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2019-10-12Merge tag 'mips_fixes_5.4_2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Paul Burton: - Build fixes for CONFIG_OPTIMIZE_INLINING=y builds in which the compiler may choose not to inline __xchg() & __cmpxchg(). - A build fix for Loongson configurations with GCC 9.x. - Expose some extra HWCAP bits to indicate support for various instruction set extensions to userland. - Fix bad stack access in firmware handling code for old SNI RM200/300/400 machines. * tag 'mips_fixes_5.4_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: Disable Loongson MMI instructions for kernel build MIPS: elf_hwcap: Export userspace ASEs MIPS: fw: sni: Fix out of bounds init of o32 stack MIPS: include: Mark __xchg as __always_inline MIPS: include: Mark __cmpxchg as __always_inline
2019-10-12Merge tag 'powerpc-5.4-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Fix a kernel crash in spufs_create_root() on Cell machines, since the new mount API went in. Fix a regression in our KVM code caused by our recent PCR changes. Avoid a warning message about a failing hypervisor API on systems that don't have that API. A couple of minor build fixes. Thanks to: Alexey Kardashevskiy, Alistair Popple, Desnes A. Nunes do Rosario, Emmanuel Nicolet, Jordan Niethe, Laurent Dufour, Stephen Rothwell" * tag 'powerpc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: spufs: fix a crash in spufs_create_root() powerpc/kvm: Fix kvmppc_vcore->in_guest value in kvmhv_switch_to_host selftests/powerpc: Fix compile error on tlbie_test due to newer gcc powerpc/pseries: Remove confusing warning message. powerpc/64s/radix: Fix build failure with RADIX_MMU=n
2019-10-12Merge tag 'for-linus-5.4-rc3-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: - correct panic handling when running as a Xen guest - cleanup the Xen grant driver to remove printing a pointer being always NULL - remove a soon to be wrong call of of_dma_configure() * tag 'for-linus-5.4-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: Stop abusing DT of_dma_configure API xen/grant-table: remove unnecessary printing x86/xen: Return from panic notifier
2019-10-12Merge tag 's390-5.4-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Fix virtio-ccw DMA regression - Fix compiler warnings in uaccess * tag 's390-5.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/uaccess: avoid (false positive) compiler warnings s390/cio: fix virtio-ccw DMA without PV
2019-10-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Alexei Starovoitov says: ==================== pull-request: bpf 2019-10-12 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) a bunch of small fixes. Nothing critical. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-12perf/x86/cstate: Add Tiger Lake CPU supportKan Liang
Tiger Lake is the followon to Ice Lake. From the perspective of Intel cstate residency counters, there is nothing changed compared with Ice Lake. Share icl_cstates with Ice Lake. Update the comments for Tiger Lake. The External Design Specification (EDS) is not published yet. It comes from an authoritative internal source. The patch has been tested on real hardware. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1570549810-25049-10-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-12perf/x86/msr: Add Tiger Lake CPU supportKan Liang
Tiger Lake is the followon to Ice Lake. PPERF and SMI_COUNT MSRs are also supported. The External Design Specification (EDS) is not published yet. It comes from an authoritative internal source. The patch has been tested on real hardware. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1570549810-25049-9-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-12perf/x86/intel: Add Tiger Lake CPU supportKan Liang
Tiger Lake is the followon to Ice Lake. From the perspective of Intel core PMU, there is little changes compared with Ice Lake, e.g. small changes in event list. But it doesn't impact on core PMU functionality. Share the perf code with Ice Lake. The event list patch will be submitted later separately. The patch has been tested on real hardware. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1570549810-25049-8-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-12perf/x86/cstate: Update C-state counters for Ice LakeKan Liang
There is no Core C3 C-State counter for Ice Lake. Package C8/C9/C10 C-State counters are added for Ice Lake. Introduce a new event list, icl_cstates, for Ice Lake. Update the comments accordingly. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: f08c47d1f86c ("perf/x86/intel/cstate: Add Icelake support") Link: https://lkml.kernel.org/r/1570549810-25049-7-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-12perf/x86/msr: Add new CPU model numbers for Ice LakeKan Liang
PPERF and SMI_COUNT MSRs are also supported by Ice Lake desktop and server. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1570549810-25049-6-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-12perf/x86/cstate: Add Comet Lake CPU supportKan Liang
Comet Lake is the new 10th Gen Intel processor. From the perspective of Intel cstate residency counters, there is nothing changed compared with Kaby Lake. Share hswult_cstates with Kaby Lake. Update the comments for Comet Lake. Kaby Lake is missed in the comments for some Residency Counters. Update the comments for Kaby Lake as well. The External Design Specification (EDS) is not published yet. It comes from an authoritative internal source. The patch has been tested on real hardware. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1570549810-25049-5-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-12perf/x86/msr: Add Comet Lake CPU supportKan Liang
Comet Lake is the new 10th Gen Intel processor. PPERF and SMI_COUNT MSRs are also supported. The External Design Specification (EDS) is not published yet. It comes from an authoritative internal source. The patch has been tested on real hardware. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1570549810-25049-4-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-12perf/x86/intel: Add Comet Lake CPU supportKan Liang
Comet Lake is the new 10th Gen Intel processor. From the perspective of Intel PMU, there is nothing changed compared with Sky Lake. Share the perf code with Sky Lake. The patch has been tested on real hardware. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1570549810-25049-3-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-12Merge branch 'x86/urgent' into perf/urgent, to pick up new CPU model definitionsIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-11rxrpc: Fix possible NULL pointer access in ICMP handlingDavid Howells
If an ICMP packet comes in on the UDP socket backing an AF_RXRPC socket as the UDP socket is being shut down, rxrpc_error_report() may get called to deal with it after sk_user_data on the UDP socket has been cleared, leading to a NULL pointer access when this local endpoint record gets accessed. Fix this by just returning immediately if sk_user_data was NULL. The oops looks like the following: #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page ... RIP: 0010:rxrpc_error_report+0x1bd/0x6a9 ... Call Trace: ? sock_queue_err_skb+0xbd/0xde ? __udp4_lib_err+0x313/0x34d __udp4_lib_err+0x313/0x34d icmp_unreach+0x1ee/0x207 icmp_rcv+0x25b/0x28f ip_protocol_deliver_rcu+0x95/0x10e ip_local_deliver+0xe9/0x148 __netif_receive_skb_one_core+0x52/0x6e process_backlog+0xdc/0x177 net_rx_action+0xf9/0x270 __do_softirq+0x1b6/0x39a ? smpboot_register_percpu_thread+0xce/0xce run_ksoftirqd+0x1d/0x42 smpboot_thread_fn+0x19e/0x1b3 kthread+0xf1/0xf6 ? kthread_delayed_work_timer_fn+0x83/0x83 ret_from_fork+0x24/0x30 Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both") Reported-by: syzbot+611164843bd48cc2190c@syzkaller.appspotmail.com Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-11drm/amdgpu/sdma5: fix mask value of POLL_REGMEM packet for pipe syncXiaojie Yuan
sdma will hang once sequence number to be polled reaches 0x1000_0000 Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2019-10-11drm/amdgpu: Bail earlier when amdgpu.cik_/si_support is not set to 1Hans de Goede
Bail from the pci_driver probe function instead of from the drm_driver load function. This avoid /dev/dri/card0 temporarily getting registered and then unregistered again, sending unwanted add / remove udev events to userspace. Specifically this avoids triggering the (userspace) bug fixed by this plymouth merge-request: https://gitlab.freedesktop.org/plymouth/plymouth/merge_requests/59 Note that despite that being a userspace bug, not sending unnecessary udev events is a good idea in general. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1490490 Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2019-10-11Revert "drm/radeon: Fix EEH during kexec"Alex Deucher
This reverts commit 6f7fe9a93e6c09bf988c5059403f5f88e17e21e6. This breaks some boards. Maybe just enable this on PPC for now? Bug: https://bugzilla.kernel.org/show_bug.cgi?id=205147 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2019-10-11Input: synaptics-rmi4 - avoid processing unknown IRQsEvan Green
rmi_process_interrupt_requests() calls handle_nested_irq() for each interrupt status bit it finds. If the irq domain mapping for this bit had not yet been set up, then it ends up calling handle_nested_irq(0), which causes a NULL pointer dereference. There's already code that masks the irq_status bits coming out of the hardware with current_irq_mask, presumably to avoid this situation. However current_irq_mask seems to more reflect the actual mask set in the hardware rather than the IRQs software has set up and registered for. For example, in rmi_driver_reset_handler(), the current_irq_mask is initialized based on what is read from the hardware. If the reset value of this mask enables IRQs that Linux has not set up yet, then we end up in this situation. There appears to be a third unused bitmask that used to serve this purpose, fn_irq_bits. Use that bitmask instead of current_irq_mask to avoid calling handle_nested_irq() on IRQs that have not yet been set up. Signed-off-by: Evan Green <evgreen@chromium.org> Reviewed-by: Andrew Duggan <aduggan@synaptics.com> Link: https://lore.kernel.org/r/20191008223657.163366-1-evgreen@chromium.org Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-11Merge tag 'nfs-for-5.4-2' of git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds
Pull NFS client bugfixes from Anna Schumaker: "Stable bugfixes: - Fix O_DIRECT accounting of number of bytes read/written # v4.1+ Other fixes: - Fix nfsi->nrequests count error on nfs_inode_remove_request() - Remove redundant mirror tracking in O_DIRECT - Fix leak of clp->cl_acceptor string - Fix race to sk_err after xs_error_report" * tag 'nfs-for-5.4-2' of git://git.linux-nfs.org/projects/anna/linux-nfs: SUNRPC: fix race to sk_err after xs_error_report NFSv4: Fix leak of clp->cl_acceptor string NFS: Remove redundant mirror tracking in O_DIRECT NFS: Fix O_DIRECT accounting of number of bytes read/written nfs: Fix nfsi->nrequests count error on nfs_inode_remove_request
2019-10-11Merge tag '5.4-rc2-smb3' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs fixes from Steve French: "Eight small SMB3 fixes, four for stable, and important fix for the recent regression introduced by filesystem timestamp range patches" * tag '5.4-rc2-smb3' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Force reval dentry if LOOKUP_REVAL flag is set CIFS: Force revalidate inode when dentry is stale smb3: Fix regression in time handling smb3: remove noisy debug message and minor cleanup CIFS: Gracefully handle QueryInfo errors during open cifs: use cifsInodeInfo->open_file_lock while iterating to avoid a panic fs: cifs: mute -Wunused-const-variable message smb3: cleanup some recent endian errors spotted by updated sparse
2019-10-11drm/msm/dsi: Implement reset correctlyJeffrey Hugo
On msm8998, vblank timeouts are observed because the DSI controller is not reset properly, which ends up stalling the MDP. This is because the reset logic is not correct per the hardware documentation. The documentation states that after asserting reset, software should wait some time (no indication of how long), or poll the status register until it returns 0 before deasserting reset. wmb() is insufficient for this purpose since it just ensures ordering, not timing between writes. Since asserting and deasserting reset occurs on the same register, ordering is already guaranteed by the architecture, making the wmb extraneous. Since we would define a timeout for polling the status register to avoid a possible infinite loop, lets just use a static delay of 20 ms, since 16.666 ms is the time available to process one frame at 60 fps. Fixes: a689554ba6ed ("drm/msm: Initial add DSI connector support") Cc: Hai Li <hali@codeaurora.org> Cc: Rob Clark <robdclark@gmail.com> Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Reviewed-by: Sean Paul <sean@poorly.run> [seanpaul renamed RESET_DELAY to DSI_RESET_TOGGLE_DELAY_MS] Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191011133939.16551-1-jeffrey.l.hugo@gmail.com
2019-10-11Merge tag 'modules-for-v5.4-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull module fixes from Jessica Yu: "Code cleanups and kbuild/namespace related fixups from Masahiro. Most importantly, it fixes a namespace-related modpost issue for external module builds - Fix broken external module builds due to a modpost bug in read_dump(), where the namespace was not being strdup'd and sym->namespace would be set to bogus data. - Various namespace-related kbuild fixes and cleanups thanks to Masahiro Yamada" * tag 'modules-for-v5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: doc: move namespaces.rst from kbuild/ to core-api/ nsdeps: make generated patches independent of locale nsdeps: fix hashbang of scripts/nsdeps kbuild: fix build error of 'make nsdeps' in clean tree module: rename __kstrtab_ns_* to __kstrtabns_* to avoid symbol conflict modpost: fix broken sym->namespace for external module builds module: swap the order of symbol.namespace scripts: add_namespace: Fix coccicheck failed
2019-10-11Merge tag 'hyperv-fixes-signed' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull Hyper-V fixes from Sasha Levin: "Two fixes from Dexuan Cui: - Fix a (harmless) warning when building vmbus without CONFIG_PM_SLEEP - Fix for a memory leak (and optimization) in the hyperv mouse code" * tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: Drivers: hv: vmbus: Fix harmless building warnings without CONFIG_PM_SLEEP HID: hyperv: Use in-place iterator API in the channel callback
2019-10-11arm64: Fix kcore macros after 52-bit virtual addressing falloutChris von Recklinghausen
We export the entire kernel address space (i.e. the whole of the TTBR1 address range) via /proc/kcore. The kc_vaddr_to_offset() and kc_offset_to_vaddr() macros are intended to convert between a kernel virtual address and its offset relative to the start of the TTBR1 address space. Prior to commit: 14c127c957c1c607 ("arm64: mm: Flip kernel VA space") ... the offset was calculated relative to VA_START, which at the time was the start of the TTBR1 address space. At this time, PAGE_OFFSET pointed to the high half of the TTBR1 address space where arm64's linear map lived. That commit swapped the position of VA_START and PAGE_OFFSET, but failed to update kc_vaddr_to_offset() or kc_offset_to_vaddr(), so since then the two macros behave incorrectly. Note that VA_START was subsequently renamed to PAGE_END in commit: 77ad4ce69321abbe ("arm64: memory: rename VA_START to PAGE_END") As the generic implementations of the two macros calculate the offset relative to PAGE_OFFSET (which is now the start of the TTBR1 address space), we can delete the arm64 implementation and use those. Fixes: 14c127c957c1c607 ("arm64: mm: Flip kernel VA space") Reviewed-by: James Morse <james.morse@arm.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Chris von Recklinghausen <crecklin@redhat.com> Signed-off-by: Will Deacon <will@kernel.org>
2019-10-11Documentation/process: Add fallthrough pseudo-keywordJoe Perches
Describe the fallthrough pseudo-keyword. Convert the coding-style.rst example to the keyword style. Add description and links to deprecated.rst. Miguel Ojeda comments on the eventual [[fallthrough]] syntax: "Note that C17/C18 does not have [[fallthrough]]. C++17 introduced it, as it is mentioned above. I would keep the __attribute__((fallthrough)) -> [[fallthrough]] change you did, though, since that is indeed the standard syntax (given the paragraph references C++17). I was told by Aaron Ballman (who is proposing them for C) that it is more or less likely that it becomes standardized in C2x. However, it is still not added to the draft (other attributes are already, though). See N2268 and N2269: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2268.pdf (fallthrough) http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2269.pdf (attributes in general)" Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-11compiler_attributes.h: Add 'fallthrough' pseudo keyword for switch/case useJoe Perches
Reserve the pseudo keyword 'fallthrough' for the ability to convert the various case block /* fallthrough */ style comments to appear to be an actual reserved word with the same gcc case block missing fallthrough warning capability. All switch/case blocks now should end in one of: break; fallthrough; goto <label>; return [expression]; continue; In C mode, GCC supports the __fallthrough__ attribute since 7.1, the same time the warning and the comment parsing were introduced. fallthrough devolves to an empty "do {} while (0)" if the compiler version (any version less than gcc 7) does not support the attribute. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Suggested-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-11net: sctp: Rename fallthrough label to unhandledJoe Perches
fallthrough will become a pseudo reserved keyword so this only use of fallthrough is better renamed to allow it. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-11Merge tag 'drm-fixes-2019-10-11' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "The regular fixes pull for rc3. The i915 team found some fixes they (or I) missed for rc1, which is why this is a bit bigger than usual, otherwise there is a single amdgpu fix, some spi panel aliases, and a bridge fix. i915: - execlist access fixes - list deletion fix - CML display fix - HSW workaround extension to GT2 - chicken bit whitelist - GGTT resume issue - SKL GPU hangs for Vulkan compute amdgpu: - memory leak fix panel: - spi aliases tc358767: - bridge artifacts fix" * tag 'drm-fixes-2019-10-11' of git://anongit.freedesktop.org/drm/drm: (22 commits) drm/bridge: tc358767: fix max_tu_symbol value drm/i915/gt: execlists->active is serialised by the tasklet drm/i915/execlists: Protect peeking at execlists->active drm/i915: Fixup preempt-to-busy vs reset of a virtual request drm/i915: Only enqueue already completed requests drm/i915/execlists: Drop redundant list_del_init(&rq->sched.link) drm/i915/cml: Add second PCH ID for CMP drm/amdgpu: fix memory leak drm/panel: tpo-td043mtea1: Fix SPI alias drm/panel: tpo-td028ttec1: Fix SPI alias drm/panel: sony-acx565akm: Fix SPI alias drm/panel: nec-nl8048hl11: Fix SPI alias drm/panel: lg-lb035q02: Fix SPI alias drm/i915: Mark contents as dirty on a write fault drm/i915: Prevent bonded requests from overtaking each other on preemption drm/i915: Bump skl+ max plane width to 5k for linear/x-tiled drm/i915: Verify the engine after acquiring the active.lock drm/i915: Extend Haswell GT1 PSMI workaround to all drm/i915: Don't mix srcu tag and negative error codes drm/i915: Whitelist COMMON_SLICE_CHICKEN2 ...
2019-10-11Merge tag 'for-linus-20191010' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: - Fix wbt performance regression introduced with the blk-rq-qos refactoring (Harshad) - Fix io_uring fileset removal inadvertently killing the workqueue (me) - Fix io_uring typo in linked command nonblock submission (Pavel) - Remove spurious io_uring wakeups on request free (Pavel) - Fix null_blk zoned command error return (Keith) - Don't use freezable workqueues for backing_dev, also means we can revert a previous libata hack (Mika) - Fix nbd sysfs mutex dropped too soon at removal time (Xiubo) * tag 'for-linus-20191010' of git://git.kernel.dk/linux-block: nbd: fix possible sysfs duplicate warning null_blk: Fix zoned command return code io_uring: only flush workqueues on fileset removal io_uring: remove wait loop spurious wakeups blk-wbt: fix performance regression in wbt scale_up/scale_down Revert "libata, freezer: avoid block device removal while system is frozen" bdi: Do not use freezable workqueue io_uring: fix reversed nonblock flag for link submission
2019-10-11tools/virtio: more stubsMichael S. Tsirkin
fix test module build. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-10-11s390/uaccess: avoid (false positive) compiler warningsChristian Borntraeger
Depending on inlining decisions by the compiler, __get/put_user_fn might become out of line. Then the compiler is no longer able to tell that size can only be 1,2,4 or 8 due to the check in __get/put_user resulting in false positives like ./arch/s390/include/asm/uaccess.h: In function ‘__put_user_fn’: ./arch/s390/include/asm/uaccess.h:113:9: warning: ‘rc’ may be used uninitialized in this function [-Wmaybe-uninitialized] 113 | return rc; | ^~ ./arch/s390/include/asm/uaccess.h: In function ‘__get_user_fn’: ./arch/s390/include/asm/uaccess.h:143:9: warning: ‘rc’ may be used uninitialized in this function [-Wmaybe-uninitialized] 143 | return rc; | ^~ These functions are supposed to be always inlined. Mark it as such. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-10-11firmware: google: increment VPD key_len properlyBrian Norris
Commit 4b708b7b1a2c ("firmware: google: check if size is valid when decoding VPD data") adds length checks, but the new vpd_decode_entry() function botched the logic -- it adds the key length twice, instead of adding the key and value lengths separately. On my local system, this means vpd.c's vpd_section_create_attribs() hits an error case after the first attribute it parses, since it's no longer looking at the correct offset. With this patch, I'm back to seeing all the correct attributes in /sys/firmware/vpd/... Fixes: 4b708b7b1a2c ("firmware: google: check if size is valid when decoding VPD data") Cc: <stable@vger.kernel.org> Cc: Hung-Te Lin <hungte@chromium.org> Signed-off-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Guenter Roeck <groeck@chromium.org> Link: https://lore.kernel.org/r/20190930214522.240680-1-briannorris@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-11MAINTAINERS: kgdb: Add myself as a reviewer for kgdb/kdbDouglas Anderson
I'm interested in kdb / kgdb and have sent various fixes over the years. I'd like to get CCed on patches so I can be aware of them and also help review. Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20190920104404.1.I237e68e8825e2d6ac26f8e847f521fe2fcc3705a@changeid Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-11spufs: fix a crash in spufs_create_root()Emmanuel Nicolet
The spu_fs_context was not set in fc->fs_private, this caused a crash when accessing ctx->mode in spufs_create_root(). Fixes: d2e0981c3b9a ("vfs: Convert spufs to use the new mount API") Signed-off-by: Emmanuel Nicolet <emmanuel.nicolet@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20191008141342.GA266797@gmail.com
2019-10-10io_uring: fix sequence logic for timeout requestsJens Axboe
We have two ways a request can be deferred: 1) It's a regular request that depends on another one 2) It's a timeout that tracks completions We have a shared helper to determine whether to defer, and that attempts to make the right decision based on the request. But we only have some of this information in the caller. Un-share the two timeout/defer helpers so the caller can use the right one. Fixes: 5262f567987d ("io_uring: IORING_OP_TIMEOUT support") Reported-by: yangerkun <yangerkun@huawei.com> Reviewed-by: Jackie Liu <liuyun01@kylinos.cn> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-10Merge branch 'smc-fixes'Jakub Kicinski
Karsten Graul says: ==================== Fixes for -net, addressing two races in SMC receive path and add a missing cleanup when the link group creating fails with ISM devices and a VLAN id. ==================== Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-10net/smc: receive pending data after RCV_SHUTDOWNKarsten Graul
smc_rx_recvmsg() first checks if data is available, and then if RCV_SHUTDOWN is set. There is a race when smc_cdc_msg_recv_action() runs in between these 2 checks, receives data and sets RCV_SHUTDOWN. In that case smc_rx_recvmsg() would return from receive without to process the available data. Fix that with a final check for data available if RCV_SHUTDOWN is set. Move the check for data into a function and call it twice. And use the existing helper smc_rx_data_available(). Fixes: 952310ccf2d8 ("smc: receive data from RMBE") Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-10net/smc: receive returns without dataKarsten Graul
smc_cdc_rxed_any_close_or_senddone() is used as an end condition for the receive loop. This conflicts with smc_cdc_msg_recv_action() which could run in parallel and set the bits checked by smc_cdc_rxed_any_close_or_senddone() before the receive is processed. In that case we could return from receive with no data, although data is available. The same applies to smc_rx_wait(). Fix this by checking for RCV_SHUTDOWN only, which is set in smc_cdc_msg_recv_action() after the receive was actually processed. Fixes: 952310ccf2d8 ("smc: receive data from RMBE") Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-10net/smc: fix SMCD link group creation with VLAN idUrsula Braun
If creation of an SMCD link group with VLAN id fails, the initial smc_ism_get_vlan() step has to be reverted as well. Fixes: c6ba7c9ba43d ("net/smc: add base infrastructure for SMC-D and ISM") Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-11Merge tag 'drm-intel-fixes-2019-10-10' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - Fix CML display by adding a missing ID. - Drop redundant list_del_init - Only enqueue already completed requests to avoid races - Fixup preempt-to-busy vs reset of a virtual request - Protect peeking at execlists->active - execlists->active is serialised by the tasklet drm-intel-next-fixes-2019-09-19: - Extend old HSW workaround to fix some GPU hangs on Haswell GT2 - Fix return error code on GEM mmap. - White list a chicken bit register for push constants legacy mode on Mesa - Fix resume issue related to GGTT restore - Remove incorrect BUG_ON on execlist's schedule-out - Fix unrecoverable GPU hangs with Vulkan compute workloads on SKL drm-intel-next-fixes-2019-09-26: - Fix concurrence on cases where requests where getting retired at same time as resubmitted to HW - Fix gen9 display resolutions by setting the right max plane width - Fix GPU hang on preemption - Mark contents as dirty on a write fault. This was breaking cursor sprite with dumb buffers. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191010143039.GA15313@intel.com
2019-10-11Merge tag 'drm-fixes-5.4-2019-10-09' of ↵Dave Airlie
git://people.freedesktop.org/~agd5f/linux into drm-fixes drm-fixes-5.4-2019-10-09: amdgpu: - fix memory leak in bo_list ioctl error path Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191010031023.23359-1-alexander.deucher@amd.com
2019-10-11Merge tag 'drm-misc-fixes-2019-10-10' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes Short summary of fixes pull (less than what git shortlog provides): - SPI Aliases fixes for panels - One fix for the tc358767 bridge dealing with visual artifacts Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191010105137.j6juxht5dsobgxph@gilmour
2019-10-10net: update net_dim documentation after renameJacob Keller
Commit 8960b38932be ("linux/dim: Rename externally used net_dim members") renamed the net_dim API, removing the "net_" prefix from the structures and functions. The patch didn't update the net_dim.txt documentation file. Fix the documentation so that its examples match the current code. Fixes: 8960b38932be ("linux/dim: Rename externally used net_dim members", 2019-06-25) Fixes: c002bd529d71 ("linux/dim: Rename externally exposed macros", 2019-06-25) Fixes: 4f75da3666c0 ("linux/dim: Move implementation to .c files") Cc: Tal Gilboa <talgi@mellanox.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-10r8169: fix jumbo packet handling on resume from suspendHeiner Kallweit
Mariusz reported that invalid packets are sent after resume from suspend if jumbo packets are active. It turned out that his BIOS resets chip settings to non-jumbo on resume. Most chip settings are re-initialized on resume from suspend by calling rtl_hw_start(), so let's add configuring jumbo to this function. There's nothing wrong with the commit marked as fixed, it's just the first one where the patch applies cleanly. Fixes: 7366016d2d4c ("r8169: read common register for PCI commit") Reported-by: Mariusz Bialonczyk <manio@skyboo.net> Tested-by: Mariusz Bialonczyk <manio@skyboo.net> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-10SUNRPC: fix race to sk_err after xs_error_reportBenjamin Coddington
Since commit 4f8943f80883 ("SUNRPC: Replace direct task wakeups from softirq context") there has been a race to the value of the sk_err if both XPRT_SOCK_WAKE_ERROR and XPRT_SOCK_WAKE_DISCONNECT are set. In that case, we may end up losing the sk_err value that existed when xs_error_report was called. Fix this by reverting to the previous behavior: instead of using SO_ERROR to retrieve the value at a later time (which might also return sk_err_soft), copy the sk_err value onto struct sock_xprt, and use that value to wake pending tasks. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Fixes: 4f8943f80883 ("SUNRPC: Replace direct task wakeups from softirq context") Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-10-10NFSv4: Fix leak of clp->cl_acceptor stringChuck Lever
Our client can issue multiple SETCLIENTID operations to the same server in some circumstances. Ensure that calls to nfs4_proc_setclientid() after the first one do not overwrite the previously allocated cl_acceptor string. unreferenced object 0xffff888461031800 (size 32): comm "mount.nfs", pid 2227, jiffies 4294822467 (age 1407.749s) hex dump (first 32 bytes): 6e 66 73 40 6b 6c 69 6d 74 2e 69 62 2e 31 30 31 nfs@klimt.ib.101 35 67 72 61 6e 67 65 72 2e 6e 65 74 00 00 00 00 5granger.net.... backtrace: [<00000000ab820188>] __kmalloc+0x128/0x176 [<00000000eeaf4ec8>] gss_stringify_acceptor+0xbd/0x1a7 [auth_rpcgss] [<00000000e85e3382>] nfs4_proc_setclientid+0x34e/0x46c [nfsv4] [<000000003d9cf1fa>] nfs40_discover_server_trunking+0x7a/0xed [nfsv4] [<00000000b81c3787>] nfs4_discover_server_trunking+0x81/0x244 [nfsv4] [<000000000801b55f>] nfs4_init_client+0x1b0/0x238 [nfsv4] [<00000000977daf7f>] nfs4_set_client+0xfe/0x14d [nfsv4] [<0000000053a68a2a>] nfs4_create_server+0x107/0x1db [nfsv4] [<0000000088262019>] nfs4_remote_mount+0x2c/0x59 [nfsv4] [<00000000e84a2fd0>] legacy_get_tree+0x2d/0x4c [<00000000797e947c>] vfs_get_tree+0x20/0xc7 [<00000000ecabaaa8>] fc_mount+0xe/0x36 [<00000000f15fafc2>] vfs_kern_mount+0x74/0x8d [<00000000a3ff4e26>] nfs_do_root_mount+0x8a/0xa3 [nfsv4] [<00000000d1c2b337>] nfs4_try_mount+0x58/0xad [nfsv4] [<000000004c9bddee>] nfs_fs_mount+0x820/0x869 [nfs] Fixes: f11b2a1cfbf5 ("nfs4: copy acceptor name from context ... ") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-10-10MIPS: Disable Loongson MMI instructions for kernel buildPaul Burton
GCC 9.x automatically enables support for Loongson MMI instructions when using some -march= flags, and then errors out when -msoft-float is specified with: cc1: error: ‘-mloongson-mmi’ must be used with ‘-mhard-float’ The kernel shouldn't be using these MMI instructions anyway, just as it doesn't use floating point instructions. Explicitly disable them in order to fix the build with GCC 9.x. Signed-off-by: Paul Burton <paul.burton@mips.com> Fixes: 3702bba5eb4f ("MIPS: Loongson: Add GCC 4.4 support for Loongson2E") Fixes: 6f7a251a259e ("MIPS: Loongson: Add basic Loongson 2F support") Fixes: 5188129b8c9f ("MIPS: Loongson-3: Improve -march option and move it to Platform") Cc: Huacai Chen <chenhc@lemote.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: stable@vger.kernel.org # v2.6.32+ Cc: linux-mips@vger.kernel.org
2019-10-10MIPS: elf_hwcap: Export userspace ASEsJiaxun Yang
A Golang developer reported MIPS hwcap isn't reflecting instructions that the processor actually supported so programs can't apply optimized code at runtime. Thus we export the ASEs that can be used in userspace programs. Reported-by: Meng Zhuo <mengzhuo1203@gmail.com> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: linux-mips@vger.kernel.org Cc: Paul Burton <paul.burton@mips.com> Cc: <stable@vger.kernel.org> # 4.14+ Signed-off-by: Paul Burton <paul.burton@mips.com>
2019-10-10Merge tag 'xfs-5.4-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull xfs fixes from Darrick Wong: "A couple of small code cleanups and bug fixes for rounding errors, metadata logging errors, and an extra layer of safeguards against leaking memory contents. - Fix a rounding error in the fallocate code - Minor code cleanups - Make sure to zero memory buffers before formatting metadata blocks - Fix a few places where we forgot to log an inode metadata update - Remove broken error handling that tried to clean up after a failure but still got it wrong" * tag 'xfs-5.4-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: move local to extent inode logging into bmap helper xfs: remove broken error handling on failed attr sf to leaf change xfs: log the inode on directory sf to block format change xfs: assure zeroed memory buffers for certain kmem allocations xfs: removed unused error variable from xchk_refcountbt_rec xfs: remove unused flags arg from xfs_get_aghdr_buf() xfs: Fix tail rounding in xfs_alloc_file_space()
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