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2017-04-24mmc: sdhci: Use sdhci_readl() not readl() in sdhci_dumpregs()Adrian Hunter1-5/+5
Use sdhci io wrappers consistently. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci: Add response register to register dumpAdrian Hunter1-0/+7
Add response register to register dump. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci: Improve debug print formatAdrian Hunter1-16/+12
Ensure all debug prints start with the mmc host name. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci: Reduce spin lock usage in sdhci_execute_tuningAdrian Hunter1-22/+14
Tuning execution is already synchronized with respect to other host operations by upper layers "claiming" the host, which also takes care of runtime pm. There can be no requests in progress. Retain the spin lock usage only for ensuring that sending tuning commands is synchronized with respect to the interrupt handler. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci: Do not use spin lock in set_ios pathsAdrian Hunter7-37/+1
The spin lock is not necessary in set_ios. Anything that is racing with changes to the I/O state is already broken. The mmc core already provides synchronization via "claiming" the host. So remove spin_lock and friends from sdhci_set_ios and related callbacks. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci: Remove ->select_drive_strength() callbackAdrian Hunter4-42/+0
Drivers can use the host operation directly, so remove this now unused callback. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci-pci: Use ACPI DSM to get driver strength for some Intel devicesAdrian Hunter2-66/+14
Make use of an Intel ACPI _DSM that provides eMMC driver strength. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci-pci: Don't re-tune with runtime pm for some Intel devicesAdrian Hunter1-0/+90
Make use of an Intel ACPI _DSM that indicates if re-tuning is needed after D3. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci-pci: Let devices define their own private dataAdrian Hunter2-1/+9
Let devices define their own private data to facilitate device-specific operations. The size of the private structure is specified in the sdhci_pci_fixes structure, then sdhci_pci_probe_slot() will allocate extra space for it, and sdhci_pci_priv() can be used to get a reference to it. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci: Let drivers decide whether to use mmc_retune_needed() with pmAdrian Hunter15-11/+73
Devices might save and restore tuning values so that re-tuning might not be needed after a pm transition. Let drivers decide by pushing the mmc_retune_needed() logic down to them. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: sdhci: Optimize delay loopsAdrian Hunter1-10/+9
The delay loops for reset and clock enable always take at least 1 ms because they use mdelay(1). However they can take a lot less time e.g. less than 50us. Use ktime and reduce the delay to 10 microseconds per loop. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24mmc: bcm2835: Add new driver for the sdhost controller.Eric Anholt3-0/+1480
The 2835 has two SD controllers: The Arasan sdhci controller (supported by the iproc driver) and a custom sdhost controller. This patch adds a driver for the latter. The sdhci controller supports both sdcard and sdio. The sdhost controller supports the sdcard only, but has better performance. Also note that the rpi3 has sdio wifi, so driving the sdcard with the sdhost controller allows to use the sdhci controller for wifi support. The configuration is done by devicetree via pin muxing. Both SD controller are available on the same pins (2 pin groups = pin 22 to 27 + pin 48 to 53). So it's possible to use both SD controllers at the same time with different pin groups. The code was originally written by Phil Elwell in the downstream Rasbperry Pi tree. In preparation for the upstream merge it was cleaned up and the code base was moderized by Eric Anholt, Stefan Wahren and Gerd Hoffmann. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: core: simplify return codetcharding1-29/+13
File contains multiple functions doing variations on the same thing, sdio_readb(), sdio_writeb()f, sdio_readw(), sdio_writew() etc. Although the functions have very similar logic the code is laid out in a variety of ways. This makes it overly complicated to read. There is a already a nice clean chunk of code, if we use this format for all instances then we will have cleaned up the code, reduced the line count and lessened the cognitive load required while reading. Less lines equals less bugs. Pick the most simple and clear code flow and change all functions to be the same. Signed-off-by: Tobin C. Harding <me@tobin.cc> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: core: guard dereference of optional parametertcharding1-4/+8
Various functions take as parameter an optional pointer. Pointer should be guarded with non-NULL check before dereferencing. Add non-NULL check before dereference of pointer. Signed-off-by: Tobin C. Harding <me@tobin.cc> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: fix error path when driver initialization fails before ↵Michał Zegan1-2/+3
enabling clocks This patch fixes the case where meson_mmc_probe function fails before core_clk is enabled. Originally, that would result in a try to disable the core clock, and if it was not already enabled, it would result in a kernel warning. This issue is similar to the one with div_clk. Fix it by introducing another error path used only between successfully enabling the core clock, and successfully enabling the div clock. That would ensure that core clock is disabled only if it was enabled before. Signed-off-by: Michał Zegan <webczat@webczatnet.pl> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: sdhci-st: remove unnecessary platform_set_drvdata() callJisheng Zhang1-2/+0
sdhci_pltfm_init() has already set the platform drvdata for us, remove the unnecessary platform_set_drvdata() call. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: sdhci-pxav2: remove unnecessary platform_set_drvdata() callJisheng Zhang1-2/+0
sdhci_pltfm_init() has already set the platform drvdata for us, remove the unnecessary platform_set_drvdata() call. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: sdhci-pxav3: remove unnecessary platform_set_drvdata() callJisheng Zhang1-2/+0
sdhci_pltfm_init() has already set the platform drvdata for us, remove the unnecessary platform_set_drvdata() call. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: sdhci-cadence: add HS400 enhanced strobe supportPiotr Sroka1-7/+50
Add support for HS400ES mode to Cadence SDHCI driver. Signed-off-by: Piotr Sroka <piotrs@cadence.com> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: tegra: Add Tegra186 supportThierry Reding1-0/+16
The SDHCI controller found on NVIDIA Tegra186 SoCs is very similar to the one on prior generations of Tegra and can be supported by the same driver. Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: tegra: Support module resetThierry Reding1-1/+42
The device tree binding for the SDHCI controller found on Tegra SoCs specifies that a reset control can be provided by the device tree. No code was ever added to support the module reset, which can cause the driver to try and access registers from a module that's in reset. On most Tegra SoC generations doing so would cause a hang. Note that it's unlikely to see this happen because on most platforms these resets will have been deasserted by the bootloader. However the portability can be improved by making sure the driver deasserts the reset before accessing any registers. Since resets are synchronous on Tegra SoCs, the platform driver needs to implement a custom ->remove() callback now to make sure the clock is disabled after the reset is asserted. Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: remove mmc host on device removalMichał Zegan1-0/+2
The mmc host was added in meson_mmc_probe, but never removed in meson_mmc_remove. Fix that by removing the host before deallocating other resources. Signed-off-by: Michał Zegan <webczat@webczatnet.pl> Tested-by: Michał Zegan <webczat@webczatnet.pl> Acked-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: host: tmio: fill in response from auto cmd12Wolfram Sang1-0/+3
After we received the dataend interrupt, R1 response register carries the value from the automatically generated stop command. Report that info back to the MMC block layer, so we will be notified in case of e.g. ECC errors which happened during the last transfer. Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: host: tmio: don't BUG on unsupported stop commandsWolfram Sang1-4/+5
Halting the kernel on an unsupported stop command seems overkill, report the error and say what we already did (due to autocmd12) instead. Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: host: tmio: fix minor typos in commentsWolfram Sang1-3/+3
Making sure we match the actual register names. Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: host: tmio: use defines for CTL_STOP_INTERNAL_ACTION valuesWolfram Sang2-3/+7
Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: tmio: ensure end of DMA and SD access are in syncWolfram Sang3-27/+37
The current code assumes that DMA is finished before SD access end is flagged. Thus, it schedules the 'dma_complete' tasklet in the SD card interrupt routine when DATAEND is set. The assumption is not safe, though. Even by mounting an SD card, it can be seen that sometimes DMA complete is first, sometimes DATAEND. It seems they are usually close enough timewise to not cause problems. However, a customer reported that with CMD53 sometimes things really break apart. As a result, the BSP has a patch which introduces flags for both events and makes sure both flags are set before scheduling the tasklet. The customer accepted the patch, yet it doesn't seem a proper upstream solution to me. This patch refactors the code to replace the tasklet with already existing and more lightweight mechanisms. First of all, we set the callback in a DMA descriptor to automatically get notified when DMA is done. In the callback, we then use a completion to make sure the SD access has already ended. Then, we proceed as before. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: sdhci-pxav2: add error handling of clk_prepare_enable()Alexey Khoroshilov1-1/+6
There is no check if clk_prepare_enable() succeed in sdhci_pxav2_probe(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: replace magic timeout numbers with constantsHeiner Kallweit1-2/+4
Replace timeout magic numbers with proper constants. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: remove member mrq from struct meson_hostHeiner Kallweit1-21/+3
Struct mmc_command includes a reference to the related mmc_request. Therefore we don't have to store mrq separately in struct meson_host. And we can remove some now unneeded WARN_ON's. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: improve initial configurationHeiner Kallweit1-12/+17
Config values which are not changed during runtime we can set in the probe function already. The block size setting is overwritten later in meson_mmc_start_cmd anyway if needed, so it doesn't harm if we remove this setting in meson_mmc_set_ios. In addition write config register only if configuration changed. Don't change the location of clock initialization as in an earlier version of the patch, this change causes a hang. This issue was reported and fix suggested by: Helmut Klein <hgkr.klein@gmail.com> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: remove unneeded devm_kstrdup in meson_mmc_clk_initHeiner Kallweit1-1/+1
CLK core does a deep copy of init.name, therefore it's fully ok to provide a local variable. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: fix error path in meson_mmc_clk_init / meson_mmc_probeHeiner Kallweit1-4/+5
The condition should be "if (ret)" as the disable/unprepare is supposed to be executed if the previous command fails. In addition adjust the error path in probe to properly deal with the case that cfg_div_clk can be registered successfully but enable/prepare fails. In this case we shouldn't call clk_disable_unprepare. Reported-by: Michał Zegan <webczat_200@poczta.onet.pl> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: remove member parent_mux from struct meson_hostHeiner Kallweit1-8/+6
Member mux_parent isn't used outside meson_mmc_clk_init. So remove it and replace it with a local variable in meson_mmc_clk_init. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: remove unneeded variable in meson_mmc_clk_initHeiner Kallweit1-3/+1
Because the DT requires a fixed number of mux parent clocks, variable mux_parent_count can be replaced with constant MUX_CLK_NUM_PARENTS, so remove it. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: remove unused members irq, ocr_mask from struct meson_hostHeiner Kallweit1-8/+6
Member ocr_mask is never used and member irq we can replace with a local variable in meson_mmc_probe. So let's remove both members. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: make two functions return voidHeiner Kallweit1-6/+3
The return value of meson_mmc_request_done and meson_mmc_read_resp isn't used, so make both functions return void. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: meson-gx: simplify bounce buffer setting in meson_mmc_start_cmdHeiner Kallweit1-8/+1
Core ensures that there are no commands with cmd->data being set and nothing to transfer. And we don't have to reset bit CMD_CFG_DATA_NUM because cmd_cfg was zero-initialized and this bit isn't set. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: dw_mmc: improve dw_mci_reset a bitShawn Lin1-18/+20
Too much condition iteration makes the code less readable. Slightly improve it. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: dw_mmc: move mci_send_cmd forward to avoid declarationShawn Lin1-41/+40
No functional change intended. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: dw_mmc: remove declaration of dw_mci_card_busyShawn Lin1-2/+0
No need to declar it there, remove it. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: dw_mmc: move dw_mci_get_cd forward to avoid declarationShawn Lin1-42/+41
No functional change intended. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: dw_mmc: move dw_mci_ctrl_reset forward to avoid declarationShawn Lin1-22/+20
No functional change intended. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: dw_mmc: move dw_mci_reset forward to avoid declarationShawn Lin1-66/+65
No functional change intended. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: dw_mmc: improve the timeout polling codeShawn Lin1-53/+39
Just use the readl_poll_timeout{_atomic} to avold open coding them. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24Merge tag 'upstream-4.11-rc7' of git://git.infradead.org/linux-ubifsLinus Torvalds1-4/+4
Pull UBI/UBIFS fixes from Richard Weinberger: "This contains fixes for issues in both UBI and UBIFS: - more O_TMPFILE fallout - RENAME_WHITEOUT regression due to a mis-merge - memory leak in ubifs_mknod() - power-cut problem in UBI's update volume feature" * tag 'upstream-4.11-rc7' of git://git.infradead.org/linux-ubifs: ubifs: Fix O_TMPFILE corner case in ubifs_link() ubifs: Fix RENAME_WHITEOUT support ubifs: Fix debug messages for an invalid filename in ubifs_dump_inode ubifs: Fix debug messages for an invalid filename in ubifs_dump_node ubifs: Remove filename from debug messages in ubifs_readdir ubifs: Fix memory leak in error path in ubifs_mknod ubi/upd: Always flush after prepared for an update
2017-04-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds10-108/+101
Pull networking fixes from David Miller: 1) Don't race in IPSEC dumps, from Yuejie Shi. 2) Verify lengths properly in IPSEC reqeusts, from Herbert Xu. 3) Fix out of bounds access in ipv6 segment routing code, from David Lebrun. 4) Don't write into the header of cloned SKBs in smsc95xx driver, from James Hughes. 5) Several other drivers have this bug too, fix them. From Eric Dumazet. 6) Fix access to uninitialized data in TC action cookie code, from Wolfgang Bumiller. 7) Fix double free in IPV6 segment routing, again from David Lebrun. 8) Don't let userspace set the RTF_PCPU flag, oops. From David Ahern. 9) Fix use after free in qrtr code, from Dan Carpenter. 10) Don't double-destroy devices in ip6mr code, from Nikolay Aleksandrov. 11) Don't pass out-of-range TX queue indices into drivers, from Tushar Dave. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (30 commits) netpoll: Check for skb->queue_mapping ip6mr: fix notification device destruction bpf, doc: update bpf maintainers entry net: qrtr: potential use after free in qrtr_sendmsg() bpf: Fix values type used in test_maps net: ipv6: RTF_PCPU should not be settable from userspace gso: Validate assumption of frag_list segementation kaweth: use skb_cow_head() to deal with cloned skbs ch9200: use skb_cow_head() to deal with cloned skbs lan78xx: use skb_cow_head() to deal with cloned skbs sr9700: use skb_cow_head() to deal with cloned skbs cx82310_eth: use skb_cow_head() to deal with cloned skbs smsc75xx: use skb_cow_head() to deal with cloned skbs ipv6: sr: fix double free of skb after handling invalid SRH MAINTAINERS: Add "B:" field for networking. net sched actions: allocate act cookie early qed: Fix issue in populating the PFC config paramters. qed: Fix possible system hang in the dcbnl-getdcbx() path. qed: Fix sending an invalid PFC error mask to MFW. qed: Fix possible error in populating max_tc field. ...
2017-04-21kaweth: use skb_cow_head() to deal with cloned skbsEric Dumazet1-12/+6
We can use skb_cow_head() to properly deal with clones, especially the ones coming from TCP stack that allow their head being modified. This avoids a copy. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: James Hughes <james.hughes@raspberrypi.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21ch9200: use skb_cow_head() to deal with cloned skbsEric Dumazet1-7/+2
We need to ensure there is enough headroom to push extra header, but we also need to check if we are allowed to change headers. skb_cow_head() is the proper helper to deal with this. Fixes: 4a476bd6d1d9 ("usbnet: New driver for QinHeng CH9200 devices") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: James Hughes <james.hughes@raspberrypi.org> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21lan78xx: use skb_cow_head() to deal with cloned skbsEric Dumazet1-7/+2
We need to ensure there is enough headroom to push extra header, but we also need to check if we are allowed to change headers. skb_cow_head() is the proper helper to deal with this. Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: James Hughes <james.hughes@raspberrypi.org> Cc: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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