- 16 Dec, 2021 26 commits
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Ben Skeggs authored
Replaces the static list used during link training with a table built dynamically from the union of source and sink capabilities. Preparation for adding support for HBR3, LTTPR and eDP 1.4 link rates. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Karol Herbst <kherbst@redhat.com> Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/17
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Ben Skeggs authored
TPS1/2/3 require scrambling to be disabled. The IED scripts on earlier boards used to handle this, but appear not to anymore. TPS4 support will also require scrambling to remain enabled. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Karol Herbst <kherbst@redhat.com> Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/17
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Ben Skeggs authored
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Karol Herbst <kherbst@redhat.com> Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/17
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Zack Rusin authored
vmw_user_bo_lookup can fail to lookup user buffers, especially because the buffer handles come from the userspace. The return value has to be checked before the buffers are put back. This was spotted by Dan's Smatch statick checker: drivers/gpu/drm/vmwgfx/vmwgfx_bo.c:574 vmw_user_bo_synccpu_release() error: uninitialized symbol 'vmw_bo'. Signed-off-by: Zack Rusin <zackr@vmware.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 8afa13a0 ("drm/vmwgfx: Implement DRIVER_GEM") Reviewed-by: Martin Krastev <krastevm@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211215200224.3693345-1-zack@kde.org
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Zack Rusin authored
Before the driver had screen targets support we had to disable explicit bringup of its infrastructure because it was breaking screen objects support. Since the implementation of screen targets landed there hasn't been a reason to explicitly disable it and the options were never used. Remove of all that unused code. Signed-off-by: Zack Rusin <zackr@vmware.com> Fixes: d80efd5c ("drm/vmwgfx: Initial DX support") Reviewed-by: Martin Krastev <krastevm@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211215184147.3688785-3-zack@kde.org
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Zack Rusin authored
Old versions of the svga device used to export virtual vram, handling of which was optimized on top of transparent hugepages support. Only very old devices (OpenGL 2.1 support and earlier) used this code and at this point performance differences are negligible. Because the code requires very old hardware versions to run it has been largely untested and unused for a long time. Furthermore removal of the ttm hugepages support in: commit 0d979509 ("drm/ttm: remove ttm_bo_vm_insert_huge()") broke the coherency mode in vmwgfx when running with hugepages. Fixes: 0d979509 ("drm/ttm: remove ttm_bo_vm_insert_huge()") Signed-off-by: Zack Rusin <zackr@vmware.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Christian König <christian.koenig@amd.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Martin Krastev <krastevm@vmware.com> Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211215184147.3688785-2-zack@kde.org
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Zack Rusin authored
On i386 size_t is of course 32bits and using long int throws warnings, trivially fix it by using the dedicated size_t format. This is enough to fix the following warning found by the kernel test robot: drivers/gpu/drm/vmwgfx/vmwgfx_gem.c: In function 'vmw_bo_print_info': >> drivers/gpu/drm/vmwgfx/vmwgfx_gem.c:230:33: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 230 | seq_printf(m, "\t\t0x%08x: %12ld bytes %s, type = %s", | ~~~~^ | | | long int | %12d 231 | id, bo->base.base.size, placement, type); | ~~~~~~~~~~~~~~~~~~ | | Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Zack Rusin <zackr@vmware.com> Fixes: 8afa13a0 ("drm/vmwgfx: Implement DRIVER_GEM") Reviewed-by: Martin Krastev <krastevm@vmware.com> Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211215184147.3688785-1-zack@kde.org
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Paul Boddie authored
Add support for the LCD controller present on JZ4780 SoCs. This SoC uses 8-byte descriptors which extend the current 4-byte descriptors used for other Ingenic SoCs. Tested on MIPS Creator CI20 board. Signed-off-by: Paul Boddie <paul@boddie.org.uk> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://patchwork.freedesktop.org/patch/msgid/caf9e56b64b0717563e03172b30fa03736e92e15.1638470392.git.hns@goldelico.com
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H. Nikolaus Schaller authored
This changes the way the regmap is allocated to prepare for the later addition of the JZ4780 which has more registers and bits than the others. Therefore we make the regmap as big as the reg property in the device tree tells. Suggested-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://patchwork.freedesktop.org/patch/msgid/ee65e70e91268b3963f8a6581c8aa6c3b643c53e.1638470392.git.hns@goldelico.com
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Xiang wangx authored
struct of_device_id should normally be const. Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com> Reviewed-by: Jyri Sarha <jyri.sarha@iki.fi> Signed-off-by: Jyri Sarha <jyri.sarha@iki.fi> Link: https://patchwork.freedesktop.org/patch/msgid/20211216095536.58577-1-wangxiang@cdjrlc.com
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Thomas Zimmermann authored
Backmerging for v5.16-rc5. Resolves a conflict between drm-misc-next and drm-misc-fixes in the vc4 driver. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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Stephen Boyd authored
Set the maximum register to 0xff so we can dump the registers for this device in debugfs. Fixes: a095f15c ("drm/bridge: add support for sn65dsi86 bridge driver") Cc: Rob Clark <robdclark@chromium.org> Cc: Douglas Anderson <dianders@chromium.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Robert Foss <robert.foss@linaro.org> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20211215002529.382383-1-swboyd@chromium.org
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Thomas Zimmermann authored
Move I2C code into its own source file. Makes the mode-setting code a little less convoluted. v3: * fix SPDX tag to say 'SPDX-License-Identifier' Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20211206091125.29501-4-tzimmermann@suse.de
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Thomas Zimmermann authored
Release the I2C adapter as part of the DRM device cleanup. Remove ast's dedicated helper for struct drm_connector_funcs.destroy. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20211206091125.29501-3-tzimmermann@suse.de
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Thomas Zimmermann authored
I2C initialization is allowed to fail. In this case, create a connector without DDC adapter. The current code would dereference a NULL pointer. Reading the modes from the connector is supposed to work without I2C adapter. Add the respective test. v2: * init edid to NULL to avoid uninitialized read (Dan) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20211206091125.29501-2-tzimmermann@suse.de
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Dave Stevenson authored
The BT601/BT709 color encoding and limited vs full range properties were not being exposed, defaulting always to BT601 limited range. Expose the parameters and set the registers appropriately. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://lore.kernel.org/r/20211215091739.135042-4-maxime@cerno.tech
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Dave Stevenson authored
The P030 format, used with the DRM_FORMAT_MOD_BROADCOM_SAND128 modifier, is a format output by the video decoder on the BCM2711. Add native support to the KMS planes for that format. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://lore.kernel.org/r/20211215091739.135042-3-maxime@cerno.tech
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Dave Stevenson authored
Adds a format that is 3 10bit YUV 4:2:0 samples packed into a 32bit word (with 2 spare bits). Supported on Broadcom BCM2711 chips. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://lore.kernel.org/r/20211215091739.135042-2-maxime@cerno.tech
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Hector Martin authored
This is the format used by the bootloader framebuffer on Apple ARM64 platforms. Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Hector Martin <marcan@marcan.st> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211212062407.138309-4-marcan@marcan.st
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Hector Martin authored
Add XRGB8888 emulation support for devices that can only do XRGB2101010. This is chiefly useful for simpledrm on Apple devices where the bootloader-provided framebuffer is 10-bit. Signed-off-by: Hector Martin <marcan@marcan.st> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211212062407.138309-3-marcan@marcan.st
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Hector Martin authored
This code is required for both simplefb and simpledrm, so let's move it into the OF core instead of having it as an ad-hoc initcall in the drivers. Signed-off-by: Hector Martin <marcan@marcan.st> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211212062407.138309-2-marcan@marcan.st
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Marek Vasut authored
Add Team Source Display TST043015CMHX 4.3" 480x272 DPI panel support. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Sam Ravnborg <sam@ravnborg.org> To: dri-devel@lists.freedesktop.org Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211127031909.283383-3-marex@denx.de
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Marek Vasut authored
Add Team Source Display TST043015CMHX 4.3" 480x272 DPI panel compatible string. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211127031909.283383-2-marex@denx.de
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Marek Vasut authored
Add vendor prefix for Team Source Display Technology Co., Ltd. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211127031909.283383-1-marex@denx.de
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Marek Vasut authored
The OnSemi FIN3385 Parallel-to-LVDS encoder has a dedicated input line to select input pixel data sampling edge. Add DT property "pclk-sample", not the same as the one used by display timings but rather the same as used by media, and configure bus flags based on this DT property. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211017001204.299940-2-marex@denx.de
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Marek Vasut authored
The OnSemi FIN3385 Parallel-to-LVDS encoder has a dedicated input line to select input pixel data sampling edge. Add DT property "pclk-sample", not the same as the one used by display timings but rather the same as used by media, to define the pixel data sampling edge. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20211017001204.299940-1-marex@denx.de
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- 15 Dec, 2021 1 commit
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Maxime Ripard authored
Several DRM/KMS atomic commits can run in parallel if they affect different CRTC. These commits share the global HVS state, so we have some code to make sure we run commits in sequence. This synchronization code is one of the first thing that runs in vc4_atomic_commit_tail(). Another constraints we have is that we need to make sure the HVS clock gets a boost during the commit. That code relies on clk_set_min_rate and will remove the old minimum and set a new one. We also need another, temporary, minimum for the duration of the commit. The algorithm is thus to set a temporary minimum, drop the previous one, do the commit, and finally set the minimum for the current mode. However, the part that sets the temporary minimum and drops the older one runs before the commit synchronization code. Thus, under the proper conditions, we can end up mixing up the minimums and ending up with the wrong one for our current step. To avoid it, let's move the clock setup in the protected section. Fixes: d7d96c00 ("drm/vc4: hvs: Boost the core clock during modeset") Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Tested-by: Jian-Hong Pan <jhp@endlessos.org> [danvet: re-apply this from 0c980a00 ("drm/vc4: kms: Wait for the commit before increasing our clock rate") because I lost that part in my merge resolution in 99b03ca6 ("Merge v5.16-rc5 into drm-next")] Fixes: 99b03ca6 ("Merge v5.16-rc5 into drm-next") Acked-by: Maxime Ripard <maxime@cerno.tech> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://lore.kernel.org/r/20211117094527.146275-2-maxime@cerno.tech
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- 14 Dec, 2021 2 commits
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Simon Ser authored
There are a few details specific to the GETFB2 IOCTL. It's not immediately clear how user-space should check for the number of planes. Suggest using the handles field or the pitches field. The modifier array is filled with zeroes, ie. DRM_FORMAT_MOD_LINEAR. So explicitly tell user-space to not look at it unless the flag is set. Changes in v2 (Daniel): - Mention that handles should be used to compute the number of planes, and only refer to pitches as a fallback. - Reword bit about undefined modifier. Signed-off-by: Simon Ser <contact@emersion.fr> Acked-by: Daniel Vetter <daniel@ffwll.ch> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Acked-by: Daniel Stone <daniels@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211123112400.22245-1-contact@emersion.fr
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Daniel Vetter authored
Thomas Zimmermann requested a fixes backmerge, specifically also for 96c5f82e ("drm/vc4: fix error code in vc4_create_object()") Just a bunch of adjacent changes conflicts, even the big pile of them in vc4. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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- 12 Dec, 2021 11 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are some small USB fixes for 5.16-rc5. They include: - gadget driver fixes for reported issues - xhci fixes for reported problems. - config endpoint parsing fixes for where we got bitfields wrong Most of these have been in linux-next, the remaining few were not, but got lots of local testing in my systems and in some cloud testing infrastructures" * tag 'usb-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: core: config: using bit mask instead of individual bits usb: core: config: fix validation of wMaxPacketValue entries USB: gadget: zero allocate endpoint 0 buffers USB: gadget: detect too-big endpoint 0 requests xhci: avoid race between disable slot command and host runtime suspend xhci: Remove CONFIG_USB_DEFAULT_PERSIST to prevent xHCI from runtime suspending Revert "usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default"
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are a bunch of small char/misc and other driver subsystem fixes. Included in here are: - iio driver fixes for reported problems - phy driver fixes for a number of reported problems - mhi resume bugfix for broken hardware - nvmem driver fix - rtsx driver fix for irq issues - fastrpc packet parsing fix All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (33 commits) bus: mhi: core: Add support for forced PM resume iio: trigger: stm32-timer: fix MODULE_ALIAS misc: rtsx: Avoid mangling IRQ during runtime PM nvmem: eeprom: at25: fix FRAM byte_len misc: fastrpc: fix improper packet size calculation MAINTAINERS: add maintainer for Qualcomm FastRPC driver bus: mhi: pci_generic: Fix device recovery failed issue iio: adc: stm32: fix null pointer on defer_probe error phy: HiSilicon: Fix copy and paste bug in error handling dt-bindings: phy: zynqmp-psgtr: fix USB phy name phy: ti: omap-usb2: Fix the kernel-doc style phy: qualcomm: ipq806x-usb: Fix kernel-doc style iio: at91-sama5d2: Fix incorrect sign extension iio: adc: axp20x_adc: fix charging current reporting on AXP22x iio: gyro: adxrs290: fix data signedness phy: ti: tusb1210: Fix the kernel-doc warn phy: qualcomm: usb-hsic: Fix the kernel-doc warn phy: qualcomm: qmp: Add missing struct documentation phy: mvebu-cp110-utmi: Fix kernel-doc warns iio: ad7768-1: Call iio_trigger_notify_done() on error ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Thomas Gleixner: "Two fixes for clock chip drivers: - A regression fix for the Designware APB timer. A recent change to the error checking code transformed the error condition wrongly so it turned into a fail if good condition. - Fix a clang build fail of the ARM architected timer driver" * tag 'timers-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource/drivers/arm_arch_timer: Force inlining of erratum_set_next_event_generic() clocksource/drivers/dw_apb_timer_of: Fix probe failure
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fixes from Thomas Gleixner: "A set of interrupt chip driver fixes: - Fix the multi vector MSI allocation on Armada 370XP - Do interrupt acknowledgement correctly in the aspeed-scu driver - Make the IPR register offset correct in the NVIC driver - Make redistribution table flushing correct by issueing a SYNC command to ensure that the invalidation command has been executed - Plug a device tree node reference leak in the bcm7210-l2 driver - Trivial fixes in the MIPS GIC and the Apple AIC drivers" * tag 'irq-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/irq-bcm7120-l2: Add put_device() after of_find_device_by_node() irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL irqchip/apple-aic: Mark aic_init_smp() as __init irqchip: nvic: Fix offset for Interrupt Priority Offsets irqchip/mips-gic: Use bitfield helpers irqchip/aspeed-scu: Replace update_bits with write_bits. irqchip/armada-370-xp: Fix support for Multi-MSI interrupts irqchip/armada-370-xp: Fix return value of armada_370_xp_msi_alloc()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fix from Thomas Gleixner: "A single fix for the x86 scheduler topology: Using cluster topology on hybrid CPUs, e.g. Alder Lake, biases the scheduler towards the ATOM cluster as that has more total capacity. Use selection based on CPU priority instead" * tag 'sched-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched,x86: Don't use cluster topology for x86 hybrid CPUs
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git://github.com/c-sky/csky-linuxLinus Torvalds authored
Pull csky from Guo Ren: "Only one fix for csky: fix fpu config macro" * tag 'csky-for-linus-5.16-rc5' of git://github.com/c-sky/csky-linux: csky: fix typo of fpu config macro
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Pavel Hofman authored
Using standard USB_EP_MAXP_MULT_MASK instead of individual bits for extracting multiple-transactions bits from wMaxPacketSize value. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com> Link: https://lore.kernel.org/r/20211210085219.16796-2-pavel.hofman@ivitera.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pavel Hofman authored
The checks performed by commit aed9d65a ("USB: validate wMaxPacketValue entries in endpoint descriptors") require that initial value of the maxp variable contains both maximum packet size bits (10..0) and multiple-transactions bits (12..11). However, the existing code assings only the maximum packet size bits. This patch assigns all bits of wMaxPacketSize to the variable. Fixes: aed9d65a ("USB: validate wMaxPacketValue entries in endpoint descriptors") Cc: stable <stable@vger.kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com> Link: https://lore.kernel.org/r/20211210085219.16796-1-pavel.hofman@ivitera.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman authored
Under some conditions, USB gadget devices can show allocated buffer contents to a host. Fix this up by zero-allocating them so that any extra data will all just be zeros. Reported-by: Szymon Heidrich <szymon.heidrich@gmail.com> Tested-by: Szymon Heidrich <szymon.heidrich@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman authored
Sometimes USB hosts can ask for buffers that are too large from endpoint 0, which should not be allowed. If this happens for OUT requests, stall the endpoint, but for IN requests, trim the request size to the endpoint buffer size. Co-developed-by: Szymon Heidrich <szymon.heidrich@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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