| Age | Commit message (Collapse) | Author | Files | Lines |
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[ Upstream commit ad732da434a2936128769216eddaece3b1af4588 ]
This memory allocation failure can be triggered by fault injection or
high pressure testing, resulting a WARN.
Fix this by replacing WARN with pr_warn.
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220511014453.1621366-1-dzm91@hust.edu.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
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interrupts enabled
commit 8b144dedb928e4e2f433a328d58f44c3c098d63e upstream.
Syzbot reports the following WARNING:
[200~raw_local_irq_restore() called with IRQs enabled
WARNING: CPU: 1 PID: 1206 at kernel/locking/irqflag-debug.c:10
warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10
Hardware initialization for the rtl8188cu can run for as long as 350 ms,
and the routine may be called with interrupts disabled. To avoid locking
the machine for this long, the current routine saves the interrupt flags
and enables local interrupts. The problem is that it restores the flags
at the end without disabling local interrupts first.
This patch fixes commit a53268be0cb9 ("rtlwifi: rtl8192cu: Fix too long
disable of IRQs").
Reported-by: syzbot+cce1ee31614c171f5595@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Fixes: a53268be0cb9 ("rtlwifi: rtl8192cu: Fix too long disable of IRQs")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211215171105.20623-1-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 30b0e0ee9d02b97b68705c46b41444786effc40c upstream.
If alloc_workqueue() fails, properly catch this and propagate the error
to the calling functions, so that the devuce initialization will
properly error out.
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Bryan Brattlof <hello@bryanbrattlof.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-14-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 68c5634c4a7278672a3bed00eb5646884257c413 upstream.
This reverts commit 765976285a8c8db3f0eb7f033829a899d0c2786e.
Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.
Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted. It will be fixed up "correctly" in a
later kernel change.
This commit is not correct, it should not have used unlikely() and is
not propagating the error properly to the calling function, so it should
be reverted at this point in time. Also, if the check failed, the
work queue was still assumed to be allocated, so further accesses would
have continued to fail, meaning this patch does nothing to solve the
root issues at all.
Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Bryan Brattlof <hello@bryanbrattlof.com>
Fixes: 765976285a8c ("rtlwifi: fix a potential NULL pointer dereference")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-13-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 18fb0bedb5fc2fddc057dbe48b7360a6ffda34b3 ]
The signal strength of 5G is quite low, so user can't connect to an AP far
away. New parameters with new format and its parser are updated by the commit
84d26fda52e2 ("rtlwifi: Update 8821ae new phy parameters and its parser."), but
some parameters are missing. Use this commit to update to the novel parameters
that use new format.
Fixes: 84d26fda52e2 ("rtlwifi: Update 8821ae new phy parameters and its parser")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210219052607.7323-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 03128643eb5453a798db5770952c73dc64fcaf00 ]
If usb_submit_urb fails the allocated urb should be unanchored and
released.
Signed-off-by: Reto Schneider <code@reto-schneider.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200622132113.14508-3-code@reto-schneider.ch
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit beb12813bc75d4a23de43b85ad1c7cb28d27631e ]
Seven years ago we tried to fix a leak but actually introduced a double
free instead. It was an understandable mistake because the code was a
bit confusing and the free was done in the wrong place. The "skb"
pointer is freed in both _rtl_usb_tx_urb_setup() and _rtl_usb_transmit().
The free belongs _rtl_usb_transmit() instead of _rtl_usb_tx_urb_setup()
and I've cleaned the code up a bit to hopefully make it more clear.
Fixes: 36ef0b473fbf ("rtlwifi: usb: add missing freeing of skbuff")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200513093951.GD347693@mwanda
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit cb775c88da5d48a85d99d95219f637b6fad2e0e9 ]
correct usage prototype of callback in tasklet_init().
Report by https://github.com/KSPP/linux/issues/20
Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 091c6e9c083f7ebaff00b37ad13562d51464d175 upstream.
When building with Clang + -Wtautological-pointer-compare:
drivers/net/wireless/realtek/rtlwifi/regd.c:389:33: warning: comparison
of address of 'rtlpriv->regd' equal to a null pointer is always false
[-Wtautological-pointer-compare]
if (wiphy == NULL || &rtlpriv->regd == NULL)
~~~~~~~~~^~~~ ~~~~
1 warning generated.
The address of an array member is never NULL unless it is the first
struct member so remove the unnecessary check. This was addressed in
the staging version of the driver in commit f986978b32b3 ("Staging:
rtlwifi: remove unnecessary NULL check").
While we are here, fix the following checkpatch warning:
CHECK: Comparison to NULL could be written "!wiphy"
35: FILE: drivers/net/wireless/realtek/rtlwifi/regd.c:389:
+ if (wiphy == NULL)
Fixes: 0c8173385e54 ("rtl8192ce: Add new driver")
Link:https://github.com/ClangBuiltLinux/linux/issues/750
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 5174f1e41074b5186608badc2e89441d021e8c08 ]
This leak was found by testing the EDIMAX EW-7612 on Raspberry Pi 3B+ with
Linux 5.4-rc5 (multi_v7_defconfig + rtlwifi + kmemleak) and noticed a
single memory leak during probe:
unreferenced object 0xec13ee40 (size 176):
comm "kworker/u8:1", pid 36, jiffies 4294939321 (age 5580.790s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<fc1bbb3e>] __netdev_alloc_skb+0x9c/0x164
[<863dfa6e>] rtl92c_set_fw_rsvdpagepkt+0x254/0x340 [rtl8192c_common]
[<9572be0d>] rtl92cu_set_hw_reg+0xf48/0xfa4 [rtl8192cu]
[<116df4d8>] rtl_op_bss_info_changed+0x234/0x96c [rtlwifi]
[<8933575f>] ieee80211_bss_info_change_notify+0xb8/0x264 [mac80211]
[<d4061e86>] ieee80211_assoc_success+0x934/0x1798 [mac80211]
[<e55adb56>] ieee80211_rx_mgmt_assoc_resp+0x174/0x314 [mac80211]
[<5974629e>] ieee80211_sta_rx_queued_mgmt+0x3f4/0x7f0 [mac80211]
[<d91091c6>] ieee80211_iface_work+0x208/0x318 [mac80211]
[<ac5fcae4>] process_one_work+0x22c/0x564
[<f5e6d3b6>] worker_thread+0x44/0x5d8
[<82c7b073>] kthread+0x150/0x154
[<b43e1b7d>] ret_from_fork+0x14/0x2c
[<794dff30>] 0x0
It is because 8192cu doesn't implement usb_cmd_send_packet(), and this
patch just frees the skb within the function to resolve memleak problem
by now. Since 8192cu doesn't turn on fwctrl_lps that needs to download
command packet for firmware via the function, applying this patch doesn't
affect driver behavior.
Reported-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3f93616951138a598d930dcaec40f2bfd9ce43bb ]
In rtl_usb_probe if allocation for usb_data fails the allocated hw
should be released. In addition the allocated rtlpriv->usb_data should
be released on error handling path.
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 330bb7117101099c687e9c7f13d48068670b9c62 upstream.
In commit 38506ecefab9 ("rtlwifi: rtl_pci: Start modification for
new drivers"), the flag that indicates that interrupts are enabled was
never set.
In addition, there are several places when enable/disable interrupts
were commented out are restored. A sychronize_interrupts() call is
removed.
Fixes: 38506ecefab9 ("rtlwifi: rtl_pci: Start modification for new drivers")
Cc: Stable <stable@vger.kernel.org> # v3.18+
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3155db7613edea8fb943624062baf1e4f9cfbfd6 upstream.
In commit 38506ecefab9 ("rtlwifi: rtl_pci: Start modification for
new drivers"), a callback needed to check if the hardware has released
a buffer indicating that a DMA operation is completed was not added.
Fixes: 38506ecefab9 ("rtlwifi: rtl_pci: Start modification for new drivers")
Cc: Stable <stable@vger.kernel.org> # v3.18+
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0e531cc575c4e9e3dd52ad287b49d3c2dc74c810 upstream.
In commit 38506ecefab9 ("rtlwifi: rtl_pci: Start modification for
new drivers"), a callback to get the RX buffer address was added to
the PCI driver. Unfortunately, driver rtl8192de was not modified
appropriately and the code runs into a WARN_ONCE() call. The use
of an incorrect array is also fixed.
Fixes: 38506ecefab9 ("rtlwifi: rtl_pci: Start modification for new drivers")
Cc: Stable <stable@vger.kernel.org> # 3.18+
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 7d129adff3afbd3a449bc3593f2064ac546d58d3 ]
RT_TRACE shows REG_MCUFWDL value as a decimal value with a '0x'
prefix, which is somewhat misleading.
Fix it to print hexadecimal, as was intended.
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 8c55dedb795be8ec0cf488f98c03a1c2176f7fb1 upstream.
Nicolas Waisman noticed that even though noa_len is checked for
a compatible length it's still possible to overrun the buffers
of p2pinfo since there's no check on the upper bound of noa_num.
Bound noa_num against P2P_MAX_NOA_NUM.
Reported-by: Nicolas Waisman <nico@semmle.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 6c0ed66f1a5b84e2a812c7c2d6571a5621bf3396 ]
rtl_usb_probe() must do error handle rtl_deinit_core() only if
rtl_init_core() is done, otherwise goto error_out2.
| usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
| rtl_usb: reg 0xf0, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x0
| rtl8192cu: Chip version 0x10
| rtl_usb: reg 0xa, usbctrl_vendorreq TimeOut! status:0xffffffb9 value=0x0
| rtl_usb: Too few input end points found
| INFO: trying to register non-static key.
| the code is fine but needs lockdep annotation.
| turning off the locking correctness validator.
| CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3
| Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
| Google 01/01/2011
| Workqueue: usb_hub_wq hub_event
| Call Trace:
| __dump_stack lib/dump_stack.c:77 [inline]
| dump_stack+0xe8/0x16e lib/dump_stack.c:113
| assign_lock_key kernel/locking/lockdep.c:786 [inline]
| register_lock_class+0x11b8/0x1250 kernel/locking/lockdep.c:1095
| __lock_acquire+0xfb/0x37c0 kernel/locking/lockdep.c:3582
| lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211
| __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
| _raw_spin_lock_irqsave+0x44/0x60 kernel/locking/spinlock.c:152
| rtl_c2hcmd_launcher+0xd1/0x390
| drivers/net/wireless/realtek/rtlwifi/base.c:2344
| rtl_deinit_core+0x25/0x2d0 drivers/net/wireless/realtek/rtlwifi/base.c:574
| rtl_usb_probe.cold+0x861/0xa70
| drivers/net/wireless/realtek/rtlwifi/usb.c:1093
| usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
| really_probe+0x2da/0xb10 drivers/base/dd.c:509
| driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
| __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
| bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
| __device_attach+0x223/0x3a0 drivers/base/dd.c:844
| bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
| device_add+0xad2/0x16e0 drivers/base/core.c:2106
| usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
| generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
| usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
| really_probe+0x2da/0xb10 drivers/base/dd.c:509
| driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
| __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
| bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
| __device_attach+0x223/0x3a0 drivers/base/dd.c:844
| bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
| device_add+0xad2/0x16e0 drivers/base/core.c:2106
| usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
| hub_port_connect drivers/usb/core/hub.c:5089 [inline]
| hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
| port_event drivers/usb/core/hub.c:5350 [inline]
| hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432
| process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
| worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
| kthread+0x313/0x420 kernel/kthread.c:253
| ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Reported-by: syzbot+1fcc5ef45175fc774231@syzkaller.appspotmail.com
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 60209d482b97743915883d293c8b85226d230c19 ]
In case dev_alloc_skb fails, the fix safely returns to avoid
potential NULL pointer dereference.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 765976285a8c8db3f0eb7f033829a899d0c2786e ]
In case alloc_workqueue fails, the fix reports the error and
returns to avoid NULL pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 84242b82d81c54e009a2aaa74d3d9eff70babf56 upstream.
Add missing break statement in order to prevent the code from falling
through to case 0x1025, and erroneously setting rtlhal->oem_id to
RT_CID_819X_ACER when rtlefuse->eeprom_svid is equal to 0x10EC and
none of the cases in switch (rtlefuse->eeprom_smid) match.
This bug was found thanks to the ongoing efforts to enable
-Wimplicit-fallthrough.
Fixes: 238ad2ddf34b ("rtlwifi: rtl8723ae: Clean up the hardware info routine")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9a98302de19991d51e067b88750585203b2a3ab6 upstream.
Without this patch, firmware will not run properly on rtl8821ae, and it
causes bad user experience. For example, bad connection performance with
low rate, higher power consumption, and so on.
rtl8821ae uses two kinds of firmwares for normal and WoWlan cases, and
each firmware has firmware data buffer and size individually. Original
code always overwrite size of normal firmware rtlpriv->rtlhal.fwsize, and
this mismatch causes firmware checksum error, then firmware can't start.
In this situation, driver gives message "Firmware is not ready to run!".
Fixes: fe89707f0afa ("rtlwifi: rtl8821ae: Simplify loading of WOWLAN firmware")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Cc: Stable <stable@vger.kernel.org> # 4.0+
Reviewed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 12dfa2f68ab659636e092db13b5d17cf9aac82af upstream.
When connecting to AP, mac80211 asks driver to enter and leave PS quickly,
but driver deinit doesn't wait for delayed work complete when entering PS,
then driver reinit procedure and delay work are running simultaneously.
This will cause unpredictable kernel oops or crash like
rtl8723be: error H2C cmd because of Fw download fail!!!
WARNING: CPU: 3 PID: 159 at drivers/net/wireless/realtek/rtlwifi/
rtl8723be/fw.c:227 rtl8723be_fill_h2c_cmd+0x182/0x510 [rtl8723be]
CPU: 3 PID: 159 Comm: kworker/3:2 Tainted: G O 4.16.13-2-ARCH #1
Hardware name: ASUSTeK COMPUTER INC. X556UF/X556UF, BIOS X556UF.406
10/21/2016
Workqueue: rtl8723be_pci rtl_c2hcmd_wq_callback [rtlwifi]
RIP: 0010:rtl8723be_fill_h2c_cmd+0x182/0x510 [rtl8723be]
RSP: 0018:ffffa6ab01e1bd70 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffa26069071520 RCX: 0000000000000001
RDX: 0000000080000001 RSI: ffffffff8be70e9c RDI: 00000000ffffffff
RBP: 0000000000000000 R08: 0000000000000048 R09: 0000000000000348
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffffa26069071520 R14: 0000000000000000 R15: ffffa2607d205f70
FS: 0000000000000000(0000) GS:ffffa26081d80000(0000) knlGS:000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000443b39d3000 CR3: 000000037700a005 CR4: 00000000003606e0
Call Trace:
? halbtc_send_bt_mp_operation.constprop.17+0xd5/0xe0 [btcoexist]
? ex_btc8723b1ant_bt_info_notify+0x3b8/0x820 [btcoexist]
? rtl_c2hcmd_launcher+0xab/0x110 [rtlwifi]
? process_one_work+0x1d1/0x3b0
? worker_thread+0x2b/0x3d0
? process_one_work+0x3b0/0x3b0
? kthread+0x112/0x130
? kthread_create_on_node+0x60/0x60
? ret_from_fork+0x35/0x40
Code: 00 76 b4 e9 e2 fe ff ff 4c 89 ee 4c 89 e7 e8 56 22 86 ca e9 5e ...
This patch ensures all delayed works done before entering PS to satisfy
our expectation, so use cancel_delayed_work_sync() instead. An exception
is delayed work ips_nic_off_wq because running task may be itself, so add
a parameter ips_wq to deinit function to handle this case.
This issue is reported and fixed in below threads:
https://github.com/lwfinger/rtlwifi_new/issues/367
https://github.com/lwfinger/rtlwifi_new/issues/366
Tested-by: Evgeny Kapun <abacabadabacaba@gmail.com> # 8723DE
Tested-by: Shivam Kakkar <shivam543@gmail.com> # 8723BE on 4.18-rc1
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Fixes: cceb0a597320 ("rtlwifi: Add work queue for c2h cmd.")
Cc: Stable <stable@vger.kernel.org> # 4.11+
Reviewed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fb239c1209bb0f0b4830cc72507cc2f2d63fadbd upstream.
In _rtl92c_get_txpower_writeval_by_regulatory() the variable writeVal
is assigned to itself in an if ... else statement, apparently only to
document that the branch condition is handled and that a previously read
value should be returned unmodified. The self-assignment causes clang to
raise the following warning:
drivers/net/wireless/realtek/rtlwifi/rtl8192cu/rf.c:304:13:
error: explicitly assigning value of variable of type 'u32'
(aka 'unsigned int') to itself [-Werror,-Wself-assign]
writeVal = writeVal;
Delete the branch with the self-assignment.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit af8a41cccf8f469165c6debc8fe07c5fd2ca501a upstream.
Some HP laptops have only a single wifi antenna. This would not be a
problem except that they were shipped with an incorrectly encoded
EFUSE. It should have been possible to open the computer and transfer
the antenna connection to the other terminal except that such action
might void the warranty, and moving the antenna broke the Windows
driver. The fix was to add a module option that would override the
EFUSE encoding. That was done with commit c18d8f509571 ("rtlwifi:
rtl8723be: Add antenna select module parameter"). There was still a
problem with Bluetooth coexistence, which was addressed with commit
baa170229095 ("rtlwifi: btcoexist: Implement antenna selection").
There were still problems, thus there were commit 0ff78adeef11
("rtlwifi: rtl8723be: fix ant_sel code") and commit 6d6226928369
("rtlwifi: btcoexist: Fix antenna selection code"). Despite all these
attempts at fixing the problem, the code is not yet right. A proper
fix is important as there are now instances of laptops having
RTL8723DE chips with the same problem.
The module parameter ant_sel is used to control antenna number and path.
At present enum ANT_{X2,X1} is used to define the antenna number, but
this choice is not intuitive, thus change to a new enum ANT_{MAIN,AUX}
to make it more readable. This change showed examples where incorrect
values were used. It was also possible to remove a workaround in
halbtcoutsrc.c.
The experimental results with single antenna connected to specific path
are now as follows:
ant_sel ANT_MAIN(#1) ANT_AUX(#2)
0 -8 -62
1 -62 -10
2 -6 -60
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Fixes: c18d8f509571 ("rtlwifi: rtl8723be: Add antenna select module parameter")
Fixes: baa170229095 ("rtlwifi: btcoexist: Implement antenna selection")
Fixes: 0ff78adeef11 ("rtlwifi: rtl8723be: fix ant_sel code")
Fixes: 6d6226928369 ("rtlwifi: btcoexist: Fix antenna selection code")
Cc: Stable <stable@vger.kernel.org> # 4.7+
Reviewed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a44709bba70fb9badc44b6a551415b152db13182 upstream.
After mac power-on sequence, wifi will start to work so notify btcoex the
event to configure registers especially related to antenna. This will not
only help to assign antenna but also to yield better user experience.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 78dc897b7ee67205423dbbc6b56be49fb18d15b5 upstream.
In commit c713fb071edc ("rtlwifi: rtl8821ae: Fix connection lost problem
correctly") a problem in rtl8821ae that caused loss of signal was fixed.
That same problem has now been reported for rtl8723be. Accordingly,
the ASPM L1 latency has been increased from 0 to 7 to fix the instability.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Tested-by: James Cameron <quozl@laptop.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit e4779162f7377baa9fb9a044555ecaae22c3f125 ]
In rtl_rx_ampdu_apply(), when rtlpriv->cfg->ops->get_btc_status()
returns false, RT_TRACE() is called with the values of variables
reject_agg and agg_size, which have not been initialized.
Always initialize these variables in order to prevent using
uninitialized values.
This issue has been found with clang. The compiler reported:
drivers/net/wireless/realtek/rtlwifi/base.c:1665:6: error: variable
'agg_size' is used uninitialized whenever 'if' condition is false
[-Werror,-Wsometimes-uninitialized]
if (rtlpriv->cfg->ops->get_btc_status())
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/base.c:1671:31: note:
uninitialized use occurs here
reject_agg, ctrl_agg_size, agg_size);
^~~~~~~~
drivers/net/wireless/realtek/rtlwifi/base.c:1665:6: error: variable
'reject_agg' is used uninitialized whenever 'if' condition
is false [-Werror,-Wsometimes-uninitialized]
if (rtlpriv->cfg->ops->get_btc_status())
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/base.c:1671:4: note:
uninitialized use occurs here
reject_agg, ctrl_agg_size, agg_size);
^~~~~~~~~~
Fixes: 2635664e6e4a ("rtlwifi: Add rx ampdu cfg for btcoexist.")
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit b7573a0a27bfa8270dea9b145448f6884b7cacc1 ]
Reset the driver current tx read/write index to zero when inactiveps
nic out of sync with HW state. Wrong driver tx read/write index will
cause Tx fail.
Signed-off-by: Tsang-Shian Lin <thlin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit c713fb071edc0efc01a955f65a006b0e1795d2eb upstream.
There has been a coding error in rtl8821ae since it was first introduced,
namely that an 8-bit register was read using a 16-bit read in
_rtl8821ae_dbi_read(). This error was fixed with commit 40b368af4b75
("rtlwifi: Fix alignment issues"); however, this change led to
instability in the connection. To restore stability, this change
was reverted in commit b8b8b16352cd ("rtlwifi: rtl8821ae: Fix connection
lost problem").
Unfortunately, the unaligned access causes machine checks in ARM
architecture, and we were finally forced to find the actual cause of the
problem on x86 platforms. Following a suggestion from Pkshih
<pkshih@realtek.com>, it was found that increasing the ASPM L1
latency from 0 to 7 fixed the instability. This parameter was varied to
see if a smaller value would work; however, it appears that 7 is the
safest value. A new symbol is defined for this quantity, thus it can be
easily changed if necessary.
Fixes: b8b8b16352cd ("rtlwifi: rtl8821ae: Fix connection lost problem")
Cc: Stable <stable@vger.kernel.org> # 4.14+
Fix-suggested-by: Pkshih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: James Cameron <quozl@laptop.org> # x86_64 OLPC NL3
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3f2a162fab15aee243178b5308bb5d1206fc4043 upstream.
We set rtlhal->last_suspend_sec to an uninitialized stack variable,
but unfortunately gcc never warned about this, I only found it
while working on another patch. I opened a gcc bug for this.
Presumably the value of rtlhal->last_suspend_sec is not all that
important, but it does get used, so we probably want the
patch backported to stable kernels.
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82839
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 519ce2f933fa14acf69d5c8cabcc18711943d629 upstream.
In routine rtl92ee_set_fw_rsvdpagepkt(), the driver allocates an skb, but
never calls rtl_cmd_send_packet(), which will free the buffer. All other
rtlwifi drivers perform this operation correctly.
This problem has been in the driver since it was included in the kernel.
Fortunately, each firmware load only leaks 4 buffers, which likely
explains why it has not previously been detected.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In commit 40b368af4b75 ("rtlwifi: Fix alignment issues"), the read
of REG_DBI_READ was changed from 16 to 8 bits. For unknown reasonsi
this change results in reduced stability for the wireless connection.
This regression was located using bisection.
Fixes: 40b368af4b75 ("rtlwifi: Fix alignment issues")
Reported-and-tested-by: James Cameron <quozl@laptop.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> # 4.11+
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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In commit 87d8a9f35202 ("rtlwifi: btcoex: call bind to setup btcoex"),
the code turns on a call to exhalbtc_bind_bt_coex_withadapter(). This
routine contains a bug that causes incorrect antenna selection for those
HP laptops with only one antenna and an incorrectly programmed EFUSE.
These boxes are the ones that need the ant_sel module parameter.
Fixes: 87d8a9f35202 ("rtlwifi: btcoex: call bind to setup btcoex")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Cc: Stable <stable@vger.kernel.org> # 4.13+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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In commit bcd37f4a0831 ("rtlwifi: btcoex: 23b 2ant: let bt transmit when
hw initialisation done"), there is an additional error when the module
parameter ant_sel is used to select the auxilary antenna. The error is
that the antenna selection is not checked when writing the antenna
selection register.
Fixes: bcd37f4a0831 ("rtlwifi: btcoex: 23b 2ant: let bt transmit when hw initialisation done")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Cc: Stable <stable@vger.kernel.org> # 4.12+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Refactor code in order to avoid identical code for different branches.
Addresses-Coverity-ID: 1248728
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Trivial fix to spelling mistake in RT_TRACE message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This is a static checker fix. "cal_num" is 10. We're declaring the
tx_dt[] and rx_td[] arrays as 3 element arrays. The static checker
complains that we do:
tx_dt[cal] = (vdf_y[1]>>20)-(vdf_y[0]>>20);
"cal" is the iterator and it is in the 0-9 range so it looks like
we could corrupt memory.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Refactor code in order to avoid identical code for different branches.
This issue was detected with the help of Coccinelle.
Addresses-Coverity-ID: 1415177
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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rate_control_ops structure is only passed as an argument to the
function ieee80211_rate_control_{register/unregister}. This argument
is of type const, so declare the structure as const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.14
The first wireless-drivers-next pull request for 4.14. I'm submitting
this unusally late in the cycle as my vacation postponed this. But
even if this is late there's not still that much new features, mostly
cleanup or fixes.
Major changes:
ath10k
* preparation for wcn3990 support
iwlwifi
* Reorganization of the code into separate directories continues
qtnfmac
* regulatory support updates
* add get_channel, dump_survey and channel_switch cfg80211 handlers
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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In _rtl_init_mac80211(), hardcoded value for hw->max_listen_interval
and hw->max_rate_tries are replaced by macro and removed the comment.
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
1899 928 0 2827 b0b realtek/rtlwifi/rtl8192ee/sw.o
File size After adding 'const':
text data bss dec hex filename
1963 864 0 2827 b0b realtek/rtlwifi/rtl8192ee/sw.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
|
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
3090 912 0 4002 fa2 realtek/rtlwifi/rtl8188ee/sw.o
File size After adding 'const':
text data bss dec hex filename
3154 848 0 4002 fa2 realtek/rtlwifi/rtl8188ee/sw.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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|
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
3032 912 0 3944 f68 realtek/rtlwifi/rtl8723be/sw.o
File size After adding 'const':
text data bss dec hex filename
3096 848 0 3944 f68 realtek/rtlwifi/rtl8723be/sw.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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|
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
2775 912 0 3687 e67 realtek/rtlwifi/rtl8723ae/sw.o
File size After adding 'const':
text data bss dec hex filename
2839 848 0 3687 e67 realtek/rtlwifi/rtl8723ae/sw.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
|
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
2491 960 0 3451 d7b realtek/rtlwifi/rtl8821ae/sw.o
File size After adding 'const':
text data bss dec hex filename
2587 864 0 3451 d7b realtek/rtlwifi/rtl8821ae/sw.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
|
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
2817 1040 0 3857 f11 realtek/rtlwifi/rtl8192se/sw.o
File size After adding 'const':
text data bss dec hex filename
3009 848 0 3857 f11 realtek/rtlwifi/rtl8192se/sw.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
|
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
2833 945 12 3790 ece realtek/rtlwifi/rtl8192de/sw.o
File size After adding 'const':
text data bss dec hex filename
2929 849 12 3790 ece realtek/rtlwifi/rtl8192de/sw.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
