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2020-03-26staging: rtl8723bs: core: Correct typos in commentsR Veera Kumar
Correct typos in comments. Misspellings found using checkpatch.pl. Signed-off-by: R Veera Kumar <vkor@vkten.in> Link: https://lore.kernel.org/r/20200326123540.12401-1-vkor@vkten.in Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26staging: rtl8723bs: hal: Remove unnecessary cast on void pointerSimran Singhal
Assignment to a typed pointer is sufficient in C. No cast is needed. The following Coccinelle script was used to detect this: @r@ expression x; void* e; type T; identifier f; @@ ( *((T *)e) | ((T *)x)[...] | ((T*)x)->f | - (T*) e ) Signed-off-by: Simran Singhal <singhalsimran0@gmail.com> Link: https://lore.kernel.org/r/20200326113210.GA29951@simran-Inspiron-5558 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26staging: rtl8188eu: cleanup long line in odm.cMichael Straube
Cleanup line over 80 characters by removing unnecessary test 'pDM_Odm->RSSI_Min <= 25'. The above test 'pDM_Odm->RSSI_Min > 25' already guarantees that it is <= 25. Signed-off-by: Michael Straube <straube.linux@gmail.com> Link: https://lore.kernel.org/r/20200326084348.15072-1-straube.linux@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26tty: serial: make SERIAL_SPRD depend on COMMON_CLKChunyan Zhang
kbuild-test reported an error: config: mips-randconfig-a001-20200321 ... >> drivers/tty/serial/sprd_serial.c:1175: undefined reference to `clk_set_parent' Because some mips Kconfig selects HAVE_CLK but not COMMON_CLK and no clk_set_parent implemented, so the error was exposed. So adding dependence on COMMON_CLK can fix this issue. Fixes: 7ba87cfec71a ("tty: serial: make SERIAL_SPRD not depend on ARCH_SPRD") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com> Link: https://lore.kernel.org/r/20200325081427.20312-1-zhang.lyra@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26tty: serial: fsl_lpuart: fix return value checkingMichael Walle
The return value of lpuart_dma_tx_request() is an negative errno on failure and zero on success. Fixes: 159381df1442f ("tty: serial: fsl_lpuart: fix DMA operation when using IOMMU") Reported-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Fugang Duan <fugang.duan@nxp.com> Link: https://lore.kernel.org/r/20200325090658.25967-2-michael@walle.cc Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26tty: serial: fsl_lpuart: move dma_request_chan()Michael Walle
Move dma_request_chan() out of the atomic context. First this call should not be in the atomic context at all and second the dev_info_once() may cause a hang because because the console takes this spinlock, too. Fixes: 159381df1442f ("tty: serial: fsl_lpuart: fix DMA operation when using IOMMU") Reported-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Fugang Duan <fugang.duan@nxp.com> Tested-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lore.kernel.org/r/20200325090658.25967-1-michael@walle.cc Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26drm/scheduler: fix rare NULL ptr raceYintian Tao
There is one one corner case at dma_fence_signal_locked which will raise the NULL pointer problem just like below. ->dma_fence_signal ->dma_fence_signal_locked ->test_and_set_bit here trigger dma_fence_release happen due to the zero of fence refcount. ->dma_fence_put ->dma_fence_release ->drm_sched_fence_release_scheduled ->call_rcu here make the union fled “cb_list” at finished fence to NULL because struct rcu_head contains two pointer which is same as struct list_head cb_list Therefore, to hold the reference of finished fence at drm_sched_process_job to prevent the null pointer during finished fence dma_fence_signal [ 732.912867] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 732.914815] #PF: supervisor write access in kernel mode [ 732.915731] #PF: error_code(0x0002) - not-present page [ 732.916621] PGD 0 P4D 0 [ 732.917072] Oops: 0002 [#1] SMP PTI [ 732.917682] CPU: 7 PID: 0 Comm: swapper/7 Tainted: G OE 5.4.0-rc7 #1 [ 732.918980] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014 [ 732.920906] RIP: 0010:dma_fence_signal_locked+0x3e/0x100 [ 732.938569] Call Trace: [ 732.939003] <IRQ> [ 732.939364] dma_fence_signal+0x29/0x50 [ 732.940036] drm_sched_fence_finished+0x12/0x20 [gpu_sched] [ 732.940996] drm_sched_process_job+0x34/0xa0 [gpu_sched] [ 732.941910] dma_fence_signal_locked+0x85/0x100 [ 732.942692] dma_fence_signal+0x29/0x50 [ 732.943457] amdgpu_fence_process+0x99/0x120 [amdgpu] [ 732.944393] sdma_v4_0_process_trap_irq+0x81/0xa0 [amdgpu] v2: hold the finished fence at drm_sched_process_job instead of amdgpu_fence_process v3: resume the blank line Signed-off-by: Yintian Tao <yttao@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-26usb: cdns3: make signed 1 bit bitfields unsignedColin Ian King
The signed 1 bit bitfields should be unsigned, so make them unsigned. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20200325125041.94769-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26usb: gadget: fsl: remove unused variable 'driver_desc'YueHaibing
drivers/usb/gadget/udc/fsl_udc_core.c:56:19: warning: 'driver_desc' defined but not used [-Wunused-const-variable=] It is never used, so remove it. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reviewed-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20200326071419.19240-1-yuehaibing@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26usb: gadget: f_fs: Fix use after free issue as part of queue failureSriharsha Allenki
In AIO case, the request is freed up if ep_queue fails. However, io_data->req still has the reference to this freed request. In the case of this failure if there is aio_cancel call on this io_data it will lead to an invalid dequeue operation and a potential use after free issue. Fix this by setting the io_data->req to NULL when the request is freed as part of queue failure. Fixes: 2e4c7553cd6f ("usb: gadget: f_fs: add aio support") Signed-off-by: Sriharsha Allenki <sallenki@codeaurora.org> CC: stable <stable@vger.kernel.org> Reviewed-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20200326115620.12571-1-sallenki@codeaurora.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26usb: typec: Correct the documentation for typec_cable_put()Azhar Shaikh
typec_cable_put() function had typec_cable_get in it's documentation. Change it to reflect the correct name. Signed-off-by: Azhar Shaikh <azhar.shaikh@intel.com> Link: https://lore.kernel.org/r/20200326134633.26780-1-azhar.shaikh@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26mmc: mmci_sdmmc: Fix clear busyd0end irq flagLudovic Barre
The busyd0 line transition can be very fast. The busy request may be completed by busy_d0end, without waiting for the busy_d0 steps. Therefore, clear the busyd0end irq flag, even if no busy_status. Fixes: 0e68de6aa7b1 ("mmc: mmci: sdmmc: add busy_complete callback") Cc: stable@vger.kernel.org Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Link: https://lore.kernel.org/r/20200325143409.13005-2-ludovic.barre@st.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-03-26mmc: core: Re-work the code for eMMC sanitizeUlf Hansson
The error path for sanitize operations that completes with -ETIMEDOUT, is tightly coupled with the internal request handling code of the core. More precisely, mmc_wait_for_req_done() checks for specific sanitize errors. This is not only inefficient as it affects all types of requests, but also hackish. Therefore, let's improve the behaviour by moving the error path out of the mmc core. To do that, retuning needs to be held while running the sanitize operation. Moreover, to avoid exporting unnecessary symbols to the mmc block module, let's move the code into the mmc_ops.c file. While updating the actual code, let's also take the opportunity to clean up some of the mess around it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20200316152152.15122-1-ulf.hansson@linaro.org
2020-03-26platform/x86: surface3_power: MSHW0011 rev-eng implementationBlaž Hrastnik
Patch was rebased on top of for-next. Thanks for your patience! Blaž I'm resubmitting this patch with review feedback addressed: https://patchwork.kernel.org/patch/10584079/ The patch was previously not resubmitted because it required a change that was reverted in the ACPICA. That has since been corrected: https://github.com/acpica/acpica/commit/9159c09a2a5897a43f78c95cdffc160d399722c3 We've been using this patch for a while and user reports confirm that it works: https://github.com/linux-surface/linux-surface Previous description follows. >8------------------------------------------------------8< The MSHW0011 device is a chip that replaces the battery firmware by using ACPI operation regions on the Surface 3. It is unclear whether or not the chip will be reused somewhere else (under Windows, the chip is called "Surface Platform Power Driver" and the driver is provided by Microsoft). The values have been obtained by reverse engineering, and are subject to errors. Looks like it works on overall pretty well. I couldn't manage to get the IRQ correctly triggered, so I am using a good old polling thread to check for changes. This is something to be fixed in a later version. Link: https://bugzilla.kernel.org/show_bug.cgi?id=106231 Signed-off-by: Blaž Hrastnik <blaz@mxxn.io> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Stephen Just <stephenjust@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-26Merge tag 'usb-serial-5.7-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for 5.7-rc1 Here are the USB-serial updates for 5.7-rc1, including: - support for a new family of Fintek devices - fix for an io-edgeport slab-out-of-bounds access - fixes for a couple of kernel-doc issues Included are also various clean ups and some new modem device ids. All but the io-edgeport fix have been in linux-next with no reported issues. * tag 'usb-serial-5.7-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback USB: serial: option: add Wistron Neweb D19Q1 USB: serial: option: add BroadMobi BM806U USB: serial: option: add support for ASKEY WWHC050 USB: serial: f81232: add control driver for F81534A USB: serial: fix tty cleanup-op kernel-doc USB: serial: clean up carrier-detect helper USB: serial: f81232: set F81534A serial port with RS232 mode USB: serial: f81232: add F81534A support USB: serial: f81232: use devm_kzalloc for port data USB: serial: f81232: add tx_empty function USB: serial: f81232: extract LSR handler USB: serial: digi_acceleport: remove redundant assignment to pointer priv USB: serial: relax unthrottle memory barrier
2020-03-26brcmfmac: add USB autosuspend feature supportWright Feng
We add enable dynamic suspend (autosuspend) support in host driver, and it can let platform cut down idle power consumption. To support autosuspend feature in host driver, kernel need to be built with CONFIG_USB_SUSPEND and autosuspend need to be turn on. And we also replace wowl feature with adding "needs_remote_wakeup", so that host still can be waken by wireless device. Signed-off-by: Wright Feng <wright.feng@cypress.com> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1585124429-97371-6-git-send-email-chi-hsien.lin@cypress.com
2020-03-26brcmfmac: increase max hanger slots from 1K to 3K in fws layerMadhan Mohan R
Will enable FMAC to push more packets to bus tx queue and help improve throughput when fws queuing is enabled. This change is required to tune the throughput for passing WMM CERT tests. Signed-off-by: Madhan Mohan R <madhanmohan.r@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1585124429-97371-5-git-send-email-chi-hsien.lin@cypress.com
2020-03-26brcmfmac: fix the incorrect return value in brcmf_inform_single_bss().Raveendran Somu
The function brcmf_inform_single_bss returns the value as success, even when the length exceeds the maximum value. The fix is to send appropriate code on this error. This issue is observed when Cypress test group reported random fmac crashes when running their tests and the path was identified from the crash logs. With this fix the random failure issue in Cypress test group was resolved. Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Raveendran Somu <raveendran.somu@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1585124429-97371-4-git-send-email-chi-hsien.lin@cypress.com
2020-03-26brcmfmac: Fix double freeing in the fmac usb data pathRaveendran Somu
When the brcmf_fws_process_skb() fails to get hanger slot for queuing the skb, it tries to free the skb. But the caller brcmf_netdev_start_xmit() of that funciton frees the packet on error return value. This causes the double freeing and which caused the kernel crash. Signed-off-by: Raveendran Somu <raveendran.somu@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1585124429-97371-3-git-send-email-chi-hsien.lin@cypress.com
2020-03-26brcmfmac: Fix driver crash on USB control transfer timeoutRaveendran Somu
When the control transfer gets timed out, the error status was returned without killing that urb, this leads to using the same urb. This issue causes the kernel crash as the same urb is sumbitted multiple times. The fix is to kill the urb for timeout transfer before returning error Signed-off-by: Raveendran Somu <raveendran.somu@cypress.com> Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1585124429-97371-2-git-send-email-chi-hsien.lin@cypress.com
2020-03-26rtl8xxxu: Feed current txrate information for mac80211Chris Chiu
The nl80211 commands such as 'iw link' can't get current txrate information from the driver. This commit fills in the tx rate information from the C2H RA report in the sta_statistics function. Signed-off-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200320063833.1058-3-chiu@endlessm.com
2020-03-26rtl8xxxu: add enumeration for channel bandwidthChris Chiu
There's a data field in H2C and C2H commands which is used to carry channel bandwidth information. Add enumeration to make it more descriptive in code. Signed-off-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200320063833.1058-2-chiu@endlessm.com
2020-03-26rtw88: add a debugfs entry to enable/disable coex mechanismYan-Hsuan Chuang
Sometimes we need to stop the coex mechanism to debug, so that we can manually control the device through various outer commands. Hence, add a new debugfs coex_enable to allow us to enable/disable the coex mechanism when driver is running. To disable coex echo 0 > /sys/kernel/debug/ieee80211/phyX/rtw88/coex_enable To enable coex echo 1 > /sys/kernel/debug/ieee80211/phyX/rtw88/coex_enable To check coex dm is enabled or not cat /sys/kernel/debug/ieee80211/phyX/rtw88/coex_enable Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200313033008.20070-3-yhchuang@realtek.com
2020-03-26rtw88: add a debugfs entry to dump coex's infoYan-Hsuan Chuang
Add a new entry "coex_info" in debugfs to dump coex's states for us to debug on coex's issues. The basic concept for co-existence (coex, usually for WiFi + BT) is to decide a strategy based on the current status of WiFi and BT. So, it means the WiFi driver requires to gather information from BT side and choose a strategy (TDMA/table/HW settings). Althrough we can easily check the current status of WiFi, e.g., from kernel log or just dump the hardware registers, it is still very difficult for us to gather so many different types of WiFi states (such as RFE config, antenna, channel/band, TRX, Power save). Also we will need BT's information that is stored in "struct rtw_coex". So it is necessary for us to have a debugfs that can dump all of the WiFi/BT information required. Note that to debug on coex related issues, we usually need a longer period of time of coex_info dump every 2 seconds (for example, 30 secs, so we should have 15 times of coex_info's dump). Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Reviewed-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200313033008.20070-2-yhchuang@realtek.com
2020-03-26USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callbackQiujun Huang
Fix slab-out-of-bounds read in the interrupt-URB completion handler. The boundary condition should be (length - 1) as we access data[position + 1]. Reported-and-tested-by: syzbot+37ba33391ad5f3935bbd@syzkaller.appspotmail.com Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2020-03-26staging: rtl8723bs: hal: Compress return logicSimran Singhal
Simplify function returns by merging assignment and return into one command line. Found with Coccinelle @@ local idexpression ret; expression e; @@ -ret = +return e; -return ret; Signed-off-by: Simran Singhal <singhalsimran0@gmail.com> Link: https://lore.kernel.org/r/20200325214312.GA1936@simran-Inspiron-5558 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26staging: rtl8723bs: rtw_cmd: Compress lines for immediate returnSimran Singhal
Compress two lines into a single line if immediate return statement is found. It also removes variable cmd_obj as it is no longer needed. It is done using script Coccinelle. And coccinelle uses following semantic patch for this compression function: @@ expression ret; identifier f; @@ -ret = +return f(...); -return ret; Signed-off-by: Simran Singhal <singhalsimran0@gmail.com> Link: https://lore.kernel.org/r/20200325212253.GA8175@simran-Inspiron-5558 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26staging: rtl8723bs: rtw_efuse: Compress lines for immediate returnSimran Singhal
Compress two lines into a single line if immediate return statement is found. It is done using script Coccinelle. And coccinelle uses following semantic patch for this compression function: @@ expression ret; identifier f; @@ -ret = +return f(...); -return ret; Signed-off-by: Simran Singhal <singhalsimran0@gmail.com> Link: https://lore.kernel.org/r/20200325205418.GA29149@simran-Inspiron-5558 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-26staging: wilc1000: remove label from examples in DT binding documentationAjay Singh
Remove labels and not relevant property from DT binding documentation examples as suggested in [1]. 1. https://patchwork.ozlabs.org/patch/1252837 Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Link: https://lore.kernel.org/r/20200325164234.14146-1-ajay.kathat@microchip.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-25net/mlx5: E-switch, Protect eswitch mode changesParav Pandit
Currently eswitch mode change is occurring from 2 different execution contexts as below. 1. sriov sysfs enable/disable 2. devlink eswitch set commands Both of them need to access eswitch related data structures in synchronized manner. Without any synchronization below race condition exist. SR-IOV enable/disable with devlink eswitch mode change: cpu-0 cpu-1 ----- ----- mlx5_device_disable_sriov() mlx5_devlink_eswitch_mode_set() mlx5_eswitch_disable() esw_offloads_stop() esw_offloads_disable() mlx5_eswitch_disable() esw_offloads_disable() Hence, they are synchronized using a new mode_lock. eswitch's state_lock is not used as it can lead to a deadlock scenario below and state_lock is only for vport and fdb exclusive access. ip link set vf <param> netlink rcv_msg() - Lock A rtnl_lock vfinfo() esw->state_lock() - Lock B devlink eswitch_set devlink_mutex esw->state_lock() - Lock B attach_netdev() register_netdev() rtnl_lock - Lock A Alternatives considered: 1. Acquiring rtnl lock before taking esw->state_lock to follow similar locking sequence as ip link flow during eswitch mode set. rtnl lock is not good idea for two reasons. (a) Holding rtnl lock for several hundred device commands is not good idea. (b) It leads to below and more similar deadlocks. devlink eswitch_set devlink_mutex rtnl_lock - Lock A esw->state_lock() - Lock B eswitch_disable() reload() ib_register_device() ib_cache_setup_one() rtnl_lock() 2. Exporting devlink lock may lead to undesired use of it in vendor driver(s) in future. 3. Unloading representors outside of the mode_lock requires serialization with other process trying to enable the eswitch. 4. Differing the representors life cycle to a different workqueue requires synchronization with func_change_handler workqueue. Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Bodong Wang <bodong@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: E-switch, Extend eswitch enable to handle num_vfs changeParav Pandit
Subsequent patch protects eswitch mode changes across sriov and devlink interfaces. It is desirable for eswitch to provide thread safe eswitch enable and disable APIs. Hence, extend eswitch enable API to optionally update num_vfs when requested. In subsequent patch, eswitch num_vfs are updated after all the eswitch users eswitch drops its reference count. Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Bodong Wang <bodong@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: Split eswitch mode check to different helper functionParav Pandit
In order to check eswitch state under a lock, prepare code to split capability check and eswitch state check into two helper functions. Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Bodong Wang <bodong@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: Simplify mlx5_unload_one() and its callersParav Pandit
mlx5_unload_one() always returns 0. Simplify callers of mlx5_unload_one() and remove the dead code. Reviewed-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: Simplify mlx5_register_device to return voidParav Pandit
mlx5_register_device() doesn't check for any error and always returns 0. Simplify mlx5_register_device() to return void and its caller, remove dead code related to it. Reviewed-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: Avoid group version scan when not necessaryEli Cohen
Group version is used when modifying a rule is allowed (FLOW_ACT_NO_APPEND is clear) to detect a case where the rule was found but while the groups where unlocked a new FTE was added. In this case, the added FTE could be one with identical match value so we need to attempt again with group lock held. Change the code so version is retrieved only when FLOW_ACT_NO_APPEND is cleared. As result, later compare can also be avoided if FLOW_ACT_NO_APPEND is cleared. Also improve comments text. Signed-off-by: Eli Cohen <eli@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: Avoid incrementing FTE versionEli Cohen
FTE version is not used anywhere in the code so avoid incrementing it. Signed-off-by: Eli Cohen <eli@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: Fix group version managementEli Cohen
When adding a rule to a flow group we need increment the version of the group. Current code fails to do that and as a result, when trying to add a rule, we will fail to discover a case where an FTE with the same match value was added while we scanned the groups of the same match criteria, thus we may try to add an FTE that was already added. Signed-off-by: Eli Cohen <eli@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: Simplify matching group searchesEli Cohen
Instead of using two different structs for searching groups with the same match, use a single struct and thus simplify the code, make it more readable and smaller size which means less code cache misses. text data bss dec hex before: 35524 2744 0 38268 957c after: 35038 2744 0 37782 9396 When testing add 70000 rules, delete all the rules, and repeat three times taking the average, we get (time in seconds): Before the change: insert 16.80, delete 11.02 After the change: insert 16.55, delete 10.95 Signed-off-by: Eli Cohen <eli@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: E-Switch, Use correct type for chain, prio and level valuesRoi Dayan
The correct type is u32. Fixes: d18296ffd9cc ("net/mlx5: E-Switch, Introduce global tables") Signed-off-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Paul Blakey <paulb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: E-Switch, free flow_group_in after creating the restore tableRoi Dayan
We allocate a temporary memory but forget to free it. Fixes: 11b717d61526 ("net/mlx5: E-Switch, Get reg_c0 value on CQE") Signed-off-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Paul Blakey <paulb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: E-Switch, Enable chains only if regs loopback is enabledPaul Blakey
Register c0 loopback is needed to fully support chains and prios. Enable chains and prio only if loopback (of reg c1 which came together with c0), is enabled. To be able to check that, move enabling of loopback before eswitch chains init. Signed-off-by: Paul Blakey <paulb@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5: E-Switch, Enable restore table only if reg_c1 is supportedPaul Blakey
Reg c0/c1 matching, rewrite of regs c0/c1, and copy header of regs c1,B is needed for the restore table to function, might not be supported by firmware, and creation of the restore table or the copy header will fail. Check reg_c1 loopback support, as firmware which supports this, should have all of the above. Fixes: 11b717d61526 ("net/mlx5: E-Switch, Get reg_c0 value on CQE") Signed-off-by: Paul Blakey <paulb@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5e: remove duplicated check chain_index in mlx5e_rep_setup_ft_cbwenxu
The function mlx5e_rep_setup_ft_cb check chain_index is zero twice. Signed-off-by: wenxu <wenxu@ucloud.cn> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25net/mlx5e: Fix actions_match_supported() returnDan Carpenter
The actions_match_supported() function returns a bool, true for success and false for failure. This error path is returning a negative which is cast to true but it should return false. Fixes: 4c3844d9e97e ("net/mlx5e: CT: Introduce connection tracking") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Overlapping header include additions in macsec.c A bug fix in 'net' overlapping with the removal of 'version' string in ena_netdev.c Overlapping test additions in selftests Makefile Overlapping PCI ID table adjustments in iwlwifi driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25clk: imx: Align imx sc clock parent msg structs to 4Leonard Crestez
The imx SC api strongly assumes that messages are composed out of 4-bytes words but some of our message structs have odd sizeofs. This produces many oopses with CONFIG_KASAN=y. Fix by marking with __aligned(4). Fixes: 666aed2d13ee ("clk: imx: scu: add set parent support") Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lkml.kernel.org/r/aad021e432b3062c142973d09b766656eec18fde.1582216144.git.leonard.crestez@nxp.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-25clk: imx: Align imx sc clock msg structs to 4Leonard Crestez
The imx SC api strongly assumes that messages are composed out of 4-bytes words but some of our message structs have odd sizeofs. This produces many oopses with CONFIG_KASAN=y. Fix by marking with __aligned(4). Fixes: fe37b4820417 ("clk: imx: add scu clock common part") Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Link: https://lkml.kernel.org/r/10e97a04980d933b2cfecb6b124bf9046b6e4f16.1582216144.git.leonard.crestez@nxp.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-25Merge branch 'nvme-5.7-rc1' of git://git.infradead.org/nvme into for-5.7/driversJens Axboe
Pull 5.7 NVMe updates from Keith. * 'nvme-5.7-rc1' of git://git.infradead.org/nvme: (42 commits) nvme: cleanup namespace identifier reporting in nvme_init_ns_head nvme: rename __nvme_find_ns_head to nvme_find_ns_head nvme: refactor nvme_identify_ns_descs error handling nvme-tcp: Add warning on state change failure at nvme_tcp_setup_ctrl nvme-rdma: Add warning on state change failure at nvme_rdma_setup_ctrl nvme: Fix controller creation races with teardown flow nvme: Make nvme_uninit_ctrl symmetric to nvme_init_ctrl nvme: Fix ctrl use-after-free during sysfs deletion nvme-pci: Re-order nvme_pci_free_ctrl nvme: Remove unused return code from nvme_delete_ctrl_sync nvme: Use nvme_state_terminal helper nvme: release ida resources nvme: Add compat_ioctl handler for NVME_IOCTL_SUBMIT_IO nvmet-tcp: optimize tcp stack TX when data digest is used nvme-fabrics: Use scnprintf() for avoiding potential buffer overflow nvme-multipath: do not reset on unknown status nvmet-rdma: allocate RW ctxs according to mdts nvmet-rdma: Implement get_mdts controller op nvmet: Add get_mdts op for controllers nvme-pci: properly print controller address ...
2020-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix deadlock in bpf_send_signal() from Yonghong Song. 2) Fix off by one in kTLS offload of mlx5, from Tariq Toukan. 3) Add missing locking in iwlwifi mvm code, from Avraham Stern. 4) Fix MSG_WAITALL handling in rxrpc, from David Howells. 5) Need to hold RTNL mutex in tcindex_partial_destroy_work(), from Cong Wang. 6) Fix producer race condition in AF_PACKET, from Willem de Bruijn. 7) cls_route removes the wrong filter during change operations, from Cong Wang. 8) Reject unrecognized request flags in ethtool netlink code, from Michal Kubecek. 9) Need to keep MAC in reset until PHY is up in bcmgenet driver, from Doug Berger. 10) Don't leak ct zone template in act_ct during replace, from Paul Blakey. 11) Fix flushing of offloaded netfilter flowtable flows, also from Paul Blakey. 12) Fix throughput drop during tx backpressure in cxgb4, from Rahul Lakkireddy. 13) Don't let a non-NULL skb->dev leave the TCP stack, from Eric Dumazet. 14) TCP_QUEUE_SEQ socket option has to update tp->copied_seq as well, also from Eric Dumazet. 15) Restrict macsec to ethernet devices, from Willem de Bruijn. 16) Fix reference leak in some ethtool *_SET handlers, from Michal Kubecek. 17) Fix accidental disabling of MSI for some r8169 chips, from Heiner Kallweit. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (138 commits) net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build net: ena: Add PCI shutdown handler to allow safe kexec selftests/net/forwarding: define libs as TEST_PROGS_EXTENDED selftests/net: add missing tests to Makefile r8169: re-enable MSI on RTL8168c net: phy: mdio-bcm-unimac: Fix clock handling cxgb4/ptp: pass the sign of offset delta in FW CMD net: dsa: tag_8021q: replace dsa_8021q_remove_header with __skb_vlan_pop net: cbs: Fix software cbs to consider packet sending time net/mlx5e: Do not recover from a non-fatal syndrome net/mlx5e: Fix ICOSQ recovery flow with Striding RQ net/mlx5e: Fix missing reset of SW metadata in Striding RQ reset net/mlx5e: Enhance ICOSQ WQE info fields net/mlx5_core: Set IB capability mask1 to fix ib_srpt connection failure selftests: netfilter: add nfqueue test case netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress netfilter: nft_fwd_netdev: validate family and chain type netfilter: nft_set_rbtree: Detect partial overlaps on insertion netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start() netfilter: nft_set_pipapo: Separate partial and complete overlap cases on insertion ...
2020-03-25Merge tag 'gpio-v5.6-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: - One core quirk by myself to fix the .irq_disable() semantics when the gpiolib core takes over this callback. - The rest is an elaborate series of four patches fixing Intel laptop ACPI wakeup quirks. * tag 'gpio-v5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 BYT + AXP288 model gpiolib: acpi: Rework honor_wakeup option into an ignore_wake option gpiolib: acpi: Correct comment for HP x2 10 honor_wakeup quirk gpiolib: Fix irq_disable() semantics
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