| Age | Commit message (Collapse) | Author |
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When building with CONFIG_PM=y and CONFIG_PM_SLEEP=n (such as ARCH=riscv
allmodconfig), the following warnings/errors occur:
drivers/gpu/drm/msm/adreno/adreno_device.c:679:12: error: 'adreno_system_resume' defined but not used [-Werror=unused-function]
679 | static int adreno_system_resume(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/msm/adreno/adreno_device.c:655:12: error: 'adreno_system_suspend' defined but not used [-Werror=unused-function]
655 | static int adreno_system_suspend(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
These functions are only used in SET_SYSTEM_SLEEP_PM_OPS(), which
evaluates to empty when CONFIG_PM_SLEEP is not set, making these
functions unused.
To resolve this, use the SYSTEM_SLEEP_PM_OPS() and RUNTIME_PM_OPS()
macros, which were introduced in commit 1a3c7bb08826 ("PM: core: Add new
*_PM_OPS macros, deprecate old ones"). They are designed to avoid these
compiler warnings while still guarding their use on
CONFIG_PM{,_SLEEP}=y.
Fixes: 7e4167c9e021 ("drm/msm/gpu: Park scheduler threads for system suspend")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20220411181249.2758344-1-nathan@kernel.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-04-08
Alexander fixes a use after free issue with aRFS for ice driver.
Mateusz reverts a commit that introduced issues related to device
resets for iavf driver.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
Revert "iavf: Fix deadlock occurrence during resetting VF interface"
ice: arfs: fix use-after-free when freeing @rx_cpu_rmap
====================
Link: https://lore.kernel.org/r/20220408163411.2415552-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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commit 4298388574da ("net: macb: restart tx after tx used bit read")
added support for restarting transmission. Restarting tx does not work
in case controller asserts TXUBR interrupt and TQBP is already at the end
of the tx queue. In that situation, restarting tx will immediately cause
assertion of another TXUBR interrupt. The driver will end up in an infinite
interrupt loop which it cannot break out of.
For cases where TQBP is at the end of the tx queue, instead
only clear TX_USED interrupt. As more data gets pushed to the queue,
transmission will resume.
This issue was observed on a Xilinx Zynq-7000 based board.
During stress test of the network interface,
driver would get stuck on interrupt loop within seconds or minutes
causing CPU to stall.
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220407161659.14532-1-tomas.melin@vaisala.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The SM6350 UFS PHY is compatible with the one from SDM845. Add a
compatible for that.
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Link: https://lore.kernel.org/r/20220321133318.99406-4-luca.weiss@fairphone.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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tusb1210_probe_charger_detect() must be undone by a corresponding
tusb1210_remove_charger_detect() in the error handling path, as already
done in the remove function.
Fixes: 48969a5623ed ("phy: ti: tusb1210: Add charger detection")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/07c4926c42243cedb3b6067a241bb486fdda01b5.1648991162.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The actions of of_find_i2c_device_by_node() in probe function should be
reversed in error paths by putting the reference to obtained device.
Fixes: bcff4cba41bc ("PHY: Exynos: Add Exynos5250 SATA PHY driver")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20220407091857.230386-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The device_node pointer is returned by of_parse_phandle() with refcount
incremented. We should use of_node_put() on it when done.
Fixes: bcff4cba41bc ("PHY: Exynos: Add Exynos5250 SATA PHY driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220407091857.230386-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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of_parse_phandle() returns node pointer with refcount incremented, use
of_node_put() on it to decrease refcount when done.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Link: https://lore.kernel.org/r/20220408095617.2495234-1-lv.ruyi@zte.com.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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There is possible circular locking dependency detected on event_mutex
(see below logs). This is due to set fail safe mode is done at
dp_panel_read_sink_caps() within event_mutex scope. To break this
possible circular locking, this patch move setting fail safe mode
out of event_mutex scope.
[ 23.958078] ======================================================
[ 23.964430] WARNING: possible circular locking dependency detected
[ 23.970777] 5.17.0-rc2-lockdep-00088-g05241de1f69e #148 Not tainted
[ 23.977219] ------------------------------------------------------
[ 23.983570] DrmThread/1574 is trying to acquire lock:
[ 23.988763] ffffff808423aab0 (&dp->event_mutex){+.+.}-{3:3}, at: msm_dp_displ ay_enable+0x58/0x164
[ 23.997895]
[ 23.997895] but task is already holding lock:
[ 24.003895] ffffff808420b280 (&kms->commit_lock[i]/1){+.+.}-{3:3}, at: lock_c rtcs+0x80/0x8c
[ 24.012495]
[ 24.012495] which lock already depends on the new lock.
[ 24.012495]
[ 24.020886]
[ 24.020886] the existing dependency chain (in reverse order) is:
[ 24.028570]
[ 24.028570] -> #5 (&kms->commit_lock[i]/1){+.+.}-{3:3}:
[ 24.035472] __mutex_lock+0xc8/0x384
[ 24.039695] mutex_lock_nested+0x54/0x74
[ 24.044272] lock_crtcs+0x80/0x8c
[ 24.048222] msm_atomic_commit_tail+0x1e8/0x3d0
[ 24.053413] commit_tail+0x7c/0xfc
[ 24.057452] drm_atomic_helper_commit+0x158/0x15c
[ 24.062826] drm_atomic_commit+0x60/0x74
[ 24.067403] drm_mode_atomic_ioctl+0x6b0/0x908
[ 24.072508] drm_ioctl_kernel+0xe8/0x168
[ 24.077086] drm_ioctl+0x320/0x370
[ 24.081123] drm_compat_ioctl+0x40/0xdc
[ 24.085602] __arm64_compat_sys_ioctl+0xe0/0x150
[ 24.090895] invoke_syscall+0x80/0x114
[ 24.095294] el0_svc_common.constprop.3+0xc4/0xf8
[ 24.100668] do_el0_svc_compat+0x2c/0x54
[ 24.105242] el0_svc_compat+0x4c/0xe4
[ 24.109548] el0t_32_sync_handler+0xc4/0xf4
[ 24.114381] el0t_32_sync+0x178
[ 24.118688]
[ 24.118688] -> #4 (&kms->commit_lock[i]){+.+.}-{3:3}:
[ 24.125408] __mutex_lock+0xc8/0x384
[ 24.129628] mutex_lock_nested+0x54/0x74
[ 24.134204] lock_crtcs+0x80/0x8c
[ 24.138155] msm_atomic_commit_tail+0x1e8/0x3d0
[ 24.143345] commit_tail+0x7c/0xfc
[ 24.147382] drm_atomic_helper_commit+0x158/0x15c
[ 24.152755] drm_atomic_commit+0x60/0x74
[ 24.157323] drm_atomic_helper_set_config+0x68/0x90
[ 24.162869] drm_mode_setcrtc+0x394/0x648
[ 24.167535] drm_ioctl_kernel+0xe8/0x168
[ 24.172102] drm_ioctl+0x320/0x370
[ 24.176135] drm_compat_ioctl+0x40/0xdc
[ 24.180621] __arm64_compat_sys_ioctl+0xe0/0x150
[ 24.185904] invoke_syscall+0x80/0x114
[ 24.190302] el0_svc_common.constprop.3+0xc4/0xf8
[ 24.195673] do_el0_svc_compat+0x2c/0x54
[ 24.200241] el0_svc_compat+0x4c/0xe4
[ 24.204544] el0t_32_sync_handler+0xc4/0xf4
[ 24.209378] el0t_32_sync+0x174/0x178
[ 24.213680] -> #3 (crtc_ww_class_mutex){+.+.}-{3:3}:
[ 24.220308] __ww_mutex_lock.constprop.20+0xe8/0x878
[ 24.225951] ww_mutex_lock+0x60/0xd0
[ 24.230166] modeset_lock+0x190/0x19c
[ 24.234467] drm_modeset_lock+0x34/0x54
[ 24.238953] drmm_mode_config_init+0x550/0x764
[ 24.244065] msm_drm_bind+0x170/0x59c
[ 24.248374] try_to_bring_up_master+0x244/0x294
[ 24.253572] __component_add+0xf4/0x14c
[ 24.258057] component_add+0x2c/0x38
[ 24.262273] dsi_dev_attach+0x2c/0x38
[ 24.266575] dsi_host_attach+0xc4/0x120
[ 24.271060] mipi_dsi_attach+0x34/0x48
[ 24.275456] devm_mipi_dsi_attach+0x28/0x68
[ 24.280298] ti_sn_bridge_probe+0x2b4/0x2dc
[ 24.285137] auxiliary_bus_probe+0x78/0x90
[ 24.289893] really_probe+0x1e4/0x3d8
[ 24.294194] __driver_probe_device+0x14c/0x164
[ 24.299298] driver_probe_device+0x54/0xf8
[ 24.304043] __device_attach_driver+0xb4/0x118
[ 24.309145] bus_for_each_drv+0xb0/0xd4
[ 24.313628] __device_attach+0xcc/0x158
[ 24.318112] device_initial_probe+0x24/0x30
[ 24.322954] bus_probe_device+0x38/0x9c
[ 24.327439] deferred_probe_work_func+0xd4/0xf0
[ 24.332628] process_one_work+0x2f0/0x498
[ 24.337289] process_scheduled_works+0x44/0x48
[ 24.342391] worker_thread+0x1e4/0x26c
[ 24.346788] kthread+0xe4/0xf4
[ 24.350470] ret_from_fork+0x10/0x20
[ 24.354683]
[ 24.354683]
[ 24.354683] -> #2 (crtc_ww_class_acquire){+.+.}-{0:0}:
[ 24.361489] drm_modeset_acquire_init+0xe4/0x138
[ 24.366777] drm_helper_probe_detect_ctx+0x44/0x114
[ 24.372327] check_connector_changed+0xbc/0x198
[ 24.377517] drm_helper_hpd_irq_event+0xcc/0x11c
[ 24.382804] dsi_hpd_worker+0x24/0x30
[ 24.387104] process_one_work+0x2f0/0x498
[ 24.391762] worker_thread+0x1d0/0x26c
[ 24.396158] kthread+0xe4/0xf4
[ 24.399840] ret_from_fork+0x10/0x20
[ 24.404053]
[ 24.404053] -> #1 (&dev->mode_config.mutex){+.+.}-{3:3}:
[ 24.411032] __mutex_lock+0xc8/0x384
[ 24.415247] mutex_lock_nested+0x54/0x74
[ 24.419819] dp_panel_read_sink_caps+0x23c/0x26c
[ 24.425108] dp_display_process_hpd_high+0x34/0xd4
[ 24.430570] dp_display_usbpd_configure_cb+0x30/0x3c
[ 24.436205] hpd_event_thread+0x2ac/0x550
[ 24.440864] kthread+0xe4/0xf4
[ 24.444544] ret_from_fork+0x10/0x20
[ 24.448757]
[ 24.448757] -> #0 (&dp->event_mutex){+.+.}-{3:3}:
[ 24.455116] __lock_acquire+0xe2c/0x10d8
[ 24.459690] lock_acquire+0x1ac/0x2d0
[ 24.463988] __mutex_lock+0xc8/0x384
[ 24.468201] mutex_lock_nested+0x54/0x74
[ 24.472773] msm_dp_display_enable+0x58/0x164
[ 24.477789] dp_bridge_enable+0x24/0x30
[ 24.482273] drm_atomic_bridge_chain_enable+0x78/0x9c
[ 24.488006] drm_atomic_helper_commit_modeset_enables+0x1bc/0x244
[ 24.494801] msm_atomic_commit_tail+0x248/0x3d0
[ 24.499992] commit_tail+0x7c/0xfc
[ 24.504031] drm_atomic_helper_commit+0x158/0x15c
[ 24.509404] drm_atomic_commit+0x60/0x74
[ 24.513976] drm_mode_atomic_ioctl+0x6b0/0x908
[ 24.519079] drm_ioctl_kernel+0xe8/0x168
[ 24.523650] drm_ioctl+0x320/0x370
[ 24.527689] drm_compat_ioctl+0x40/0xdc
[ 24.532175] __arm64_compat_sys_ioctl+0xe0/0x150
[ 24.537463] invoke_syscall+0x80/0x114
[ 24.541861] el0_svc_common.constprop.3+0xc4/0xf8
[ 24.547235] do_el0_svc_compat+0x2c/0x54
[ 24.551806] el0_svc_compat+0x4c/0xe4
[ 24.556106] el0t_32_sync_handler+0xc4/0xf4
[ 24.560948] el0t_32_sync+0x174/0x178
Changes in v2:
-- add circular lockiing trace
Fixes: d4aca422539c ("drm/msm/dp: always add fail-safe mode into connector mode list")
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/481396/
Link: https://lore.kernel.org/r/1649451894-554-1-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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The member 'msm_dsi->connector' isn't assigned until
msm_dsi_manager_connector_init() returns (see msm_dsi_modeset_init() and
how it assigns the return value). Therefore this pointer is going to be
NULL here. Let's use 'connector' which is what was intended.
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Fixes: 6d5e78406991 ("drm/msm/dsi: Move dsi panel init into modeset init path")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/478693/
Link: https://lore.kernel.org/r/20220318000731.2823718-1-swboyd@chromium.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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Even if some IOMMU has registered itself on the platform "bus", that
doesn't necessarily mean it provides translation for the device we
care about. Replace iommu_present() with a more appropriate check.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/480707/
Link: https://lore.kernel.org/r/5ab4f4574d7f3e042261da702d493ee40d003356.1649168268.git.robin.murphy@arm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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kzalloc() is a memory allocation function which can return NULL when
some internal memory errors happen. So it is better to check it to
prevent potential wrong memory access.
Besides, since mdp5_plane_reset() is void type, so we should better
set `plane-state` to NULL after releasing it.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/481055/
Link: https://lore.kernel.org/r/tencent_8E2A1C78140EE1784AB2FF4B2088CC0AB908@qq.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
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The fourth param is size, rather than range_end.
Note that we could increase the address space size if we had a way to
prevent buffers from spanning a 4G split, mostly just to avoid fw bugs
with 64b math.
Fixes: 84c31ee16f90 ("drm/msm/a6xx: Add support for per-instance pagetables")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20220407202836.1211268-1-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
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On some boards, for routing CAN signals from controller to transceiver,
muxes might need to be set. Therefore, add support for setting the mux by
reading the mux-states property from the device tree node.
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Link: https://lore.kernel.org/r/20220408111316.21189-1-a-govindraju@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Make tusb1210_chg_det_states static, fixing the following sparse warning:
drivers/phy/ti/phy-tusb1210.c:158:12: sparse: sparse:
symbol 'tusb1210_chg_det_states' was not declared. Should it be static?
Fixes: 48969a5623ed ("phy: ti: tusb1210: Add charger detection")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220411135440.558394-1-hdegoede@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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of_parse_phandle() returns NULL on errors, rather than error
pointers. Using NULL check on grp_np to fix this.
Fixes: d078cd1b4185 ("dmaengine: imx-sdma: Add imx6sx platform support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220308064952.15743-1-linmq006@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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The bug is here:
__func__, desc, &desc->tx_dma_desc.phys, ret, cookie, residue);
The list iterator 'desc' will point to a bogus position containing
HEAD if the list is empty or no element is found. To avoid dev_dbg()
prints a invalid address, use a new variable 'iter' as the list
iterator, while use the origin variable 'desc' as a dedicated
pointer to point to the found element.
Cc: stable@vger.kernel.org
Fixes: 82e2424635f4c ("dmaengine: xdmac: fix print warning on dma_addr_t variable")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Link: https://lore.kernel.org/r/20220327061154.4867-1-xiam0nd.tong@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Both of of_get_parent() and of_parse_phandle() return node pointer with
refcount incremented, use of_node_put() on it to decrease refcount
when done.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit b98ce2f4e32b ("dmaengine: imx-sdma: add uart rom script") broke
uart rx on imx5 when using sdma firmware from older Freescale 2.6.35
kernel. In this case reading addr->uartXX_2_mcu_addr was going out of
bounds of the firmware memory and corrupting the uart script addresses.
Simply adding a bounds check before accessing addr->uartXX_2_mcu_addr
does not work as the uartXX_2_mcu_addr members are now beyond the size
of the older firmware and the uart addresses would never be populated
in that case. There are other ways to fix this but overall the logic
seems clearer to me to revert the uartXX_2_mcu_ram_addr structure
entries back to uartXX_2_mcu_addr, change the newer entries to
uartXX_2_mcu_rom_addr and update the logic accordingly.
I have tested this patch on:
1. An i.MX53 system with sdma firmware from Freescale 2.6.35 kernel.
Without this patch uart rx is broken in this scenario, with the
patch uart rx is restored.
2. An i.MX6D system with no external sdma firmware. uart is okay with
or without this patch.
3. An i.MX8MM system using current sdma-imx7d.bin firmware from
linux-firmware. uart is okay with or without this patch and I
confirmed the rom version of the uart script is being used which was
the intention and reason for commit b98ce2f4e32b ("dmaengine:
imx-sdma: add uart rom script") in the first place.
Fixes: b98ce2f4e32b ("dmaengine: imx-sdma: add uart rom script")
Cc: stable@vger.kernel.org
Signed-off-by: Kevin Groeneveld <kgroeneveld@lenbrook.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20220410223118.15086-1-kgroeneveld@lenbrook.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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When using a fixed-link, the altr_tse_pcs driver crashes
due to null-pointer dereference as no phy_device is provided to
tse_pcs_fix_mac_speed function. Fix this by adding a check for
phy_dev before calling the tse_pcs_fix_mac_speed() function.
Also clean up the tse_pcs_fix_mac_speed function a bit. There is
no need to check for splitter_base and sgmii_adapter_base
because the driver will fail if these 2 variables are not
derived from the device tree.
Fixes: fb3bbdb85989 ("net: ethernet: Add TSE PCS support to dwmac-socfpga")
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When the T1 phy master/slave state is changed, at the end of config_aneg
function genphy_softreset is called. After the reset all the registers
configured during the config_init are restored to default value.
To avoid this, removed the genphy_softreset call.
v1->v2
------
Added the author in cc
Fixes: 8a1b415d70b7 ("net: phy: added ethtool master-slave configuration support")
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The sparse tool complains as follows:
drivers/bus/imx-weim.c:373:23: warning:
symbol 'weim_of_notifier' was not declared. Should it be static?
This symbol is not used outside of imx-weim.c, so marks it static.
Fixes: e6cb5408289f ("bus: imx-weim: add DT overlay support for WEIM bus")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add support for the following Telit FN980 and FN990 compositions:
0x1057: tty, adb, rmnet, tty, tty, tty, tty, tty
0x1058: tty, adb, tty, tty, tty, tty, tty
0x1075: adb, tty
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Link: https://lore.kernel.org/r/20220406141408.580669-1-dnlplm@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
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The userspace program could pass any values to the driver through
ioctl() interface. If the driver doesn't check the value of 'pixclock',
it may cause divide error.
Fix this by checking whether 'pixclock' is zero in the function
i740fb_check_var().
The following log reveals it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:444 [inline]
RIP: 0010:i740fb_set_par+0x272f/0x3bb0 drivers/video/fbdev/i740fb.c:739
Call Trace:
fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1036
do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1112
fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1191
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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sparse complains that using memset() on __iomem pointer is wrong:
incorrect type in argument 1 (different address spaces)
Use memset_io() to clear screen instead.
Tested on real i740 cards.
Signed-off-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Helge Deller <deller@gmx.de>
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The userspace program could pass any values to the driver through
ioctl() interface. If the driver doesn't check the value of 'pixclock',
it may cause divide error.
Fix this by checking whether 'pixclock' is zero in s3fb_check_var().
The following log reveals it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:s3fb_check_var+0x3f3/0x530
Call Trace:
<TASK>
fb_set_var+0x367/0xeb0
do_fb_ioctl+0x234/0x670
fb_ioctl+0xdd/0x130
do_syscall_64+0x3b/0x90
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The userspace program could pass any values to the driver through
ioctl() interface. If the driver doesn't check the value of 'pixclock',
it may cause divide error.
Fix this by checking whether 'pixclock' is zero.
The following log reveals it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:arkfb_set_par+0x10fc/0x24f0
Call Trace:
<TASK>
fb_set_var+0x604/0xeb0
do_fb_ioctl+0x234/0x670
fb_ioctl+0xdd/0x130
do_syscall_64+0x3b/0x90
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The userspace program could pass any values to the driver through
ioctl() interface. If the driver doesn't check the value of 'pixclock',
it may cause divide error.
Fix this by checking whether 'pixclock' is zero.
The following log reveals it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:tridentfb_check_var+0x853/0xe60
Call Trace:
<TASK>
fb_set_var+0x367/0xeb0
do_fb_ioctl+0x234/0x670
fb_ioctl+0xdd/0x130
do_syscall_64+0x3b/0x90
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The userspace program could pass any values to the driver through
ioctl() interface. If the driver doesn't check the value of 'pixclock',
it may cause divide error.
Fix this by checking whether 'pixclock' is zero in the function
vt8623fb_check_var().
The following log reveals it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:vt8623fb_set_par+0xecd/0x2210
Call Trace:
<TASK>
fb_set_var+0x604/0xeb0
do_fb_ioctl+0x234/0x670
fb_ioctl+0xdd/0x130
do_syscall_64+0x3b/0x90
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The userspace program could pass any values to the driver through
ioctl() interface. If the driver doesn't check the value of 'lineclock',
it may cause divide error.
Fix this by checking whether 'lineclock' is zero.
The following log reveals it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:kyrofb_set_par+0x30d/0xd80
Call Trace:
<TASK>
fb_set_var+0x604/0xeb0
do_fb_ioctl+0x234/0x670
fb_ioctl+0xdd/0x130
do_syscall_64+0x3b/0x90
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The previous check against 'var->pixclock' doesn't return -EINVAL when
it equals zero, but the driver uses it again, causing the divide error.
Fix this by returning when 'var->pixclock' is zero.
The following log reveals it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:neofb_set_par+0x190f/0x49a0
Call Trace:
<TASK>
fb_set_var+0x604/0xeb0
do_fb_ioctl+0x234/0x670
fb_ioctl+0xdd/0x130
do_syscall_64+0x3b/0x90
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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The intent of the version check in the mmap ioctl was to maintain
support for existing platforms (i.e., ADL/RPL and earlier), but drop
support on all future igpu platforms. As we've seen on the dgpu side,
the hardware teams are using a more fine-grained numbering system for IP
version numbers these days, so it's possible the version number
associated with our next igpu could be some form of "12.xx" rather than
13 or higher. Comparing against the full ver.release number will ensure
the intent of the check is maintained no matter what numbering the
hardware teams settle on.
Fixes: d3f3baa3562a ("drm/i915: Reinstate the mmap ioctl for some platforms")
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220407161839.1073443-1-matthew.d.roper@intel.com
(cherry picked from commit 8e7e5c077cd57ee9a36d58c65f07257dc49a88d5)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"This is a single serial driver fix for a build issue that showed up
due to changes that came in through the tty tree in 5.18-rc1 that were
missed previously. It resolves a build error with the mpc52xx_uart
driver.
It has been in linux-next this week with no reported problems"
* tag 'tty-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: mpc52xx_uart: make rx/tx hooks return unsigned, part II.
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fix from Greg KH:
"Here is a single staging driver fix for 5.18-rc2 that resolves an
endian issue for the r8188eu driver. It has been in linux-next all
this week with no reported problems"
* tag 'staging-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: r8188eu: Fix PPPoE tag insertion on little endian systems
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fix from Greg KH:
"A single driver fix. It resolves the build warning issue on 32bit
systems in the habannalabs driver that came in during the 5.18-rc1
merge cycle.
It has been in linux-next for all this week with no reported problems"
* tag 'char-misc-5.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
habanalabs: Fix test build failures
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of interrupt chip driver fixes:
- A fix for a long standing bug in the ARM GICv3 redistributor
polling which uses the wrong bit number to test.
- Prevent translation of bogus ACPI table entries which map device
interrupts into the IPI space on ARM GICs.
- Don't write into the pending register of ARM GICV4 before the scan
in hardware has completed.
- A set of build and correctness fixes for the Qualcomm MPM driver"
* tag 'irq-urgent-2022-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic, gic-v3: Prevent GSI to SGI translations
irqchip/gic-v3: Fix GICR_CTLR.RWP polling
irqchip/gic-v4: Wait for GICR_VPENDBASER.Dirty to clear before descheduling
irqchip/irq-qcom-mpm: fix return value check in qcom_mpm_init()
irq/qcom-mpm: Fix build error without MAILBOX
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The fwnode_get_named_child_node() function does not return error
pointers. It returns NULL. Update the check accordingly.
Fixes: 8f2b54824b28 ("drivers:iio:dac: Add AD3552R driver support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220404114244.GA19201@kili
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Fix the default value for the register that set the resistance:
it has to be 0x10 per datasheet.
Fixes: 4c18a890dff8d ("iio:proximity:sx9324: Add SX9324 support")
Cc: stable@vger.kernel.org
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20220406165011.10202-2-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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read_raw should return the un-scaled value.
Fixes: 5e06bdfb46e8b ("staging:iio:dac:ad5446: Return cached value for 'raw' attribute")
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220406105620.1171340-1-michael.hennerich@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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When the driver fails to enable the regulator 'vid', we will get the
following splat:
[ 79.955610] WARNING: CPU: 5 PID: 441 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0
[ 79.959641] RIP: 0010:_regulator_put+0x3ec/0x4e0
[ 79.967570] Call Trace:
[ 79.967773] <TASK>
[ 79.967951] regulator_put+0x1f/0x30
[ 79.968254] devres_release_group+0x319/0x3d0
[ 79.968608] i2c_device_probe+0x766/0x940
Fix this by disabling the 'vdd' regulator when failing to enable 'vid'
regulator.
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/20220409034849.3717231-2-zheyuma97@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Among all the users of the kfifo buffers, no one uses the
INDIO_BUFFER_HARDWARE mode. So let's take this as a general rule and
simplify a little bit the internals - overall the documentation - by
eliminating unused specific cases. Use the INDIO_BUFFER_SOFTWARE mode by
default with kfifo buffers, which will basically mimic what all the "non
direct" modes do.
Cc: Benson Leung <bleung@chromium.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Jyoti Bhayana <jbhayana@google.com>
Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Cc: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-13-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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This entry should, under no situation, be modified by device
drivers. Now that we have limited its read access to device drivers
really needing it and did so through a dedicated helper, we can
easily move this variable to the opaque structure in order to
prevent any further modification from non-authorized code (out of the
core, basically).
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20220207143840.707510-12-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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In order to later move this variable within the opaque structure, let's
create a helper for accessing it in read-only mode. This helper will be
exposed to device drivers and kept accessible for the few that could need
it. The write access to this variable however should be fully reserved to
the core so in a second step we will hide this variable into the opaque
structure.
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-11-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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As we are going to hide the currentmode inside the opaque structure,
this helper would soon need to call a non-inline function which would
simply drop the benefit of having the helper defined inline in a header.
One alternative is to move this helper in the core as there is no more
interest in defining it inline in a header. We will pay the minor cost
either way.
Let's do like the iio_device_id() helper which also refers to the opaque
structure and gets defined in the core.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-10-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The st_sensors_core driver hardcodes the content of the
iio_device_claim_direct_mode() and iio_device_release_direct_mode()
helpers. Let's get rid of this handcrafted implementation and use the
proper core helpers instead. Additionally, this lowers the tab level
(which is always good) and prevents the use of the ->currentmode
variable which is not supposed to be used like this anyway.
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-9-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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An odr_lock has been introduced to protect local accesses to the odr
internal cache and ensure the cached value always reflected the actual
value. Using the mlock() for this purpose is no longer needed, so let's
drop these extra mutex_lock/unlock() calls.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-8-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Right now the (framework) mlock lock is (ab)used for multiple purposes:
1- protecting concurrent accesses over the odr local cache
2- avoid changing samplig frequency whilst buffer is running
Let's start by handling situation #1 with a local lock.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-7-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The use of a lock there seems pointless. Besides preventing to read
these information from userspace while buffers are enabled (which is not
supposed to happen), it only protect read accesses over static const
values, which are never supposed to be written anyway.
Drop these lock calls.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-6-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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As there is no cleanup to do, let's return as early as possible in the
various ST sensor drivers _write_raw() callback functions.
There is no functional change.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-5-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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This is an internal variable of the core, let's use the
iio_buffer_enabled() helper which is exported for the following purpose:
telling if the current mode is a buffered mode, which is precisely what
this driver looks for.
Cc: Olivier Moysan <olivier.moysan@foss.st.com>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20220207143840.707510-4-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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