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2022-01-27drm/xen: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-38-javierm@redhat.com
2022-01-27drm/tilcdc: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Jyri Sarha <jyri.sarha@iki.fi> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-37-javierm@redhat.com
2022-01-27drm/tegra: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-36-javierm@redhat.com
2022-01-27drm/sti: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-35-javierm@redhat.com
2022-01-27drm/sprd: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-34-javierm@redhat.com
2022-01-27drm/rockchip: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-33-javierm@redhat.com
2022-01-27drm: rcar-du: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-32-javierm@redhat.com
2022-01-27drm/omap: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-31-javierm@redhat.com
2022-01-27drm/msm: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-30-javierm@redhat.com
2022-01-27drm/mediatek: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-29-javierm@redhat.com
2022-01-27drm/mcde: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-28-javierm@redhat.com
2022-01-27drm/ingenic: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-27-javierm@redhat.com
2022-01-27drm/imx: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-26-javierm@redhat.com
2022-01-27drm/hyperv: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Deepak Rawat <drawat.floss@gmail.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-25-javierm@redhat.com
2022-01-27drm/gma500: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-24-javierm@redhat.com
2022-01-27drm/exynos: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-23-javierm@redhat.com
2022-01-27drm/armada: Add support for the nomodeset kernel parameterJavier Martinez Canillas
According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-22-javierm@redhat.com
2022-01-27drm/xlnx: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-21-javierm@redhat.com
2022-01-27drm/tve200: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-20-javierm@redhat.com
2022-01-27drm/arc: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-19-javierm@redhat.com
2022-01-27drm/tidss: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-18-javierm@redhat.com
2022-01-27drm/sun4i: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-17-javierm@redhat.com
2022-01-27drm/stm: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-16-javierm@redhat.com
2022-01-27drm/shmobile: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-15-javierm@redhat.com
2022-01-27drm: mxsfb: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-14-javierm@redhat.com
2022-01-27drm/meson: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-13-javierm@redhat.com
2022-01-27drm/kmb: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-12-javierm@redhat.com
2022-01-27drm/hisilicon/kirin: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-10-javierm@redhat.com
2022-01-27drm/fsl-dcu: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-9-javierm@redhat.com
2022-01-27drm/atmel-hlcdc: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-8-javierm@redhat.com
2022-01-27drm/aspeed: Use drm_module_platform_driver() to register the driverJavier Martinez Canillas
The macro calls to a DRM specific platform driver init handler that checks whether the driver is allowed to be registered or not. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217003752.3946210-7-javierm@redhat.com
2022-01-27drm/vmwgfx: Replace module-init boiler-plate code with DRM helpersThomas Zimmermann
Remove custom vmwgfx_init() and vmwgfx_exit() functions and initialize the module with DRM_module helpers. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217144615.32733-11-tzimmermann@suse.de
2022-01-27drm/vboxvideo: Replace module-init boiler-plate code with DRM helpersThomas Zimmermann
Remove custom vbox_init() and vbox_exit() functions and initialize the module with DRM module helpers. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217144615.32733-10-tzimmermann@suse.de
2022-01-27drm/qxl: Replace module-init boiler-plate code with DRM helpersThomas Zimmermann
Remove custom qxl_init() and qxl_exit() functions and initialize the module with DRM module helpers. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217144615.32733-9-tzimmermann@suse.de
2022-01-27drm/qxl: Move ioctl array next to its only userThomas Zimmermann
Move the array qxl_ioctl to qxl_drv.c and initialize the num_ioctls field of struct drm_driver at runtime. Replaces the current fragile ioctl setup and allows for generating the module init/exit code. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217144615.32733-8-tzimmermann@suse.de
2022-01-27drm/mgag200: Replace module-init boiler-plate code with DRM helpersThomas Zimmermann
Remove custom mgag200_init() and mgag200_exit() functions and initialize the module with DRM_module helpers. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20211217144615.32733-7-tzimmermann@suse.de
2022-01-27io_uring: remove unused argument from io_rsrc_node_allocUsama Arif
io_ring_ctx is not used in the function. Signed-off-by: Usama Arif <usama.arif@bytedance.com> Link: https://lore.kernel.org/r/20220127140444.4016585-1-usama.arif@bytedance.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-27blk-mq: Fix wrong wakeup batch configuration which will cause hangLaibin Qiu
Commit 180dccb0dba4f ("blk-mq: fix tag_get wait task can't be awakened") will recalculate wake_batch when incrementing or decrementing active_queues to avoid wake_batch > hctx_max_depth. At the same time, in order to not affect performance as much as possible, the minimum wakeup batch is set to 4. But when the QD is small (such as QD=1), if inc or dec active_queues increases wakeup batch, that can lead to a hang: Fix this problem with the following strategies: QD : >= 32 | < 32 --------------------------------- wakeup batch: 8~4 | 3~1 Fixes: 180dccb0dba4f ("blk-mq: fix tag_get wait task can't be awakened") Link: https://lore.kernel.org/linux-block/78cafe94-a787-e006-8851-69906f0c2128@huawei.com/T/#t Reported-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca> Signed-off-by: Laibin Qiu <qiulaibin@huawei.com> Tested-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca> Link: https://lore.kernel.org/r/20220127100047.1763746-1-qiulaibin@huawei.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-01-27net: bridge: vlan: fix memory leak in __allowed_ingressTim Yi
When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false. Fixes: a580c76d534c ("net: bridge: vlan: add per-vlan state") Signed-off-by: Tim Yi <tim.yi@pica8.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Link: https://lore.kernel.org/r/20220127074953.12632-1-tim.yi@pica8.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-27net: socket: rename SKB_DROP_REASON_SOCKET_FILTERMenglong Dong
Rename SKB_DROP_REASON_SOCKET_FILTER, which is used as the reason of skb drop out of socket filter before it's part of a released kernel. It will be used for more protocols than just TCP in future series. Signed-off-by: Menglong Dong <imagedong@tencent.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/all/20220127091308.91401-2-imagedong@tencent.com/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-27ipv4: remove sparse error in ip_neigh_gw4()Eric Dumazet
./include/net/route.h:373:48: warning: incorrect type in argument 2 (different base types) ./include/net/route.h:373:48: expected unsigned int [usertype] key ./include/net/route.h:373:48: got restricted __be32 [usertype] daddr Fixes: 5c9f7c1dfc2e ("ipv4: Add helpers for neigh lookup for nexthop") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20220127013404.1279313-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-27Merge branch 'ipv4-less-uses-of-shared-ip-generator'Jakub Kicinski
Eric Dumazet says: ==================== ipv4: less uses of shared IP generator From: Eric Dumazet <edumazet@google.com> We keep receiving research reports based on linux IPID generation. Before breaking part of the Internet by switching to pure random generator, this series reduces the need for the shared IP generator for TCP sockets. ==================== Link: https://lore.kernel.org/r/20220127011022.1274803-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-27ipv4: avoid using shared IP generator for connected socketsEric Dumazet
ip_select_ident_segs() has been very conservative about using the connected socket private generator only for packets with IP_DF set, claiming it was needed for some VJ compression implementations. As mentioned in this referenced document, this can be abused. (Ref: Off-Path TCP Exploits of the Mixed IPID Assignment) Before switching to pure random IPID generation and possibly hurt some workloads, lets use the private inet socket generator. Not only this will remove one vulnerability, this will also improve performance of TCP flows using pmtudisc==IP_PMTUDISC_DONT Fixes: 73f156a6e8c1 ("inetpeer: get rid of ip_id_count") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reported-by: Ray Che <xijiache@gmail.com> Cc: Willy Tarreau <w@1wt.eu> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-27ipv4: tcp: send zero IPID in SYNACK messagesEric Dumazet
In commit 431280eebed9 ("ipv4: tcp: send zero IPID for RST and ACK sent in SYN-RECV and TIME-WAIT state") we took care of some ctl packets sent by TCP. It turns out we need to use a similar strategy for SYNACK packets. By default, they carry IP_DF and IPID==0, but there are ways to ask them to use the hashed IP ident generator and thus be used to build off-path attacks. (Ref: Off-Path TCP Exploits of the Mixed IPID Assignment) One of this way is to force (before listener is started) echo 1 >/proc/sys/net/ipv4/ip_no_pmtu_disc Another way is using forged ICMP ICMP_FRAG_NEEDED with a very small MTU (like 68) to force a false return from ip_dont_fragment() In this patch, ip_build_and_send_pkt() uses the following heuristics. 1) Most SYNACK packets are smaller than IPV4_MIN_MTU and therefore can use IP_DF regardless of the listener or route pmtu setting. 2) In case the SYNACK packet is bigger than IPV4_MIN_MTU, we use prandom_u32() generator instead of the IPv4 hashed ident one. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Ray Che <xijiache@gmail.com> Reviewed-by: David Ahern <dsahern@kernel.org> Cc: Geoff Alexander <alexandg@cs.unm.edu> Cc: Willy Tarreau <w@1wt.eu> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-27drm/vmwgfx: Fix stale file descriptors on failed usercopyMathias Krause
A failing usercopy of the fence_rep object will lead to a stale entry in the file descriptor table as put_unused_fd() won't release it. This enables userland to refer to a dangling 'file' object through that still valid file descriptor, leading to all kinds of use-after-free exploitation scenarios. Fix this by deferring the call to fd_install() until after the usercopy has succeeded. Fixes: c906965dee22 ("drm/vmwgfx: Add export fence to file descriptor support") Signed-off-by: Mathias Krause <minipli@grsecurity.net> Signed-off-by: Zack Rusin <zackr@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-27ipv4: raw: lock the socket in raw_bind()Eric Dumazet
For some reason, raw_bind() forgot to lock the socket. BUG: KCSAN: data-race in __ip4_datagram_connect / raw_bind write to 0xffff8881170d4308 of 4 bytes by task 5466 on cpu 0: raw_bind+0x1b0/0x250 net/ipv4/raw.c:739 inet_bind+0x56/0xa0 net/ipv4/af_inet.c:443 __sys_bind+0x14b/0x1b0 net/socket.c:1697 __do_sys_bind net/socket.c:1708 [inline] __se_sys_bind net/socket.c:1706 [inline] __x64_sys_bind+0x3d/0x50 net/socket.c:1706 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881170d4308 of 4 bytes by task 5468 on cpu 1: __ip4_datagram_connect+0xb7/0x7b0 net/ipv4/datagram.c:39 ip4_datagram_connect+0x2a/0x40 net/ipv4/datagram.c:89 inet_dgram_connect+0x107/0x190 net/ipv4/af_inet.c:576 __sys_connect_file net/socket.c:1900 [inline] __sys_connect+0x197/0x1b0 net/socket.c:1917 __do_sys_connect net/socket.c:1927 [inline] __se_sys_connect net/socket.c:1924 [inline] __x64_sys_connect+0x3d/0x50 net/socket.c:1924 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000 -> 0x0003007f Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 5468 Comm: syz-executor.5 Not tainted 5.17.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-27MAINTAINERS: add missing IPv4/IPv6 header pathsJakub Kicinski
Add missing headers to the IP entry. Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-27MAINTAINERS: add more files to eth PHYJakub Kicinski
include/linux/linkmode.h and include/linux/mii.h do not match anything in MAINTAINERS. Looks like they should be under Ethernet PHY. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-27Merge tag 'nvme-5.17-2022-01-27' of git://git.infradead.org/nvme into block-5.17Jens Axboe
Pull NVMe fixes from Christoph: "nvme fixes for Linux 5.17 - add the IGNORE_DEV_SUBNQN quirk for Intel P4500/P4600 SSDs (Wu Zheng) - remove the unneeded ret variable in nvmf_dev_show (Changcheng Deng)" * tag 'nvme-5.17-2022-01-27' of git://git.infradead.org/nvme: nvme-fabrics: remove the unneeded ret variable in nvmf_dev_show nvme-pci: add the IGNORE_DEV_SUBNQN quirk for Intel P4500/P4600 SSDs
2022-01-27net: stmmac: dwmac-sun8i: use return val of readl_poll_timeout()Jisheng Zhang
When readl_poll_timeout() timeout, we'd better directly use its return value. Before this patch: [ 2.145528] dwmac-sun8i: probe of 4500000.ethernet failed with error -14 After this patch: [ 2.138520] dwmac-sun8i: probe of 4500000.ethernet failed with error -110 Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>