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2021-01-13xen: Set platform PCI device INTX affinity to CPU0David Woodhouse
With INTX or GSI delivery, Xen uses the event channel structures of CPU0. If the interrupt gets handled by Linux on a different CPU, then no events are seen as pending. Rather than introducing locking to allow other CPUs to process CPU0's events, just ensure that the PCI interrupts happens only on CPU0. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20210106153958.584169-3-dwmw2@infradead.org Signed-off-by: Juergen Gross <jgross@suse.com>
2021-01-13xen: Fix event channel callback via INTX/GSIDavid Woodhouse
For a while, event channel notification via the PCI platform device has been broken, because we attempt to communicate with xenstore before we even have notifications working, with the xs_reset_watches() call in xs_init(). We tend to get away with this on Xen versions below 4.0 because we avoid calling xs_reset_watches() anyway, because xenstore might not cope with reading a non-existent key. And newer Xen *does* have the vector callback support, so we rarely fall back to INTX/GSI delivery. To fix it, clean up a bit of the mess of xs_init() and xenbus_probe() startup. Call xs_init() directly from xenbus_init() only in the !XS_HVM case, deferring it to be called from xenbus_probe() in the XS_HVM case instead. Then fix up the invocation of xenbus_probe() to happen either from its device_initcall if the callback is available early enough, or when the callback is finally set up. This means that the hack of calling xenbus_probe() from a workqueue after the first interrupt, or directly from the PCI platform device setup, is no longer needed. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20210113132606.422794-2-dwmw2@infradead.org Signed-off-by: Juergen Gross <jgross@suse.com>
2021-01-13arm64: make atomic helpers __always_inlineArnd Bergmann
With UBSAN enabled and building with clang, there are occasionally warnings like WARNING: modpost: vmlinux.o(.text+0xc533ec): Section mismatch in reference from the function arch_atomic64_or() to the variable .init.data:numa_nodes_parsed The function arch_atomic64_or() references the variable __initdata numa_nodes_parsed. This is often because arch_atomic64_or lacks a __initdata annotation or the annotation of numa_nodes_parsed is wrong. for functions that end up not being inlined as intended but operating on __initdata variables. Mark these as __always_inline, along with the corresponding asm-generic wrappers. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210108092024.4034860-1-arnd@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-01-13arm64: rename S_FRAME_SIZE to PT_REGS_SIZEJianlin Lv
S_FRAME_SIZE is the size of the pt_regs structure, no longer the size of the kernel stack frame, the name is misleading. In keeping with arm32, rename S_FRAME_SIZE to PT_REGS_SIZE. Signed-off-by: Jianlin Lv <Jianlin.Lv@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20210112015813.2340969-1-Jianlin.Lv@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-01-13Revert "arm64: Enable perf events based hard lockup detector"Will Deacon
This reverts commit 367c820ef08082e68df8a3bc12e62393af21e4b5. lockup_detector_init() makes heavy use of per-cpu variables and must be called with preemption disabled. Usually, it's handled early during boot in kernel_init_freeable(), before SMP has been initialised. Since we do not know whether or not our PMU interrupt can be signalled as an NMI until considerably later in the boot process, the Arm PMU driver attempts to re-initialise the lockup detector off the back of a device_initcall(). Unfortunately, this is called from preemptible context and results in the following splat: | BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1 | caller is debug_smp_processor_id+0x20/0x2c | CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.10.0+ #276 | Hardware name: linux,dummy-virt (DT) | Call trace: | dump_backtrace+0x0/0x3c0 | show_stack+0x20/0x6c | dump_stack+0x2f0/0x42c | check_preemption_disabled+0x1cc/0x1dc | debug_smp_processor_id+0x20/0x2c | hardlockup_detector_event_create+0x34/0x18c | hardlockup_detector_perf_init+0x2c/0x134 | watchdog_nmi_probe+0x18/0x24 | lockup_detector_init+0x44/0xa8 | armv8_pmu_driver_init+0x54/0x78 | do_one_initcall+0x184/0x43c | kernel_init_freeable+0x368/0x380 | kernel_init+0x1c/0x1cc | ret_from_fork+0x10/0x30 Rather than bodge this with raw_smp_processor_id() or randomly disabling preemption, simply revert the culprit for now until we figure out how to do this properly. Reported-by: Lecopzer Chen <lecopzer.chen@mediatek.com> Signed-off-by: Will Deacon <will@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Sumit Garg <sumit.garg@linaro.org> Cc: Alexandru Elisei <alexandru.elisei@arm.com> Link: https://lore.kernel.org/r/20201221162249.3119-1-lecopzer.chen@mediatek.com Link: https://lore.kernel.org/r/20210112221855.10666-1-will@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-01-13genirq: Export irq_check_status_bit()Thomas Gleixner
One of the users can be built modular: ERROR: modpost: "irq_check_status_bit" [drivers/perf/arm_spe_pmu.ko] undefined! Fixes: fdd029630434 ("genirq: Move status flag checks to core") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201227192049.GA195845@roeck-us.net
2021-01-13SUNRPC: Move the svc_xdr_recvfrom tracepoint againChuck Lever
Commit 156708adf2d9 ("SUNRPC: Move the svc_xdr_recvfrom() tracepoint") tried to capture the correct XID in the trace record, but this line in svc_recv: rqstp->rq_xid = svc_getu32(&rqstp->rq_arg.head[0]); alters the size of rq_arg.head[0].iov_len. The tracepoint records the correct XID but an incorrect value for the length of the xdr_buf's head. To keep the trace callsites simple, I've created two trace classes. One assumes the xdr_buf contains a full RPC message, and the XID can be extracted from it. The other assumes the contents of the xdr_buf are arbitrary, and the xid will be provided by the caller. Currently there is only one user of each class, but I expect we will need a few more tracepoints using each class as time goes on. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2021-01-13drm: Move struct drm_device.hose to legacy sectionThomas Zimmermann
The field is only relevant for legacy DRM drivers. Its only non-legacy user in the DRM core is in drm_file.c. This code is now protected by CONFIG_DRM_LEGACY. Radeon, the only driver that used the field, has been changed to maintain it's own copy. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-7-tzimmermann@suse.de
2021-01-13drm/radeon: Store PCI controller in struct radeon_device.hoseThomas Zimmermann
Moves struct drm_device.hose into struct radeon_device. The field in struct DRM device is only for legacy drivers. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-6-tzimmermann@suse.de
2021-01-13drm: Merge CONFIG_DRM_VM into CONFIG_DRM_LEGACYThomas Zimmermann
CONFIG_DRM_VM gets selected by CONFIG_DRM_LEGACY, but nothing else. So remove it and build drm_vm.o as part of CONFIG_DRM_LEGACY. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-5-tzimmermann@suse.de
2021-01-13drm: Build drm_memory.o only for legacy driversThomas Zimmermann
The file contains I/O-memory functions that are only used by legacy drivers. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-4-tzimmermann@suse.de
2021-01-13drm: Implement drm_need_swiotlb() in drm_cache.cThomas Zimmermann
The function is declared in drm_cache.h. I also removed the curly braces from the for loop to adhere to kernel coding style. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-3-tzimmermann@suse.de
2021-01-13drm: Inline AGP wrappers into their only callersThomas Zimmermann
The AGP wrapper functions serve no purpose. They used to handle builds that have CONFIG_AGP unset. But their callers are all in drm_agpsupport.c, which only gets build with CONFIG_AGP. v2: * clarify CONFIG_AGP in commit description (Daniel) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-2-tzimmermann@suse.de
2021-01-13arm64: entry: remove redundant IRQ flag tracingMark Rutland
All EL0 returns go via ret_to_user(), which masks IRQs and notifies lockdep and tracing before calling into do_notify_resume(). Therefore, there's no need for do_notify_resume() to call trace_hardirqs_off(), and the comment is stale. The call is simply redundant. In ret_to_user() we call exit_to_user_mode(), which notifies lockdep and tracing the IRQs will be enabled in userspace, so there's no need for el0_svc_common() to call trace_hardirqs_on() before returning. Further, at the start of ret_to_user() we call trace_hardirqs_off(), so not only is this redundant, but it is immediately undone. In addition to being redundant, the trace_hardirqs_on() in el0_svc_common() leaves lockdep inconsistent with the hardware state, and is liable to cause issues for any C code or instrumentation between this and the call to trace_hardirqs_off() which undoes it in ret_to_user(). This patch removes the redundant tracing calls and associated stale comments. Fixes: 23529049c684 ("arm64: entry: fix non-NMI user<->kernel transitions") Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Will Deacon <will@kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210107145310.44616-1-mark.rutland@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-01-13drm/vc4: Move mmap implementation into GEM object functionThomas Zimmermann
Moving vc4's mmap code from vc4_mmap() into a GEM object function allows for the use drm_gem_mmap() and drm_gem_prime_mmap(). The content of vc4_drm_fpos can then be generated by DEFINE_DRM_GEM_FOPS(). The actual mmap implementation is just a check if the BO is a validated shader plus the default CMA mmap code. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210108140808.25775-4-tzimmermann@suse.de
2021-01-13drm/vc4: Make several BO functions staticThomas Zimmermann
Rearrange the code to make BO functions static. This will also help with streamlining the BO's mmap implementation. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210108140808.25775-3-tzimmermann@suse.de
2021-01-13drm/vc4: Use drm_gem_cma_vmap() directlyThomas Zimmermann
Validated shaders cannot be exported. There's no need for testing this in the BO's vmap implementation. Call drm_gem_cma_vmap() directly instead. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210108140808.25775-2-tzimmermann@suse.de
2021-01-13MAINTAINERS: update references to stm32 audio bindingsMauro Carvalho Chehab
Changeset 81437cc3b0d9 ("Merge series "dt-bindings: stm32: convert audio dfsdm to json-schema" from Olivier Moysan <olivier.moysan@st.com>:") removed bindings/sound/st,stm32-adfsdm.txt, as stm32-* audio bindings are now under: bindings/iio/adc/st,stm32-*.yaml. Update cross-references to them accordingly. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/03950bbd5cf7bac10eaaff3725e283d3ec2538c5.1610536535.git.mchehab+huawei@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2021-01-13xen/privcmd: allow fetching resource sizesRoger Pau Monne
Allow issuing an IOCTL_PRIVCMD_MMAP_RESOURCE ioctl with num = 0 and addr = 0 in order to fetch the size of a specific resource. Add a shortcut to the default map resource path, since fetching the size requires no address to be passed in, and thus no VMA to setup. This is missing from the initial implementation, and causes issues when mapping resources that don't have fixed or known sizes. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Juergen Gross <jgross@suse.com> Tested-by: Andrew Cooper <andrew.cooper3@citrix.com> Cc: stable@vger.kernel.org # >= 4.18 Link: https://lore.kernel.org/r/20210112115358.23346-1-roger.pau@citrix.com Signed-off-by: Juergen Gross <jgross@suse.com>
2021-01-13drm/i915/guc: stop calling execlists_set_default_submissionDaniele Ceraolo Spurio
Initialize all required entries from guc_set_default_submission, instead of calling the execlists function. The previously inherited setup has been copied over from the execlist code and simplified by removing the execlists submission-specific parts. v2: move setting of relative_mmio flag to engine_setup_common (Chris) Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: John Harrison <john.c.harrison@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> #v1 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20210113021236.8164-5-daniele.ceraolospurio@intel.com
2021-01-13drm/i915/guc: init engine directly in GuC submission modeDaniele Ceraolo Spurio
Instead of starting the engine in execlists submission mode and then switching to GuC, start directly in GuC submission mode. The initial setup functions have been copied over from the execlists code and simplified by removing the execlists submission-specific parts. v2: remove unneeded unexpected starting state check (Chris) Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: John Harrison <john.c.harrison@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20210113021236.8164-4-daniele.ceraolospurio@intel.com
2021-01-13drm/i915/guc: do not dump execlists state with GuC submissionDaniele Ceraolo Spurio
GuC owns the execlists state and the context IDs used for submission, so the status of the ports and the CSB entries are not something we control or can decode from the i915 side, therefore we can avoid dumping it. A follow-up patch will also stop setting the csb pointers when using GuC submission. GuC dumps all the required events in the GuC logs when verbosity is set high enough. Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: John Harrison <John.C.Harrison@Intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20210113021236.8164-3-daniele.ceraolospurio@intel.com
2021-01-13drm/i915/guc: Delete GuC code unused in future patchesMatthew Brost
Delete GuC code unused in future patches that rewrite the GuC interface to work with the new firmware. Most of the code deleted relates to workqueues or execlist port. The code is safe to remove because we still don't allow GuC submission to be enabled, even when overriding the modparam, so it currently can't be reached. The defines + structs for the process descriptor and workqueue remain. Although the new GuC interface does not require either of these for the normal submission path multi-lrc submission does. The usage of the process descriptor and workqueue for multi-lrc will be quite different from the code that is deleted in this patch. A future patch will implement multi-lrc submission. v2: add a code in the commit message about the code being safe to remove (Chris) Signed-off-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: John Harrison <john.c.harrison@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20210113021236.8164-2-daniele.ceraolospurio@intel.com
2021-01-13mmc: sdhci-brcmstb: Fix mmc timeout errors on S5 suspendAl Cooper
Commit e7b5d63a82fe ("mmc: sdhci-brcmstb: Add shutdown callback") that added a shutdown callback to the diver, is causing "mmc timeout" errors on S5 suspend. The problem was that the "remove" was queuing additional MMC commands after the "shutdown" and these caused timeouts as the MMC queues were cleaned up for "remove". The shutdown callback will be changed to calling sdhci-pltfm_suspend which should get better power savings because the clocks will be shutdown. Fixes: e7b5d63a82fe ("mmc: sdhci-brcmstb: Add shutdown callback") Signed-off-by: Al Cooper <alcooperx@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210107221509.6597-1-alcooperx@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-01-13platform/x86: ideapad-laptop: Disable touchpad_switch for ELAN0634Jiaxun Yang
Newer ideapads (e.g.: Yoga 14s, 720S 14) come with ELAN0634 touchpad do not use EC to switch touchpad. Reading VPCCMD_R_TOUCHPAD will return zero thus touchpad may be blocked unexpectedly. Writing VPCCMD_W_TOUCHPAD may cause a spurious key press. Add has_touchpad_switch to workaround these machines. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: stable@vger.kernel.org # 5.4+ -- v2: Specify touchpad to ELAN0634 v3: Stupid missing ! in v2 v4: Correct acpi_dev_present usage (Hans) Link: https://lore.kernel.org/r/20210107144438.12605-1-jiaxun.yang@flygoat.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-01-13MIPS: OCTEON: fix unreachable code in octeon_irq_init_ciuMenglong Dong
The type of 'r' in octeon_irq_init_ciu is 'unsigned int', so 'r < 0' can't be true. Fix this by change the type of 'r' and 'i' from 'unsigned int' to 'int'. As 'i' won't be negative, this change works. Fixes: 99fbc70f8547 ("MIPS: Octeon: irq: Alloc desc before configuring IRQ") Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-01-13MIPS: relocatable: fix possible boot hangup with KASLR enabledAlexander Lobakin
LLVM-built Linux triggered a boot hangup with KASLR enabled. arch/mips/kernel/relocate.c:get_random_boot() uses linux_banner, which is a string constant, as a random seed, but accesses it as an array of unsigned long (in rotate_xor()). When the address of linux_banner is not aligned to sizeof(long), such access emits unaligned access exception and hangs the kernel. Use PTR_ALIGN() to align input address to sizeof(long) and also align down the input length to prevent possible access-beyond-end. Fixes: 405bc8fd12f5 ("MIPS: Kernel: Implement KASLR using CONFIG_RELOCATABLE") Cc: stable@vger.kernel.org # 4.7+ Signed-off-by: Alexander Lobakin <alobakin@pm.me> Tested-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-01-13Merge tag 'misc-habanalabs-fixes-2021-01-13' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-linus Oded writes: This tag contains the following bug fixes: - Fix the dma address that is passed to dma_mmap_coherent. We passed an address that includes an offset that is needed by our device and that caused dma_mmap_coherent to do an errounous mapping. - Fix the reset process in case failures happen during the reset process. Without this fix, if the user would have asked to perform reset after the previous reset failed he would get a kernel panic - WA to prevent soft lockup BUG during unmap of host memory. In case of tens of thousands of mappings, the unmapping can take a long time that exceeds the soft lockup timeout. This WA adds a small sleep every 32K page unmappings to prevent that. * tag 'misc-habanalabs-fixes-2021-01-13' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: habanalabs: prevent soft lockup during unmap habanalabs: fix reset process in case of failures habanalabs: fix dma_addr passed to dma_mmap_coherent
2021-01-13drm/sun4i: Add support for BT2020 to DE3Jernej Skrabec
DE3 supports 10-bit formats, so it's only naturally to also support BT2020 encoding. Add support for it. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210110201947.3611649-4-jernej.skrabec@siol.net
2021-01-13drm/sun4i: de2/de3: Remove redundant CSC matricesJernej Skrabec
YUV to RGB matrices are almost identical to YVU to RGB matrices. They only have second and third column reversed. Do that reversion in code in order to lower amount of static data and redundancy. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210110201947.3611649-3-jernej.skrabec@siol.net
2021-01-13drm/sun4i: csc: Rework DE3 CSC macrosJernej Skrabec
Rework DE3 CSC macros to take just one coordinate instead of two. This will make its usage easier in subsequent commit. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210110201947.3611649-2-jernej.skrabec@siol.net
2021-01-13video: omapfb2: Make standard and custom DSI command mode panel driver ↵Sebastian Reichel
mutually exclusive Standard DRM panel driver for DSI command mode panel used by omapfb2 is also available now. Just like the other panels its module name clashes with the module from drivers/video/fbdev/omap2/omapfb/displays, part of the deprecated omapfb2 fbdev driver. As omapfb2 can only be compiled when the omapdrm driver is disabled, and the DRM panel drivers are useless in that case, make the omapfb2 panel depend on the standard DRM panels being disabled to fix the name clash. Fixes: cf64148abcfd ("drm/panel: Move OMAP's DSI command mode panel driver") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210108112441.14609-1-sebastian.reichel@collabora.com
2021-01-13drm/nouveau: Remove references to struct drm_device.pdevThomas Zimmermann
Using struct drm_device.pdev is deprecated. Convert nouveau to struct drm_device.dev. No functional changes. v3: * fix nv04_dfp_update_backlight() as well (Jeremy) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jeremy Cline <jcline@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210107080748.4768-8-tzimmermann@suse.de
2021-01-13drm/hibmc: Remove references to struct drm_device.pdevThomas Zimmermann
Using struct drm_device.pdev is deprecated. Convert hibmc to struct drm_device.dev. No functional changes. v3: * rebased Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Tian Tao <tiantao6@hisilicon.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Tian Tao <tiantao6@hisilicon.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Cc: Chen Feng <puck.chen@hisilicon.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210107080748.4768-4-tzimmermann@suse.de
2021-01-13drm/amdgpu: Remove references to struct drm_device.pdevThomas Zimmermann
Using struct drm_device.pdev is deprecated. Convert amdgpu to struct drm_device.dev. No functional changes. v3: * rebased Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210107080748.4768-3-tzimmermann@suse.de
2021-01-13drm/amdgpu: Fix trailing whitespacesThomas Zimmermann
Adhere to kernel coding style. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210107080748.4768-2-tzimmermann@suse.de
2021-01-12riscv: Fixup CONFIG_GENERIC_TIME_VSYSCALLGuo Ren
The patch fix commit: ad5d112 ("riscv: use vDSO common flow to reduce the latency of the time-related functions"). The GENERIC_TIME_VSYSCALL should be CONFIG_GENERIC_TIME_VSYSCALL or vgettimeofday won't work. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Reviewed-by: Pekka Enberg <penberg@kernel.org> Fixes: ad5d1122b82f ("riscv: use vDSO common flow to reduce the latency of the time-related functions") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-12scsi: fnic: Fix memleak in vnic_dev_init_devcmd2Dinghao Liu
When ioread32() returns 0xFFFFFFFF, we should execute cleanup functions like other error handling paths before returning. Link: https://lore.kernel.org/r/20201225083520.22015-1-dinghao.liu@zju.edu.cn Acked-by: Karan Tilak Kumar <kartilak@cisco.com> Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-12riscv: cacheinfo: Fix using smp_processor_id() in preemptibleKefeng Wang
Use raw_smp_processor_id instead of smp_processor_id() to fix warning, BUG: using smp_processor_id() in preemptible [00000000] code: init/1 caller is debug_smp_processor_id+0x1c/0x26 CPU: 0 PID: 1 Comm: init Not tainted 5.10.0-rc4 #211 Call Trace: walk_stackframe+0x0/0xaa show_stack+0x32/0x3e dump_stack+0x76/0x90 check_preemption_disabled+0xaa/0xac debug_smp_processor_id+0x1c/0x26 get_cache_size+0x18/0x68 load_elf_binary+0x868/0xece bprm_execve+0x224/0x498 kernel_execve+0xdc/0x142 run_init_process+0x90/0x9e try_to_run_init_process+0x12/0x3c kernel_init+0xb4/0xf8 ret_from_exception+0x0/0xc The issue is found when CONFIG_DEBUG_PREEMPT enabled. Reviewed-by: Atish Patra <atish.patra@wdc.com> Tested-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> [Palmer: Added a comment.] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfJakub Kicinski
Pablo Neira Ayuso says: ==================== Netfilter fixes for net 1) Pass conntrack -f to specify family in netfilter conntrack helper selftests, from Chen Yi. 2) Honor hashsize modparam from nf_conntrack_buckets sysctl, from Jesper D. Brouer. 3) Fix memleak in nf_nat_init() error path, from Dinghao Liu. * git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf: netfilter: nf_nat: Fix memleak in nf_nat_init netfilter: conntrack: fix reading nf_conntrack_buckets selftests: netfilter: Pass family parameter "-f" to conntrack tool ==================== Link: https://lore.kernel.org/r/20210112222033.9732-1-pablo@netfilter.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-12Merge branch 'net-smc-fix-out-of-bound-access-in-netlink-interface'Jakub Kicinski
Karsten Graul says: ==================== net/smc: fix out of bound access in netlink interface Both patches fix possible out-of-bounds reads. The original code expected that snprintf() reads len-1 bytes from source and appends the terminating null, but actually snprintf() first copies len bytes and finally overwrites the last byte with a null. Fix this by using memcpy() and terminating the string afterwards. ==================== Link: https://lore.kernel.org/r/20210112162122.26832-1-kgraul@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-12net/smc: use memcpy instead of snprintf to avoid out of bounds readGuvenc Gulce
Using snprintf() to convert not null-terminated strings to null terminated strings may cause out of bounds read in the source string. Therefore use memcpy() and terminate the target string with a null afterwards. Fixes: a3db10efcc4c ("net/smc: Add support for obtaining SMCR device list") Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-12smc: fix out of bound access in smc_nl_get_sys_info()Jakub Kicinski
smc_clc_get_hostname() sets the host pointer to a buffer which is not NULL-terminated (see smc_clc_init()). Reported-by: syzbot+f4708c391121cfc58396@syzkaller.appspotmail.com Fixes: 099b990bd11a ("net/smc: Add support for obtaining system information") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-12riscv: Trace irq on only interrupt is enabledAtish Patra
We should call irq trace only if interrupt is going to be enabled during excecption handling. Otherwise, it results in following warning during boot with lock debugging enabled. [ 0.000000] ------------[ cut here ]------------ [ 0.000000] DEBUG_LOCKS_WARN_ON(early_boot_irqs_disabled) [ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/locking/lockdep.c:4085 lockdep_hardirqs_on_prepare+0x22a/0x22e [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.10.0-00022-ge20097fb37e2-dirty #548 [ 0.000000] epc: c005d5d4 ra : c005d5d4 sp : c1c01e80 [ 0.000000] gp : c1d456e0 tp : c1c0a980 t0 : 00000000 [ 0.000000] t1 : ffffffff t2 : 00000000 s0 : c1c01ea0 [ 0.000000] s1 : c100f360 a0 : 0000002d a1 : c00666ee [ 0.000000] a2 : 00000000 a3 : 00000000 a4 : 00000000 [ 0.000000] a5 : 00000000 a6 : c1c6b390 a7 : 3ffff00e [ 0.000000] s2 : c2384fe8 s3 : 00000000 s4 : 00000001 [ 0.000000] s5 : c1c0a980 s6 : c1d48000 s7 : c1613b4c [ 0.000000] s8 : 00000fff s9 : 80000200 s10: c1613b40 [ 0.000000] s11: 00000000 t3 : 00000000 t4 : 00000000 [ 0.000000] t5 : 00000001 t6 : 00000000 Fixes: 3c4697982982 ("riscv:Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT") Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-12Merge branch 'mptcp-a-couple-of-fixes'Jakub Kicinski
Paolo Abeni says: ==================== mptcp: a couple of fixes This series includes two related fixes addressing potential divide by 0 bugs in the MPTCP datapath. ==================== Link: https://lore.kernel.org/r/cover.1610471474.git.pabeni@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-12mptcp: better msk-level shutdown.Paolo Abeni
Instead of re-implementing most of inet_shutdown, re-use such helper, and implement the MPTCP-specific bits at the 'proto' level. The msk-level disconnect() can now be invoked, lets provide a suitable implementation. As a side effect, this fixes bad state management for listener sockets. The latter could lead to division by 0 oops since commit ea4ca586b16f ("mptcp: refine MPTCP-level ack scheduling"). Fixes: 43b54c6ee382 ("mptcp: Use full MPTCP-level disconnect state machine") Fixes: ea4ca586b16f ("mptcp: refine MPTCP-level ack scheduling") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-12mptcp: more strict state checking for acksPaolo Abeni
Syzkaller found a way to trigger division by zero in mptcp_subflow_cleanup_rbuf(). The current checks implemented into tcp_can_send_ack() are too week, let's be more accurate. Reported-by: Christoph Paasch <cpaasch@apple.com> Fixes: ea4ca586b16f ("mptcp: refine MPTCP-level ack scheduling") Fixes: fd8976790a6c ("mptcp: be careful on MPTCP-level ack.") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-12scsi: libfc: Avoid invoking response handler twice if ep is already completedJaved Hasan
A race condition exists between the response handler getting called because of exchange_mgr_reset() (which clears out all the active XIDs) and the response we get via an interrupt. Sequence of events: rport ba0200: Port timeout, state PLOGI rport ba0200: Port entered PLOGI state from PLOGI state xid 1052: Exchange timer armed : 20000 msecs  xid timer armed here rport ba0200: Received LOGO request while in state PLOGI rport ba0200: Delete port rport ba0200: work event 3 rport ba0200: lld callback ev 3 bnx2fc: rport_event_hdlr: event = 3, port_id = 0xba0200 bnx2fc: ba0200 - rport not created Yet!! /* Here we reset any outstanding exchanges before freeing rport using the exch_mgr_reset() */ xid 1052: Exchange timer canceled /* Here we got two responses for one xid */ xid 1052: invoking resp(), esb 20000000 state 3 xid 1052: invoking resp(), esb 20000000 state 3 xid 1052: fc_rport_plogi_resp() : ep->resp_active 2 xid 1052: fc_rport_plogi_resp() : ep->resp_active 2 Skip the response if the exchange is already completed. Link: https://lore.kernel.org/r/20201215194731.2326-1-jhasan@marvell.com Signed-off-by: Javed Hasan <jhasan@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-12Merge branch 'bnxt_en-bug-fixes'Jakub Kicinski
Michael Chan says: ==================== bnxt_en: Bug fixes. This series has 2 fixes. The first one fixes a resource accounting error with the RDMA driver loaded and the second one fixes the firmware flashing sequence after defragmentation. ==================== Link: https://lore.kernel.org/r/1610357200-30755-1-git-send-email-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-12bnxt_en: Clear DEFRAG flag in firmware message when retry flashing.Pavan Chebbi
When the FW tells the driver to retry the INSTALL_UPDATE command after it has cleared the NVM area, the driver is not clearing the previously used ALLOWED_TO_DEFRAG flag. As a result the FW tries to defrag the NVM area a second time in a loop and can fail the request. Fixes: 1432c3f6a6ca ("bnxt_en: Retry installing FW package under NO_SPACE error condition.") Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-15 01:10:21 +0000