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2022-07-01Merge tag 'drm-intel-gt-next-2022-06-29' of git://anongit.freedesktop.org/drm/drm-intel into drm-nextDave Airlie2-12/+28
UAPI Changes: - Expose per tile media freq factor in sysfs (Ashutosh Dixit, Dale B Stimson) - Document memory residency and Flat-CCS capability of obj (Ramalingam C) - Disable GETPARAM lookups of I915_PARAM_[SUB]SLICE_MASK on Xe_HP+ (Matt Roper) Cross-subsystem Changes: - Rename intel-gtt symbols (Lucas De Marchi) Core Changes: Driver Changes: - Support programming the EU priority in the GuC descriptor (DG2) (Matthew Brost) - DG2 HuC loading support (Daniele Ceraolo Spurio) - Fix build error without CONFIG_PM (YueHaibing) - Enable THP on Icelake and beyond (Tvrtko Ursulin) - Only setup private tmpfs mount when needed and fix logging (Tvrtko Ursulin) - Make __guc_reset_context aware of guilty engines (Umesh Nerlige Ramappa) - DG2 small bar memory probing fixes (Nirmoy Das) - Remove unnecessary GuC err capture noise (Alan Previn) - Fix i915_gem_object_ggtt_pin_ww regression on old platforms (Maarten Lankhorst) - Fix undefined behavior in GuC backend due to shift overflowing the constant (Borislav Petkov) - New DG2 workarounds (Swathi Dhanavanthri, Anshuman Gupta) - Report no hwconfig support on ADL-N (Balasubramani Vivekanandan) - Fix error_state_read ptr + offset use (Alan Previn) - Expose per tile media freq factor in sysfs (Ashutosh Dixit, Dale B Stimson) - Fix memory leaks in per-gt sysfs (Ashutosh Dixit) - Fix dma_resv fence handling in multi-batch execbuf (Nirmoy Das) - Add extra registers to GPU error dump on Gen11+ (Stuart Summers) - More PVC+DG2 workarounds (Matt Roper) - Improve user experience and driver robustness under SIGINT or similar (Tvrtko Ursulin) - Don't show engine classes not present (Tvrtko Ursulin) - Improve on suspend / resume time with VT-d enabled (Thomas Hellström) - Add missing else (katrinzhou) - Don't leak lmem mapping in vma_evict (Juha-Pekka Heikkila) - Add smem fallback allocation for dpt (Juha-Pekka Heikkila) - Tweak the ordering in cpu_write_needs_clflush (Matthew Auld) - Do not access rq->engine without a reference (Niranjana Vishwanathapura) - Revert "drm/i915: Hold reference to intel_context over life of i915_request" (Niranjana Vishwanathapura) - Don't update engine busyness stats too frequently (Alan Previn) - Add additional steps for Wa_22011802037 for execlist backend (Umesh Nerlige Ramappa) - Fix a lockdep warning at error capture (Nirmoy Das) - Ponte Vecchio prep work and new blitter engines (Matt Roper, John Harrison, Lucas De Marchi) - Read correct RP_STATE_CAP register (PVC) (Matt Roper) - Define MOCS table for PVC (Ayaz A Siddiqui) - Driver refactor and support Ponte Vecchio forcewake handling (Matt Roper) - Remove additional 3D flags from PIPE_CONTROL (Ponte Vecchio) (Stuart Summers) - XEHPSDV and PVC do not use HuC (Daniele Ceraolo Spurio) - Extract stepping information from PCI revid (Ponte Vecchio) (Matt Roper) - Add initial PVC workarounds (Stuart Summers) - SSEU handling driver refactor and Ponte Vecchio support (Matt Roper) - GuC depriv applies to PVC (Matt Roper) - Add register steering (Ponte Vecchio) (Matt Roper) - Add recommended MMIO setting (Ponte Vecchio) (Matt Roper) - Move multicast register handling to a dedicated file (Matt Roper) - Cleanup interface for MCR operations (Matt Roper) - Extend i915_vma_pin_iomap() (CQ Tang) - Re-do the intel-gtt split (Lucas De Marchi) - Correct duplicated/misplaced GT register definitions (Matt Roper) - Prefer "XEHP_" prefix for registers (Matt Roper) - Don't use DRM_DEBUG_WARN_ON for unexpected l3bank/mslice config (Tvrtko Ursulin) - Don't use DRM_DEBUG_WARN_ON for ring unexpectedly not idle (Tvrtko Ursulin) - Make drop_pages() return bool (Lucas De Marchi) - Fix CFI violation with show_dynamic_id() (Nathan Chancellor) - Use i915_probe_error instead of drm_error in GuC code (Vinay Belgaumkar) - Fix use of static in macro mismatch (Andi Shyti) - Update tiled blits selftest (Bommu Krishnaiah) - Future-proof platform checks (Matt Roper) - Only include what's needed (Jani Nikula) - remove accidental static from a local variable (Jani Nikula) - Add global forcewake request to drpc (Vinay Belgaumkar) - Fix spelling typo in comment (pengfuyuan) - Increase timeout for live_parallel_switch selftest (Akeem G Abodunrin) - Use non-blocking H2G for waitboost (Vinay Belgaumkar) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/YrwtLM081SQUG1Dc@tursulin-desk
2022-06-29iosys-map: Add per-word writeLucas De Marchi1-9/+29
Like was done for read, provide the equivalent for write. Even if current users are not in the hot path, this should future-proof it. v2: - Remove default from _Generic() - callers wanting to write more than u64 should use iosys_map_memcpy_to() - Add WRITE_ONCE() cases dereferencing the pointer when using system memory v3: - Fix precedence issue when casting inside WRITE_ONCE(). By not using () around vaddr__ the offset was not part of the cast, but rather added to it, producing a wrong address - Remove compiletime_assert() as WRITE_ONCE() already contains it Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Reviewed-by: Christian König <christian.koenig@amd.com> # v1 Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220628191016.3899428-2-lucas.demarchi@intel.com
2022-06-29iosys-map: Add per-word readLucas De Marchi1-9/+33
Instead of always falling back to memcpy_fromio() for any size, prefer using read{b,w,l}(). When reading struct members it's common to read individual integer variables individually. Going through memcpy_fromio() for each of them poses a high penalty. Employ a similar trick as __seqprop() by using _Generic() to generate only the specific call based on a type-compatible variable. For a pariticular i915 workload producing GPU context switches, __get_engine_usage_record() is particularly hot since the engine usage is read from device local memory with dgfx, possibly multiple times since it's racy. Test execution time for this test shows a ~12.5% improvement with DG2: Before: nrepeats = 1000; min = 7.63243e+06; max = 1.01817e+07; median = 9.52548e+06; var = 526149; After: nrepeats = 1000; min = 7.03402e+06; max = 8.8832e+06; median = 8.33955e+06; var = 333113; Other things attempted that didn't prove very useful: 1) Change the _Generic() on x86 to just dereference the memory address 2) Change __get_engine_usage_record() to do just 1 read per loop, comparing with the previous value read 3) Change __get_engine_usage_record() to access the fields directly as it was before the conversion to iosys-map (3) did gave a small improvement (~3%), but doesn't seem to scale well to other similar cases in the driver. Additional test by Chris Wilson using gem_create from igt with some changes to track object creation time. This happens to accidentally stress this code path: Pre iosys_map conversion of engine busyness: lmem0: Creating 262144 4KiB objects took 59274.2ms Unpatched: lmem0: Creating 262144 4KiB objects took 108830.2ms With readl (this patch): lmem0: Creating 262144 4KiB objects took 61348.6ms s/readl/READ_ONCE/ lmem0: Creating 262144 4KiB objects took 61333.2ms So we do take a little bit more time than before the conversion, but that is due to other factors: bringing the READ_ONCE back would be as good as just doing this conversion. v2: - Remove default from _Generic() - callers wanting to read more than u64 should use iosys_map_memcpy_from() - Add READ_ONCE() cases dereferencing the pointer when using system memory v3: - Fix precedence issue when casting inside READ_ONCE(). By not using () around vaddr__ the offset was not part of the cast, but rather added to it, producing a wrong address - Remove compiletime_assert() as READ_ONCE() already contains it Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> # v1 Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220628191016.3899428-1-lucas.demarchi@intel.com
2022-06-28drm/fourcc: Document the Intel CCS modifiers' CC plane expected pitchImre Deak1-4/+4
The driver expects the pitch of the Intel CCS CC color planes to be 64 bytes aligned, adjust the modifier descriptions accordingly. Cc: Nanley Chery <nanley.g.chery@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Nanley Chery <nanley.g.chery@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220623144955.2486736-1-imre.deak@intel.com
2022-06-27drm/rect: Add DRM_RECT_INIT() macroJosé Expósito1-0/+16
Add a helper macro to initialize a rectangle from x, y, width and height information. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: José Expósito <jose.exposito89@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220620160640.3790-2-jose.exposito89@gmail.com
2022-06-27drm/atomic-helper: Add helper drm_atomic_helper_check_crtc_state()Thomas Zimmermann1-0/+2
Add drm_atomic_helper_check_crtc_state(), which contains tests common to many CRTCs. The first added test verifies that an enabled CRTC has at least one enabled primary plane. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jocelyn Falempe <jfalempe@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220617103226.25617-2-tzimmermann@suse.de
2022-06-27drm: Implement DRM aperture helpers under video/Thomas Zimmermann1-0/+56
Implement DRM's aperture helpers under video/ for sharing with other sub-systems. Remove DRM-isms from the interface. The helpers track the ownership of framebuffer apertures and provide hand-over from firmware, such as EFI and VESA, to native graphics drivers. Other subsystems, such as fbdev and vfio, also have to maintain ownership of framebuffer apertures. Moving DRM's aperture helpers to a more public location allows all subsystems to interact with each other and share a common implementation. The aperture helpers are selected by the various firmware drivers within DRM and fbdev, and the VGA text-console driver. The original DRM interface is kept in place for use by DRM drivers. v3: * prefix all interfaces with aperture_ (Javier) * rework and simplify documentation (Javier) * rename struct dev_aperture to struct aperture_range * rebase onto latest DRM * update MAINTAINERS entry Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220622140134.12763-3-tzimmermann@suse.de
2022-06-24drm/mipi-dsi: Introduce mipi_dsi_dcs_write_seq macroJoel Selvaraj1-0/+17
A helper macro that can be used to simplify sending DCS commands. It is useful in scenarios like panel initialization which can sometimes involve sending lot of DCS commands. Signed-off-by: Joel Selvaraj <jo@jsfamily.in> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/BY5PR02MB700952493EEB6F0E77DC8416D9DF9@BY5PR02MB7009.namprd02.prod.outlook.com
2022-06-22agp/intel: Rename intel-gtt symbolsLucas De Marchi1-12/+12
Exporting the symbols like intel_gtt_* creates some confusion inside i915 that has symbols named similarly. In an attempt to isolate platforms needing intel-gtt.ko, commit 7a5c922377b4 ("drm/i915/gt: Split intel-gtt functions by arch") moved way too much inside gt/intel_gt_gmch.c, even the functions that don't callout to this module. Rename the symbols to make the separation clear. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220617230559.2109427-1-lucas.demarchi@intel.com
2022-06-21drm/dp: Add wait_hpd_asserted() callback to struct drm_dp_auxDouglas Anderson1-0/+30
Sometimes it's useful for users of the DP AUX bus (like panels) to be able to poll HPD. Let's add a callback that allows DP AUX busses drivers to provide this. Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220614145327.v4.1.Icf57bb12233a47727013c6ab69eebf803e22ebc1@changeid
2022-06-21drm: Config orientation property if panel provides itHsin-Yi Wang1-0/+14
Panel orientation property should be set before drm_dev_register(). Some drm driver calls drm_dev_register() in .bind(). However, most panels sets orientation property relatively late, mostly in .get_modes() callback, since this is when they are able to get the connector and binds the orientation property to it, though the value should be known when the panel is probed. In drm_bridge_connector_init(), if a bridge is a panel bridge, use it to set the connector's panel orientation property. Suggested-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> [dianders: fixed space vs. tab indentation] Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220609072722.3488207-9-hsinyi@chromium.org
2022-06-21drm/panel: Add an API to allow drm to set orientation from panelHsin-Yi Wang2-0/+13
Panels usually call drm_connector_set_panel_orientation(), which is later than drm/kms driver calling drm_dev_register(). This leads to a WARN(). The orientation property is known earlier. For example, some panels parse the property through device tree during probe. Add an API to return the property from panel to drm/kms driver, so the drivers are able to call drm_connector_set_orientation_from_panel() before drm_dev_register(). Suggested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> [dianders: removed space before tab] Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220609072722.3488207-2-hsinyi@chromium.org
2022-06-20drm: Drop drm_connector.h from drm_crtc.hVille Syrjälä1-1/+1
drm_crtc.h has no need for drm_connector.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_connector.h. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220613200317.11305-5-ville.syrjala@linux.intel.com Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20drm: Drop drm_blend.h from drm_crtc.hVille Syrjälä1-1/+0
drm_crtc.h has no need for drm_blend.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_blend.h. Quite a few placs do currently depend on drm_blend.h without actually including it directly. All of those need to be fixed up. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220613200317.11305-4-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20drm: Drop drm_framebuffer.h from drm_crtc.hVille Syrjälä1-1/+1
drm_crtc.h has no need for drm_frambuffer.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_framebuffer.h. Quite a few placs do currently depend on drm_framebuffer.h without actually including it directly. All of those need to be fixed up. v2: Fix up msm some more v2: Deal with ingenic and shmobile as well Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220614095449.29311-1-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20drm: Drop drm_edid.h from drm_crtc.hVille Syrjälä1-1/+0
drm_crtc.h has no need for drm_edid.h, so don't include it. Avoids useless rebuilds of the entire universe when touching drm_edid.h. Quite a few placs do currently depend on drm_edid.h without actually including it directly. All of those need to be fixed up. v2: Fix up i915 and msm some more v3: Fix alphabetical ordering (Sam) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220614090245.30283-1-ville.syrjala@linux.intel.com Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20media: uapi: Add some RGB bus formats for i.MX8qm/qxp pixel combinerLiu Ying1-1/+5
This patch adds RGB666_1X30_CPADLO, RGB888_1X30_CPADLO, RGB666_1X36_CPADLO and RGB888_1X36_CPADLO bus formats used by i.MX8qm/qxp pixel combiner. The RGB pixels with padding low per component are transmitted on a 30-bit input bus(10-bit per component) from a display controller or a 36-bit output bus(12-bit per component) to a pixel link. Reviewed-by: Robert Foss <robert.foss@linaro.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Liu Ying <victor.liu@nxp.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220611141421.718743-2-victor.liu@nxp.com
2022-06-20Merge drm/drm-next into drm-misc-nextThomas Zimmermann644-5218/+23560
Backmerging to get new regmap APIs of v5.19-rc1. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2022-06-16iosys-map: Fix typo in documentationLucas De Marchi1-1/+1
It's one argument, vaddr_iomem, not 2 (vaddr and _iomem). Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220610232130.2865479-3-lucas.demarchi@intel.com
2022-06-15Merge tag 'drm-misc-next-2022-06-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-nextDaniel Vetter10-74/+109
drm-misc-next for 5.20: UAPI Changes: * connector: export bpc limits in debugfs * dma-buf: Print buffer name in debugfs Cross-subsystem Changes: * dma-buf: Improve dma-fence handling; Cleanups * fbdev: Device-unregistering fixes Core Changes: * client: Only use driver-validated modes to avoid blank screen * dp-aux: Make probing more reliable; Small fixes * edit: CEA data-block iterators; Introduce struct drm_edid; Many cleanups * gem: Don't use framebuffer format's non-exising color planes * probe-helper: Use 640x480 as DisplayPort fallback; Refactoring * scheduler: Don't kill jobs in interrupt context Driver Changes: * amdgpu: Use atomic fence helpers in DM; Fix VRAM address calculation; Export CRTC bpc settings via debugfs * bridge: Add TI-DLPC3433; anx7625: Fixes; fy07024di26a30d: Optional GPIO reset; icn6211: Cleanups; ldb: Add reg and reg-name properties to bindings, Kconfig fixes; lt9611: Fix display sensing; lt9611uxc: Fixes; nwl-dsi: Fixes; ps8640: Cleanups; st7735r: Fixes; tc358767: DSI/DPI refactoring and DSI-to-eDP support, Fixes; ti-sn65dsi83: Fixes; * gma500: Cleanup connector I2C handling * hyperv: Unify VRAM allocation of Gen1 and Gen2 * i915: export CRTC bpc settings via debugfs * meson: Support YUV422 output; Refcount fixes * mgag200: Support damage clipping; Support gamma handling; Protect concurrent HW access; Fixes to connector; Store model-specific limits in device-info structure; Cleanups * nouveau: Fixes and Cleanups * panel: Kconfig fixes * panfrost: Valhall support * r128: Fix bit-shift overflow * rockchip: Locking fixes in error path; Minor cleanups * ssd130x: Fix built-in linkage * ttm: Cleanups * udl; Always advertize VGA connector * fbdev/vesa: Support COMPILE_TEST Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/YqBtumw05JZDEZE2@linux-uq9g
2022-06-13drm/edid: add new interfaces around struct drm_edidJani Nikula1-0/+9
Add new functions drm_edid_read(), drm_edid_read_ddc(), and drm_edid_read_custom() to replace drm_get_edid() and drm_do_get_edid() for reading the EDID. The transition is expected to happen over a fairly long time. Note that the new drm_edid_read*() functions do not do any of the connector updates anymore. The reading and parsing will be completely separated from each other. Add new functions drm_edid_alloc(), drm_edid_dup(), and drm_edid_free() for allocating and freeing drm_edid containers. Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/5a6532a94cad6a79424f6d1918dbe7b7d607ac03.1654674560.git.jani.nikula@intel.com
2022-06-12Merge tag 'wq-for-5.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds2-13/+61
Pull workqueue fixes from Tejun Heo: "Tetsuo's patch to trigger build warnings if system-wide wq's are flushed along with a TP type update and trivial comment update" * tag 'wq-for-5.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Switch to new kerneldoc syntax for named variable macro argument workqueue: Fix type of cpu in trace event workqueue: Wrap flush_workqueue() using a macro
2022-06-12Merge tag 'random-5.19-rc2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/randomLinus Torvalds2-3/+2
Pull random number generator fixes from Jason Donenfeld: - A fix for a 5.19 regression for a case in which early device tree initializes the RNG, which flips a static branch. On most plaforms, jump labels aren't initialized until much later, so this caused splats. On a few mailing list threads, we cooked up easy fixes for arm64, arm32, and risc-v. But then things looked slightly more involved for xtensa, powerpc, arc, and mips. And at that point, when we're patching 7 architectures in a place before the console is even available, it seems like the cost/risk just wasn't worth it. So random.c works around it now by checking the already exported `static_key_initialized` boolean, as though somebody already ran into this issue in the past. I'm not super jazzed about that; it'd be prettier to not have to complicate downstream code. But I suppose it's practical. - A few small code nits and adding a missing __init annotation. - A change to the default config values to use the cpu and bootloader's seeds for initializing the RNG earlier. This brings them into line with what all the distros do (Fedora/RHEL, Debian, Ubuntu, Gentoo, Arch, NixOS, Alpine, SUSE, and Void... at least), and moreover will now give us test coverage in various test beds that might have caught the above device tree bug earlier. - A change to WireGuard CI's configuration to increase test coverage around the RNG. - A documentation comment fix to unrelated maintainerless CRC code that I was asked to take, I guess because it has to do with polynomials (which the RNG thankfully no longer uses). * tag 'random-5.19-rc2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: wireguard: selftests: use maximum cpu features and allow rng seeding random: remove rng_has_arch_random() random: credit cpu and bootloader seeds by default random: do not use jump labels before they are initialized random: account for arch randomness in bits random: mark bootloader randomness code as __init random: avoid checking crng_ready() twice in random_init() crc-itu-t: fix typo in CRC ITU-T polynomial comment
2022-06-12drm: of: Mark empty drm_of_get_data_lanes_count and drm_of_get_data_lanes_ep staticMarek Vasut1-6/+8
Mark empty implementations of drm_of_get_data_lanes_count and drm_of_get_data_lanes_ep as static inline, just like the rest of empty implementations of various functions in drm_of.h . Add missing comma to drm_of_get_data_lanes_count_ep() . Fixes: fc801750b197 ("drm: of: Add drm_of_get_data_lanes_count and drm_of_get_data_lanes_ep") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Maxime Ripard <maxime@cerno.tech> Cc: Robert Foss <robert.foss@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> To: dri-devel@lists.freedesktop.org Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220612132152.91052-1-marex@denx.de
2022-06-12drm: of: Add drm_of_get_data_lanes_count and drm_of_get_data_lanes_epMarek Vasut1-0/+20
Add helper function to count and sanitize DT "data-lanes" property and return either error or the data-lanes count. This is useful for both DSI and (e)DP "data-lanes" property. The later version of the function is an extra wrapper which handles the endpoint look up by regs, that's what majority of the drivers duplicate too, but not all of them. Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrzej Hajda <andrzej.hajda@intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Maxime Ripard <maxime@cerno.tech> Cc: Robert Foss <robert.foss@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> To: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20220524010522.528569-1-marex@denx.de
2022-06-11workqueue: Switch to new kerneldoc syntax for named variable macro argumentJonathan Neuschäfer1-1/+1
The syntax without dots is available since commit 43756e347f21 ("scripts/kernel-doc: Add support for named variable macro arguments"). The same HTML output is produced with and without this patch. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Tejun Heo <tj@kernel.org>
2022-06-11Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds1-2/+3
Pull virtio fixes from Michael Tsirkin: "Fixes all over the place, most notably fixes for latent bugs in drivers that got exposed by suppressing interrupts before DRIVER_OK, which in turn has been done by 8b4ec69d7e09 ("virtio: harden vring IRQ")" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: um: virt-pci: set device ready in probe() vdpa: make get_vq_group and set_group_asid optional virtio: Fix all occurences of the "the the" typo vduse: Fix NULL pointer dereference on sysfs access vringh: Fix loop descriptors check in the indirect cases vdpa/mlx5: clean up indenting in handle_ctrl_vlan() vdpa/mlx5: fix error code for deleting vlan virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed vdpa/mlx5: Fix syntax errors in comments virtio-rng: make device ready before making request
2022-06-11drm: Fix htmldocs indentation warning w/ DP AUX power requirementsDouglas Anderson1-0/+2
Two blank lines are needed to make the rst valid. Fixes: 69ef4a192bba ("drm: Document the power requirements for DP AUX transfers") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220611095445.1.I534072d346b1ebbf0db565b714de9b65cbb24651@changeid
2022-06-10Merge tag 'nfsd-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linuxLinus Torvalds1-1/+15
Pull nfsd fixes from Chuck Lever: "Notable changes: - There is now a backup maintainer for NFSD Notable fixes: - Prevent array overruns in svc_rdma_build_writes() - Prevent buffer overruns when encoding NFSv3 READDIR results - Fix a potential UAF in nfsd_file_put()" * tag 'nfsd-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: SUNRPC: Remove pointer type casts from xdr_get_next_encode_buffer() SUNRPC: Clean up xdr_get_next_encode_buffer() SUNRPC: Clean up xdr_commit_encode() SUNRPC: Optimize xdr_reserve_space() SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer() SUNRPC: Trap RDMA segment overflows NFSD: Fix potential use-after-free in nfsd_file_put() MAINTAINERS: reciprocal co-maintainership for file locking and nfsd
2022-06-10Merge tag 'for-5.19/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds1-1/+0
Pull device mapper fixes from Mike Snitzer: - Fix DM core's bioset initialization so that blk integrity pool is properly setup. Remove now unused bioset_init_from_src. - Fix DM zoned hang from locking imbalance due to needless check in clone_endio(). * tag 'for-5.19/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm: fix zoned locking imbalance due to needless check in clone_endio block: remove bioset_init_from_src dm: fix bio_set allocation
2022-06-10Merge branch 'fscache-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fsLinus Torvalds1-14/+11
Pull fscache cleanups from David Howells: - fix checker complaint in afs - two netfs cleanups: - netfs_inode calling convention cleanup plus the requisite documentation changes - replace the ->cleanup op with a ->free_request op. This is possible as the I/O request is now always available at the cleanup point as the stuff to be cleaned up is no longer passed into the API functions, but rather obtained by ->init_request. * 'fscache-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: netfs: Rename the netfs_io_request cleanup op and give it an op pointer netfs: Further cleanups after struct netfs_inode wrapper introduced afs: Fix some checker issues
2022-06-10netfs: Rename the netfs_io_request cleanup op and give it an op pointerDavid Howells1-1/+2
The netfs_io_request cleanup op is now always in a position to be given a pointer to a netfs_io_request struct, so this can be passed in instead of the mapping and private data arguments (both of which are included in the struct). So rename the ->cleanup op to ->free_request (to match ->init_request) and pass in the I/O pointer. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> cc: linux-cachefs@redhat.com
2022-06-10netfs: Further cleanups after struct netfs_inode wrapper introducedLinus Torvalds1-13/+9
Change the signature of netfs helper functions to take a struct netfs_inode pointer rather than a struct inode pointer where appropriate, thereby relieving the need for the network filesystem to convert its internal inode format down to the VFS inode only for netfslib to bounce it back up. For type safety, it's better not to do that (and it's less typing too). Give netfs_write_begin() an extra argument to pass in a pointer to the netfs_inode struct rather than deriving it internally from the file pointer. Note that the ->write_begin() and ->write_end() ops are intended to be replaced in the future by netfslib code that manages this without the need to call in twice for each page. netfs_readpage() and similar are intended to be pointed at directly by the address_space_operations table, so must stick to the signature dictated by the function pointers there. Changes ======= - Updated the kerneldoc comments and documentation [DH]. Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-cachefs@redhat.com Link: https://lore.kernel.org/r/CAHk-=wgkwKyNmNdKpQkqZ6DnmUL-x9hp0YBnUGjaPFEAdxDTbw@mail.gmail.com/
2022-06-10Merge tag 'folio-5.19a' of git://git.infradead.org/users/willy/pagecacheLinus Torvalds2-0/+6
Pull folio fixes from Matthew Wilcox: "Four folio-related fixes: - Don't release a folio while it's still locked - Fix a use-after-free after dropping the mmap_lock - Fix a memory leak when splitting a page - Fix a kernel-doc warning for struct folio" * tag 'folio-5.19a' of git://git.infradead.org/users/willy/pagecache: mm: Add kernel-doc for folio->mlock_count mm/huge_memory: Fix xarray node memory leak filemap: Cache the value of vm_flags filemap: Don't release a locked folio
2022-06-10Merge tag 'ata-5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libataLinus Torvalds1-1/+0
Pull ATA fixes from Damien Le Moal: "Several small fixes for rc2: - Remove unused field in struct ata_port (Hannes) - Fix a potential (very unlikely) NULL pointer dereference in ata_host_alloc_pinfo() (Sergey) - Fix a device reference leak in the pata_octeon_cf driver (Miaoqian) - Fixes for handling access to the concurrent positioning ranges log page used with multi-actuator HDDs (Tyler) - Fix the values shown by the pio_mode and dma_mode sysfs device attributes (Sergey) - Update the MAINTAINERS file to add libata sysfs ABI documentation file (Sergey)" * tag 'ata-5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: MAINTAINERS: add ATA sysfs file documentation to libata entry ata: libata-transport: fix {dma|pio|xfer}_mode sysfs files libata: fix translation of concurrent positioning ranges libata: fix reading concurrent positioning ranges log ata: pata_octeon_cf: Fix refcount leak in octeon_cf_probe ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() ata: libata: drop 'sas_last_tag'
2022-06-10Merge tag 'net-5.19-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds1-2/+2
Pull networking fixes from Jakub Kicinski: "Quick follow up, to cleanly fast-forward net again. Current release - new code bugs: - Revert "net/mlx5e: Allow relaxed ordering over VFs" Previous releases - regressions: - seg6: fix seg6_lookup_any_nexthop() to handle VRFs using flowi_l3mdev Misc: - rename TLS_INFO_ZC_SENDFILE to better express the meaning" * tag 'net-5.19-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: net: seg6: fix seg6_lookup_any_nexthop() to handle VRFs using flowi_l3mdev nfp: flower: restructure flow-key for gre+vlan combination nfp: avoid unnecessary check warnings in nfp_app_get_vf_config tls: Rename TLS_INFO_ZC_SENDFILE to TLS_INFO_ZC_TX net/mlx5: fs, fail conflicting actions net/mlx5: Rearm the FW tracer after each tracer event net/mlx5: E-Switch, pair only capable devices net/mlx5e: CT: Fix cleanup of CT before cleanup of TC ct rules Revert "net/mlx5e: Allow relaxed ordering over VFs" MAINTAINERS: adjust MELLANOX ETHERNET INNOVA DRIVERS to TLS support removal
2022-06-10Merge tag 'for-linus-5.19a-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds8-9/+71
Pull xen updates from Juergen Gross: - a small cleanup removing "export" of an __init function - a small series adding a new infrastructure for platform flags - a series adding generic virtio support for Xen guests (frontend side) * tag 'for-linus-5.19a-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: unexport __init-annotated xen_xlate_map_ballooned_pages() arm/xen: Assign xen-grant DMA ops for xen-grant DMA devices xen/grant-dma-ops: Retrieve the ID of backend's domain for DT devices xen/grant-dma-iommu: Introduce stub IOMMU driver dt-bindings: Add xen,grant-dma IOMMU description for xen-grant DMA ops xen/virtio: Enable restricted memory access using Xen grant mappings xen/grant-dma-ops: Add option to restrict memory access under Xen xen/grants: support allocating consecutive grants arm/xen: Introduce xen_setup_dma_ops() virtio: replace arch_has_restricted_virtio_memory_access() kernel: add platform_has() infrastructure
2022-06-10random: remove rng_has_arch_random()Jason A. Donenfeld1-1/+0
With arch randomness being used by every distro and enabled in defconfigs, the distinction between rng_has_arch_random() and rng_is_initialized() is now rather small. In fact, the places where they differ are now places where paranoid users and system builders really don't want arch randomness to be used, in which case we should respect that choice, or places where arch randomness is known to be broken, in which case that choice is all the more important. So this commit just removes the function and its one user. Reviewed-by: Petr Mladek <pmladek@suse.com> # for vsprintf.c Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-06-10random: mark bootloader randomness code as __initJason A. Donenfeld1-1/+1
add_bootloader_randomness() and the variables it touches are only used during __init and not after, so mark these as __init. At the same time, unexport this, since it's only called by other __init code that's built-in. Cc: stable@vger.kernel.org Fixes: 428826f5358c ("fdt: add support for rng-seed") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-06-09tls: Rename TLS_INFO_ZC_SENDFILE to TLS_INFO_ZC_TXMaxim Mikityanskiy1-2/+2
To embrace possible future optimizations of TLS, rename zerocopy sendfile definitions to more generic ones: * setsockopt: TLS_TX_ZEROCOPY_SENDFILE- > TLS_TX_ZEROCOPY_RO * sock_diag: TLS_INFO_ZC_SENDFILE -> TLS_INFO_ZC_RO_TX RO stands for readonly and emphasizes that the application shouldn't modify the data being transmitted with zerocopy to avoid potential disconnection. Fixes: c1318b39c7d3 ("tls: Add opt-in zerocopy mode of sendfile()") Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com> Link: https://lore.kernel.org/r/20220608153425.3151146-1-maximmi@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-09netfs: Fix gcc-12 warning by embedding vfs inode in netfs_i_contextDavid Howells1-25/+16
While randstruct was satisfied with using an open-coded "void *" offset cast for the netfs_i_context <-> inode casting, __builtin_object_size() as used by FORTIFY_SOURCE was not as easily fooled. This was causing the following complaint[1] from gcc v12: In file included from include/linux/string.h:253, from include/linux/ceph/ceph_debug.h:7, from fs/ceph/inode.c:2: In function 'fortify_memset_chk', inlined from 'netfs_i_context_init' at include/linux/netfs.h:326:2, inlined from 'ceph_alloc_inode' at fs/ceph/inode.c:463:2: include/linux/fortify-string.h:242:25: warning: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Wattribute-warning] 242 | __write_overflow_field(p_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by embedding a struct inode into struct netfs_i_context (which should perhaps be renamed to struct netfs_inode). The struct inode vfs_inode fields are then removed from the 9p, afs, ceph and cifs inode structs and vfs_inode is then simply changed to "netfs.inode" in those filesystems. Further, rename netfs_i_context to netfs_inode, get rid of the netfs_inode() function that converted a netfs_i_context pointer to an inode pointer (that can now be done with &ctx->inode) and rename the netfs_i_context() function to netfs_inode() (which is now a wrapper around container_of()). Most of the changes were done with: perl -p -i -e 's/vfs_inode/netfs.inode/'g \ `git grep -l 'vfs_inode' -- fs/{9p,afs,ceph,cifs}/*.[ch]` Kees suggested doing it with a pair structure[2] and a special declarator to insert that into the network filesystem's inode wrapper[3], but I think it's cleaner to embed it - and then it doesn't matter if struct randomisation reorders things. Dave Chinner suggested using a filesystem-specific VFS_I() function in each filesystem to convert that filesystem's own inode wrapper struct into the VFS inode struct[4]. Version #2: - Fix a couple of missed name changes due to a disabled cifs option. - Rename nfs_i_context to nfs_inode - Use "netfs" instead of "nic" as the member name in per-fs inode wrapper structs. [ This also undoes commit 507160f46c55 ("netfs: gcc-12: temporarily disable '-Wattribute-warning' for now") that is no longer needed ] Fixes: bc899ee1c898 ("netfs: Add a netfs inode context") Reported-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Xiubo Li <xiubli@redhat.com> cc: Jonathan Corbet <corbet@lwn.net> cc: Eric Van Hensbergen <ericvh@gmail.com> cc: Latchesar Ionkov <lucho@ionkov.net> cc: Dominique Martinet <asmadeus@codewreck.org> cc: Christian Schoenebeck <linux_oss@crudebyte.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Ilya Dryomov <idryomov@gmail.com> cc: Steve French <smfrench@gmail.com> cc: William Kucharski <william.kucharski@oracle.com> cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> cc: Dave Chinner <david@fromorbit.com> cc: linux-doc@vger.kernel.org cc: v9fs-developer@lists.sourceforge.net cc: linux-afs@lists.infradead.org cc: ceph-devel@vger.kernel.org cc: linux-cifs@vger.kernel.org cc: samba-technical@lists.samba.org cc: linux-fsdevel@vger.kernel.org cc: linux-hardening@vger.kernel.org Link: https://lore.kernel.org/r/d2ad3a3d7bdd794c6efb562d2f2b655fb67756b9.camel@kernel.org/ [1] Link: https://lore.kernel.org/r/20220517210230.864239-1-keescook@chromium.org/ [2] Link: https://lore.kernel.org/r/20220518202212.2322058-1-keescook@chromium.org/ [3] Link: https://lore.kernel.org/r/20220524101205.GI2306852@dread.disaster.area/ [4] Link: https://lore.kernel.org/r/165296786831.3591209.12111293034669289733.stgit@warthog.procyon.org.uk/ # v1 Link: https://lore.kernel.org/r/165305805651.4094995.7763502506786714216.stgit@warthog.procyon.org.uk # v2 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-06-09mm: Add kernel-doc for folio->mlock_countMatthew Wilcox (Oracle)1-0/+5
Fix "./include/linux/mm_types.h:279: warning: Function parameter or member 'mlock_count' not described in 'folio'". Also neaten the html by hiding the anon struct. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-06-09mm/huge_memory: Fix xarray node memory leakMatthew Wilcox (Oracle)1-0/+1
If xas_split_alloc() fails to allocate the necessary nodes to complete the xarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem() then interprets as "Please allocate more memory", not as "Please free any unnecessary memory" (which was the intended outcome). It's confusing to use xas_nomem() to free memory in this context, so call xas_destroy() instead. Reported-by: syzbot+9e27a75a8c24f3fe75c1@syzkaller.appspotmail.com Fixes: 6b24ca4a1a8d ("mm: Use multi-index entries in the page cache") Cc: stable@vger.kernel.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-06-09Merge tag 'net-5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds4-4/+4
Pull networking fixes from Paolo Abeni: "Including fixes from bpf and netfilter. Current release - regressions: - eth: amt: fix possible null-ptr-deref in amt_rcv() Previous releases - regressions: - tcp: use alloc_large_system_hash() to allocate table_perturb - af_unix: fix a data-race in unix_dgram_peer_wake_me() - nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling - eth: ixgbe: fix unexpected VLAN rx in promisc mode on VF Previous releases - always broken: - ipv6: fix signed integer overflow in __ip6_append_data - netfilter: - nat: really support inet nat without l3 address - nf_tables: memleak flow rule from commit path - bpf: fix calling global functions from BPF_PROG_TYPE_EXT programs - openvswitch: fix misuse of the cached connection on tuple changes - nfc: nfcmrvl: fix memory leak in nfcmrvl_play_deferred - eth: altera: fix refcount leak in altera_tse_mdio_create Misc: - add Quentin Monnet to bpftool maintainers" * tag 'net-5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (45 commits) net: amd-xgbe: fix clang -Wformat warning tcp: use alloc_large_system_hash() to allocate table_perturb net: dsa: realtek: rtl8365mb: fix GMII caps for ports with internal PHY net: dsa: mv88e6xxx: correctly report serdes link failure net: dsa: mv88e6xxx: fix BMSR error to be consistent with others net: dsa: mv88e6xxx: use BMSR_ANEGCOMPLETE bit for filling an_complete net: altera: Fix refcount leak in altera_tse_mdio_create net: openvswitch: fix misuse of the cached connection on tuple changes net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag ip_gre: test csum_start instead of transport header au1000_eth: stop using virt_to_bus() ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg ipv6: Fix signed integer overflow in __ip6_append_data nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred nfc: st21nfca: fix incorrect sizing calculations in EVT_TRANSACTION nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling nfc: st21nfca: fix incorrect validating logic in EVT_TRANSACTION net: ipv6: unexport __init-annotated seg6_hmac_init() net: xfrm: unexport __init-annotated xfrm4_protocol_init() net: mdio: unexport __init-annotated mdio_bus_init() ...
2022-06-09firmware: sysfb: Add sysfb_disable() helper functionJavier Martinez Canillas1-0/+12
This can be used by subsystems to unregister a platform device registered by sysfb and also to disable future platform device registration in sysfb. Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220607182338.344270-3-javierm@redhat.com
2022-06-09firmware: sysfb: Make sysfb_create_simplefb() return a pdev pointerJavier Martinez Canillas1-5/+5
This function just returned 0 on success or an errno code on error, but it could be useful for sysfb_init() callers to have a pointer to the device. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220607182338.344270-2-javierm@redhat.com
2022-06-09vdpa: make get_vq_group and set_group_asid optionalJason Wang1-2/+3
This patch makes get_vq_group and set_group_asid optional. This is needed to unbreak the vDPA parent that doesn't support multiple address spaces. Cc: Gautam Dawar <gautam.dawar@xilinx.com> Fixes: aaca8373c4b1 ("vhost-vdpa: support ASID based IOTLB API") Signed-off-by: Jason Wang <jasowang@redhat.com> Message-Id: <20220609041901.2029-1-jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-06-08block: remove bioset_init_from_srcChristoph Hellwig1-1/+0
Unused now, and the interface never really made a whole lot of sense to start with. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-06-08ipv6: Fix signed integer overflow in __ip6_append_dataWang Yufen1-2/+2
Resurrect ubsan overflow checks and ubsan report this warning, fix it by change the variable [length] type to size_t. UBSAN: signed-integer-overflow in net/ipv6/ip6_output.c:1489:19 2147479552 + 8567 cannot be represented in type 'int' CPU: 0 PID: 253 Comm: err Not tainted 5.16.0+ #1 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x214/0x230 show_stack+0x30/0x78 dump_stack_lvl+0xf8/0x118 dump_stack+0x18/0x30 ubsan_epilogue+0x18/0x60 handle_overflow+0xd0/0xf0 __ubsan_handle_add_overflow+0x34/0x44 __ip6_append_data.isra.48+0x1598/0x1688 ip6_append_data+0x128/0x260 udpv6_sendmsg+0x680/0xdd0 inet6_sendmsg+0x54/0x90 sock_sendmsg+0x70/0x88 ____sys_sendmsg+0xe8/0x368 ___sys_sendmsg+0x98/0xe0 __sys_sendmmsg+0xf4/0x3b8 __arm64_sys_sendmmsg+0x34/0x48 invoke_syscall+0x64/0x160 el0_svc_common.constprop.4+0x124/0x300 do_el0_svc+0x44/0xc8 el0_svc+0x3c/0x1e8 el0t_64_sync_handler+0x88/0xb0 el0t_64_sync+0x16c/0x170 Changes since v1: -Change the variable [length] type to unsigned, as Eric Dumazet suggested. Changes since v2: -Don't change exthdrlen type in ip6_make_skb, as Paolo Abeni suggested. Changes since v3: -Don't change ulen type in udpv6_sendmsg and l2tp_ip6_sendmsg, as Jakub Kicinski suggested. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Yufen <wangyufen@huawei.com> Link: https://lore.kernel.org/r/20220607120028.845916-1-wangyufen@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-08SUNRPC: Optimize xdr_reserve_space()Chuck Lever1-1/+15
Transitioning between encode buffers is quite infrequent. It happens about 1 time in 400 calls to xdr_reserve_space(), measured on NFSD with a typical build/test workload. Force the compiler to remove that code from xdr_reserve_space(), which is a hot path on both the server and the client. This change reduces the size of xdr_reserve_space() from 10 cache lines to 2 when compiled with -Os. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: J. Bruce Fields <bfields@fieldses.org>
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