device resources. - * - * This function frees resources owned by the WL device pointed to - * by the wl parameter. - * - * precondition: can both be called locked and unlocked - * - */ -static void brcms_free(struct brcms_info *wl) -{ - struct brcms_timer *t, *next; - - /* free ucode data */ - if (wl->fw.fw_cnt) - brcms_ucode_data_free(&wl->ucode); - if (wl->irq) - free_irq(wl->irq, wl); - - /* kill dpc */ - tasklet_kill(&wl->tasklet); - - if (wl->pub) { - brcms_debugfs_detach(wl->pub); - brcms_c_module_unregister(wl->pub, "linux", wl); - } - - /* free common resources */ - if (wl->wlc) { - brcms_c_detach(wl->wlc); - wl->wlc = NULL; - wl->pub = NULL; - } - - /* virtual interface deletion is deferred so we cannot spinwait */ - - /* wait for all pending callbacks to complete */ - while (atomic_read(&wl->callbacks) > 0) - schedule(); - - /* free timers */ - for (t = wl->timers; t; t = next) { - next = t->next; -#ifdef DEBUG - kfree(t->name); -#endif - kfree(t); - } -} - -/* -* called from both kernel as from this kernel module (error flow on attach) -* precondition: perimeter lock is not acquired. -*/ -static void brcms_remove(struct bcma_device *pdev) -{ - struct ieee80211_hw *hw = bcma_get_drvdata(pdev); - struct brcms_info *wl = hw->priv; - - if (wl->wlc) { - wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false); - wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); - ieee80211_unregister_hw(hw); - } - - brcms_free(wl); - - bcma_set_drvdata(pdev, NULL); - ieee80211_free_hw(hw); -} - static irqreturn_t brcms_isr(int irq, void *dev_id) { struct brcms_info *wl; @@ -1047,18 +1057,8 @@ static struct brcms_info *brcms_attach(struct bcma_device *pdev) spin_lock_init(&wl->lock); spin_lock_init(&wl->isr_lock); - /* prepare ucode */ - if (brcms_request_fw(wl, pdev) < 0) { - wiphy_err(wl->wiphy, "%s: Failed to find firmware usually in " - "%s\n", KBUILD_MODNAME, "/lib/firmware/brcm"); - brcms_release_fw(wl); - brcms_remove(pdev); - return NULL; - } - /* common load-time initialization */ wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err); - brcms_release_fw(wl); if (!wl->wlc) { wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n", KBUILD_MODNAME, err); -- cgit v1.2.3 From a6e4d5a03e9e3587e88aba687d8f225f4f04c792 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Mon, 25 Mar 2013 09:14:30 +0000 Subject: x86, efivars: firmware bug workarounds should be in platform code Let's not burden ia64 with checks in the common efivars code that we're not writing too much data to the variable store. That kind of thing is an x86 firmware bug, plain and simple. efi_query_variable_store() provides platforms with a wrapper in which they can perform checks and workarounds for EFI variable storage bugs. Cc: H. Peter Anvin Cc: Matthew Garrett Signed-off-by: Matt Fleming --- arch/x86/platform/efi/efi.c | 25 +++++++++++++++++++++++++ drivers/firmware/efivars.c | 18 +++--------------- include/linux/efi.h | 9 ++++++++- 3 files changed, 36 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 5f2ecaf3f9d8..c89c245eff40 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -999,3 +999,28 @@ u64 efi_mem_attributes(unsigned long phys_addr) } return 0; } + +/* + * Some firmware has serious problems when using more than 50% of the EFI + * variable store, i.e. it triggers bugs that can brick machines. Ensure that + * we never use more than this safe limit. + * + * Return EFI_SUCCESS if it is safe to write 'size' bytes to the variable + * store. + */ +efi_status_t efi_query_variable_store(u32 attributes, unsigned long size) +{ + efi_status_t status; + u64 storage_size, remaining_size, max_size; + + status = efi.query_variable_info(attributes, &storage_size, + &remaining_size, &max_size); + if (status != EFI_SUCCESS) + return status; + + if (!storage_size || size > remaining_size || size > max_size || + (remaining_size - size) < (storage_size / 2)) + return EFI_OUT_OF_RESOURCES; + + return EFI_SUCCESS; +} diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 7acafb80fd4c..bf15d81d74e1 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -436,24 +436,12 @@ static efi_status_t check_var_size_locked(struct efivars *efivars, u32 attributes, unsigned long size) { - u64 storage_size, remaining_size, max_size; - efi_status_t status; const struct efivar_operations *fops = efivars->ops; - if (!efivars->ops->query_variable_info) + if (!efivars->ops->query_variable_store) return EFI_UNSUPPORTED; - status = fops->query_variable_info(attributes, &storage_size, - &remaining_size, &max_size); - - if (status != EFI_SUCCESS) - return status; - - if (!storage_size || size > remaining_size || size > max_size || - (remaining_size - size) < (storage_size / 2)) - return EFI_OUT_OF_RESOURCES; - - return status; + return fops->query_variable_store(attributes, size); } @@ -2131,7 +2119,7 @@ efivars_init(void) ops.get_variable = efi.get_variable; ops.set_variable = efi.set_variable; ops.get_next_variable = efi.get_next_variable; - ops.query_variable_info = efi.query_variable_info; + ops.query_variable_store = efi_query_variable_store; error = register_efivars(&__efivars, &ops, efi_kobj); if (error) diff --git a/include/linux/efi.h b/include/linux/efi.h index 9bf2f1fcae27..3d7df3d32c66 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -333,6 +333,7 @@ typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, unsigned long count, u64 *max_size, int *reset_type); +typedef efi_status_t efi_query_variable_store_t(u32 attributes, unsigned long size); /* * EFI Configuration Table and GUID definitions @@ -575,9 +576,15 @@ extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if pos #ifdef CONFIG_X86 extern void efi_late_init(void); extern void efi_free_boot_services(void); +extern efi_status_t efi_query_variable_store(u32 attributes, unsigned long size); #else static inline void efi_late_init(void) {} static inline void efi_free_boot_services(void) {} + +static inline efi_status_t efi_query_variable_store(u32 attributes, unsigned long size) +{ + return EFI_SUCCESS; +} #endif extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); extern u64 efi_get_iobase (void); @@ -731,7 +738,7 @@ struct efivar_operations { efi_get_variable_t *get_variable; efi_get_next_variable_t *get_next_variable; efi_set_variable_t *set_variable; - efi_query_variable_info_t *query_variable_info; + efi_query_variable_store_t *query_variable_store; }; struct efivars { -- cgit v1.2.3 From 46fc4c909339f5a84d1679045297d9d2fb596987 Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Tue, 2 Apr 2013 15:57:26 +0200 Subject: ssb: implement spurious tone avoidance MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit And make use of it in b43. This fixes a regression introduced with 49d55cef5b1925a5c1efb6aaddaa40fc7c693335 b43: N-PHY: implement spurious tone avoidance This commit made BCM4322 use only MCS 0 on channel 13, which of course resulted in performance drop (down to 0.7Mb/s). Reported-by: Stefan Brüns Signed-off-by: Rafał Miłecki Cc: Stable Signed-off-by: John W. Linville --- drivers/net/wireless/b43/phy_n.c | 3 ++- drivers/ssb/driver_chipcommon_pmu.c | 29 +++++++++++++++++++++++++++++ include/linux/ssb/ssb_driver_chipcommon.h | 2 ++ 3 files changed, 33 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index e8486c1e091a..b70f220bc4b3 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -5165,7 +5165,8 @@ static void b43_nphy_pmu_spur_avoid(struct b43_wldev *dev, bool avoid) #endif #ifdef CONFIG_B43_SSB case B43_BUS_SSB: - /* FIXME */ + ssb_pmu_spuravoid_pllupdate(&dev->dev->sdev->bus->chipco, + avoid); break; #endif } diff --git a/drivers/ssb/driver_chipcommon_pmu.c b/drivers/ssb/driver_chipcommon_pmu.c index 4c0f6d883dd3..7b0bce936762 100644 --- a/drivers/ssb/driver_chipcommon_pmu.c +++ b/drivers/ssb/driver_chipcommon_pmu.c @@ -675,3 +675,32 @@ u32 ssb_pmu_get_controlclock(struct ssb_chipcommon *cc) return 0; } } + +void ssb_pmu_spuravoid_pllupdate(struct ssb_chipcommon *cc, int spuravoid) +{ + u32 pmu_ctl = 0; + + switch (cc->dev->bus->chip_id) { + case 0x4322: + ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL0, 0x11100070); + ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL1, 0x1014140a); + ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL5, 0x88888854); + if (spuravoid == 1) + ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL2, 0x05201828); + else + ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL2, 0x05001828); + pmu_ctl = SSB_CHIPCO_PMU_CTL_PLL_UPD; + break; + case 43222: + /* TODO: BCM43222 requires updating PLLs too */ + return; + default: + ssb_printk(KERN_ERR PFX + "Unknown spuravoidance settings for chip 0x%04X, not changing PLL\n", + cc->dev->bus->chip_id); + return; + } + + chipco_set32(cc, SSB_CHIPCO_PMU_CTL, pmu_ctl); +} +EXPORT_SYMBOL_GPL(ssb_pmu_spuravoid_pllupdate); diff --git a/include/linux/ssb/ssb_driver_chipcommon.h b/include/linux/ssb/ssb_driver_chipcommon.h index 9e492be5244b..6fcfe99bd999 100644 --- a/include/linux/ssb/ssb_driver_chipcommon.h +++ b/include/linux/ssb/ssb_driver_chipcommon.h @@ -219,6 +219,7 @@ #define SSB_CHIPCO_PMU_CTL 0x0600 /* PMU control */ #define SSB_CHIPCO_PMU_CTL_ILP_DIV 0xFFFF0000 /* ILP div mask */ #define SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT 16 +#define SSB_CHIPCO_PMU_CTL_PLL_UPD 0x00000400 #define SSB_CHIPCO_PMU_CTL_NOILPONW 0x00000200 /* No ILP on wait */ #define SSB_CHIPCO_PMU_CTL_HTREQEN 0x00000100 /* HT req enable */ #define SSB_CHIPCO_PMU_CTL_ALPREQEN 0x00000080 /* ALP req enable */ @@ -667,5 +668,6 @@ enum ssb_pmu_ldo_volt_id { void ssb_pmu_set_ldo_voltage(struct ssb_chipcommon *cc, enum ssb_pmu_ldo_volt_id id, u32 voltage); void ssb_pmu_set_ldo_paref(struct ssb_chipcommon *cc, bool on); +void ssb_pmu_spuravoid_pllupdate(struct ssb_chipcommon *cc, int spuravoid); #endif /* LINUX_SSB_CHIPCO_H_ */ -- cgit v1.2.3 From 6101391d4a381cc0c661d8765235b3cad7da09e5 Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 11 Apr 2013 09:18:55 +0000 Subject: bonding: fix netdev event NULL pointer dereference In commit 471cb5a33dcbd7c529684a2ac7ba4451414ee4a7 ("bonding: remove usage of dev->master") a bug was introduced which causes a NULL pointer dereference. If a bond device is in mode 6 (ALB) and a slave is added it will dereference a NULL pointer in bond_slave_netdev_event(). This is because in bond_enslave we have bond_alb_init_slave() which changes the MAC address of the slave and causes a NETDEV_CHANGEADDR. Then we have in bond_slave_netdev_event(): struct slave *slave = bond_slave_get_rtnl(slave_dev); struct bonding *bond = slave->bond; bond_slave_get_rtnl() dereferences slave_dev->rx_handler_data which at that time is NULL since netdev_rx_handler_register() is called later. This is fixed by checking if slave is NULL before dereferencing it. v2: Comment style changed. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 07401a3e256b..e074c6b55517 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3168,11 +3168,20 @@ static int bond_slave_netdev_event(unsigned long event, struct net_device *slave_dev) { struct slave *slave = bond_slave_get_rtnl(slave_dev); - struct bonding *bond = slave->bond; - struct net_device *bond_dev = slave->bond->dev; + struct bonding *bond; + struct net_device *bond_dev; u32 old_speed; u8 old_duplex; + /* A netdev event can be generated while enslaving a device + * before netdev_rx_handler_register is called in which case + * slave will be NULL + */ + if (!slave) + return NOTIFY_DONE; + bond_dev = slave->bond->dev; + bond = slave->bond; + switch (event) { case NETDEV_UNREGISTER: if (bond->setup_by_slave) -- cgit v1.2.3 From b6a5a7b9a528a8b4c8bec940b607c5dd9102b8cc Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 11 Apr 2013 09:18:56 +0000 Subject: bonding: IFF_BONDING is not stripped on enslave failure While enslaving a new device and after IFF_BONDING flag is set, in case of failure it is not stripped from the device's priv_flags while cleaning up, which could lead to other problems. Cleaning at err_close because the flag is set after dev_open(). v2: no change Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index e074c6b55517..a61a760484f7 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1906,6 +1906,7 @@ err_detach: write_unlock_bh(&bond->lock); err_close: + slave_dev->priv_flags &= ~IFF_BONDING; dev_close(slave_dev); err_unset_master: -- cgit v1.2.3 From 7078b984223e0e0e17ecbf32bd05ef1a927c2788 Mon Sep 17 00:00:00 2001 From: Christian Ruppert Date: Tue, 9 Apr 2013 21:56:04 +0000 Subject: stmmac: prevent interrupt loop with MMC RX IPC Counter If the DesignWare MAC is synthesised with MMC RX IPC Counter, an unmanaged and unacknowledged interrupt is generated after some time of operation. This patch masks the undesired interrupts. Signed-off-by: Christian Ruppert Acked-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/mmc_core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c index 0c74a702d461..50617c5a0bdb 100644 --- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c @@ -149,6 +149,7 @@ void dwmac_mmc_intr_all_mask(void __iomem *ioaddr) { writel(MMC_DEFAULT_MASK, ioaddr + MMC_RX_INTR_MASK); writel(MMC_DEFAULT_MASK, ioaddr + MMC_TX_INTR_MASK); + writel(MMC_DEFAULT_MASK, ioaddr + MMC_RX_IPC_INTR_MASK); } /* This reads the MAC core counters (if actaully supported). -- cgit v1.2.3 From db388d6460ffa53b3b38429da6f70a913f89b048 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Thu, 11 Apr 2013 10:08:27 +0200 Subject: can: mcp251x: add missing IRQF_ONESHOT to request_threaded_irq Since commit: 1c6c695 genirq: Reject bogus threaded irq requests threaded irqs must provide a primary handler or set the IRQF_ONESHOT flag. Since the mcp251x driver doesn't make use of a primary handler set the IRQF_ONESHOT flag. Cc: linux-stable # >= v3.5 Reported-by: Mylene Josserand Tested-by: Mylene Josserand Signed-off-by: Marc Kleine-Budde --- drivers/net/can/mcp251x.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c index f32b9fc6a983..9aa0c64c33c8 100644 --- a/drivers/net/can/mcp251x.c +++ b/drivers/net/can/mcp251x.c @@ -929,6 +929,7 @@ static int mcp251x_open(struct net_device *net) struct mcp251x_priv *priv = netdev_priv(net); struct spi_device *spi = priv->spi; struct mcp251x_platform_data *pdata = spi->dev.platform_data; + unsigned long flags; int ret; ret = open_candev(net); @@ -945,9 +946,14 @@ static int mcp251x_open(struct net_device *net) priv->tx_skb = NULL; priv->tx_len = 0; + flags = IRQF_ONESHOT; + if (pdata->irq_flags) + flags |= pdata->irq_flags; + else + flags |= IRQF_TRIGGER_FALLING; + ret = request_threaded_irq(spi->irq, NULL, mcp251x_can_ist, - pdata->irq_flags ? pdata->irq_flags : IRQF_TRIGGER_FALLING, - DEVICE_NAME, priv); + flags, DEVICE_NAME, priv); if (ret) { dev_err(&spi->dev, "failed to acquire irq %d\n", spi->irq); if (pdata->transceiver_enable) -- cgit v1.2.3 From 0443de5fbf224abf41f688d8487b0c307dc5a4b4 Mon Sep 17 00:00:00 2001 From: Christoph Fritz Date: Thu, 11 Apr 2013 21:32:57 +0200 Subject: can: sja1000: fix handling on dt properties on little endian systems To get correct endianes on little endian cpus (like arm) while reading device tree properties, this patch replaces of_get_property() with of_property_read_u32(). While there use of_property_read_bool() for the handling of the boolean "nxp,no-comparator-bypass" property. Cc: linux-stable Signed-off-by: Christoph Fritz Signed-off-by: Marc Kleine-Budde --- drivers/net/can/sja1000/sja1000_of_platform.c | 31 +++++++++++++-------------- 1 file changed, 15 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/sja1000/sja1000_of_platform.c b/drivers/net/can/sja1000/sja1000_of_platform.c index 6433b81256cd..8e0c4a001939 100644 --- a/drivers/net/can/sja1000/sja1000_of_platform.c +++ b/drivers/net/can/sja1000/sja1000_of_platform.c @@ -96,8 +96,8 @@ static int sja1000_ofp_probe(struct platform_device *ofdev) struct net_device *dev; struct sja1000_priv *priv; struct resource res; - const u32 *prop; - int err, irq, res_size, prop_size; + u32 prop; + int err, irq, res_size; void __iomem *base; err = of_address_to_resource(np, 0, &res); @@ -138,27 +138,27 @@ static int sja1000_ofp_probe(struct platform_device *ofdev) priv->read_reg = sja1000_ofp_read_reg; priv->write_reg = sja1000_ofp_write_reg; - prop = of_get_property(np, "nxp,external-clock-frequency", &prop_size); - if (prop && (prop_size == sizeof(u32))) - priv->can.clock.freq = *prop / 2; + err = of_property_read_u32(np, "nxp,external-clock-frequency", &prop); + if (!err) + priv->can.clock.freq = prop / 2; else priv->can.clock.freq = SJA1000_OFP_CAN_CLOCK; /* default */ - prop = of_get_property(np, "nxp,tx-output-mode", &prop_size); - if (prop && (prop_size == sizeof(u32))) - priv->ocr |= *prop & OCR_MODE_MASK; + err = of_property_read_u32(np, "nxp,tx-output-mode", &prop); + if (!err) + priv->ocr |= prop & OCR_MODE_MASK; else priv->ocr |= OCR_MODE_NORMAL; /* default */ - prop = of_get_property(np, "nxp,tx-output-config", &prop_size); - if (prop && (prop_size == sizeof(u32))) - priv->ocr |= (*prop << OCR_TX_SHIFT) & OCR_TX_MASK; + err = of_property_read_u32(np, "nxp,tx-output-config", &prop); + if (!err) + priv->ocr |= (prop << OCR_TX_SHIFT) & OCR_TX_MASK; else priv->ocr |= OCR_TX0_PULLDOWN; /* default */ - prop = of_get_property(np, "nxp,clock-out-frequency", &prop_size); - if (prop && (prop_size == sizeof(u32)) && *prop) { - u32 divider = priv->can.clock.freq * 2 / *prop; + err = of_property_read_u32(np, "nxp,clock-out-frequency", &prop); + if (!err && prop) { + u32 divider = priv->can.clock.freq * 2 / prop; if (divider > 1) priv->cdr |= divider / 2 - 1; @@ -168,8 +168,7 @@ static int sja1000_ofp_probe(struct platform_device *ofdev) priv->cdr |= CDR_CLK_OFF; /* default */ } - prop = of_get_property(np, "nxp,no-comparator-bypass", NULL); - if (!prop) + if (!of_property_read_bool(np, "nxp,no-comparator-bypass")) priv->cdr |= CDR_CBP; /* default */ priv->irq_flags = IRQF_SHARED; -- cgit v1.2.3 From f09a878511997c25a76bf111a32f6b8345a701a5 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 10 Apr 2013 15:26:06 +0200 Subject: ath9k_hw: change AR9580 initvals to fix a stability issue The hardware parsing of Control Wrapper Frames needs to be disabled, as it has been causing spurious decryption error reports. The initvals for other chips have been updated to disable it, but AR9580 was left out for some reason. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h index 28fd99203f64..bdee2ed67219 100644 --- a/drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h +++ b/drivers/net/wireless/ath/ath9k/ar9580_1p0_initvals.h @@ -519,7 +519,7 @@ static const u32 ar9580_1p0_mac_core[][2] = { {0x00008258, 0x00000000}, {0x0000825c, 0x40000000}, {0x00008260, 0x00080922}, - {0x00008264, 0x9bc00010}, + {0x00008264, 0x9d400010}, {0x00008268, 0xffffffff}, {0x0000826c, 0x0000ffff}, {0x00008270, 0x00000000}, -- cgit v1.2.3 From f11a869d4e38397ac81f2a3d22e8d2aeb3992b0f Mon Sep 17 00:00:00 2001 From: Ivan Vecera Date: Fri, 12 Apr 2013 16:49:24 +0200 Subject: be2net: take care of __vlan_put_tag return value The driver should use return value of __vlan_put_tag with appropriate NULL-check instead of old skb pointer. Signed-off-by: Ivan Vecera Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 08e54f3d288b..2886c9b63f90 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -759,8 +759,9 @@ static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter, if (vlan_tx_tag_present(skb)) { vlan_tag = be_get_tx_vlan_tag(adapter, skb); - __vlan_put_tag(skb, vlan_tag); - skb->vlan_tci = 0; + skb = __vlan_put_tag(skb, vlan_tag); + if (skb) + skb->vlan_tci = 0; } return skb; -- cgit v1.2.3 From 3be8fbab18fbc06b6ff94a56f9c225e29ea64a73 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 12 Apr 2013 03:17:12 +0000 Subject: tuntap: fix error return code in tun_set_iff() Fix to return a negative error code from the error handling case instead of 0, as returned elsewhere in this function. [ Bug added in linux-3.8 , commit 4008e97f866db665 ("tuntap: fix ambigious multiqueue API") ] Signed-off-by: Wei Yongjun Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/tun.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index b7c457adc0dc..729ed533bb33 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1594,7 +1594,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) if (tun->flags & TUN_TAP_MQ && (tun->numqueues + tun->numdisabled > 1)) - return err; + return -EBUSY; } else { char *name; -- cgit v1.2.3 From 2e0cbf2cc2c9371f0aa198857d799175ffe231a6 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Sat, 13 Apr 2013 06:18:56 +0000 Subject: net: mvmdio: add select PHYLIB The mvmdio driver uses the phylib API, so it should select the PHYLIB symbol, otherwise, a build with mvmdio (but without mvneta) fails to build with undefined symbols such as mdiobus_unregister, mdiobus_free, etc. The mvneta driver does not use the phylib API directly, so it does not need to select PHYLIB. It already selects the mvmdio driver anyway. Historically, this problem is due to the fact that the PHY handling was originally part of mvneta, and was later moved to a separate driver, without updating the Kconfig select statements accordingly. And since there was no functional reason to use mvmdio without mvneta, this case was not tested. Signed-off-by: Thomas Petazzoni Reported-by: Fengguang Wu Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/marvell/Kconfig b/drivers/net/ethernet/marvell/Kconfig index edfba9370922..434e33c527df 100644 --- a/drivers/net/ethernet/marvell/Kconfig +++ b/drivers/net/ethernet/marvell/Kconfig @@ -33,6 +33,7 @@ config MV643XX_ETH config MVMDIO tristate "Marvell MDIO interface support" + select PHYLIB ---help--- This driver supports the MDIO interface found in the network interface units of the Marvell EBU SoCs (Kirkwood, Orion5x, @@ -45,7 +46,6 @@ config MVMDIO config MVNETA tristate "Marvell Armada 370/XP network interface support" depends on MACH_ARMADA_370_XP - select PHYLIB select MVMDIO ---help--- This driver supports the network interface units in the -- cgit v1.2.3 From 202dec868a769af726e262790bf00b09ec929b52 Mon Sep 17 00:00:00 2001 From: Jason Gerecke Date: Mon, 15 Apr 2013 09:10:34 -0700 Subject: Input: wacom - correct reported resolution for Intuos4 Wireless Reported-by: Przemo Firszt Signed-off-by: Jason Gerecke Tested-by: Przemo Firszt Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index ed78be901b65..49fdff02b5fe 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1912,7 +1912,7 @@ static const struct wacom_features wacom_features_0xBB = { "Wacom Intuos4 12x19", WACOM_PKGLEN_INTUOS, 97536, 60960, 2047, 63, INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xBC = - { "Wacom Intuos4 WL", WACOM_PKGLEN_INTUOS, 40840, 25400, 2047, + { "Wacom Intuos4 WL", WACOM_PKGLEN_INTUOS, 40640, 25400, 2047, 63, INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0x26 = { "Wacom Intuos5 touch S", WACOM_PKGLEN_INTUOS, 31496, 19685, 2047, -- cgit v1.2.3 From ee40a116ebf139f900c3d2e6febb8388738e96d0 Mon Sep 17 00:00:00 2001 From: Willy Tarreau Date: Thu, 11 Apr 2013 23:00:37 +0200 Subject: net: mvneta: fix improper tx queue usage in mvneta_tx() mvneta_tx() was using a static tx queue number causing crashes as soon as a little bit of traffic was sent via the interface, because it is normally expected that the same queue should be used as in dev_queue_xmit(). As suggested by Ben Hutchings, let's use skb_get_queue_mapping() to get the proper Tx queue number, and use alloc_etherdev_mqs() instead of alloc_etherdev_mq() to create the queues. Both my Mirabox and my OpenBlocks AX3 used to crash without this patch and don't anymore with it. The issue appeared in 3.8 but became more visible after the fix allowing GSO to be enabled. Original work was done by Dmitri Epshtein and Thomas Petazzoni. I just adapted it to take care of Ben's comments. Signed-off-by: Willy Tarreau Cc: Dmitri Epshtein Cc: Thomas Petazzoni Cc: Gregory CLEMENT Cc: Ben Hutchings Tested-by: Gregory CLEMENT Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvneta.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 1e628ce57201..a47a097c21e1 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -374,7 +374,6 @@ static int rxq_number = 8; static int txq_number = 8; static int rxq_def; -static int txq_def; #define MVNETA_DRIVER_NAME "mvneta" #define MVNETA_DRIVER_VERSION "1.0" @@ -1475,7 +1474,8 @@ error: static int mvneta_tx(struct sk_buff *skb, struct net_device *dev) { struct mvneta_port *pp = netdev_priv(dev); - struct mvneta_tx_queue *txq = &pp->txqs[txq_def]; + u16 txq_id = skb_get_queue_mapping(skb); + struct mvneta_tx_queue *txq = &pp->txqs[txq_id]; struct mvneta_tx_desc *tx_desc; struct netdev_queue *nq; int frags = 0; @@ -1485,7 +1485,7 @@ static int mvneta_tx(struct sk_buff *skb, struct net_device *dev) goto out; frags = skb_shinfo(skb)->nr_frags + 1; - nq = netdev_get_tx_queue(dev, txq_def); + nq = netdev_get_tx_queue(dev, txq_id); /* Get a descriptor for the first part of the packet */ tx_desc = mvneta_txq_next_desc_get(txq); @@ -2689,7 +2689,7 @@ static int mvneta_probe(struct platform_device *pdev) return -EINVAL; } - dev = alloc_etherdev_mq(sizeof(struct mvneta_port), 8); + dev = alloc_etherdev_mqs(sizeof(struct mvneta_port), txq_number, rxq_number); if (!dev) return -ENOMEM; @@ -2844,4 +2844,3 @@ module_param(rxq_number, int, S_IRUGO); module_param(txq_number, int, S_IRUGO); module_param(rxq_def, int, S_IRUGO); -module_param(txq_def, int, S_IRUGO); -- cgit v1.2.3 From 91c4166c1a01c00b8bed74f7a7defa620071de88 Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Mon, 15 Apr 2013 07:31:28 +0000 Subject: drivers: net: ethernet: cpsw: get slave VLAN id from slave node instead of cpsw node Dual EMAC slave VLAN id must be got from slave node instead of cpsw node as VLAN id for each slave will be different. Reported-by: Mark Jackson Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/cpsw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 80cad06e5eb2..4781d3d8e182 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1380,7 +1380,7 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN); if (data->dual_emac) { - if (of_property_read_u32(node, "dual_emac_res_vlan", + if (of_property_read_u32(slave_node, "dual_emac_res_vlan", &prop)) { pr_err("Missing dual_emac_res_vlan in DT.\n"); slave_data->dual_emac_res_vlan = i+1; -- cgit v1.2.3 From 0635eb8a54cf0fea64b174bb68bc36b9c3d622db Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Mon, 15 Apr 2013 13:09:45 -0700 Subject: Move utf16 functions to kernel core and rename We want to be able to use the utf16 functions that are currently present in the EFI variables code in platform-specific code as well. Move them to the kernel core, and in the process rename them to accurately describe what they do - they don't handle UTF16, only UCS2. Signed-off-by: Matthew Garrett Signed-off-by: Matt Fleming --- drivers/firmware/Kconfig | 1 + drivers/firmware/efivars.c | 80 ++++++++++----------------------------------- include/linux/ucs2_string.h | 14 ++++++++ lib/Kconfig | 3 ++ lib/Makefile | 2 ++ lib/ucs2_string.c | 51 +++++++++++++++++++++++++++++ 6 files changed, 89 insertions(+), 62 deletions(-) create mode 100644 include/linux/ucs2_string.h create mode 100644 lib/ucs2_string.c (limited to 'drivers') diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 42c759a4d047..3e532002e4d1 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -39,6 +39,7 @@ config FIRMWARE_MEMMAP config EFI_VARS tristate "EFI Variable Support via sysfs" depends on EFI + select UCS2_STRING default n help If you say Y here, you are able to get EFI (Extensible Firmware diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index bf15d81d74e1..182ce9471175 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -80,6 +80,7 @@ #include #include #include +#include #include #include @@ -172,51 +173,6 @@ static void efivar_update_sysfs_entries(struct work_struct *); static DECLARE_WORK(efivar_work, efivar_update_sysfs_entries); static bool efivar_wq_enabled = true; -/* Return the number of unicode characters in data */ -static unsigned long -utf16_strnlen(efi_char16_t *s, size_t maxlength) -{ - unsigned long length = 0; - - while (*s++ != 0 && length < maxlength) - length++; - return length; -} - -static inline unsigned long -utf16_strlen(efi_char16_t *s) -{ - return utf16_strnlen(s, ~0UL); -} - -/* - * Return the number of bytes is the length of this string - * Note: this is NOT the same as the number of unicode characters - */ -static inline unsigned long -utf16_strsize(efi_char16_t *data, unsigned long maxlength) -{ - return utf16_strnlen(data, maxlength/sizeof(efi_char16_t)) * sizeof(efi_char16_t); -} - -static inline int -utf16_strncmp(const efi_char16_t *a, const efi_char16_t *b, size_t len) -{ - while (1) { - if (len == 0) - return 0; - if (*a < *b) - return -1; - if (*a > *b) - return 1; - if (*a == 0) /* implies *b == 0 */ - return 0; - a++; - b++; - len--; - } -} - static bool validate_device_path(struct efi_variable *var, int match, u8 *buffer, unsigned long len) @@ -268,7 +224,7 @@ validate_load_option(struct efi_variable *var, int match, u8 *buffer, u16 filepathlength; int i, desclength = 0, namelen; - namelen = utf16_strnlen(var->VariableName, sizeof(var->VariableName)); + namelen = ucs2_strnlen(var->VariableName, sizeof(var->VariableName)); /* Either "Boot" or "Driver" followed by four digits of hex */ for (i = match; i < match+4; i++) { @@ -291,7 +247,7 @@ validate_load_option(struct efi_variable *var, int match, u8 *buffer, * There's no stored length for the description, so it has to be * found by hand */ - desclength = utf16_strsize((efi_char16_t *)(buffer + 6), len - 6) + 2; + desclength = ucs2_strsize((efi_char16_t *)(buffer + 6), len - 6) + 2; /* Each boot entry must have a descriptor */ if (!desclength) @@ -581,7 +537,7 @@ efivar_store_raw(struct efivar_entry *entry, const char *buf, size_t count) spin_lock_irq(&efivars->lock); status = check_var_size_locked(efivars, new_var->Attributes, - new_var->DataSize + utf16_strsize(new_var->VariableName, 1024)); + new_var->DataSize + ucs2_strsize(new_var->VariableName, 1024)); if (status == EFI_SUCCESS || status == EFI_UNSUPPORTED) status = efivars->ops->set_variable(new_var->VariableName, @@ -759,7 +715,7 @@ static ssize_t efivarfs_file_write(struct file *file, * QueryVariableInfo() isn't supported by the firmware. */ - varsize = datasize + utf16_strsize(var->var.VariableName, 1024); + varsize = datasize + ucs2_strsize(var->var.VariableName, 1024); status = check_var_size(efivars, attributes, varsize); if (status != EFI_SUCCESS) { @@ -1211,7 +1167,7 @@ static int efivarfs_fill_super(struct super_block *sb, void *data, int silent) inode = NULL; - len = utf16_strlen(entry->var.VariableName); + len = ucs2_strlen(entry->var.VariableName); /* name, plus '-', plus GUID, plus NUL*/ name = kmalloc(len + 1 + GUID_LEN + 1, GFP_ATOMIC); @@ -1469,8 +1425,8 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count, if (efi_guidcmp(entry->var.VendorGuid, vendor)) continue; - if (utf16_strncmp(entry->var.VariableName, efi_name, - utf16_strlen(efi_name))) { + if (ucs2_strncmp(entry->var.VariableName, efi_name, + ucs2_strlen(efi_name))) { /* * Check if an old format, * which doesn't support holding @@ -1482,8 +1438,8 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count, for (i = 0; i < DUMP_NAME_LEN; i++) efi_name_old[i] = name_old[i]; - if (utf16_strncmp(entry->var.VariableName, efi_name_old, - utf16_strlen(efi_name_old))) + if (ucs2_strncmp(entry->var.VariableName, efi_name_old, + ucs2_strlen(efi_name_old))) continue; } @@ -1561,8 +1517,8 @@ static ssize_t efivar_create(struct file *filp, struct kobject *kobj, * Does this variable already exist? */ list_for_each_entry_safe(search_efivar, n, &efivars->list, list) { - strsize1 = utf16_strsize(search_efivar->var.VariableName, 1024); - strsize2 = utf16_strsize(new_var->VariableName, 1024); + strsize1 = ucs2_strsize(search_efivar->var.VariableName, 1024); + strsize2 = ucs2_strsize(new_var->VariableName, 1024); if (strsize1 == strsize2 && !memcmp(&(search_efivar->var.VariableName), new_var->VariableName, strsize1) && @@ -1578,7 +1534,7 @@ static ssize_t efivar_create(struct file *filp, struct kobject *kobj, } status = check_var_size_locked(efivars, new_var->Attributes, - new_var->DataSize + utf16_strsize(new_var->VariableName, 1024)); + new_var->DataSize + ucs2_strsize(new_var->VariableName, 1024)); if (status && status != EFI_UNSUPPORTED) { spin_unlock_irq(&efivars->lock); @@ -1602,7 +1558,7 @@ static ssize_t efivar_create(struct file *filp, struct kobject *kobj, /* Create the entry in sysfs. Locking is not required here */ status = efivar_create_sysfs_entry(efivars, - utf16_strsize(new_var->VariableName, + ucs2_strsize(new_var->VariableName, 1024), new_var->VariableName, &new_var->VendorGuid); @@ -1632,8 +1588,8 @@ static ssize_t efivar_delete(struct file *filp, struct kobject *kobj, * Does this variable already exist? */ list_for_each_entry_safe(search_efivar, n, &efivars->list, list) { - strsize1 = utf16_strsize(search_efivar->var.VariableName, 1024); - strsize2 = utf16_strsize(del_var->VariableName, 1024); + strsize1 = ucs2_strsize(search_efivar->var.VariableName, 1024); + strsize2 = ucs2_strsize(del_var->VariableName, 1024); if (strsize1 == strsize2 && !memcmp(&(search_efivar->var.VariableName), del_var->VariableName, strsize1) && @@ -1679,9 +1635,9 @@ static bool variable_is_present(efi_char16_t *variable_name, efi_guid_t *vendor) unsigned long strsize1, strsize2; bool found = false; - strsize1 = utf16_strsize(variable_name, 1024); + strsize1 = ucs2_strsize(variable_name, 1024); list_for_each_entry_safe(entry, n, &efivars->list, list) { - strsize2 = utf16_strsize(entry->var.VariableName, 1024); + strsize2 = ucs2_strsize(entry->var.VariableName, 1024); if (strsize1 == strsize2 && !memcmp(variable_name, &(entry->var.VariableName), strsize2) && diff --git a/include/linux/ucs2_string.h b/include/linux/ucs2_string.h new file mode 100644 index 000000000000..cbb20afdbc01 --- /dev/null +++ b/include/linux/ucs2_string.h @@ -0,0 +1,14 @@ +#ifndef _LINUX_UCS2_STRING_H_ +#define _LINUX_UCS2_STRING_H_ + +#include /* for size_t */ +#include /* for NULL */ + +typedef u16 ucs2_char_t; + +unsigned long ucs2_strnlen(const ucs2_char_t *s, size_t maxlength); +unsigned long ucs2_strlen(const ucs2_char_t *s); +unsigned long ucs2_strsize(const ucs2_char_t *data, unsigned long maxlength); +int ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len); + +#endif /* _LINUX_UCS2_STRING_H_ */ diff --git a/lib/Kconfig b/lib/Kconfig index 3958dc4389f9..fe01d418b09a 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -404,4 +404,7 @@ config OID_REGISTRY help Enable fast lookup object identifier registry. +config UCS2_STRING + tristate + endmenu diff --git a/lib/Makefile b/lib/Makefile index d7946ff75b2e..6e2cc561f761 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -174,3 +174,5 @@ quiet_cmd_build_OID_registry = GEN $@ cmd_build_OID_registry = perl $(srctree)/$(src)/build_OID_registry $< $@ clean-files += oid_registry_data.c + +obj-$(CONFIG_UCS2_STRING) += ucs2_string.o diff --git a/lib/ucs2_string.c b/lib/ucs2_string.c new file mode 100644 index 000000000000..6f500ef2301d --- /dev/null +++ b/lib/ucs2_string.c @@ -0,0 +1,51 @@ +#include +#include + +/* Return the number of unicode characters in data */ +unsigned long +ucs2_strnlen(const ucs2_char_t *s, size_t maxlength) +{ + unsigned long length = 0; + + while (*s++ != 0 && length < maxlength) + length++; + return length; +} +EXPORT_SYMBOL(ucs2_strnlen); + +unsigned long +ucs2_strlen(const ucs2_char_t *s) +{ + return ucs2_strnlen(s, ~0UL); +} +EXPORT_SYMBOL(ucs2_strlen); + +/* + * Return the number of bytes is the length of this string + * Note: this is NOT the same as the number of unicode characters + */ +unsigned long +ucs2_strsize(const ucs2_char_t *data, unsigned long maxlength) +{ + return ucs2_strnlen(data, maxlength/sizeof(ucs2_char_t)) * sizeof(ucs2_char_t); +} +EXPORT_SYMBOL(ucs2_strsize); + +int +ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len) +{ + while (1) { + if (len == 0) + return 0; + if (*a < *b) + return -1; + if (*a > *b) + return 1; + if (*a == 0) /* implies *b == 0 */ + return 0; + a++; + b++; + len--; + } +} +EXPORT_SYMBOL(ucs2_strncmp); -- cgit v1.2.3 From 32b161aa88aa40a83888a995c6e2ef81140219b1 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Tue, 16 Apr 2013 00:17:07 +0000 Subject: net: cdc_mbim: remove bogus sizeof() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The intention was to test against the constant, not the size of the constant. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/cdc_mbim.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 16c842997291..6bd91676d2cb 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -134,7 +134,7 @@ static struct sk_buff *cdc_mbim_tx_fixup(struct usbnet *dev, struct sk_buff *skb goto error; if (skb) { - if (skb->len <= sizeof(ETH_HLEN)) + if (skb->len <= ETH_HLEN) goto error; /* mapping VLANs to MBIM sessions: -- cgit v1.2.3 From 8d7ed0f051caf192994c02fbefb859eac03d1646 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Tue, 16 Apr 2013 00:42:42 +0000 Subject: net: fec: fix regression in link change accounting A link-down isn't properly saved in the FEC state, so we wouldn't restart the FEC after a repeated link-up. Regression was introduced with commit d97e7497 "net: fec: restart the FEC when PHY speed changes" Signed-off-by: Lucas Stach Tested-by: Fabio Estevam Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fec.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index f292c3aa423f..73195f643c9c 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -1002,6 +1002,7 @@ static void fec_enet_adjust_link(struct net_device *ndev) } else { if (fep->link) { fec_stop(ndev); + fep->link = phy_dev->link; status_change = 1; } } -- cgit v1.2.3 From 361cd29cf9363505c2a35bbf9a034a22feebfb07 Mon Sep 17 00:00:00 2001 From: Himanshu Madhani Date: Tue, 16 Apr 2013 18:11:10 +0000 Subject: qlcnic: fix beaconing test for 82xx adapter o Commit 319ecf121e1da3d75dd1bde32fed255532e61797 ("qlcnic: 83xx sysfs routines") introduced regression for beaconing test while refactoring 82xx code. This patch is to revert code to fix beaconing test for 82xx adapter. Signed-off-by: Himanshu Madhani Signed-off-by: Shahed Shaikh Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c index 987fb6f8adc3..5ef328af61d0 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c @@ -200,10 +200,10 @@ beacon_err: } err = qlcnic_config_led(adapter, b_state, b_rate); - if (!err) + if (!err) { err = len; - else ahw->beacon_state = b_state; + } if (test_and_clear_bit(__QLCNIC_DIAG_RES_ALLOC, &adapter->state)) qlcnic_diag_free_res(adapter->netdev, max_sds_rings); -- cgit v1.2.3 From 46faeed4a61e220b99591e9773057160eb437cc8 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Wed, 10 Apr 2013 17:47:46 -0500 Subject: rbd: do a safe list traversal in rbd_img_request_submit() It's possible that the reference to the object request dropped inside the loop in rbd_img_request_submit() will be the last one, in which case the content of the object pointer can't be trusted. Use a safe form of the object request list traversal to avoid problems. This resolves: http://tracker.ceph.com/issues/4705 Signed-off-by: Alex Elder Reviewed-by: Josh Durgin --- drivers/block/rbd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index f556f8a8b3f9..b7b7a88d9f68 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1742,9 +1742,10 @@ static int rbd_img_request_submit(struct rbd_img_request *img_request) struct rbd_device *rbd_dev = img_request->rbd_dev; struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; struct rbd_obj_request *obj_request; + struct rbd_obj_request *next_obj_request; dout("%s: img %p\n", __func__, img_request); - for_each_obj_request(img_request, obj_request) { + for_each_obj_request_safe(img_request, obj_request, next_obj_request) { int ret; obj_request->callback = rbd_img_obj_callback; -- cgit v1.2.3 From 355f1ecbcc81efb6611290b772e7ae77ece4059c Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Wed, 17 Apr 2013 15:58:23 -0700 Subject: thinkpad-acpi: kill hotkey_thread_mutex hotkey_kthread() does try_to_freeze() under hotkey_thread_mutex. We can simply kill this mutex, hotkey_poll_stop_sync() does not need to serialize with hotkey_kthread(). When kthread_stop() returns the thread is already dead, it called do_exit()->complete_vfork_done(). Reported-by: Artem Savkov Reported-by: Maciej Rutecki Signed-off-by: Oleg Nesterov Acked-by: Henrique de Moraes Holschuh Cc: Matthew Garrett Cc: "Rafael J. Wysocki" Reviewed-by: Mandeep Singh Baines Cc: Aaron Lu Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/platform/x86/thinkpad_acpi.c | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 9a907567f41e..edec135b1685 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -1964,9 +1964,6 @@ struct tp_nvram_state { /* kthread for the hotkey poller */ static struct task_struct *tpacpi_hotkey_task; -/* Acquired while the poller kthread is running, use to sync start/stop */ -static struct mutex hotkey_thread_mutex; - /* * Acquire mutex to write poller control variables as an * atomic block. @@ -2462,8 +2459,6 @@ static int hotkey_kthread(void *data) unsigned int poll_freq; bool was_frozen; - mutex_lock(&hotkey_thread_mutex); - if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) goto exit; @@ -2523,7 +2518,6 @@ static int hotkey_kthread(void *data) } exit: - mutex_unlock(&hotkey_thread_mutex); return 0; } @@ -2533,9 +2527,6 @@ static void hotkey_poll_stop_sync(void) if (tpacpi_hotkey_task) { kthread_stop(tpacpi_hotkey_task); tpacpi_hotkey_task = NULL; - mutex_lock(&hotkey_thread_mutex); - /* at this point, the thread did exit */ - mutex_unlock(&hotkey_thread_mutex); } } @@ -3234,7 +3225,6 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) mutex_init(&hotkey_mutex); #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL - mutex_init(&hotkey_thread_mutex); mutex_init(&hotkey_thread_data_mutex); #endif -- cgit v1.2.3 From d875cf08391a811703f8adf39db598cac9ece6a1 Mon Sep 17 00:00:00 2001 From: Andrei Epure Date: Wed, 17 Apr 2013 15:58:24 -0700 Subject: drivers/video/mmp/core.c: fix use-after-free bug Found with coccinelle. Signed-off-by: Andrei Epure Cc: Florian Tobias Schandinat Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/mmp/core.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/video/mmp/core.c b/drivers/video/mmp/core.c index 9ed83419038b..84de2632857a 100644 --- a/drivers/video/mmp/core.c +++ b/drivers/video/mmp/core.c @@ -252,7 +252,5 @@ void mmp_unregister_path(struct mmp_path *path) kfree(path); mutex_unlock(&disp_lock); - - dev_info(path->dev, "de-register %s\n", path->name); } EXPORT_SYMBOL_GPL(mmp_unregister_path); -- cgit v1.2.3 From d202f05158442396033f416df376f8ece1f563df Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Thu, 18 Apr 2013 09:52:59 +0200 Subject: dmaengine: at_hdmac: fix race condition in atc_advance_work() The BUG_ON() directive is triggered probably due to a latency modification following inclusion of commit c10d73671ad3 ("softirq: reduce latencies"). This condition has not been met before 3.9-rc1 and doesn't trigger without this patch. We now make sure that DMA channel is idle before calling atc_complete_all() which makes the BUG_ON() "protection" useless. Signed-off-by: Ludovic Desroches Signed-off-by: Nicolas Ferre Acked-by: Vinod Koul Signed-off-by: Linus Torvalds --- drivers/dma/at_hdmac.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 6e13f262139a..88cfc61329d2 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -310,8 +310,6 @@ static void atc_complete_all(struct at_dma_chan *atchan) dev_vdbg(chan2dev(&atchan->chan_common), "complete all\n"); - BUG_ON(atc_chan_is_enabled(atchan)); - /* * Submit queued descriptors ASAP, i.e. before we go through * the completed ones. @@ -368,6 +366,9 @@ static void atc_advance_work(struct at_dma_chan *atchan) { dev_vdbg(chan2dev(&atchan->chan_common), "advance_work\n"); + if (atc_chan_is_enabled(atchan)) + return; + if (list_empty(&atchan->active_list) || list_is_singular(&atchan->active_list)) { atc_complete_all(atchan); @@ -1078,9 +1079,7 @@ static void atc_issue_pending(struct dma_chan *chan) return; spin_lock_irqsave(&atchan->lock, flags); - if (!atc_chan_is_enabled(atchan)) { - atc_advance_work(atchan); - } + atc_advance_work(atchan); spin_unlock_irqrestore(&atchan->lock, flags); } -- cgit v1.2.3 From 0a82a8d132b26d438eb90b3ab35a7016e7227a1d Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 18 Apr 2013 09:00:26 -0700 Subject: Revert "block: add missing block_bio_complete() tracepoint" This reverts commit 3a366e614d0837d9fc23f78cdb1a1186ebc3387f. Wanlong Gao reports that it causes a kernel panic on his machine several minutes after boot. Reverting it removes the panic. Jens says: "It's not quite clear why that is yet, so I think we should just revert the commit for 3.9 final (which I'm assuming is pretty close). The wifi is crap at the LSF hotel, so sending this email instead of queueing up a revert and pull request." Reported-by: Wanlong Gao Requested-by: Jens Axboe Cc: Tejun Heo Cc: Steven Rostedt Signed-off-by: Linus Torvalds --- block/blk-core.c | 1 + drivers/md/dm.c | 1 + drivers/md/raid5.c | 11 ++++++++++- fs/bio.c | 2 -- include/linux/blktrace_api.h | 1 - include/trace/events/block.h | 8 ++++---- kernel/trace/blktrace.c | 26 +++----------------------- 7 files changed, 19 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/block/blk-core.c b/block/blk-core.c index 074b758efc42..7c288358a745 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -39,6 +39,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_remap); EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_remap); +EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_complete); EXPORT_TRACEPOINT_SYMBOL_GPL(block_unplug); DEFINE_IDA(blk_queue_ida); diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 7e469260fe5e..9a0bdad9ad8f 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -611,6 +611,7 @@ static void dec_pending(struct dm_io *io, int error) queue_io(md, bio); } else { /* done with normal IO or empty flush */ + trace_block_bio_complete(md->queue, bio, io_error); bio_endio(bio, io_error); } } diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 24909eb13fec..f4e87bfc7567 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -184,6 +184,8 @@ static void return_io(struct bio *return_bi) return_bi = bi->bi_next; bi->bi_next = NULL; bi->bi_size = 0; + trace_block_bio_complete(bdev_get_queue(bi->bi_bdev), + bi, 0); bio_endio(bi, 0); bi = return_bi; } @@ -3914,6 +3916,8 @@ static void raid5_align_endio(struct bio *bi, int error) rdev_dec_pending(rdev, conf->mddev); if (!error && uptodate) { + trace_block_bio_complete(bdev_get_queue(raid_bi->bi_bdev), + raid_bi, 0); bio_endio(raid_bi, 0); if (atomic_dec_and_test(&conf->active_aligned_reads)) wake_up(&conf->wait_for_stripe); @@ -4382,6 +4386,8 @@ static void make_request(struct mddev *mddev, struct bio * bi) if ( rw == WRITE ) md_write_end(mddev); + trace_block_bio_complete(bdev_get_queue(bi->bi_bdev), + bi, 0); bio_endio(bi, 0); } } @@ -4758,8 +4764,11 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio) handled++; } remaining = raid5_dec_bi_active_stripes(raid_bio); - if (remaining == 0) + if (remaining == 0) { + trace_block_bio_complete(bdev_get_queue(raid_bio->bi_bdev), + raid_bio, 0); bio_endio(raid_bio, 0); + } if (atomic_dec_and_test(&conf->active_aligned_reads)) wake_up(&conf->wait_for_stripe); return handled; diff --git a/fs/bio.c b/fs/bio.c index bb5768f59b32..b96fc6ce4855 100644 --- a/fs/bio.c +++ b/fs/bio.c @@ -1428,8 +1428,6 @@ void bio_endio(struct bio *bio, int error) else if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) error = -EIO; - trace_block_bio_complete(bio, error); - if (bio->bi_end_io) bio->bi_end_io(bio, error); } diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h index 0ea61e07a91c..7c2e030e72f1 100644 --- a/include/linux/blktrace_api.h +++ b/include/linux/blktrace_api.h @@ -12,7 +12,6 @@ struct blk_trace { int trace_state; - bool rq_based; struct rchan *rchan; unsigned long __percpu *sequence; unsigned char __percpu *msg_data; diff --git a/include/trace/events/block.h b/include/trace/events/block.h index 9961726523d0..9c1467357b03 100644 --- a/include/trace/events/block.h +++ b/include/trace/events/block.h @@ -257,6 +257,7 @@ TRACE_EVENT(block_bio_bounce, /** * block_bio_complete - completed all work on the block operation + * @q: queue holding the block operation * @bio: block operation completed * @error: io error value * @@ -265,9 +266,9 @@ TRACE_EVENT(block_bio_bounce, */ TRACE_EVENT(block_bio_complete, - TP_PROTO(struct bio *bio, int error), + TP_PROTO(struct request_queue *q, struct bio *bio, int error), - TP_ARGS(bio, error), + TP_ARGS(q, bio, error), TP_STRUCT__entry( __field( dev_t, dev ) @@ -278,8 +279,7 @@ TRACE_EVENT(block_bio_complete, ), TP_fast_assign( - __entry->dev = bio->bi_bdev ? - bio->bi_bdev->bd_dev : 0; + __entry->dev = bio->bi_bdev->bd_dev; __entry->sector = bio->bi_sector; __entry->nr_sector = bio->bi_size >> 9; __entry->error = error; diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 9e5b8c272eec..5a0f781cd729 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -739,12 +739,6 @@ static void blk_add_trace_rq_complete(void *ignore, struct request_queue *q, struct request *rq) { - struct blk_trace *bt = q->blk_trace; - - /* if control ever passes through here, it's a request based driver */ - if (unlikely(bt && !bt->rq_based)) - bt->rq_based = true; - blk_add_trace_rq(q, rq, BLK_TA_COMPLETE); } @@ -780,24 +774,10 @@ static void blk_add_trace_bio_bounce(void *ignore, blk_add_trace_bio(q, bio, BLK_TA_BOUNCE, 0); } -static void blk_add_trace_bio_complete(void *ignore, struct bio *bio, int error) +static void blk_add_trace_bio_complete(void *ignore, + struct request_queue *q, struct bio *bio, + int error) { - struct request_queue *q; - struct blk_trace *bt; - - if (!bio->bi_bdev) - return; - - q = bdev_get_queue(bio->bi_bdev); - bt = q->blk_trace; - - /* - * Request based drivers will generate both rq and bio completions. - * Ignore bio ones. - */ - if (likely(!bt) || bt->rq_based) - return; - blk_add_trace_bio(q, bio, BLK_TA_COMPLETE, error); } -- cgit v1.2.3 From f9d40f6a9921cc7d9385f64362314054e22152bd Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Wed, 17 Apr 2013 20:41:04 +0000 Subject: igb: Revert support for build_skb in igb This patch actually reverts: igb: Support using build_skb in the case that jumbo frames are disabled The reason for reverting this patch is that it can lead to data corruption. The following flow was pointed out by Ben Hutchings: 1. skb is forwarded to another device 2. Packet headers are modified and it's put into a queue 3. Second packet is received into the other half of this page 4. Page cannot be reused, so is DMA-unmapped 5. The DMA mapping was non-coherent, so unmap copies or invalidates cache The headers added in step 2 get trashed in step 5. Reported-by: Ben Hutchings Signed-off-by: Alexander Duyck Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/igb/igb.h | 8 --- drivers/net/ethernet/intel/igb/igb_main.c | 110 ++---------------------------- 2 files changed, 4 insertions(+), 114 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 25151401c2ab..ab577a763a20 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -284,18 +284,10 @@ struct igb_q_vector { enum e1000_ring_flags_t { IGB_RING_FLAG_RX_SCTP_CSUM, IGB_RING_FLAG_RX_LB_VLAN_BSWAP, - IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, IGB_RING_FLAG_TX_CTX_IDX, IGB_RING_FLAG_TX_DETECT_HANG }; -#define ring_uses_build_skb(ring) \ - test_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags) -#define set_ring_build_skb_enabled(ring) \ - set_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags) -#define clear_ring_build_skb_enabled(ring) \ - clear_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags) - #define IGB_TXD_DCMD (E1000_ADVTXD_DCMD_EOP | E1000_ADVTXD_DCMD_RS) #define IGB_RX_DESC(R, i) \ diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 8496adfc6a68..64f75291e3a5 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3350,20 +3350,6 @@ void igb_configure_rx_ring(struct igb_adapter *adapter, wr32(E1000_RXDCTL(reg_idx), rxdctl); } -static void igb_set_rx_buffer_len(struct igb_adapter *adapter, - struct igb_ring *rx_ring) -{ -#define IGB_MAX_BUILD_SKB_SIZE \ - (SKB_WITH_OVERHEAD(IGB_RX_BUFSZ) - \ - (NET_SKB_PAD + NET_IP_ALIGN + IGB_TS_HDR_LEN)) - - /* set build_skb flag */ - if (adapter->max_frame_size <= IGB_MAX_BUILD_SKB_SIZE) - set_ring_build_skb_enabled(rx_ring); - else - clear_ring_build_skb_enabled(rx_ring); -} - /** * igb_configure_rx - Configure receive Unit after Reset * @adapter: board private structure @@ -3383,11 +3369,8 @@ static void igb_configure_rx(struct igb_adapter *adapter) /* Setup the HW Rx Head and Tail Descriptor Pointers and * the Base and Length of the Rx Descriptor Ring */ - for (i = 0; i < adapter->num_rx_queues; i++) { - struct igb_ring *rx_ring = adapter->rx_ring[i]; - igb_set_rx_buffer_len(adapter, rx_ring); - igb_configure_rx_ring(adapter, rx_ring); - } + for (i = 0; i < adapter->num_rx_queues; i++) + igb_configure_rx_ring(adapter, adapter->rx_ring[i]); } /** @@ -6203,78 +6186,6 @@ static bool igb_add_rx_frag(struct igb_ring *rx_ring, return igb_can_reuse_rx_page(rx_buffer, page, truesize); } -static struct sk_buff *igb_build_rx_buffer(struct igb_ring *rx_ring, - union e1000_adv_rx_desc *rx_desc) -{ - struct igb_rx_buffer *rx_buffer; - struct sk_buff *skb; - struct page *page; - void *page_addr; - unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); -#if (PAGE_SIZE < 8192) - unsigned int truesize = IGB_RX_BUFSZ; -#else - unsigned int truesize = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + - SKB_DATA_ALIGN(NET_SKB_PAD + - NET_IP_ALIGN + - size); -#endif - - /* If we spanned a buffer we have a huge mess so test for it */ - BUG_ON(unlikely(!igb_test_staterr(rx_desc, E1000_RXD_STAT_EOP))); - - rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; - page = rx_buffer->page; - prefetchw(page); - - page_addr = page_address(page) + rx_buffer->page_offset; - - /* prefetch first cache line of first page */ - prefetch(page_addr + NET_SKB_PAD + NET_IP_ALIGN); -#if L1_CACHE_BYTES < 128 - prefetch(page_addr + L1_CACHE_BYTES + NET_SKB_PAD + NET_IP_ALIGN); -#endif - - /* build an skb to around the page buffer */ - skb = build_skb(page_addr, truesize); - if (unlikely(!skb)) { - rx_ring->rx_stats.alloc_failed++; - return NULL; - } - - /* we are reusing so sync this buffer for CPU use */ - dma_sync_single_range_for_cpu(rx_ring->dev, - rx_buffer->dma, - rx_buffer->page_offset, - IGB_RX_BUFSZ, - DMA_FROM_DEVICE); - - /* update pointers within the skb to store the data */ - skb_reserve(skb, NET_IP_ALIGN + NET_SKB_PAD); - __skb_put(skb, size); - - /* pull timestamp out of packet data */ - if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) { - igb_ptp_rx_pktstamp(rx_ring->q_vector, skb->data, skb); - __skb_pull(skb, IGB_TS_HDR_LEN); - } - - if (igb_can_reuse_rx_page(rx_buffer, page, truesize)) { - /* hand second half of page back to the ring */ - igb_reuse_rx_page(rx_ring, rx_buffer); - } else { - /* we are not reusing the buffer so unmap it */ - dma_unmap_page(rx_ring->dev, rx_buffer->dma, - PAGE_SIZE, DMA_FROM_DEVICE); - } - - /* clear contents of buffer_info */ - rx_buffer->dma = 0; - rx_buffer->page = NULL; - - return skb; -} - static struct sk_buff *igb_fetch_rx_buffer(struct igb_ring *rx_ring, union e1000_adv_rx_desc *rx_desc, struct sk_buff *skb) @@ -6690,10 +6601,7 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget) rmb(); /* retrieve a buffer from the ring */ - if (ring_uses_build_skb(rx_ring)) - skb = igb_build_rx_buffer(rx_ring, rx_desc); - else - skb = igb_fetch_rx_buffer(rx_ring, rx_desc, skb); + skb = igb_fetch_rx_buffer(rx_ring, rx_desc, skb); /* exit if we failed to retrieve a buffer */ if (!skb) @@ -6780,14 +6688,6 @@ static bool igb_alloc_mapped_page(struct igb_ring *rx_ring, return true; } -static inline unsigned int igb_rx_offset(struct igb_ring *rx_ring) -{ - if (ring_uses_build_skb(rx_ring)) - return NET_SKB_PAD + NET_IP_ALIGN; - else - return 0; -} - /** * igb_alloc_rx_buffers - Replace used receive buffers; packet split * @adapter: address of board private structure @@ -6814,9 +6714,7 @@ void igb_alloc_rx_buffers(struct igb_ring *rx_ring, u16 cleaned_count) * Refresh the desc even if buffer_addrs didn't change * because each write-back erases this info. */ - rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + - bi->page_offset + - igb_rx_offset(rx_ring)); + rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset); rx_desc++; bi++; -- cgit v1.2.3 From 026ac677414c62550269d53907ea47412ec2bd81 Mon Sep 17 00:00:00 2001 From: Greg Rose Date: Wed, 17 Apr 2013 20:41:35 +0000 Subject: ixgbe: Fix a bug in setting VF VLAN via PF The PF driver does not check if the administrator has already set a VF VLAN via the PF driver before setting the new VLAN. This results in the following scenario: A) Administrator sets VF to VLAN 100 B) Administrator sets VF to VLAN 100 C) Administrator sets VF to VLAN 200 D) The VF driver continues to be able to receive traffic on VLAN 100 because the VLVFB pool enable bit for that VF was left set instead of being cleared as it should be. This fix ensures that the old VLAN filter for VF is first removed and the pool bit enable for VF is cleared so that it no longer receives traffic on VLAN 100. Signed-off-by: Greg Rose Tested-by: Sibai Li Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index d44b4d21268c..97e33669c0b9 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -1049,6 +1049,12 @@ int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) return -EINVAL; if (vlan || qos) { + if (adapter->vfinfo[vf].pf_vlan) + err = ixgbe_set_vf_vlan(adapter, false, + adapter->vfinfo[vf].pf_vlan, + vf); + if (err) + goto out; err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); if (err) goto out; -- cgit v1.2.3 From a4325ea242d9d0889cb7e86811fef3ff3d714d29 Mon Sep 17 00:00:00 2001 From: Jitendra Kalsaria Date: Thu, 18 Apr 2013 08:10:04 +0000 Subject: qlcnic: Stop traffic before performing loopback test Before conducting loopback test by sending packets, driver should stop transmit queue and turn off carrier. Signed-off-by: Jitendra Kalsaria Signed-off-by: Shahed Shaikh Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c index cd5ae8813cb3..284d6288888c 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c @@ -1500,6 +1500,12 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode) } } while ((adapter->ahw->linkup && ahw->has_link_events) != 1); + /* Make sure carrier is off and queue is stopped during loopback */ + if (netif_running(netdev)) { + netif_carrier_off(netdev); + netif_stop_queue(netdev); + } + ret = qlcnic_do_lb_test(adapter, mode); qlcnic_83xx_clear_lb_mode(adapter, mode); -- cgit v1.2.3 From 3eead213fe9828b511faf74a7ed566b56b2b3bcc Mon Sep 17 00:00:00 2001 From: Sritej Velaga Date: Thu, 18 Apr 2013 08:10:05 +0000 Subject: qlcnic: fix TSO race condition When driver receives a packet with gso size > 0 and when TSO is disabled, it should be transmitted as a TSO packet to prevent Tx timeout and subsequent firmware reset. Signed-off-by: Sritej Velaga Signed-off-by: Shahed Shaikh Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c index 0e630061bff3..5fa847fe388a 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c @@ -358,8 +358,7 @@ set_flags: memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN); } opcode = TX_ETHER_PKT; - if ((adapter->netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && - skb_shinfo(skb)->gso_size > 0) { + if (skb_is_gso(skb)) { hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); first_desc->total_hdr_length = hdr_len; -- cgit v1.2.3 From 7bc27a8cd4db2e6ed71d29b5ceae5b4ee873c9af Mon Sep 17 00:00:00 2001 From: Shahed Shaikh Date: Thu, 18 Apr 2013 08:10:06 +0000 Subject: qlcnic: Fix typo in logs o Debug logs were not matching with code functionality. o Changed dev_info to netdev_err Signed-off-by: Shahed Shaikh Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c index 284d6288888c..edd63f1230f3 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c @@ -2786,6 +2786,7 @@ static u64 *qlcnic_83xx_fill_stats(struct qlcnic_adapter *adapter, void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data) { struct qlcnic_cmd_args cmd; + struct net_device *netdev = adapter->netdev; int ret = 0; qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_STATISTICS); @@ -2795,7 +2796,7 @@ void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data) data = qlcnic_83xx_fill_stats(adapter, &cmd, data, QLC_83XX_STAT_TX, &ret); if (ret) { - dev_info(&adapter->pdev->dev, "Error getting MAC stats\n"); + netdev_err(netdev, "Error getting Tx stats\n"); goto out; } /* Get MAC stats */ @@ -2805,8 +2806,7 @@ void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data) data = qlcnic_83xx_fill_stats(adapter, &cmd, data, QLC_83XX_STAT_MAC, &ret); if (ret) { - dev_info(&adapter->pdev->dev, - "Error getting Rx stats\n"); + netdev_err(netdev, "Error getting MAC stats\n"); goto out; } /* Get Rx stats */ @@ -2816,8 +2816,7 @@ void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data) data = qlcnic_83xx_fill_stats(adapter, &cmd, data, QLC_83XX_STAT_RX, &ret); if (ret) - dev_info(&adapter->pdev->dev, - "Error getting Tx stats\n"); + netdev_err(netdev, "Error getting Rx stats\n"); out: qlcnic_free_mbx_args(&cmd); } -- cgit v1.2.3 From d46f7c4df342c27cea676939d7c005f1e86173e9 Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Wed, 17 Apr 2013 22:49:05 +0000 Subject: bnx2x: Prevent UNDI FW illegal host access When loading after UNDI (e.g., Boot from SAN) the UNDI does not gracefully yield its resources; The bnx2x driver handles that release itself. During the manipulation required to release those resources, it's possible for the UNDI to try and write to memory regions which are no longer accessible, causing the PCI bus to prevent further writes from the chip. This would in turn cause DMAE timeouts later on in the driver, as the driver will be unable to use the chip's DMA engines. This patch prevents the chip from actually writing through the PCI bus in said scenario, thus allowing the release without the unfortunate by-product. Signed-off-by: Dmitry Kravkov Signed-off-by: Yuval Mintz Signed-off-by: Ariel Elior Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 8e58da909f5c..c50696b396f1 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -9878,6 +9878,10 @@ static int bnx2x_prev_unload_common(struct bnx2x *bp) REG_RD(bp, NIG_REG_NIG_INT_STS_CLR_0); } } + if (!CHIP_IS_E1x(bp)) + /* block FW from writing to host */ + REG_WR(bp, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, 0); + /* wait until BRB is empty */ tmp_reg = REG_RD(bp, BRB1_REG_NUM_OF_FULL_BLOCKS); while (timer_count) { -- cgit v1.2.3 From 0c14e5ced264620284bd96f888614768c9bd0976 Mon Sep 17 00:00:00 2001 From: Ariel Elior Date: Wed, 17 Apr 2013 22:49:06 +0000 Subject: bnx2x: Fix status blocks configuration This fixes 2 issues regarding bnx2x's status blocks: 1. ethtool -c caused corruption of status blocks in FW RAM. 2. when using multi-CoS, the configuration of the timeout values of status blocks is incorrect, harming the coalescing of interrupts for such CoSs. Signed-off-by: Ariel Elior Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index 4046f97378c2..57619dd4a92b 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -2614,6 +2614,9 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) } } + /* initialize FW coalescing state machines in RAM */ + bnx2x_update_coalesce(bp); + /* setup the leading queue */ rc = bnx2x_setup_leading(bp); if (rc) { @@ -4580,11 +4583,11 @@ static void storm_memset_hc_disable(struct bnx2x *bp, u8 port, u32 enable_flag = disable ? 0 : (1 << HC_INDEX_DATA_HC_ENABLED_SHIFT); u32 addr = BAR_CSTRORM_INTMEM + CSTORM_STATUS_BLOCK_DATA_FLAGS_OFFSET(fw_sb_id, sb_index); - u16 flags = REG_RD16(bp, addr); + u8 flags = REG_RD8(bp, addr); /* clear and set */ flags &= ~HC_INDEX_DATA_HC_ENABLED; flags |= enable_flag; - REG_WR16(bp, addr, flags); + REG_WR8(bp, addr, flags); DP(NETIF_MSG_IFUP, "port %x fw_sb_id %d sb_index %d disable %d\n", port, fw_sb_id, sb_index, disable); -- cgit v1.2.3 From 4394542ca4ec9f28c3c8405063d200b1e7c347d7 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 15 Apr 2013 17:03:24 +0000 Subject: bonding: fix l23 and l34 load balancing in forwarding path Since commit 6b923cb7188d46 (bonding: support for IPv6 transmit hashing) bonding doesn't properly hash traffic in forwarding setups. Vitaly V. Bursov diagnosed that skb_network_header_len() returned 0 in this case. More generally, the transport header might not be in the skb head. Use pskb_may_pull() & skb_header_pointer() to get it right, and use proto_ports_offset() in bond_xmit_hash_policy_l34() to get support for more protocols than TCP and UDP. Reported-by: Vitaly V. Bursov Signed-off-by: Eric Dumazet Cc: Jay Vosburgh Cc: Andy Gospodarek Cc: John Eaglesham Tested-by: Vitaly V. Bursov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 55 ++++++++++++++++++++++------------------- 1 file changed, 30 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index a61a760484f7..dea8ce20fea4 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3296,20 +3296,22 @@ static int bond_xmit_hash_policy_l2(struct sk_buff *skb, int count) */ static int bond_xmit_hash_policy_l23(struct sk_buff *skb, int count) { - struct ethhdr *data = (struct ethhdr *)skb->data; - struct iphdr *iph; - struct ipv6hdr *ipv6h; + const struct ethhdr *data; + const struct iphdr *iph; + const struct ipv6hdr *ipv6h; u32 v6hash; - __be32 *s, *d; + const __be32 *s, *d; if (skb->protocol == htons(ETH_P_IP) && - skb_network_header_len(skb) >= sizeof(*iph)) { + pskb_network_may_pull(skb, sizeof(*iph))) { iph = ip_hdr(skb); + data = (struct ethhdr *)skb->data; return ((ntohl(iph->saddr ^ iph->daddr) & 0xffff) ^ (data->h_dest[5] ^ data->h_source[5])) % count; } else if (skb->protocol == htons(ETH_P_IPV6) && - skb_network_header_len(skb) >= sizeof(*ipv6h)) { + pskb_network_may_pull(skb, sizeof(*ipv6h))) { ipv6h = ipv6_hdr(skb); + data = (struct ethhdr *)skb->data; s = &ipv6h->saddr.s6_addr32[0]; d = &ipv6h->daddr.s6_addr32[0]; v6hash = (s[1] ^ d[1]) ^ (s[2] ^ d[2]) ^ (s[3] ^ d[3]); @@ -3328,33 +3330,36 @@ static int bond_xmit_hash_policy_l23(struct sk_buff *skb, int count) static int bond_xmit_hash_policy_l34(struct sk_buff *skb, int count) { u32 layer4_xor = 0; - struct iphdr *iph; - struct ipv6hdr *ipv6h; - __be32 *s, *d; - __be16 *layer4hdr; + const struct iphdr *iph; + const struct ipv6hdr *ipv6h; + const __be32 *s, *d; + const __be16 *l4 = NULL; + __be16 _l4[2]; + int noff = skb_network_offset(skb); + int poff; if (skb->protocol == htons(ETH_P_IP) && - skb_network_header_len(skb) >= sizeof(*iph)) { + pskb_may_pull(skb, noff + sizeof(*iph))) { iph = ip_hdr(skb); - if (!ip_is_fragment(iph) && - (iph->protocol == IPPROTO_TCP || - iph->protocol == IPPROTO_UDP) && - (skb_headlen(skb) - skb_network_offset(skb) >= - iph->ihl * sizeof(u32) + sizeof(*layer4hdr) * 2)) { - layer4hdr = (__be16 *)((u32 *)iph + iph->ihl); - layer4_xor = ntohs(*layer4hdr ^ *(layer4hdr + 1)); + poff = proto_ports_offset(iph->protocol); + + if (!ip_is_fragment(iph) && poff >= 0) { + l4 = skb_header_pointer(skb, noff + (iph->ihl << 2) + poff, + sizeof(_l4), &_l4); + if (l4) + layer4_xor = ntohs(l4[0] ^ l4[1]); } return (layer4_xor ^ ((ntohl(iph->saddr ^ iph->daddr)) & 0xffff)) % count; } else if (skb->protocol == htons(ETH_P_IPV6) && - skb_network_header_len(skb) >= sizeof(*ipv6h)) { + pskb_may_pull(skb, noff + sizeof(*ipv6h))) { ipv6h = ipv6_hdr(skb); - if ((ipv6h->nexthdr == IPPROTO_TCP || - ipv6h->nexthdr == IPPROTO_UDP) && - (skb_headlen(skb) - skb_network_offset(skb) >= - sizeof(*ipv6h) + sizeof(*layer4hdr) * 2)) { - layer4hdr = (__be16 *)(ipv6h + 1); - layer4_xor = ntohs(*layer4hdr ^ *(layer4hdr + 1)); + poff = proto_ports_offset(ipv6h->nexthdr); + if (poff >= 0) { + l4 = skb_header_pointer(skb, noff + sizeof(*ipv6h) + poff, + sizeof(_l4), &_l4); + if (l4) + layer4_xor = ntohs(l4[0] ^ l4[1]); } s = &ipv6h->saddr.s6_addr32[0]; d = &ipv6h->daddr.s6_addr32[0]; -- cgit v1.2.3 From c857b7f45b1f9fb7bad1eaa42b8ad68327738232 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Thu, 18 Apr 2013 14:53:10 -0700 Subject: Revert "hp-wmi: Add support for SMBus hotkeys" This reverts commit fabf85e3ca15d5b94058f391dac8df870cdd427a which breaks hotkey support on some other HP laptops. We'll try doing this differently in 3.10. Signed-off-by: Matthew Garrett --- drivers/platform/x86/hp-wmi.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 45cacf79f3a7..1a779bbfb87d 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -134,7 +134,6 @@ static const struct key_entry hp_wmi_keymap[] = { { KE_KEY, 0x2142, { KEY_MEDIA } }, { KE_KEY, 0x213b, { KEY_INFO } }, { KE_KEY, 0x2169, { KEY_DIRECTION } }, - { KE_KEY, 0x216a, { KEY_SETUP } }, { KE_KEY, 0x231b, { KEY_HELP } }, { KE_END, 0 } }; @@ -925,9 +924,6 @@ static int __init hp_wmi_init(void) err = hp_wmi_input_setup(); if (err) return err; - - //Enable magic for hotkeys that run on the SMBus - ec_write(0xe6,0x6e); } if (bios_capable) { -- cgit v1.2.3 From 1582eea2081d54b6f9775e8fddc943b7e8e953a6 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Tue, 16 Apr 2013 16:09:33 -0700 Subject: Input: wacom - DTH2242 Grip Pen id was off by one bit Signed-off-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 49fdff02b5fe..9ec24df36506 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -359,7 +359,7 @@ static int wacom_intuos_inout(struct wacom_wac *wacom) case 0x802: /* Intuos4 General Pen */ case 0x804: /* Intuos4 Marker Pen */ case 0x40802: /* Intuos4 Classic Pen */ - case 0x18803: /* DTH2242 Grip Pen */ + case 0x18802: /* DTH2242 Grip Pen */ case 0x022: wacom->tool[idx] = BTN_TOOL_PEN; break; -- cgit v1.2.3 From 5846115b30f3a881e542c8bfde59a699c1c13740 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Tue, 16 Apr 2013 16:10:08 -0700 Subject: Input: wacom - fix "can not retrieve extra class descriptor" for DTH2242 Same as Cintiq 24HDT, DTH2242 has two interfaces sharing one configuration. This patch ignores the second interface. Signed-off-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 9ec24df36506..0bfd8cf25200 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -2144,7 +2144,7 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0x44) }, { USB_DEVICE_WACOM(0x45) }, { USB_DEVICE_WACOM(0x59) }, - { USB_DEVICE_WACOM(0x5D) }, + { USB_DEVICE_DETAILED(0x5D, USB_CLASS_HID, 0, 0) }, { USB_DEVICE_WACOM(0xB0) }, { USB_DEVICE_WACOM(0xB1) }, { USB_DEVICE_WACOM(0xB2) }, -- cgit v1.2.3 From 2323036dfec8ce3ce6e1c86a49a31b039f3300d1 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 19 Apr 2013 09:46:39 -0700 Subject: vm: convert HPET mmap to vm_iomap_memory() helper This is my example conversion of a few existing mmap users. The HPET case is simple, widely available, and easy to test (Clemens Ladisch sent a trivial test-program for it). Test-program-by: Clemens Ladisch Signed-off-by: Linus Torvalds --- drivers/char/hpet.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index e3f9a99b8522..d784650d14f0 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -373,26 +373,14 @@ static int hpet_mmap(struct file *file, struct vm_area_struct *vma) struct hpet_dev *devp; unsigned long addr; - if (((vma->vm_end - vma->vm_start) != PAGE_SIZE) || vma->vm_pgoff) - return -EINVAL; - devp = file->private_data; addr = devp->hd_hpets->hp_hpet_phys; if (addr & (PAGE_SIZE - 1)) return -ENOSYS; - vma->vm_flags |= VM_IO; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - - if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT, - PAGE_SIZE, vma->vm_page_prot)) { - printk(KERN_ERR "%s: io_remap_pfn_range failed\n", - __func__); - return -EAGAIN; - } - - return 0; + return vm_iomap_memory(vma, addr, PAGE_SIZE); #else return -ENOSYS; #endif -- cgit v1.2.3 From 8558e4a26b00225efeb085725bc319f91201b239 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 19 Apr 2013 09:53:07 -0700 Subject: vm: convert mtdchar mmap to vm_iomap_memory() helper This is my example conversion of a few existing mmap users. The mtdchar case is actually disabled right now (and stays disabled), but I did it because it showed up on my "git grep", and I was familiar with the code due to fixing an overflow problem in the code in commit 9c603e53d380 ("mtdchar: fix offset overflow detection"). Signed-off-by: Linus Torvalds --- drivers/mtd/mtdchar.c | 32 ++------------------------------ 1 file changed, 2 insertions(+), 30 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 92ab30ab00dc..61a1b22c05e7 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1159,45 +1159,17 @@ static int mtdchar_mmap(struct file *file, struct vm_area_struct *vma) struct mtd_file_info *mfi = file->private_data; struct mtd_info *mtd = mfi->mtd; struct map_info *map = mtd->priv; - resource_size_t start, off; - unsigned long len, vma_len; /* This is broken because it assumes the MTD device is map-based and that mtd->priv is a valid struct map_info. It should be replaced with something that uses the mtd_get_unmapped_area() operation properly. */ if (0 /*mtd->type == MTD_RAM || mtd->type == MTD_ROM*/) { - off = get_vm_offset(vma); - start = map->phys; - len = PAGE_ALIGN((start & ~PAGE_MASK) + map->size); - start &= PAGE_MASK; - vma_len = get_vm_size(vma); - - /* Overflow in off+len? */ - if (vma_len + off < off) - return -EINVAL; - /* Does it fit in the mapping? */ - if (vma_len + off > len) - return -EINVAL; - - off += start; - /* Did that overflow? */ - if (off < start) - return -EINVAL; - if (set_vm_offset(vma, off) < 0) - return -EINVAL; - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; - #ifdef pgprot_noncached - if (file->f_flags & O_DSYNC || off >= __pa(high_memory)) + if (file->f_flags & O_DSYNC || map->phys >= __pa(high_memory)) vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); #endif - if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, - vma->vm_page_prot)) - return -EAGAIN; - - return 0; + return vm_iomap_memory(vma, map->phys, map->size); } return -ENOSYS; #else -- cgit v1.2.3 From fc9bbca8f650e5f738af8806317c0a041a48ae4a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 19 Apr 2013 09:57:35 -0700 Subject: vm: convert fb_mmap to vm_iomap_memory() helper This is my example conversion of a few existing mmap users. The fb_mmap() case is a good example because it is a bit more complicated than some: fb_mmap() mmaps one of two different memory areas depending on the page offset of the mmap (but happily there is never any mixing of the two, so the helper function still works). Signed-off-by: Linus Torvalds --- drivers/video/fbmem.c | 39 ++++++++++++++------------------------- 1 file changed, 14 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 7c254084b6a0..86291dcd964a 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1373,15 +1373,12 @@ fb_mmap(struct file *file, struct vm_area_struct * vma) { struct fb_info *info = file_fb_info(file); struct fb_ops *fb; - unsigned long off; + unsigned long mmio_pgoff; unsigned long start; u32 len; if (!info) return -ENODEV; - if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) - return -EINVAL; - off = vma->vm_pgoff << PAGE_SHIFT; fb = info->fbops; if (!fb) return -ENODEV; @@ -1393,32 +1390,24 @@ fb_mmap(struct file *file, struct vm_area_struct * vma) return res; } - /* frame buffer memory */ + /* + * Ugh. This can be either the frame buffer mapping, or + * if pgoff points past it, the mmio mapping. + */ start = info->fix.smem_start; - len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.smem_len); - if (off >= len) { - /* memory mapped io */ - off -= len; - if (info->var.accel_flags) { - mutex_unlock(&info->mm_lock); - return -EINVAL; - } + len = info->fix.smem_len; + mmio_pgoff = PAGE_ALIGN((start & ~PAGE_MASK) + len) >> PAGE_SHIFT; + if (vma->vm_pgoff >= mmio_pgoff) { + vma->vm_pgoff -= mmio_pgoff; start = info->fix.mmio_start; - len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.mmio_len); + len = info->fix.mmio_len; } mutex_unlock(&info->mm_lock); - start &= PAGE_MASK; - if ((vma->vm_end - vma->vm_start + off) > len) - return -EINVAL; - off += start; - vma->vm_pgoff = off >> PAGE_SHIFT; - /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by io_remap_pfn_range()*/ + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - fb_pgprotect(file, vma, off); - if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, vma->vm_page_prot)) - return -EAGAIN; - return 0; + fb_pgprotect(file, vma, start); + + return vm_iomap_memory(vma, start, len); } static int -- cgit v1.2.3 From f86b11fbc772b5a4926855c6bc1ff3a3d99995a7 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 19 Apr 2013 10:05:39 -0700 Subject: mtdchar: remove no-longer-used vma helpers With the conversion to vm_iomap_memory(), these vma helpers are no longer used. Signed-off-by: Linus Torvalds --- drivers/mtd/mtdchar.c | 27 --------------------------- 1 file changed, 27 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 61a1b22c05e7..dc571ebc1aa0 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1123,33 +1123,6 @@ static unsigned long mtdchar_get_unmapped_area(struct file *file, } #endif -static inline unsigned long get_vm_size(struct vm_area_struct *vma) -{ - return vma->vm_end - vma->vm_start; -} - -static inline resource_size_t get_vm_offset(struct vm_area_struct *vma) -{ - return (resource_size_t) vma->vm_pgoff << PAGE_SHIFT; -} - -/* - * Set a new vm offset. - * - * Verify that the incoming offset really works as a page offset, - * and that the offset and size fit in a resource_size_t. - */ -static inline int set_vm_offset(struct vm_area_struct *vma, resource_size_t off) -{ - pgoff_t pgoff = off >> PAGE_SHIFT; - if (off != (resource_size_t) pgoff << PAGE_SHIFT) - return -EINVAL; - if (off + get_vm_size(vma) - 1 < off) - return -EINVAL; - vma->vm_pgoff = pgoff; - return 0; -} - /* * set up a mapping for shared memory segments */ -- cgit v1.2.3 From 25e40305d4f4399bc8ecf9c9b7cf43493bb40bbd Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 18 Apr 2013 07:33:34 +0000 Subject: bonding: mc addresses don't get deleted on enslave failure Add bond_mc_list_flush() after err_detach as that's the first error path after the addresses are added. The main issue is the mc addresses' refcount which only gets bumped up. v2: update log message and don't move code unnecessarily Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index dea8ce20fea4..4cecb80df854 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1901,6 +1901,11 @@ err_dest_symlinks: bond_destroy_slave_symlinks(bond_dev, slave_dev); err_detach: + if (!USES_PRIMARY(bond->params.mode)) { + netif_addr_lock_bh(bond_dev); + bond_mc_list_flush(bond_dev, slave_dev); + netif_addr_unlock_bh(bond_dev); + } write_lock_bh(&bond->lock); bond_detach_slave(bond, new_slave); write_unlock_bh(&bond->lock); -- cgit v1.2.3 From a506e7b479e1215c230e4b87fedc246cf748537f Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 18 Apr 2013 07:33:35 +0000 Subject: bonding: vlans don't get deleted on enslave failure The main problem is with vid refcount which only gets bumped up. Delete the vlans after err_detach as that's the first error path after the vlans are added. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 4cecb80df854..dd67c49070d7 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1906,6 +1906,7 @@ err_detach: bond_mc_list_flush(bond_dev, slave_dev); netif_addr_unlock_bh(bond_dev); } + bond_del_vlans_from_slave(bond, slave_dev); write_lock_bh(&bond->lock); bond_detach_slave(bond, new_slave); write_unlock_bh(&bond->lock); -- cgit v1.2.3 From 3c5913b53fefc9d9e15a2d0f93042766658d9f3f Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 18 Apr 2013 07:33:36 +0000 Subject: bonding: primary_slave & curr_active_slave are not cleaned on enslave failure On enslave failure primary_slave can point to new_slave which is to be freed, and the same applies to curr_active_slave. So check if this is the case and clean up properly after err_detach because that's the first error code path after they're set. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index dd67c49070d7..1137d5eac450 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1909,7 +1909,17 @@ err_detach: bond_del_vlans_from_slave(bond, slave_dev); write_lock_bh(&bond->lock); bond_detach_slave(bond, new_slave); + if (bond->primary_slave == new_slave) + bond->primary_slave = NULL; write_unlock_bh(&bond->lock); + if (bond->curr_active_slave == new_slave) { + read_lock(&bond->lock); + write_lock_bh(&bond->curr_slave_lock); + bond_change_active_slave(bond, NULL); + bond_select_active_slave(bond); + write_unlock_bh(&bond->curr_slave_lock); + read_unlock(&bond->lock); + } err_close: slave_dev->priv_flags &= ~IFF_BONDING; -- cgit v1.2.3 From fc7a72ac86e2956dd405b0c604fea45a2702f567 Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 18 Apr 2013 07:33:37 +0000 Subject: bonding: disable netpoll on enslave failure slave_disable_netpoll() is not called upon enslave failure which would lead to a memory leak. Call slave_disable_netpoll() after err_detach as that's the first error path after enabling netpoll on that slave. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 1137d5eac450..ae35b28a39e4 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1920,6 +1920,7 @@ err_detach: write_unlock_bh(&bond->curr_slave_lock); read_unlock(&bond->lock); } + slave_disable_netpoll(new_slave); err_close: slave_dev->priv_flags &= ~IFF_BONDING; -- cgit v1.2.3 From d632ce989c811863a1ce9b1c53dae2cf06b35c49 Mon Sep 17 00:00:00 2001 From: "nikolay@redhat.com" Date: Thu, 18 Apr 2013 07:33:38 +0000 Subject: bonding: in bond_mc_swap() bond's mc addr list is walked without lock Use netif_addr_lock_bh() to acquire the appropriate lock before walking. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index ae35b28a39e4..dbbea0eec134 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -846,8 +846,10 @@ static void bond_mc_swap(struct bonding *bond, struct slave *new_active, if (bond->dev->flags & IFF_ALLMULTI) dev_set_allmulti(old_active->dev, -1); + netif_addr_lock_bh(bond->dev); netdev_for_each_mc_addr(ha, bond->dev) dev_mc_del(old_active->dev, ha->addr); + netif_addr_unlock_bh(bond->dev); } if (new_active) { @@ -858,8 +860,10 @@ static void bond_mc_swap(struct bonding *bond, struct slave *new_active, if (bond->dev->flags & IFF_ALLMULTI) dev_set_allmulti(new_active->dev, 1); + netif_addr_lock_bh(bond->dev); netdev_for_each_mc_addr(ha, bond->dev) dev_mc_add(new_active->dev, ha->addr); + netif_addr_unlock_bh(bond->dev); } } -- cgit v1.2.3 From 6ff509af3869ccac69dcf8905fc75b9a76951594 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Thu, 18 Apr 2013 12:57:09 +0000 Subject: net: qmi_wwan: fixup missing ethernet header (firmware bug workaround) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A number of LTE devices from different vendors all suffer from the same firmware bug: Most of the packets received from the device while it is attached to a LTE network will not have an ethernet header. The devices work as expected when attached to 2G or 3G networks, sending an ethernet header with all packets. This driver is not aware of which network the modem attached to, and even if it were there are still some packet types which are always received with the header intact. All devices supported by this driver have severely limited networking capabilities: - can only transmit IPv4, IPv6 and possibly ARP - can only support a single host hardware address at any time - will only do point-to-point communcation with the host Because of this, we are able to reliably identify any bogus raw IP packets by simply looking at the 4 IP version bits. All we need to do is to avoid 4 or 6 in the first digit of the mac address. This workaround ensures this, and fix up the received packets as necessary. Given the distribution of the bug, it is believed that the source is the chipset vendor. The devices which are verified to be affected are: Huawei E392u-12 (Qualcomm MDM9200) Pantech UML290 (Qualcomm MDM9600) Novatel USB551L (Qualcomm MDM9600) Novatel E362 (Qualcomm MDM9600) It is believed that the bug depend on firmware revision, which means that possibly all devices based on the above mentioned chipset may be affected if we consider all available firmware revisions. The information about affected devices and versions is likely incomplete. As the additional overhead for packets not needing this fixup is very small, it is considered acceptable to apply the workaround to all devices handled by this driver. Reported-by: Dan Williams Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 968d5d50751d..d8a50c781af0 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -52,6 +53,82 @@ struct qmi_wwan_state { struct usb_interface *data; }; +/* Make up an ethernet header if the packet doesn't have one. + * + * A firmware bug common among several devices cause them to send raw + * IP packets under some circumstances. There is no way for the + * driver/host to know when this will happen. And even when the bug + * hits, some packets will still arrive with an intact header. + * + * The supported devices are only capably of sending IPv4, IPv6 and + * ARP packets on a point-to-point link. Any packet with an ethernet + * header will have either our address or a broadcast/multicast + * address as destination. ARP packets will always have a header. + * + * This means that this function will reliably add the appropriate + * header iff necessary, provided our hardware address does not start + * with 4 or 6. + */ +static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +{ + __be16 proto; + + /* usbnet rx_complete guarantees that skb->len is at least + * hard_header_len, so we can inspect the dest address without + * checking skb->len + */ + switch (skb->data[0] & 0xf0) { + case 0x40: + proto = htons(ETH_P_IP); + break; + case 0x60: + proto = htons(ETH_P_IPV6); + break; + default: + /* pass along other packets without modifications */ + return 1; + } + if (skb_headroom(skb) < ETH_HLEN) + return 0; + skb_push(skb, ETH_HLEN); + skb_reset_mac_header(skb); + eth_hdr(skb)->h_proto = proto; + memset(eth_hdr(skb)->h_source, 0, ETH_ALEN); + memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN); + return 1; +} + +/* very simplistic detection of IPv4 or IPv6 headers */ +static bool possibly_iphdr(const char *data) +{ + return (data[0] & 0xd0) == 0x40; +} + +/* disallow addresses which may be confused with IP headers */ +static int qmi_wwan_mac_addr(struct net_device *dev, void *p) +{ + int ret; + struct sockaddr *addr = p; + + ret = eth_prepare_mac_addr_change(dev, p); + if (ret < 0) + return ret; + if (possibly_iphdr(addr->sa_data)) + return -EADDRNOTAVAIL; + eth_commit_mac_addr_change(dev, p); + return 0; +} + +static const struct net_device_ops qmi_wwan_netdev_ops = { + .ndo_open = usbnet_open, + .ndo_stop = usbnet_stop, + .ndo_start_xmit = usbnet_start_xmit, + .ndo_tx_timeout = usbnet_tx_timeout, + .ndo_change_mtu = usbnet_change_mtu, + .ndo_set_mac_address = qmi_wwan_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + /* using a counter to merge subdriver requests with our own into a combined state */ static int qmi_wwan_manage_power(struct usbnet *dev, int on) { @@ -229,6 +306,12 @@ next_desc: usb_driver_release_interface(driver, info->data); } + /* make MAC addr easily distinguishable from an IP header */ + if (possibly_iphdr(dev->net->dev_addr)) { + dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */ + dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */ + } + dev->net->netdev_ops = &qmi_wwan_netdev_ops; err: return status; } @@ -307,6 +390,7 @@ static const struct driver_info qmi_wwan_info = { .bind = qmi_wwan_bind, .unbind = qmi_wwan_unbind, .manage_power = qmi_wwan_manage_power, + .rx_fixup = qmi_wwan_rx_fixup, }; #define HUAWEI_VENDOR_ID 0x12D1 -- cgit v1.2.3 From 6483bdc9d76fb98174797516a19d289eb837909e Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Thu, 18 Apr 2013 12:57:10 +0000 Subject: net: qmi_wwan: fixup destination address (firmware bug workaround) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received packets are sometimes addressed to 00:a0:c6:00:00:00 instead of the address the device firmware should have learned from the host: 321.224126 77.16.85.204 -> 148.122.171.134 ICMP 98 Echo (ping) request id=0x4025, seq=64/16384, ttl=64 0000 82 c0 82 c9 f1 67 82 c0 82 c9 f1 67 08 00 45 00 .....g.....g..E. 0010 00 54 00 00 40 00 40 01 57 cc 4d 10 55 cc 94 7a .T..@.@.W.M.U..z 0020 ab 86 08 00 62 fc 40 25 00 40 b2 bc 6e 51 00 00 ....b.@%.@..nQ.. 0030 00 00 6b bd 09 00 00 00 00 00 10 11 12 13 14 15 ..k............. 0040 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 .......... !"#$% 0050 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 &'()*+,-./012345 0060 36 37 67 321.240607 148.122.171.134 -> 77.16.85.204 ICMP 98 Echo (ping) reply id=0x4025, seq=64/16384, ttl=55 0000 00 a0 c6 00 00 00 02 50 f3 00 00 00 08 00 45 00 .......P......E. 0010 00 54 00 56 00 00 37 01 a0 76 94 7a ab 86 4d 10 .T.V..7..v.z..M. 0020 55 cc 00 00 6a fc 40 25 00 40 b2 bc 6e 51 00 00 U...j.@%.@..nQ.. 0030 00 00 6b bd 09 00 00 00 00 00 10 11 12 13 14 15 ..k............. 0040 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 .......... !"#$% 0050 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 34 35 &'()*+,-./012345 0060 36 37 67 The bogus address is always the same, and matches the address suggested by many devices as a default address. It is likely a hardcoded firmware default. The circumstances where this bug has been observed indicates that the trigger is related to timing or some other factor the host cannot control. Repeating the exact same configuration sequence that caused it to trigger once, will not necessarily cause it to trigger the next time. Reproducing the bug is therefore difficult. This opens up a possibility that the bug is more common than we can confirm, because affected devices often will work properly again after a reset. A procedure most users are likely to try out before reporting a bug. Unconditionally rewriting the destination address if the first digit of the received packet is 0, is considered an acceptable compromise since we already have to inspect this digit. The simplification will cause unnecessary rewrites if the real address starts with 0, but this is still better than adding additional tests for this particular case. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index d8a50c781af0..cff0bbdd9f52 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -68,6 +68,10 @@ struct qmi_wwan_state { * This means that this function will reliably add the appropriate * header iff necessary, provided our hardware address does not start * with 4 or 6. + * + * Another common firmware bug results in all packets being addressed + * to 00:a0:c6:00:00:00 despite the host address being different. + * This function will also fixup such packets. */ static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb) { @@ -84,6 +88,12 @@ static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb) case 0x60: proto = htons(ETH_P_IPV6); break; + case 0x00: + if (is_multicast_ether_addr(skb->data)) + return 1; + /* possibly bogus destination - rewrite just in case */ + skb_reset_mac_header(skb); + goto fix_dest; default: /* pass along other packets without modifications */ return 1; @@ -94,6 +104,7 @@ static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb) skb_reset_mac_header(skb); eth_hdr(skb)->h_proto = proto; memset(eth_hdr(skb)->h_source, 0, ETH_ALEN); +fix_dest: memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN); return 1; } -- cgit v1.2.3 From cc6ba5fdaabea7a7b28de3ba1e0fe54d92232fe5 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Thu, 18 Apr 2013 12:57:11 +0000 Subject: net: qmi_wwan: prevent duplicate mac address on link (firmware bug workaround) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We normally trust and use the CDC functional descriptors provided by a number of devices. But some of these will erroneously list the address reserved for the device end of the link. Attempting to use this on both the device and host side will naturally not work. Work around this bug by ignoring the functional descriptor and assign a random address instead in this case. Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index cff0bbdd9f52..2a3579f67910 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -53,6 +53,9 @@ struct qmi_wwan_state { struct usb_interface *data; }; +/* default ethernet address used by the modem */ +static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3}; + /* Make up an ethernet header if the packet doesn't have one. * * A firmware bug common among several devices cause them to send raw @@ -317,6 +320,12 @@ next_desc: usb_driver_release_interface(driver, info->data); } + /* Never use the same address on both ends of the link, even + * if the buggy firmware told us to. + */ + if (!compare_ether_addr(dev->net->dev_addr, default_modem_addr)) + eth_hw_addr_random(dev->net); + /* make MAC addr easily distinguishable from an IP header */ if (possibly_iphdr(dev->net->dev_addr)) { dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */ -- cgit v1.2.3 From ae721f3ab0d9234219edbc7858cf9c5ceda42df2 Mon Sep 17 00:00:00 2001 From: Sritej Velaga Date: Thu, 18 Apr 2013 19:49:52 +0000 Subject: qlge: Fix receive path to drop error frames o Fix the driver to drop error frames in the receive path o Update error counter which was not getting incremented Signed-off-by: Sritej Velaga Signed-off-by: Jitendra Kalsaria Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlge/qlge_main.c | 36 ++++++++++++++++++++++------ 1 file changed, 29 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c index b13ab544a7eb..8033555e53c2 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c @@ -1434,11 +1434,13 @@ map_error: } /* Categorizing receive firmware frame errors */ -static void ql_categorize_rx_err(struct ql_adapter *qdev, u8 rx_err) +static void ql_categorize_rx_err(struct ql_adapter *qdev, u8 rx_err, + struct rx_ring *rx_ring) { struct nic_stats *stats = &qdev->nic_stats; stats->rx_err_count++; + rx_ring->rx_errors++; switch (rx_err & IB_MAC_IOCB_RSP_ERR_MASK) { case IB_MAC_IOCB_RSP_ERR_CODE_ERR: @@ -1474,6 +1476,12 @@ static void ql_process_mac_rx_gro_page(struct ql_adapter *qdev, struct bq_desc *lbq_desc = ql_get_curr_lchunk(qdev, rx_ring); struct napi_struct *napi = &rx_ring->napi; + /* Frame error, so drop the packet. */ + if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { + ql_categorize_rx_err(qdev, ib_mac_rsp->flags2, rx_ring); + put_page(lbq_desc->p.pg_chunk.page); + return; + } napi->dev = qdev->ndev; skb = napi_get_frags(napi); @@ -1529,6 +1537,12 @@ static void ql_process_mac_rx_page(struct ql_adapter *qdev, addr = lbq_desc->p.pg_chunk.va; prefetch(addr); + /* Frame error, so drop the packet. */ + if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { + ql_categorize_rx_err(qdev, ib_mac_rsp->flags2, rx_ring); + goto err_out; + } + /* The max framesize filter on this chip is set higher than * MTU since FCoE uses 2k frames. */ @@ -1614,6 +1628,13 @@ static void ql_process_mac_rx_skb(struct ql_adapter *qdev, memcpy(skb_put(new_skb, length), skb->data, length); skb = new_skb; + /* Frame error, so drop the packet. */ + if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { + ql_categorize_rx_err(qdev, ib_mac_rsp->flags2, rx_ring); + dev_kfree_skb_any(skb); + return; + } + /* loopback self test for ethtool */ if (test_bit(QL_SELFTEST, &qdev->flags)) { ql_check_lb_frame(qdev, skb); @@ -1919,6 +1940,13 @@ static void ql_process_mac_split_rx_intr(struct ql_adapter *qdev, return; } + /* Frame error, so drop the packet. */ + if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { + ql_categorize_rx_err(qdev, ib_mac_rsp->flags2, rx_ring); + dev_kfree_skb_any(skb); + return; + } + /* The max framesize filter on this chip is set higher than * MTU since FCoE uses 2k frames. */ @@ -2000,12 +2028,6 @@ static unsigned long ql_process_mac_rx_intr(struct ql_adapter *qdev, QL_DUMP_IB_MAC_RSP(ib_mac_rsp); - /* Frame error, so drop the packet. */ - if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) { - ql_categorize_rx_err(qdev, ib_mac_rsp->flags2); - return (unsigned long)length; - } - if (ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HV) { /* The data and headers are split into * separate buffers. -- cgit v1.2.3 From c5e991af93e37f1b5e166f0b8a9bb99dd29e8a24 Mon Sep 17 00:00:00 2001 From: Jitendra Kalsaria Date: Thu, 18 Apr 2013 19:49:53 +0000 Subject: qlge: Fix ethtool autoneg advertising. Autoneg is supported on specific port types only. Fix the driver to advertise autoneg based on the port type. Signed-off-by: Jitendra Kalsaria Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c b/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c index 6f316ab23257..0780e039b271 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c @@ -379,13 +379,13 @@ static int ql_get_settings(struct net_device *ndev, ecmd->supported = SUPPORTED_10000baseT_Full; ecmd->advertising = ADVERTISED_10000baseT_Full; - ecmd->autoneg = AUTONEG_ENABLE; ecmd->transceiver = XCVR_EXTERNAL; if ((qdev->link_status & STS_LINK_TYPE_MASK) == STS_LINK_TYPE_10GBASET) { ecmd->supported |= (SUPPORTED_TP | SUPPORTED_Autoneg); ecmd->advertising |= (ADVERTISED_TP | ADVERTISED_Autoneg); ecmd->port = PORT_TP; + ecmd->autoneg = AUTONEG_ENABLE; } else { ecmd->supported |= SUPPORTED_FIBRE; ecmd->advertising |= ADVERTISED_FIBRE; -- cgit v1.2.3 From e393ce57806cb208574abaec78decd5665416895 Mon Sep 17 00:00:00 2001 From: Jitendra Kalsaria Date: Thu, 18 Apr 2013 19:49:54 +0000 Subject: qlge: Update version to 1.00.00.32. Signed-off-by: Jitendra Kalsaria Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlge/qlge.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qlge/qlge.h b/drivers/net/ethernet/qlogic/qlge/qlge.h index a131d7b5d2fe..7e8d68263963 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge.h +++ b/drivers/net/ethernet/qlogic/qlge/qlge.h @@ -18,7 +18,7 @@ */ #define DRV_NAME "qlge" #define DRV_STRING "QLogic 10 Gigabit PCI-E Ethernet Driver " -#define DRV_VERSION "v1.00.00.31" +#define DRV_VERSION "v1.00.00.32" #define WQ_ADDR_ALIGN 0x3 /* 4 byte alignment */ -- cgit v1.2.3 From b261c20fe089859cc43642e7006921498327fe3d Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 19 Apr 2013 08:47:26 +0000 Subject: net: ax88796: avoid 64 bit arithmetic When building ax88796 on an ARM platform with 64-bit resource_size_t, we currently get drivers/net/ethernet/8390/ax88796.c:875: undefined reference to `__aeabi_uldivmod' because we do a division on the length of the MMIO resource. Since we know that this resource is very short, using an "unsigned long" instead of "resource_size_t" is entirely sufficient, and avoids this link-time error. Cc: Ben Dooks Cc: netdev@vger.kernel.org Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- drivers/net/ethernet/8390/ax88796.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c index cab306a9888e..e1d26433d619 100644 --- a/drivers/net/ethernet/8390/ax88796.c +++ b/drivers/net/ethernet/8390/ax88796.c @@ -828,7 +828,7 @@ static int ax_probe(struct platform_device *pdev) struct ei_device *ei_local; struct ax_device *ax; struct resource *irq, *mem, *mem2; - resource_size_t mem_size, mem2_size = 0; + unsigned long mem_size, mem2_size = 0; int ret = 0; dev = ax__alloc_ei_netdev(sizeof(struct ax_device)); -- cgit v1.2.3