swh:1:snp:13806c77fd4b7f42b1e985e730bd615fd52cfac1
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Revision | Author | Date | Message | Commit Date |
---|---|---|---|---|
4fbd8d1 | Linus Torvalds | 27 November 2017, 00:01:47 UTC | Linux 4.15-rc1 | 27 November 2017, 00:01:47 UTC |
bbecb1c | Linus Torvalds | 26 November 2017, 23:03:49 UTC | Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm Pull ARM fixes from Russell King: - LPAE fixes for kernel-readonly regions - Fix for get_user_pages_fast on LPAE systems - avoid tying decompressor to a particular platform if DEBUG_LL is enabled - BUG if we attempt to return to userspace but the to-be-restored PSR value keeps us in privileged mode (defeating an issue that ftracetest found) * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: BUG if jumping to usermode address in kernel mode ARM: 8722/1: mm: make STRICT_KERNEL_RWX effective for LPAE ARM: 8721/1: mm: dump: check hardware RO bit for LPAE ARM: make decompressor debug output user selectable ARM: fix get_user_pages_fast | 26 November 2017, 23:03:49 UTC |
dec0029 | Linus Torvalds | 26 November 2017, 22:39:20 UTC | Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Glexiner: - unbreak the irq trigger type check for legacy platforms - a handful fixes for ARM GIC v3/4 interrupt controllers - a few trivial fixes all over the place * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/matrix: Make - vs ?: Precedence explicit irqchip/imgpdc: Use resource_size function on resource object irqchip/qcom: Fix u32 comparison with value less than zero irqchip/exiu: Fix return value check in exiu_init() irqchip/gic-v3-its: Remove artificial dependency on PCI irqchip/gic-v4: Add forward definition of struct irq_domain_ops irqchip/gic-v3: pr_err() strings should end with newlines irqchip/s3c24xx: pr_err() strings should end with newlines irqchip/gic-v3: Fix ppi-partitions lookup irqchip/gic-v4: Clear IRQ_DISABLE_UNLAZY again if mapping fails genirq: Track whether the trigger type has been set | 26 November 2017, 22:39:20 UTC |
02fc87b | Linus Torvalds | 26 November 2017, 22:11:54 UTC | Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 fixes from Ingo Molnar: - topology enumeration fixes - KASAN fix - two entry fixes (not yet the big series related to KASLR) - remove obsolete code - instruction decoder fix - better /dev/mem sanity checks, hopefully working better this time - pkeys fixes - two ACPI fixes - 5-level paging related fixes - UMIP fixes that should make application visible faults more debuggable - boot fix for weird virtualization environment * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) x86/decoder: Add new TEST instruction pattern x86/PCI: Remove unused HyperTransport interrupt support x86/umip: Fix insn_get_code_seg_params()'s return value x86/boot/KASLR: Remove unused variable x86/entry/64: Add missing irqflags tracing to native_load_gs_index() x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow x86/entry/64: Fix entry_SYSCALL_64_after_hwframe() IRQ tracing x86/pkeys/selftests: Fix protection keys write() warning x86/pkeys/selftests: Rename 'si_pkey' to 'siginfo_pkey' x86/mpx/selftests: Fix up weird arrays x86/pkeys: Update documentation about availability x86/umip: Print a warning into the syslog if UMIP-protected instructions are used x86/smpboot: Fix __max_logical_packages estimate x86/topology: Avoid wasting 128k for package id array perf/x86/intel/uncore: Cache logical pkg id in uncore driver x86/acpi: Reduce code duplication in mp_override_legacy_irq() x86/acpi: Handle SCI interrupts above legacy space gracefully x86/boot: Fix boot failure when SMP MP-table is based at 0 x86/mm: Limit mmap() of /dev/mem to valid physical addresses x86/selftests: Add test for mapping placement for 5-level paging ... | 26 November 2017, 22:11:54 UTC |
6830c8d | Linus Torvalds | 26 November 2017, 21:43:25 UTC | Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Misc fixes: a documentation fix, a Sparse warning fix and a debugging fix" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/debug: Fix task state recording/printout sched/deadline: Don't use dubious signed bitfields sched/deadline: Fix the description of runtime accounting in the documentation | 26 November 2017, 21:43:25 UTC |
580e3d5 | Linus Torvalds | 26 November 2017, 21:41:48 UTC | Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Misc fixes: two PMU driver fixes and a memory leak fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: Fix memory leak triggered by perf --namespace perf/x86/intel/uncore: Add event constraint for BDX PCU perf/x86/intel: Hide TSX events when RTM is not supported | 26 November 2017, 21:41:48 UTC |
cd4b5d5 | Linus Torvalds | 26 November 2017, 21:36:54 UTC | Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull static key fix from Ingo Molnar: "Fix a boot warning related to bad init ordering of the static keys self-test" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: jump_label: Invoke jump_label_test() via early_initcall() | 26 November 2017, 21:36:54 UTC |
fcbc38b | Linus Torvalds | 26 November 2017, 21:11:18 UTC | Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fixes from Ingo Molnar: "A handful of objtool fixes, most of them related to making the UAPI header-syncing warnings easier to read and easier to act upon" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/headers: Sync objtool UAPI header objtool: Fix cross-build objtool: Move kernel headers/code sync check to a script objtool: Move synced files to their original relative locations objtool: Make unreachable annotation inline asms explicitly volatile objtool: Add a comment for the unreachable annotation macros | 26 November 2017, 21:11:18 UTC |
8bafae2 | Russell King | 24 November 2017, 23:49:34 UTC | ARM: BUG if jumping to usermode address in kernel mode Detect if we are returning to usermode via the normal kernel exit paths but the saved PSR value indicates that we are in kernel mode. This could occur due to corrupted stack state, which has been observed with "ftracetest". This ensures that we catch the problem case before we get to user code. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> | 26 November 2017, 15:41:39 UTC |
844056f | Linus Torvalds | 25 November 2017, 18:37:16 UTC | Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: - The final conversion of timer wheel timers to timer_setup(). A few manual conversions and a large coccinelle assisted sweep and the removal of the old initialization mechanisms and the related code. - Remove the now unused VSYSCALL update code - Fix permissions of /proc/timer_list. I still need to get rid of that file completely - Rename a misnomed clocksource function and remove a stale declaration * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) m68k/macboing: Fix missed timer callback assignment treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts timer: Remove redundant __setup_timer*() macros timer: Pass function down to initialization routines timer: Remove unused data arguments from macros timer: Switch callback prototype to take struct timer_list * argument timer: Pass timer_list pointer to callbacks unconditionally Coccinelle: Remove setup_timer.cocci timer: Remove setup_*timer() interface timer: Remove init_timer() interface treewide: setup_timer() -> timer_setup() (2 field) treewide: setup_timer() -> timer_setup() treewide: init_timer() -> setup_timer() treewide: Switch DEFINE_TIMER callbacks to struct timer_list * s390: cmm: Convert timers to use timer_setup() lightnvm: Convert timers to use timer_setup() drivers/net: cris: Convert timers to use timer_setup() drm/vc4: Convert timers to use timer_setup() block/laptop_mode: Convert timers to use timer_setup() net/atm/mpc: Avoid open-coded assignment of timer callback function ... | 25 November 2017, 18:37:16 UTC |
ca122fe | Linus Torvalds | 25 November 2017, 18:21:54 UTC | Merge tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC updates from Vineet Gupta: - more changes for HS48 cores: supporting MMUv5, detecting new micro-arch gizmos - axs10x platform wiring up reset driver merged in this cycle - ARC perf driver optimizations * tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: perf: avoid vmalloc backed mmap ARCv2: perf: optimize given that num counters <= 32 ARCv2: perf: tweak overflow interrupt ARC: [plat-axs10x] DTS: Add reset controller node to manage ethernet reset ARCv2: boot log: updates for HS48: dual-issue, ECC, Loop Buffer ARCv2: Accomodate HS48 MMUv5 by relaxing MMU ver checking ARC: [plat-axs10x] auto-select AXS101 or AXS103 given the ISA config | 25 November 2017, 18:21:54 UTC |
5e2fda4 | Linus Torvalds | 25 November 2017, 18:06:30 UTC | Merge tag 'kbuild-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: - use 'pwd' instead of '/bin/pwd' for portability - clean up Makefiles - fix ld-option for clang - fix malloc'ed data size in Kconfig - fix parallel building along with coccicheck - fix a minor issue of package building - prompt to use "rpm-pkg" instead of "rpm" - clean up *.i and *.lst patterns by "make clean" * tag 'kbuild-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: drop $(extra-y) from real-objs-y kbuild: clean up *.i and *.lst patterns by make clean kbuild: rpm: prompt to use "rpm-pkg" if "rpm" target is used kbuild: pkg: use --transform option to prefix paths in tar coccinelle: fix parallel build with CHECK=scripts/coccicheck kconfig/symbol.c: use correct pointer type argument for sizeof kbuild: Set KBUILD_CFLAGS before incl. arch Makefile kbuild: remove all dummy assignments to obj- kbuild: create built-in.o automatically if parent directory wants it kbuild: /bin/pwd -> pwd | 25 November 2017, 18:06:30 UTC |
f61ec2c | Linus Torvalds | 25 November 2017, 17:58:25 UTC | Merge tag 'afs-fixes-20171124' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull AFS fixes from David Howells: - Make AFS file locking work again. - Don't write to a page that's being written out, but wait for it to complete. - Do d_drop() and d_add() in the right places. - Put keys on error paths. - Remove some redundant code. * tag 'afs-fixes-20171124' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: remove redundant assignment of dvnode to itself afs: cell: Remove unnecessary code in afs_lookup_cell afs: Fix signal handling in some file ops afs: Fix some dentry handling in dir ops and missing key_puts afs: Make afs_write_begin() avoid writing to a page that's being stored afs: Fix file locking | 25 November 2017, 17:58:25 UTC |
7753ea0 | Linus Torvalds | 25 November 2017, 05:44:25 UTC | Merge tag 'kvm-4.15-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Radim Krčmář: "Trimmed second batch of KVM changes for Linux 4.15: - GICv4 Support for KVM/ARM - re-introduce support for CPUs without virtual NMI (cc stable) and allow testing of KVM without virtual NMI on available CPUs - fix long-standing performance issues with assigned devices on AMD (cc stable)" * tag 'kvm-4.15-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (30 commits) kvm: vmx: Allow disabling virtual NMI support kvm: vmx: Reinstate support for CPUs without virtual NMI KVM: SVM: obey guest PAT KVM: arm/arm64: Don't queue VLPIs on INV/INVALL KVM: arm/arm64: Fix GICv4 ITS initialization issues KVM: arm/arm64: GICv4: Theory of operations KVM: arm/arm64: GICv4: Enable VLPI support KVM: arm/arm64: GICv4: Prevent userspace from changing doorbell affinity KVM: arm/arm64: GICv4: Prevent a VM using GICv4 from being saved KVM: arm/arm64: GICv4: Enable virtual cpuif if VLPIs can be delivered KVM: arm/arm64: GICv4: Hook vPE scheduling into vgic flush/sync KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source KVM: arm/arm64: GICv4: Add doorbell interrupt handling KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint KVM: arm/arm64: GICv4: Handle INVALL applied to a vPE KVM: arm/arm64: GICv4: Propagate property updates to VLPIs KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI KVM: arm/arm64: GICv4: Propagate affinity changes to the physical ITS KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI ... | 25 November 2017, 05:44:25 UTC |
83ada03 | Linus Torvalds | 25 November 2017, 05:40:12 UTC | Merge tag 'powerpc-4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "A small batch of fixes, about 50% tagged for stable and the rest for recently merged code. There's one more fix for the >128T handling on hash. Once a process had requested a single mmap above 128T we would then always search above 128T. The correct behaviour is to consider the hint address in isolation for each mmap request. Then a couple of fixes for the IMC PMU, a missing EXPORT_SYMBOL in VAS, a fix for STRICT_KERNEL_RWX on 32-bit, and a fix to correctly identify P9 DD2.1 but in code that is currently not used by default. Thanks to: Aneesh Kumar K.V, Christophe Leroy, Madhavan Srinivasan, Sukadev Bhattiprolu" * tag 'powerpc-4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Fix Power9 DD2.1 logic in DT CPU features powerpc/perf: Fix IMC_MAX_PMU macro powerpc/perf: Fix pmu_count to count only nest imc pmus powerpc: Fix boot on BOOK3S_32 with CONFIG_STRICT_KERNEL_RWX powerpc/perf/imc: Use cpu_to_node() not topology_physical_package_id() powerpc/vas: Export chip_to_vas_id() powerpc/64s/slice: Use addr limit when computing slice mask | 25 November 2017, 05:40:12 UTC |
eda5d47 | Linus Torvalds | 25 November 2017, 05:19:20 UTC | Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending Pull SCSI target updates from Nicholas Bellinger: "This series is predominantly bug-fixes, with a few small improvements that have been outstanding over the last release cycle. As usual, the associated bug-fixes have CC' tags for stable. Also, things have been particularly quiet wrt new developments the last months, with most folks continuing to focus on stability atop 4.x stable kernels for their respective production configurations. Also at this point, the stable trees have been synced up with mainline. This will continue to be a priority, as production users tend to run exclusively atop stable kernels, a few releases behind mainline. The highlights include: - Fix PR PREEMPT_AND_ABORT null pointer dereference regression in v4.11+ (tangwenji) - Fix OOPs during removing TCMU device (Xiubo Li + Zhang Zhuoyu) - Add netlink command reply supported option for each device (Kenjiro Nakayama) - cxgbit: Abort the TCP connection in case of data out timeout (Varun Prakash) - Fix PR/ALUA file path truncation (David Disseldorp) - Fix double se_cmd completion during ->cmd_time_out (Mike Christie) - Fix QUEUE_FULL + SCSI task attribute handling in 4.1+ (Bryant Ly + nab) - Fix quiese during transport_write_pending_qf endless loop (nab) - Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK in 3.14+ (Don White + nab)" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (35 commits) tcmu: Add a missing unlock on an error path tcmu: Fix some memory corruption iscsi-target: Fix non-immediate TMR reference leak iscsi-target: Make TASK_REASSIGN use proper se_cmd->cmd_kref target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK target: Fix quiese during transport_write_pending_qf endless loop target: Fix caw_sem leak in transport_generic_request_failure target: Fix QUEUE_FULL + SCSI task attribute handling iSCSI-target: Use common error handling code in iscsi_decode_text_input() target/iscsi: Detect conn_cmd_list corruption early target/iscsi: Fix a race condition in iscsit_add_reject_from_cmd() target/iscsi: Modify iscsit_do_crypto_hash_buf() prototype target/iscsi: Fix endianness in an error message target/iscsi: Use min() in iscsit_dump_data_payload() instead of open-coding it target/iscsi: Define OFFLOAD_BUF_SIZE once target: Inline transport_put_cmd() target: Suppress gcc 7 fallthrough warnings target: Move a declaration of a global variable into a header file tcmu: fix double se_cmd completion target: return SAM_STAT_TASK_SET_FULL for TCM_OUT_OF_RESOURCES ... | 25 November 2017, 05:19:20 UTC |
54b8a23 | Kees Cook | 23 November 2017, 22:19:02 UTC | m68k/macboing: Fix missed timer callback assignment This fixes a missed function prototype callback from the timer conversions. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20171123221902.GA75727@beast | 24 November 2017, 15:19:40 UTC |
43dd388 | Colin Ian King | 20 November 2017, 13:58:20 UTC | afs: remove redundant assignment of dvnode to itself The assignment of dvnode to itself is redundant and can be removed. Cleans up warning detected by cppcheck: fs/afs/dir.c:975: (warning) Redundant assignment of 'dvnode' to itself. Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David Howells <dhowells@redhat.com> | 24 November 2017, 13:55:46 UTC |
6832795 | Gustavo A. R. Silva | 17 November 2017, 22:40:32 UTC | afs: cell: Remove unnecessary code in afs_lookup_cell Due to recent changes this piece of code is no longer needed. Addresses-Coverity-ID: 1462033 Link: https://lkml.kernel.org/r/4923.1510957307@warthog.procyon.org.uk Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: David Howells <dhowells@redhat.com> | 24 November 2017, 13:55:45 UTC |
4433b69 | David Howells | 20 November 2017, 22:41:00 UTC | afs: Fix signal handling in some file ops afs_mkdir(), afs_create(), afs_link() and afs_symlink() all need to drop the target dentry if a signal causes the operation to be killed immediately before we try to contact the server. Signed-off-by: David Howells <dhowells@redhat.com> | 24 November 2017, 13:55:35 UTC |
bc1527d | David Howells | 20 November 2017, 23:04:08 UTC | afs: Fix some dentry handling in dir ops and missing key_puts Fix some of dentry handling in AFS directory ops: (1) Do d_drop() on the new_dentry before assigning a new inode to it in afs_vnode_new_inode(). It's fine to do this before calling afs_iget() because the operation has taken place on the server. (2) Replace d_instantiate()/d_rehash() with d_add(). (3) Don't d_drop() the new_dentry in afs_rename() on error. Also fix afs_link() and afs_rename() to call key_put() on all error paths where the key is taken. Signed-off-by: David Howells <dhowells@redhat.com> | 24 November 2017, 10:56:51 UTC |
5a039c3 | David Howells | 18 November 2017, 00:13:30 UTC | afs: Make afs_write_begin() avoid writing to a page that's being stored Make afs_write_begin() wait for a page that's marked PG_writeback because: (1) We need to avoid interference with the data being stored so that the data on the server ends up in a defined state. (2) page->private is used to track the window of dirty data within a page, but it's also used by the storage code to track what's being written, being cleared by the completion notification. Ownership can't be relinquished by the storage code until completion because it a store fails, the data must be remarked dirty. Tracing shows something like the following (edited): x86_64-linux-gn-15940 [1] afs_page_dirty: vn=ffff8800bef33800 9c75 begin 0-125 kworker/u8:3-114 [2] afs_page_dirty: vn=ffff8800bef33800 9c75 store+ 0-125 x86_64-linux-gn-15940 [1] afs_page_dirty: vn=ffff8800bef33800 9c75 begin 0-2052 kworker/u8:3-114 [2] afs_page_dirty: vn=ffff8800bef33800 9c75 clear 0-2052 kworker/u8:3-114 [2] afs_page_dirty: vn=ffff8800bef33800 9c75 store 0-0 kworker/u8:3-114 [2] afs_page_dirty: vn=ffff8800bef33800 9c75 WARN 0-0 The clear (completion) corresponding to the store+ (store continuation from a previous page) happens between the second begin (afs_write_begin) and the store corresponding to that. This results in the second store not seeing any data to write back, leading to the following warning: WARNING: CPU: 2 PID: 114 at ../fs/afs/write.c:403 afs_write_back_from_locked_page+0x19d/0x76c [kafs] Modules linked in: kafs(E) CPU: 2 PID: 114 Comm: kworker/u8:3 Tainted: G E 4.14.0-fscache+ #242 Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014 Workqueue: writeback wb_workfn (flush-afs-2) task: ffff8800cad72600 task.stack: ffff8800cad44000 RIP: 0010:afs_write_back_from_locked_page+0x19d/0x76c [kafs] RSP: 0018:ffff8800cad47aa0 EFLAGS: 00010246 RAX: 0000000000000001 RBX: ffff8800bef33a20 RCX: 0000000000000000 RDX: 000000000000000f RSI: ffffffff81c5d0e0 RDI: ffff8800cad72e78 RBP: ffff8800d31ea1e8 R08: ffff8800c1358000 R09: ffff8800ca00e400 R10: ffff8800cad47a38 R11: ffff8800c5d9e400 R12: 0000000000000000 R13: ffffea0002d9df00 R14: ffffffffa0023c1c R15: 0000000000007fdf FS: 0000000000000000(0000) GS:ffff8800ca700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f85ac6c4000 CR3: 0000000001c10001 CR4: 00000000001606e0 Call Trace: ? clear_page_dirty_for_io+0x23a/0x267 afs_writepages_region+0x1be/0x286 [kafs] afs_writepages+0x60/0x127 [kafs] do_writepages+0x36/0x70 __writeback_single_inode+0x12f/0x635 writeback_sb_inodes+0x2cc/0x452 __writeback_inodes_wb+0x68/0x9f wb_writeback+0x208/0x470 ? wb_workfn+0x22b/0x565 wb_workfn+0x22b/0x565 ? worker_thread+0x230/0x2ac process_one_work+0x2cc/0x517 ? worker_thread+0x230/0x2ac worker_thread+0x1d4/0x2ac ? rescuer_thread+0x29b/0x29b kthread+0x15d/0x165 ? kthread_create_on_node+0x3f/0x3f ? call_usermodehelper_exec_async+0x118/0x11f ret_from_fork+0x24/0x30 Signed-off-by: David Howells <dhowells@redhat.com> | 24 November 2017, 10:56:51 UTC |
3f5fe9f | Thomas Gleixner | 22 November 2017, 12:05:48 UTC | sched/debug: Fix task state recording/printout The recent conversion of the task state recording to use task_state_index() broke the sched_switch tracepoint task state output. task_state_index() returns surprisingly an index (0-7) which is then printed with __print_flags() applying bitmasks. Not really working and resulting in weird states like 'prev_state=t' instead of 'prev_state=I'. Use TASK_REPORT_MAX instead of TASK_STATE_MAX to report preemption. Build a bitmask from the return value of task_state_index() and store it in entry->prev_state, which makes __print_flags() work as expected. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: stable@vger.kernel.org Fixes: efb40f588b43 ("sched/tracing: Fix trace_sched_switch task-state printing") Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1711221304180.1751@nanos Signed-off-by: Ingo Molnar <mingo@kernel.org> | 24 November 2017, 07:39:12 UTC |
12a78d4 | Masami Hiramatsu | 24 November 2017, 04:56:30 UTC | x86/decoder: Add new TEST instruction pattern The kbuild test robot reported this build warning: Warning: arch/x86/tools/test_get_len found difference at <jump_table>:ffffffff8103dd2c Warning: ffffffff8103dd82: f6 09 d8 testb $0xd8,(%rcx) Warning: objdump says 3 bytes, but insn_get_length() says 2 Warning: decoded and checked 1569014 instructions with 1 warnings This sequence seems to be a new instruction not in the opcode map in the Intel SDM. The instruction sequence is "F6 09 d8", means Group3(F6), MOD(00)REG(001)RM(001), and 0xd8. Intel SDM vol2 A.4 Table A-6 said the table index in the group is "Encoding of Bits 5,4,3 of the ModR/M Byte (bits 2,1,0 in parenthesis)" In that table, opcodes listed by the index REG bits as: 000 001 010 011 100 101 110 111 TEST Ib/Iz,(undefined),NOT,NEG,MUL AL/rAX,IMUL AL/rAX,DIV AL/rAX,IDIV AL/rAX So, it seems TEST Ib is assigned to 001. Add the new pattern. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: <stable@vger.kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> | 24 November 2017, 07:36:12 UTC |
1d3b78b | Linus Torvalds | 24 November 2017, 07:18:46 UTC | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net Pull networking fixes from David Miller: 1) Fix PCI IDs of 9000 series iwlwifi devices, from Luca Coelho. 2) bpf offload bug fixes from Jakub Kicinski. 3) Fix bpf verifier to NOP out code which is dead at run time because due to branch pruning the verifier will not explore such instructions. From Alexei Starovoitov. 4) Fix crash when deleting secondary chains in packet scheduler classifier. From Roman Kapl. 5) Fix buffer management bugs in smc, from Ursula Braun. 6) Fix regression in anycast route handling, from David Ahern. 7) Fix link settings regression in r8169, from Tobias Jakobi. 8) Add back enough UFO support so that live migration still works, from Willem de Bruijn. 9) Linearize enough packet data for the full extent to which the ipvlan code will inspect the packet headers, from Gao Feng. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits) ipvlan: Fix insufficient skb linear check for ipv6 icmp ipvlan: Fix insufficient skb linear check for arp geneve: only configure or fill UDP_ZERO_CSUM6_RX/TX info when CONFIG_IPV6 net: dsa: bcm_sf2: Clear IDDQ_GLOBAL_PWR bit for PHY net: accept UFO datagrams from tuntap and packet net: realtek: r8169: implement set_link_ksettings() net: ipv6: Fixup device for anycast routes during copy net/smc: Fix preinitialization of buf_desc in __smc_buf_create() net/smc: use sk_rcvbuf as start for rmb creation ipv6: Do not consider linkdown nexthops during multipath net: sched: fix crash when deleting secondary chains net: phy: cortina: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE bpf: fix branch pruning logic bpf: change bpf_perf_event_output arg5 type to ARG_CONST_SIZE_OR_ZERO bpf: change bpf_probe_read_str arg2 type to ARG_CONST_SIZE_OR_ZERO bpf: remove explicit handling of 0 for arg2 in bpf_probe_read bpf: introduce ARG_PTR_TO_MEM_OR_NULL i40evf: Use smp_rmb rather than read_barrier_depends fm10k: Use smp_rmb rather than read_barrier_depends igb: Use smp_rmb rather than read_barrier_depends ... | 24 November 2017, 07:18:46 UTC |
36f20ee | Linus Torvalds | 24 November 2017, 07:14:30 UTC | Merge tag 'platform-drivers-x86-v4.15-2' of git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform driver fixes from Darren Hart: "Fix two issues resulting from the dell-smbios refactoring and introduction of the dell-smbios-wmi dispatcher. The first ensures a proper error code is returned when kzalloc fails. The second avoids an issue in older Dell BIOS implementations which would fail if the more complex calls were made by limiting those platforms to the simple calls such as those used by the existing dell-laptop and dell-wmi drivers, preserving their functionality prior to the addition of the dell-smbios-wmi dispatcher" * tag 'platform-drivers-x86-v4.15-2' of git://git.infradead.org/linux-platform-drivers-x86: platform/x86: dell-laptop: fix error return code in dell_init() platform/x86: dell-smbios-wmi: Disable userspace interface if missing hotfix | 24 November 2017, 07:14:30 UTC |
06c9440 | Linus Torvalds | 24 November 2017, 07:12:58 UTC | Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Two basic fixes: one for the sparse problem with the blacklist flags and another for a hang forever in bnx2i" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: Use 'blist_flags_t' for scsi_devinfo flags scsi: bnx2fc: Fix hung task messages when a cleanup response is not received during abort | 24 November 2017, 07:12:58 UTC |
b64f26c | Linus Torvalds | 24 November 2017, 07:09:41 UTC | Merge tag 'sound-fix-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "All commits found here are small fixes for regression or stable: - PCM timestamp behavior fix that could be seen as a regression - Remove spurious WARN_ON() from ALSA timer 32bit compat ioctl - HD-audio HDMI/DP channel mapping fix for 32bit archs - Fix the previous fix for HD-audio initialization code - More hardening USB-audio against malicious USB descriptors - HD-audio quirks/fixes (Realtek codec, AMD controller) - Missing help text for the recent Intel SST kconfig change" * tag 'sound-fix-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda: Add Raven PCI ID ALSA: hda/realtek - Fix ALC700 family no sound issue ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization ALSA: usb-audio: Add sanity checks in v2 clock parsers ALSA: usb-audio: Fix potential zero-division at parsing FU ALSA: usb-audio: Fix potential out-of-bound access at parsing SU ALSA: usb-audio: Add sanity checks to FE parser ALSA: timer: Remove kernel warning at compat ioctl error paths ALSA: pcm: update tstamp only if audio_tstamp changed ALSA: hda/realtek: Add headset mic support for Intel NUC Skull Canyon ALSA: hda: Fix too short HDMI/DP chmap reporting ALSA: usb-audio: uac1: Invalidate ctl on interrupt ALSA: hda/realtek - Fix ALC275 no sound issue ASoC: Intel: Add help text for SND_SOC_INTEL_SST_TOPLEVEL | 24 November 2017, 07:09:41 UTC |
c353bfc | Linus Torvalds | 24 November 2017, 07:04:56 UTC | Merge tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux Pull more drm updates from Dave Airlie: "Fixes/cleanups for rc1, non-desktop flags for VR - remove the MSM dt-bindings file Rob managed to push in the previous pull. - add a property/edid quirk to denote HMD devices, I had these hanging around for a few weeks and Keith had done some work on them, they are fairly self contained and small, and only affect people using HTC Vive VR headsets so far. - amdgpu, tegra, tilcdc, fsl fixes - some imx-drm cleanups I missed, these seemed pretty small, and no reason to hold off. I have one TTM regression fix (fixes bochs-vga in qemu) sitting locally awaiting review I'll probably send that in a separate pull request tomorrow" * tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux: (33 commits) dt-bindings: remove file that was added accidentally drm/edid: quirk HTC vive headset as non-desktop. [v2] drm/fb: add support for not enabling fbcon on non-desktop displays [v2] drm: add connector info/property for non-desktop displays [v2] drm/amdgpu: fix rmmod KCQ disable failed error drm/amdgpu: fix kernel hang when starting VNC server drm/amdgpu: don't skip attributes when powerplay is enabled drm/amd/pp: fix typecast error in powerplay. drm/tilcdc: Remove obsolete "ti,tilcdc,slave" dts binding support drm/tegra: sor: Reimplement pad clock Revert "drm/radeon: dont switch vt on suspend" drm/amd/amdgpu: fix over-bound accessing in amdgpu_cs_wait_any_fence drm/amd/powerplay: fix unfreeze level smc message for smu7 drm/amdgpu:fix memleak drm/amdgpu:fix memleak in takedown drm/amd/pp: fix dpm randomly failed on Vega10 drm/amdgpu: set f_mapping on exported DMA-bufs drm/amdgpu: Properly allocate VM invalidate eng v2 drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume() drm/fsl-dcu: avoid disabling pixel clock twice on suspend ... | 24 November 2017, 07:04:56 UTC |
1d3bc63 | Linus Torvalds | 24 November 2017, 07:01:32 UTC | Merge tag 'docs-4.15-2' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "A few late-arriving docs updates that have no real reason to wait. There's a new "Co-Developed-by" tag described by Greg, and a build enhancement from Willy to generate docs warnings during a kernel build (but only when additional warnings have been requested in general)" * tag 'docs-4.15-2' of git://git.lwn.net/linux: Add optional check for bad kernel-doc comments Documentation: fix profile= options in kernel-parameters.txt documentation/svga.txt: update outdated file kokr/memory-barriers.txt: Fix typo in paring example kokr/memory-barriers/txt: Replace uses of "transitive" Documentation/process: add Co-Developed-by: tag for patches with multiple authors | 24 November 2017, 07:01:32 UTC |
dab0bad | Linus Torvalds | 24 November 2017, 06:51:27 UTC | Merge branch 'next-keys' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull keys update from James Morris: "There's nothing too controversial here: - Doc fix for keyctl_read(). - time_t -> time64_t replacement. - Set the module licence on things to prevent tainting" * 'next-keys' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: pkcs7: Set the module licence to prevent tainting security: keys: Replace time_t with time64_t for struct key_preparsed_payload security: keys: Replace time_t/timespec with time64_t KEYS: fix in-kernel documentation for keyctl_read() | 24 November 2017, 06:51:27 UTC |
26064de | Linus Torvalds | 24 November 2017, 06:48:26 UTC | Merge tag 'apparmor-pr-2017-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor Pull apparmor updates from John Johansen: "No features this time, just minor cleanups and bug fixes. Cleanups: - fix spelling mistake: "resoure" -> "resource" - remove unused redundant variable stop - Fix bool initialization/comparison Bug Fixes: - initialized returned struct aa_perms - fix leak of null profile name if profile allocation fails - ensure that undecidable profile attachments fail - fix profile attachment for special unconfined profiles - fix locking when creating a new complain profile. - fix possible recursive lock warning in __aa_create_ns" * tag 'apparmor-pr-2017-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: apparmor: fix possible recursive lock warning in __aa_create_ns apparmor: fix locking when creating a new complain profile. apparmor: fix profile attachment for special unconfined profiles apparmor: ensure that undecidable profile attachments fail apparmor: fix leak of null profile name if profile allocation fails apparmor: remove unused redundant variable stop apparmor: Fix bool initialization/comparison apparmor: initialized returned struct aa_perms apparmor: fix spelling mistake: "resoure" -> "resource" | 24 November 2017, 06:48:26 UTC |
ce44cd8 | James Morris | 24 November 2017, 00:54:11 UTC | Merge tag 'keys-next-20171123' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into next-keys Merge keys subsystem changes from David Howells, for v4.15. | 24 November 2017, 00:54:11 UTC |
fd2fa6c | Bjorn Helgaas | 22 November 2017, 22:13:37 UTC | x86/PCI: Remove unused HyperTransport interrupt support There are no in-tree callers of ht_create_irq(), the driver interface for HyperTransport interrupts, left. Remove the unused entry point and all the supporting code. See 8b955b0dddb3 ("[PATCH] Initial generic hypertransport interrupt support"). Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-pci@vger.kernel.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Link: https://lkml.kernel.org/r/20171122221337.3877.23362.stgit@bhelgaas-glaptop.roam.corp.google.com | 23 November 2017, 19:18:18 UTC |
e2a5dca | Borislav Petkov | 23 November 2017, 09:19:51 UTC | x86/umip: Fix insn_get_code_seg_params()'s return value In order to save on redundant structs definitions insn_get_code_seg_params() was made to return two 4-bit values in a char but clang complains: arch/x86/lib/insn-eval.c:780:10: warning: implicit conversion from 'int' to 'char' changes value from 132 to -124 [-Wconstant-conversion] return INSN_CODE_SEG_PARAMS(4, 8); ~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~ ./arch/x86/include/asm/insn-eval.h:16:57: note: expanded from macro 'INSN_CODE_SEG_PARAMS' #define INSN_CODE_SEG_PARAMS(oper_sz, addr_sz) (oper_sz | (addr_sz << 4)) Those two values do get picked apart afterwards the opposite way of how they were ORed so wrt to the LSByte, the return value is the same. But this function returns -EINVAL in the error case, which is an int. So make it return an int which is the native word size anyway and thus fix the clang warning. Reported-by: Kees Cook <keescook@google.com> Reported-by: Nick Desaulniers <nick.desaulniers@gmail.com> Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: ricardo.neri-calderon@linux.intel.com Link: https://lkml.kernel.org/r/20171123091951.1462-1-bp@alien8.de | 23 November 2017, 19:17:59 UTC |
69550d4 | Chao Fan | 23 November 2017, 09:08:47 UTC | x86/boot/KASLR: Remove unused variable There are two variables "rc" in mem_avoid_memmap. One at the top of the function and another one inside the while() loop. Drop the outer one as it is unused. Cleanup some whitespace damage while at it. Signed-off-by: Chao Fan <fanc.fnst@cn.fujitsu.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: gregkh@linuxfoundation.org Cc: n-horiguchi@ah.jp.nec.com Cc: keescook@chromium.org Link: https://lkml.kernel.org/r/20171123090847.15293-1-fanc.fnst@cn.fujitsu.com | 23 November 2017, 19:17:59 UTC |
75f1133 | Kees Cook | 22 November 2017, 20:56:45 UTC | genirq/matrix: Make - vs ?: Precedence explicit Noticed with a Clang build. This improves the readability of the ?: expression, as it has lower precedence than the - expression. Show explicitly that - is evaluated first. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20171122205645.GA27125@beast | 23 November 2017, 19:09:31 UTC |
328bf1b | Vasyl Gomonovych | 20 November 2017, 22:02:41 UTC | irqchip/imgpdc: Use resource_size function on resource object drivers/irqchip/irq-imgpdc.c:327:20-23: WARNING: Suspicious code. resource_size is maybe missing with res_regs Generated by: scripts/coccinelle/api/resource_size.cocci Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: marc.zyngier@arm.com Cc: jason@lakedaemon.net Link: https://lkml.kernel.org/r/1511215361-8279-1-git-send-email-gomonovych@gmail.com | 23 November 2017, 19:09:12 UTC |
e9990d7 | Colin Ian King | 17 November 2017, 18:35:53 UTC | irqchip/qcom: Fix u32 comparison with value less than zero The comparison of u32 nregs being less than zero is never true since nregs is unsigned. Fix this by making nregs a signed integer. Fixes: f20cc9b00c7b ("irqchip/qcom: Add IRQ combiner driver") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: kernel-janitors@vger.kernel.org Cc: Jason Cooper <jason@lakedaemon.net> Link: https://lkml.kernel.org/r/20171117183553.2739-1-colin.king@canonical.com | 23 November 2017, 19:03:58 UTC |
9ed3380 | David S. Miller | 23 November 2017, 18:37:03 UTC | Merge branch 'ipvlan-Fix-insufficient-skb-linear-check' Gao Feng says: ==================== ipvlan: Fix insufficient skb linear check The current ipvlan codes use pskb_may_pull to get the skb linear header in func ipvlan_get_L3_hdr, but the size isn't enough for arp and ipv6 icmp. So it may access the unexpected momory in ipvlan_addr_lookup. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 18:37:03 UTC |
747a713 | Gao Feng | 23 November 2017, 03:47:12 UTC | ipvlan: Fix insufficient skb linear check for ipv6 icmp In the function ipvlan_get_L3_hdr, current codes use pskb_may_pull to make sure the skb header has enough linear room for ipv6 header. But it would use the latter memory directly without linear check when it is icmp. So it still may access the unepxected memory in ipvlan_addr_lookup. Now invoke the pskb_may_pull again if it is ipv6 icmp. Signed-off-by: Gao Feng <gfree.wind@vip.163.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 18:37:02 UTC |
5fc9220 | Gao Feng | 23 November 2017, 03:47:11 UTC | ipvlan: Fix insufficient skb linear check for arp In the function ipvlan_get_L3_hdr, current codes use pskb_may_pull to make sure the skb header has enough linear room for arp header. But it would access the arp payload in func ipvlan_addr_lookup. So it still may access the unepxected memory. Now use arp_hdr_len(port->dev) instead of the arp header as the param. Signed-off-by: Gao Feng <gfree.wind@vip.163.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 18:37:02 UTC |
f9094b7 | Hangbin Liu | 23 November 2017, 03:27:24 UTC | geneve: only configure or fill UDP_ZERO_CSUM6_RX/TX info when CONFIG_IPV6 Stefano pointed that configure or show UDP_ZERO_CSUM6_RX/TX info doesn't make sense if we haven't enabled CONFIG_IPV6. Fix it by adding if IS_ENABLED(CONFIG_IPV6) check. Fixes: abe492b4f50c ("geneve: UDP checksum configuration via netlink") Fixes: fd7eafd02121 ("geneve: fix fill_info when link down") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 18:29:22 UTC |
d6efab6 | David S. Miller | 23 November 2017, 18:06:42 UTC | Merge tag 'wireless-drivers-for-davem-2017-11-22' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers Kalle Valo says: ==================== wireless-drivers fixes for 4.15 First set of fixes for 4.15. Most important here is the iwlwifi fix for scan command firmware interface change. ath10k * fix CCMP-256, GCMP and GCMP-256 in raw mode, it was never working wcn36xx * fix device tree node search iwlwifi * fix a regression with firmware API change of scan cmd (introduced in firmware version 34) * add a bunch of PCI IDs and fix configuration structs for A000 devices * fix the exported firmware name strings for 9000 and A000 devices ==================== Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 18:06:42 UTC |
003cd77 | David S. Miller | 23 November 2017, 17:53:38 UTC | Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue Jeff Kirsher says: ==================== Intel Wired LAN Driver Fixes 2017-11-21 This series contains fixes for igb/vf, ixgbe/vf, i40e/vf and fm10k. Jake fixes a regression issue with older firmware, where we were using the NVM lock to synchronize NVM reads for all devices and firmware versions, yet this caused issues with older firmware prior to version 1.5. Fixed this by only grabbing the lock for newer devices and firmware version 1.5 or newer. Zijie Pan fixes the calculation of the i40e VF MAC addresses, where it was possible to increment to the next MAC entry without calling i40e_add_mac_filter(). Amritha removes the upper limit of 64 queues on a channel VSI since the upper bound is determined by the VSI's num_queue_pairs. Filip fixes an issue during FLR resets, where should have been checking for upcoming core reset and if so, just return with I40E_ERR_NOT_READY. Alan fixes the notifying clients of l2 parameters by copying the parameters to the client instance struct and re-organizes the priority in which the client tasks fire so that if the flag for notifying l2 params is set, it will trigger before the client open task. Also fixed the promiscuous settings after reset for all the VSI's. Brian King from IBM fixes an issue seen on Power systems which would result in skb list corruption and eventual kernel oops. Brian provides the same fix for nearly all our drivers, to replace the read_barrier_depends with smp_rmb() to ensure loads are ordered with respect to the load of tx_buffer->next_to_watch. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 17:53:38 UTC |
4b52d01 | Florian Fainelli | 22 November 2017, 01:37:46 UTC | net: dsa: bcm_sf2: Clear IDDQ_GLOBAL_PWR bit for PHY The PHY on BCM7278 has an additional bit that needs to be cleared: IDDQ_GLOBAL_PWR, without doing this, the PHY remains stuck in reset out of suspend/resume cycles. Fixes: 0fe9933804eb ("net: dsa: bcm_sf2: Add support for BCM7278 integrated switch") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 17:49:05 UTC |
e4be7ba | David S. Miller | 23 November 2017, 17:33:01 UTC | Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== pull-request: bpf 2017-11-23 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Several BPF offloading fixes, from Jakub. Among others: - Limit offload to cls_bpf and XDP program types only. - Move device validation into the driver and don't make any assumptions about the device in the classifier due to shared blocks semantics. - Don't pass offloaded XDP program into the driver when it should be run in native XDP instead. Offloaded ones are not JITed for the host in such cases. - Don't destroy device offload state when moved to another namespace. - Revert dumping offload info into user space for now, since ifindex alone is not sufficient. This will be redone properly for bpf-next tree. 2) Fix test_verifier to avoid using bpf_probe_write_user() helper in test cases, since it's dumping a warning into kernel log which may confuse users when only running tests. Switch to use bpf_trace_printk() instead, from Yonghong. 3) Several fixes for correcting ARG_CONST_SIZE_OR_ZERO semantics before it becomes uabi, from Gianluca. More specifically: - Add a type ARG_PTR_TO_MEM_OR_NULL that is used only by bpf_csum_diff(), where the argument is either a valid pointer or NULL. The subsequent ARG_CONST_SIZE_OR_ZERO then enforces a valid pointer in case of non-0 size or a valid pointer or NULL in case of size 0. Given that, the semantics for ARG_PTR_TO_MEM in combination with ARG_CONST_SIZE_OR_ZERO are now such that in case of size 0, the pointer must always be valid and cannot be NULL. This fix in semantics allows for bpf_probe_read() to drop the recently added size == 0 check in the helper that would become part of uabi otherwise once released. At the same time we can then fix bpf_probe_read_str() and bpf_perf_event_output() to use ARG_CONST_SIZE_OR_ZERO instead of ARG_CONST_SIZE in order to fix recently reported issues by Arnaldo et al, where LLVM optimizes two boundary checks into a single one for unknown variables where the verifier looses track of the variable bounds and thus rejects valid programs otherwise. 4) A fix for the verifier for the case when it detects comparison of two constants where the branch is guaranteed to not be taken at runtime. Verifier will rightfully prune the exploration of such paths, but we still pass the program to JITs, where they would complain about using reserved fields, etc. Track such dead instructions and sanitize them with mov r0,r0. Rejection is not possible since LLVM may generate them for valid C code and doesn't do as much data flow analysis as verifier. For bpf-next we might implement removal of such dead code and adjust branches instead. Fix from Alexei. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 17:33:01 UTC |
0c19f84 | Willem de Bruijn | 21 November 2017, 15:22:25 UTC | net: accept UFO datagrams from tuntap and packet Tuntap and similar devices can inject GSO packets. Accept type VIRTIO_NET_HDR_GSO_UDP, even though not generating UFO natively. Processes are expected to use feature negotiation such as TUNSETOFFLOAD to detect supported offload types and refrain from injecting other packets. This process breaks down with live migration: guest kernels do not renegotiate flags, so destination hosts need to expose all features that the source host does. Partially revert the UFO removal from 182e0b6b5846~1..d9d30adf5677. This patch introduces nearly(*) no new code to simplify verification. It brings back verbatim tuntap UFO negotiation, VIRTIO_NET_HDR_GSO_UDP insertion and software UFO segmentation. It does not reinstate protocol stack support, hardware offload (NETIF_F_UFO), SKB_GSO_UDP tunneling in SKB_GSO_SOFTWARE or reception of VIRTIO_NET_HDR_GSO_UDP packets in tuntap. To support SKB_GSO_UDP reappearing in the stack, also reinstate logic in act_csum and openvswitch. Achieve equivalence with v4.13 HEAD by squashing in commit 939912216fa8 ("net: skb_needs_check() removes CHECKSUM_UNNECESSARY check for tx.") and reverting commit 8d63bee643f1 ("net: avoid skb_warn_bad_offload false positives on UFO"). (*) To avoid having to bring back skb_shinfo(skb)->ip6_frag_id, ipv6_proxy_select_ident is changed to return a __be32 and this is assigned directly to the frag_hdr. Also, SKB_GSO_UDP is inserted at the end of the enum to minimize code churn. Tested Booted a v4.13 guest kernel with QEMU. On a host kernel before this patch `ethtool -k eth0` shows UFO disabled. After the patch, it is enabled, same as on a v4.13 host kernel. A UFO packet sent from the guest appears on the tap device: host: nc -l -p -u 8000 & tcpdump -n -i tap0 guest: dd if=/dev/zero of=payload.txt bs=1 count=2000 nc -u 192.16.1.1 8000 < payload.txt Direct tap to tap transmission of VIRTIO_NET_HDR_GSO_UDP succeeds, packets arriving fragmented: ./with_tap_pair.sh ./tap_send_ufo tap0 tap1 (from https://github.com/wdebruij/kerneltools/tree/master/tests) Changes v1 -> v2 - simplified set_offload change (review comment) - documented test procedure Link: http://lkml.kernel.org/r/<CAF=yD-LuUeDuL9YWPJD9ykOZ0QCjNeznPDr6whqZ9NGMNF12Mw@mail.gmail.com> Fixes: fb652fdfe837 ("macvlan/macvtap: Remove NETIF_F_UFO advertisement.") Reported-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:37:35 UTC |
9e77d7a | Tobias Jakobi | 21 November 2017, 15:15:57 UTC | net: realtek: r8169: implement set_link_ksettings() Commit 6fa1ba61520576cf1346c4ff09a056f2950cb3bf partially implemented the new ethtool API, by replacing get_settings() with get_link_ksettings(). This breaks ethtool, since the userspace tool (according to the new API specs) never tries the legacy set() call, when the new get() call succeeds. All attempts to chance some setting from userspace result in: > Cannot set new settings: Operation not supported Implement the missing set() call. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:36:31 UTC |
98d1129 | David Ahern | 21 November 2017, 15:08:57 UTC | net: ipv6: Fixup device for anycast routes during copy Florian reported a breakage with anycast routes due to commit 4832c30d5458 ("net: ipv6: put host and anycast routes on device with address"). Prior to this commit anycast routes were added against the loopback device causing repetitive route entries with no insight into why they existed. e.g.: $ ip -6 ro ls table local type anycast anycast 2001:db8:1:: dev lo proto kernel metric 0 pref medium anycast 2001:db8:2:: dev lo proto kernel metric 0 pref medium anycast fe80:: dev lo proto kernel metric 0 pref medium anycast fe80:: dev lo proto kernel metric 0 pref medium The point of commit 4832c30d5458 is to add the routes using the device with the address which is causing the route to be added. e.g.,: $ ip -6 ro ls table local type anycast anycast 2001:db8:1:: dev eth1 proto kernel metric 0 pref medium anycast 2001:db8:2:: dev eth2 proto kernel metric 0 pref medium anycast fe80:: dev eth2 proto kernel metric 0 pref medium anycast fe80:: dev eth1 proto kernel metric 0 pref medium For traffic to work as it did before, the dst device needs to be switched to the loopback when the copy is created similar to local routes. Fixes: 4832c30d5458 ("net: ipv6: put host and anycast routes on device with address") Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:34:52 UTC |
9477fef | David S. Miller | 23 November 2017, 16:33:34 UTC | Merge branch 'smc-fixes-for-smc-buffer-handling' Ursula Braun says: ==================== net/smc: fixes for smc buffer handling here are 2 cleanup patches for smc buffer handling. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:33:34 UTC |
6887037 | Geert Uytterhoeven | 21 November 2017, 12:23:54 UTC | net/smc: Fix preinitialization of buf_desc in __smc_buf_create() With gcc-4.1.2: net/smc/smc_core.c: In function ‘__smc_buf_create’: net/smc/smc_core.c:567: warning: ‘bufsize’ may be used uninitialized in this function Indeed, if the for-loop is never executed, bufsize is used uninitialized. In addition, buf_desc is stored for later use, while it is still a NULL pointer. Before, error handling was done by checking if buf_desc is non-NULL. The cleanup changed this to an error check, but forgot to update the preinitialization of buf_desc to an error pointer. Update the preinitializatin of buf_desc to fix this. Fixes: b33982c3a6838d13 ("net/smc: cleanup function __smc_buf_create()") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:33:34 UTC |
4e1061f | Ursula Braun | 21 November 2017, 12:23:53 UTC | net/smc: use sk_rcvbuf as start for rmb creation Commit 3e034725c0d8 ("net/smc: common functions for RMBs and send buffers") merged handling of SMC receive and send buffers. It introduced sk_buf_size as merged start value for size determination. But since sk_buf_size is not used at all, sk_sndbuf is erroneously used as start for rmb creation. This patch makes sure, sk_buf_size is really used as intended, and sk_rcvbuf is used as start value for rmb creation. Fixes: 3e034725c0d8 ("net/smc: common functions for RMBs and send buffers") Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Hans Wippel <hwippel@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:33:34 UTC |
bbfcd77 | Ido Schimmel | 21 November 2017, 07:50:12 UTC | ipv6: Do not consider linkdown nexthops during multipath When the 'ignore_routes_with_linkdown' sysctl is set, we should not consider linkdown nexthops during route lookup. While the code correctly verifies that the initially selected route ('match') has a carrier, it does not perform the same check in the subsequent multipath selection, resulting in a potential packet loss. In case the chosen route does not have a carrier and the sysctl is set, choose the initially selected route. Fixes: 35103d11173b ("net: ipv6 sysctl option to ignore routes when nexthop link is down") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:26:47 UTC |
d7aa04a | Roman Kapl | 20 November 2017, 21:21:13 UTC | net: sched: fix crash when deleting secondary chains If you flush (delete) a filter chain other than chain 0 (such as when deleting the device), the kernel may run into a use-after-free. The chain refcount must not be decremented unless we are sure we are done with the chain. To reproduce the bug, run: ip link add dtest type dummy tc qdisc add dev dtest ingress tc filter add dev dtest chain 1 parent ffff: flower ip link del dtest Introduced in: commit f93e1cdcf42c ("net/sched: fix filter flushing"), but unless you have KAsan or luck, you won't notice it until commit 0dadc117ac8b ("cls_flower: use tcf_exts_get_net() before call_rcu()") Fixes: f93e1cdcf42c ("net/sched: fix filter flushing") Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Roman Kapl <code@rkapl.cz> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:25:37 UTC |
0cc0350 | Jesse Chan | 20 November 2017, 20:57:42 UTC | net: phy: cortina: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE This change resolves a new compile-time warning when built as a loadable module: WARNING: modpost: missing MODULE_LICENSE() in drivers/net/phy/cortina.o see include/linux/module.h for more information This adds the license as "GPL", which matches the header of the file. MODULE_DESCRIPTION and MODULE_AUTHOR are also added. Signed-off-by: Jesse Chan <jc@linux.com> Signed-off-by: David S. Miller <davem@davemloft.net> | 23 November 2017, 16:23:49 UTC |
866c9b9 | Thomas Gleixner | 23 November 2017, 15:29:05 UTC | Merge tag 'for-linus-timers-conversion-final-v4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into timers/urgent Pull the last batch of manual timer conversions from Kees Cook: - final batch of "non trivial" timer conversions (multi-tree dependencies, things Coccinelle couldn't handle, etc). - treewide conversions via Coccinelle, in 4 steps: - DEFINE_TIMER() functions converted to struct timer_list * argument - init_timer() -> setup_timer() - setup_timer() -> timer_setup() - setup_timer() -> timer_setup() (with a single embedded structure) - deprecated timer API removals (init_timer(), setup_*timer()) - finalization of new API (remove global casts) | 23 November 2017, 15:29:05 UTC |
10aaa3b | Masahiro Yamada | 23 November 2017, 14:25:26 UTC | kbuild: drop $(extra-y) from real-objs-y $(real-objs-y) in only used in scripts/Makefile.build to form "targets", but $(extra-y) is added to "targets" in another line. We do not need to add $(extra-y) twice. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> | 23 November 2017, 14:29:26 UTC |
ef46d9b | Masahiro Yamada | 16 November 2017, 16:49:13 UTC | kbuild: clean up *.i and *.lst patterns by make clean *.i and *.lst are supported by the single target build. Clean up them. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> | 23 November 2017, 14:12:05 UTC |
ebaad7d | Masahiro Yamada | 15 November 2017, 09:19:20 UTC | kbuild: rpm: prompt to use "rpm-pkg" if "rpm" target is used The "rpm" has been kept for backward compatibility since pre-git era. I am planning to remove it after the Linux 4.18 release. Annouce the end of the support, prompting to use "rpm-pkg" instead. If you use "rpm", it will work like "rpm-pkg", but warning messages will be displayed as follows: WARNING: "rpm" target will be removed after Linux 4.18 Please use "rpm-pkg" instead. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> | 23 November 2017, 14:12:05 UTC |
2dbc644 | Masahiro Yamada | 15 November 2017, 09:17:07 UTC | kbuild: pkg: use --transform option to prefix paths in tar For rpm-pkg and deb-pkg, a source tar file is created. All paths in the archive must be prefixed with the base name of the tar so that everything is contained in the directory when you extract it. Currently, scripts/package/Makefile uses a symlink for that, and removes it after the tar is created. If you terminate the build during the tar creation, the symlink is left over. Then, at the next package build, you will see a warning like follows: ln: '.' and 'kernel-4.14.0+/.' are the same file It is possible to fix it by adding -n (--no-dereference) option to the "ln" command, but a cleaner way is to use --transform option of "tar" command. This option is GNU extension, but it should not hurt to use it in the Linux build system. The 'S' flag is needed to exclude symlinks from the path fixup. Without it, symlinks in the kernel are broken. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> | 23 November 2017, 14:12:04 UTC |
d7059ca | Masahiro Yamada | 14 November 2017, 11:38:07 UTC | coccinelle: fix parallel build with CHECK=scripts/coccicheck The command "make -j8 C=1 CHECK=scripts/coccicheck" produces lots of "coccicheck failed" error messages. Julia Lawall explained the Coccinelle behavior as follows: "The problem on the Coccinelle side is that it uses a subdirectory with the name of the semantic patch to store standard output and standard error for the different threads. I didn't want to use a name with the pid, so that one could easily find this information while Coccinelle is running. Normally the subdirectory is cleaned up when Coccinelle completes, so there is only one of them at a time. Maybe it is best to just add the pid. There is the risk that these subdirectories will accumulate if Coccinelle crashes in a way such that they don't get cleaned up, but Coccinelle could print a warning if it detects this case, rather than failing." When scripts/coccicheck is used as CHECK tool and -j option is given to Make, the whole of build process runs in parallel. So, multiple processes try to get access to the same subdirectory. I notice spatch creates the subdirectory only when it runs in parallel (i.e. --jobs <N> is given and <N> is greater than 1). Setting NPROC=1 is a reasonable solution; spatch does not create the subdirectory. Besides, ONLINE=1 mode takes a single file input for each spatch invocation, so there is no reason to parallelize it in the first place. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Julia Lawall <Julia.Lawall@lip6.fr> | 23 November 2017, 14:12:03 UTC |
88127da | Heinrich Schuchardt | 08 November 2017, 21:09:59 UTC | kconfig/symbol.c: use correct pointer type argument for sizeof sym_arr is of type struct symbol **. So in malloc we need sizeof(struct symbol *). The problem was indicated by coccinelle. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> | 23 November 2017, 14:12:02 UTC |
c131187 | Alexei Starovoitov | 23 November 2017, 00:42:05 UTC | bpf: fix branch pruning logic when the verifier detects that register contains a runtime constant and it's compared with another constant it will prune exploration of the branch that is guaranteed not to be taken at runtime. This is all correct, but malicious program may be constructed in such a way that it always has a constant comparison and the other branch is never taken under any conditions. In this case such path through the program will not be explored by the verifier. It won't be taken at run-time either, but since all instructions are JITed the malicious program may cause JITs to complain about using reserved fields, etc. To fix the issue we have to track the instructions explored by the verifier and sanitize instructions that are dead at run time with NOPs. We cannot reject such dead code, since llvm generates it for valid C code, since it doesn't do as much data flow analysis as the verifier does. Fixes: 17a5267067f3 ("bpf: verifier (add verifier core)") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> | 23 November 2017, 09:56:35 UTC |
9ceace3 | Vijendar Mukunda | 23 November 2017, 14:37:00 UTC | ALSA: hda: Add Raven PCI ID This commit adds PCI ID for Raven platform Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> | 23 November 2017, 09:17:59 UTC |
2d7fe61 | Kailang Yang | 22 November 2017, 07:21:32 UTC | ALSA: hda/realtek - Fix ALC700 family no sound issue It maybe the typo for ALC700 support patch. To fix the bit value on this patch. Fixes: 6fbae35a3170 ("ALSA: hda/realtek - Add support for new codecs ALC700/ALC701/ALC703") Signed-off-by: Kailang Yang <kailang@realtek.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> | 23 November 2017, 07:57:37 UTC |
5a78775 | Linus Torvalds | 23 November 2017, 07:09:18 UTC | Merge tag 'pwm/for-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "The changes for this release include power management improvements for the pwm-img driver, support for the backup mode on pwm-atmel-tcb as well as support for more hardware with the R-Car and Mediatek drivers. To round things off there's a bit of cleanup for sunxi and stm32-lp" * tag 'pwm/for-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: stm32-lp: Remove pwm_is_enabled() check before calling pwm_disable() pwm: mediatek: Add MT2712/MT7622 support pwm: sunxi: Use of_device_get_match_data() pwm: atmel-tcb: Support backup mode dt-bindings: pwm: Add R-Car D3 device tree bindings pwm: img: Add runtime PM pwm: img: Add suspend / resume handling | 23 November 2017, 07:09:18 UTC |
1b8c5cd | Linus Torvalds | 23 November 2017, 06:58:23 UTC | Merge tag 'rtc-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "There is nothing scary this cycle, mostly driver fixes and updates. The core fix has been in for a while and has been tested on multiple kernel revisions by multiple teams. Core: - Fix setting the alarm to the next expiring timer New drivers: - Mediatek MT7622 RTC - NXP PCF85363 - Spreadtrum SC27xx PMIC RTC Drivers updates: - Use generic nvmem to expose the Non volatile ram for ds1305, ds1511, m48t86 and omap - abx80x: solve possible race condition at probe - armada38x: support trimming the RTC oscillator - at91rm9200: fix reading the alarm value at boot - ds1511: allow waking platform - m41t80: rework square wave output - pcf8523: support trimming the RTC oscillator - pcf8563: fix clock output rate - pl031: make interrupt optional - xgene: fix suspend/resume" * tag 'rtc-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits) dt-bindings: rtc: imxdi: Improve the bindings text rtc: sc27xx: Add Spreadtrum SC27xx PMIC RTC driver dt-bindings: rtc: Add Spreadtrum SC27xx RTC documentation rtc: at91rm9200: fix reading alarm value rtc: at91rm9200: stop calculating yday in at91_rtc_readalarm rtc: sysfs: Use time64_t variables to set time/alarm rtc: xgene: mark PM functions as __maybe_unused rtc: xgene: Fix suspend/resume rtc: pcf8563: don't alway enable the alarm rtc: pcf8563: fix output clock rate rtc: rx8010: Fix for incorrect return value rtc: rx8010: Specify correct address for RX8010_RESV31 rtc: rx8010: Remove duplicate define rtc: m41t80: remove unneeded checks from m41t80_sqw_set_rate rtc: m41t80: avoid i2c read in m41t80_sqw_is_prepared rtc: m41t80: avoid i2c read in m41t80_sqw_recalc_rate rtc: m41t80: fix m41t80_sqw_round_rate return value rtc: m41t80: m41t80_sqw_set_rate should return 0 on success rtc: add support for NXP PCF85363 real-time clock rtc: omap: Support scratch registers ... | 23 November 2017, 06:58:23 UTC |
ca37e57 | Andy Lutomirski | 23 November 2017, 04:39:16 UTC | x86/entry/64: Add missing irqflags tracing to native_load_gs_index() Running this code with IRQs enabled (where dummy_lock is a spinlock): static void check_load_gs_index(void) { /* This will fail. */ load_gs_index(0xffff); spin_lock(&dummy_lock); spin_unlock(&dummy_lock); } Will generate a lockdep warning. The issue is that the actual write to %gs would cause an exception with IRQs disabled, and the exception handler would, as an inadvertent side effect, update irqflag tracing to reflect the IRQs-off status. native_load_gs_index() would then turn IRQs back on and return with irqflag tracing still thinking that IRQs were off. The dummy lock-and-unlock causes lockdep to notice the error and warn. Fix it by adding the missing tracing. Apparently nothing did this in a context where it mattered. I haven't tried to find a code path that would actually exhibit the warning if appropriately nasty user code were running. I suspect that the security impact of this bug is very, very low -- production systems don't run with lockdep enabled, and the warning is mostly harmless anyway. Found during a quick audit of the entry code to try to track down an unrelated bug that Ingo found in some still-in-development code. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bpetkov@suse.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/e1aeb0e6ba8dd430ec36c8a35e63b429698b4132.1511411918.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> | 23 November 2017, 06:54:25 UTC |
14b661e | Linus Torvalds | 23 November 2017, 06:46:06 UTC | Merge tag 'for-linus-20171120' of git://git.infradead.org/linux-mtd Pull MTD updates from Richard Weinberger: "General changes: - Unconfuse get_unmapped_area and point/unpoint driver methods - New partition parser: sharpslpart - Kill GENERIC_IO - Various fixes NAND changes: - Add a flag to mark NANDs that require 3 address cycles to encode a page address - Set a default ECC/free layout when NAND_ECC_NONE is requested - Fix a bug in panic_nand_write() - Another batch of cleanups for the denali driver - Fix PM support in the atmel driver - Remove support for platform data in the omap driver - Fix subpage write in the omap driver - Fix irq handling in the mtk driver - Change link order of mtk_ecc and mtk_nand drivers to speed up boot time - Change log level of ECC error messages in the mxc driver - Patch the pxa3xx driver to support Armada 8k platforms - Add BAM DMA support to the qcom driver - Convert gpio-nand to the GPIO desc API - Fix ECC handling in the mt29f driver SPI-NOR changes: - Introduce system power management support - New mechanism to select the proper .quad_enable() hook by JEDEC ID, when needed, instead of only by manufacturer ID - Add support to new memory parts from Gigadevice, Winbond, Macronix and Everspin - Maintainance for Cadence, Intel, Mediatek and STM32 drivers" * tag 'for-linus-20171120' of git://git.infradead.org/linux-mtd: (85 commits) mtd: Avoid probe failures when mtd->dbg.dfs_dir is invalid mtd: sharpslpart: Add sharpslpart partition parser mtd: Add sanity checks in mtd_write/read_oob() mtd: remove the get_unmapped_area method mtd: implement mtd_get_unmapped_area() using the point method mtd: chips/map_rom.c: implement point and unpoint methods mtd: chips/map_ram.c: implement point and unpoint methods mtd: mtdram: properly handle the phys argument in the point method mtd: mtdswap: fix spelling mistake: 'TRESHOLD' -> 'THRESHOLD' mtd: slram: use memremap() instead of ioremap() kconfig: kill off GENERIC_IO option mtd: Fix C++ comment in include/linux/mtd/mtd.h mtd: constify mtd_partition mtd: plat-ram: Replace manual resource management by devm mtd: nand: Fix writing mtdoops to nand flash. mtd: intel-spi: Add Intel Lewisburg PCH SPI super SKU PCI ID mtd: nand: mtk: fix infinite ECC decode IRQ issue mtd: spi-nor: Add support for mr25h128 mtd: nand: mtk: change the compile sequence of mtk_nand.o and mtk_ecc.o mtd: spi-nor: enable 4B opcodes for mx66l51235l ... | 23 November 2017, 06:46:06 UTC |
3f3211e | Linus Torvalds | 23 November 2017, 06:42:42 UTC | Merge tag 'xfs-4.15-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull xfs fixes from Darrick Wong: - Fix a memory leak in the new in-core extent map - Refactor the xfs_dev_t conversions for easier xfsprogs porting * tag 'xfs-4.15-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: abstract out dev_t conversions xfs: fix memory leak in xfs_iext_free_last_leaf | 23 November 2017, 06:42:42 UTC |
2753278 | Linus Torvalds | 23 November 2017, 06:20:02 UTC | Merge branch 'work.whack-a-mole' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull mode_t whack-a-mole from Al Viro: "For all internal uses we want umode_t, which is arch-independent; mode_t (or __kernel_mode_t, for that matter) is wrong outside of userland ABI. Unfortunately, that crap keeps coming back and needs to be put down from time to time..." * 'work.whack-a-mole' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: mode_t whack-a-mole: task_dump_owner() | 23 November 2017, 06:20:02 UTC |
d18bee4 | Linus Torvalds | 23 November 2017, 06:17:54 UTC | Merge branch '9p-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull 9p filesystemfixes from Al Viro: "Several 9p fixes" * '9p-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: 9p: Fix missing commas in mount options net/9p: Switch to wait_event_killable() fs/9p: Compare qid.path in v9fs_test_inode | 23 November 2017, 06:17:54 UTC |
ae6b289 | Chris Fries | 07 November 2017, 19:46:13 UTC | kbuild: Set KBUILD_CFLAGS before incl. arch Makefile Set the clang KBUILD_CFLAGS up before including arch/ Makefiles, so that ld-options (etc.) can work correctly. This fixes errors with clang such as ld-options trying to CC against your host architecture, but LD trying to link against your target architecture. Signed-off-by: Chris Fries <cfries@google.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Tested-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> | 23 November 2017, 04:12:37 UTC |
98ecf1a | Rob Clark | 16 November 2017, 14:05:57 UTC | dt-bindings: remove file that was added accidentally I think this snuck in when I applied the patch for f97decac5f4c (didn't apply cleanly, required some manual applying + git-add). It is unused and shouldn't be here. My bad. Fixes: f97decac5f4c "drm/msm: Support multiple ringbuffers" Signed-off-by: Rob Clark <robdclark@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com> | 23 November 2017, 04:10:39 UTC |
acb1d8e | Dave Airlie | 16 October 2017, 04:26:19 UTC | drm/edid: quirk HTC vive headset as non-desktop. [v2] This uses the EDID info from my HTC Vive to mark it as non-desktop. v2: Change description from non-standard to non-desktop Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Dave Airlie <airlied@redhat.com> | 23 November 2017, 02:45:31 UTC |
b5f0538 | Dave Airlie | 16 October 2017, 04:08:39 UTC | drm/fb: add support for not enabling fbcon on non-desktop displays [v2] We don't want fbcon to get used on non-desktop dislays, don't pass them as enabled connectors to the fb helper setup. This prevents my HMD from getting disorted fbcon, and from affecting other displays console. v2: Change description from non-standard to non-desktop Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Dave Airlie <airlied@redhat.com> | 23 November 2017, 02:45:30 UTC |
66660d4 | Dave Airlie | 16 October 2017, 04:08:09 UTC | drm: add connector info/property for non-desktop displays [v2] This adds the infrastructure needed to quirk displays using edid and to mark them a non-desktop. A non-desktop display is one which shouldn't normally be included as a part of a desktop environment. This is meant to cover head mounted devices like HTC Vive. v2: Change description from non-standard to non-desktop, add docs Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Dave Airlie <airlied@redhat.com> fixup docs | 23 November 2017, 02:45:25 UTC |
1cee3bc | Dave Airlie | 23 November 2017, 00:56:39 UTC | Merge tag 'tilcdc-4.15-fixes' of https://github.com/jsarha/linux into drm-next tilcdc fixes for v4.15 * tag 'tilcdc-4.15-fixes' of https://github.com/jsarha/linux: drm/tilcdc: Remove obsolete "ti,tilcdc,slave" dts binding support | 23 November 2017, 00:56:39 UTC |
9cae775 | Dave Airlie | 23 November 2017, 00:56:11 UTC | Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next more misc amdgpu fixes. * 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: fix rmmod KCQ disable failed error drm/amdgpu: fix kernel hang when starting VNC server drm/amdgpu: don't skip attributes when powerplay is enabled drm/amd/pp: fix typecast error in powerplay. Revert "drm/radeon: dont switch vt on suspend" drm/amd/amdgpu: fix over-bound accessing in amdgpu_cs_wait_any_fence drm/amd/powerplay: fix unfreeze level smc message for smu7 drm/amdgpu:fix memleak drm/amdgpu:fix memleak in takedown | 23 November 2017, 00:56:11 UTC |
af5ecb5 | Dave Airlie | 22 November 2017, 22:56:34 UTC | Merge tag 'imx-drm-next-2017-10-18' of git://git.pengutronix.de/git/pza/linux into drm-next drm/imx: various cleanups - Switch to drm_*_get/put() helpers - Use correct parallel-display connector enum: DPI instead of VGA - Remove incorrect unit name from device tree binding documentation example - Remove an unused variable * tag 'imx-drm-next-2017-10-18' of git://git.pengutronix.de/git/pza/linux: gpu: ipu-v3: ipu-dc: Remove unused 'di' variable dt-bindings: fsl-imx-drm: Remove incorrect "@di0" usage drm/imx: parallel-display: use correct connector enum drm/imx: switch to drm_*_get(), drm_*_put() helpers | 22 November 2017, 22:56:34 UTC |
2d56131 | Dave Airlie | 22 November 2017, 22:52:38 UTC | Merge tag 'drm/tegra/for-4.15-rc1-fixes' of git://anongit.freedesktop.org/tegra/linux into drm-next drm/tegra: Fixes for v4.15-rc1 This includes an update to the SOR pad clock programming needed because of some changes that went in through the clock tree. * tag 'drm/tegra/for-4.15-rc1-fixes' of git://anongit.freedesktop.org/tegra/linux: drm/tegra: sor: Reimplement pad clock | 22 November 2017, 22:52:38 UTC |
107af8e | Daniel Borkmann | 22 November 2017, 20:40:54 UTC | Merge branch 'bpf-fix-null-arg-semantics' Gianluca Borello says: ==================== This set includes some fixes in semantics and usability issues that emerged recently, and would be good to have them in net before the next release. In particular, ARG_CONST_SIZE_OR_ZERO semantics was recently changed in commit 9fd29c08e520 ("bpf: improve verifier ARG_CONST_SIZE_OR_ZERO semantics") with the goal of letting the compiler generate simpler code that the verifier can more easily accept. To handle this change in semantics, a few checks in some helpers were added, like in commit 9c019e2bc4b2 ("bpf: change helper bpf_probe_read arg2 type to ARG_CONST_SIZE_OR_ZERO"), and those checks are less than ideal because once they make it into a released kernel bpf programs can start relying on them, preventing the possibility of being removed later on. This patch tries to fix the issue by introducing a new argument type ARG_PTR_TO_MEM_OR_NULL that can be used for helpers that can receive a <NULL, 0> tuple. By doing so, we can fix the semantics of the other helpers that don't need <NULL, 0> and can just handle <!NULL, 0>, allowing the code to get rid of those checks. ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> | 22 November 2017, 20:40:55 UTC |
a60dd35 | Gianluca Borello | 22 November 2017, 18:32:56 UTC | bpf: change bpf_perf_event_output arg5 type to ARG_CONST_SIZE_OR_ZERO Commit 9fd29c08e520 ("bpf: improve verifier ARG_CONST_SIZE_OR_ZERO semantics") relaxed the treatment of ARG_CONST_SIZE_OR_ZERO due to the way the compiler generates optimized BPF code when checking boundaries of an argument from C code. A typical example of this optimized code can be generated using the bpf_perf_event_output helper when operating on variable memory: /* len is a generic scalar */ if (len > 0 && len <= 0x7fff) bpf_perf_event_output(ctx, &perf_map, 0, buf, len); 110: (79) r5 = *(u64 *)(r10 -40) 111: (bf) r1 = r5 112: (07) r1 += -1 113: (25) if r1 > 0x7ffe goto pc+6 114: (bf) r1 = r6 115: (18) r2 = 0xffff94e5f166c200 117: (b7) r3 = 0 118: (bf) r4 = r7 119: (85) call bpf_perf_event_output#25 R5 min value is negative, either use unsigned or 'var &= const' With this code, the verifier loses track of the variable. Replacing arg5 with ARG_CONST_SIZE_OR_ZERO is thus desirable since it avoids this quite common case which leads to usability issues, and the compiler generates code that the verifier can more easily test: if (len <= 0x7fff) bpf_perf_event_output(ctx, &perf_map, 0, buf, len); or bpf_perf_event_output(ctx, &perf_map, 0, buf, len & 0x7fff); No changes to the bpf_perf_event_output helper are necessary since it can handle a case where size is 0, and an empty frame is pushed. Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> | 22 November 2017, 20:40:54 UTC |
5c4e120 | Gianluca Borello | 22 November 2017, 18:32:55 UTC | bpf: change bpf_probe_read_str arg2 type to ARG_CONST_SIZE_OR_ZERO Commit 9fd29c08e520 ("bpf: improve verifier ARG_CONST_SIZE_OR_ZERO semantics") relaxed the treatment of ARG_CONST_SIZE_OR_ZERO due to the way the compiler generates optimized BPF code when checking boundaries of an argument from C code. A typical example of this optimized code can be generated using the bpf_probe_read_str helper when operating on variable memory: /* len is a generic scalar */ if (len > 0 && len <= 0x7fff) bpf_probe_read_str(p, len, s); 251: (79) r1 = *(u64 *)(r10 -88) 252: (07) r1 += -1 253: (25) if r1 > 0x7ffe goto pc-42 254: (bf) r1 = r7 255: (79) r2 = *(u64 *)(r10 -88) 256: (bf) r8 = r4 257: (85) call bpf_probe_read_str#45 R2 min value is negative, either use unsigned or 'var &= const' With this code, the verifier loses track of the variable. Replacing arg2 with ARG_CONST_SIZE_OR_ZERO is thus desirable since it avoids this quite common case which leads to usability issues, and the compiler generates code that the verifier can more easily test: if (len <= 0x7fff) bpf_probe_read_str(p, len, s); or bpf_probe_read_str(p, len & 0x7fff, s); No changes to the bpf_probe_read_str helper are necessary since strncpy_from_unsafe itself immediately returns if the size passed is 0. Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> | 22 November 2017, 20:40:54 UTC |
eb33f2c | Gianluca Borello | 22 November 2017, 18:32:54 UTC | bpf: remove explicit handling of 0 for arg2 in bpf_probe_read Commit 9c019e2bc4b2 ("bpf: change helper bpf_probe_read arg2 type to ARG_CONST_SIZE_OR_ZERO") changed arg2 type to ARG_CONST_SIZE_OR_ZERO to simplify writing bpf programs by taking advantage of the new semantics introduced for ARG_CONST_SIZE_OR_ZERO which allows <!NULL, 0> arguments. In order to prevent the helper from actually passing a NULL pointer to probe_kernel_read, which can happen when <NULL, 0> is passed to the helper, the commit also introduced an explicit check against size == 0. After the recent introduction of the ARG_PTR_TO_MEM_OR_NULL type, bpf_probe_read can not receive a pair of <NULL, 0> arguments anymore, thus the check is not needed anymore and can be removed, since probe_kernel_read can correctly handle a <!NULL, 0> call. This also fixes the semantics of the helper before it gets officially released and bpf programs start relying on this check. Fixes: 9c019e2bc4b2 ("bpf: change helper bpf_probe_read arg2 type to ARG_CONST_SIZE_OR_ZERO") Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> | 22 November 2017, 20:40:54 UTC |
db1ac49 | Gianluca Borello | 22 November 2017, 18:32:53 UTC | bpf: introduce ARG_PTR_TO_MEM_OR_NULL With the current ARG_PTR_TO_MEM/ARG_PTR_TO_UNINIT_MEM semantics, an helper argument can be NULL when the next argument type is ARG_CONST_SIZE_OR_ZERO and the verifier can prove the value of this next argument is 0. However, most helpers are just interested in handling <!NULL, 0>, so forcing them to deal with <NULL, 0> makes the implementation of those helpers more complicated for no apparent benefits, requiring them to explicitly handle those corner cases with checks that bpf programs could start relying upon, preventing the possibility of removing them later. Solve this by making ARG_PTR_TO_MEM/ARG_PTR_TO_UNINIT_MEM never accept NULL even when ARG_CONST_SIZE_OR_ZERO is set, and introduce a new argument type ARG_PTR_TO_MEM_OR_NULL to explicitly deal with the NULL case. Currently, the only helper that needs this is bpf_csum_diff_proto(), so change arg1 and arg3 to this new type as well. Also add a new battery of tests that explicitly test the !ARG_PTR_TO_MEM_OR_NULL combination: all the current ones testing the various <NULL, 0> variations are focused on bpf_csum_diff, so cover also other helpers. Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> | 22 November 2017, 20:40:54 UTC |
4d6c51b | Michael Ellerman | 22 November 2017, 12:17:01 UTC | powerpc/64s: Fix Power9 DD2.1 logic in DT CPU features I got the logic wrong in the DT CPU features code when I added the Power9 DD2.1 feature. We should be setting the bit if we detect a DD2.1, not clearing it if we detect a DD2.0. This code isn't actually exercised at the moment so nothing is actually broken. Fixes: 3ffa9d9e2a7c ("powerpc/64s: Fix Power9 DD2.0 workarounds by adding DD2.1 feature") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> | 22 November 2017, 12:17:01 UTC |
73ce9ae | Madhavan Srinivasan | 22 November 2017, 05:15:39 UTC | powerpc/perf: Fix IMC_MAX_PMU macro IMC_MAX_PMU is used for static storage (per_nest_pmu_arr) which holds nest pmu information. Current value for the macro is 32 based on the initial number of nest pmu units supported by the nest microcode. But going forward, microcode could support more nest units. Instead of static storage, patch to fix the code to dynamically allocate an array based on the number of nest imc units found in the device tree. Fixes:8f95faaac56c1 ('powerpc/powernv: Detect and create IMC device') Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> | 22 November 2017, 12:04:23 UTC |
de34787 | Madhavan Srinivasan | 22 November 2017, 05:15:38 UTC | powerpc/perf: Fix pmu_count to count only nest imc pmus "pmu_count" in opal_imc_counters_probe() is intended to hold the number of successful nest imc pmu registerations. But current code also counts other imc units like core_imc and thread_imc. Patch add a check to count only nest imc pmus. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> | 22 November 2017, 12:04:23 UTC |
252eb55 | Christophe Leroy | 21 November 2017, 14:28:20 UTC | powerpc: Fix boot on BOOK3S_32 with CONFIG_STRICT_KERNEL_RWX On powerpc32, patch_instruction() is called by apply_feature_fixups() which is called from early_init() There is the following note in front of early_init(): * Note that the kernel may be running at an address which is different * from the address that it was linked at, so we must use RELOC/PTRRELOC * to access static data (including strings). -- paulus Therefore, slab_is_available() cannot be called yet, and text_poke_area must be addressed with PTRRELOC() Fixes: 95902e6c8864 ("powerpc/mm: Implement STRICT_KERNEL_RWX on PPC32") Cc: stable@vger.kernel.org # v4.14+ Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> | 22 November 2017, 12:04:20 UTC |
d6c0615 | Takashi Iwai | 22 November 2017, 11:34:56 UTC | ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization The previous fix for addressing the breakage in vmaster slave initialization, commit a91d66129fb9 ("ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal"), introduced a new helper to process over each slave kctl. However, this helper passes only the original kctl, not the virtual slave kctl. As a result, HD-audio driver (which is the only user so far) couldn't initialize the slave correctly because it's trying to update the value directly with the original kctl, not with the mapped kctl. This patch fixes the situation again by passing both the mapped slaved and original slave kctls to the function. Luckily there is a single caller as of now, so changing the call signature is no big matter. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=197959 Fixes: a91d66129fb9 ("ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal") Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> | 22 November 2017, 11:34:56 UTC |
f72271e | Brian King | 17 November 2017, 17:05:49 UTC | i40evf: Use smp_rmb rather than read_barrier_depends The original issue being fixed in this patch was seen with the ixgbe driver, but the same issue exists with i40evf as well, as the code is very similar. read_barrier_depends is not sufficient to ensure loads following it are not speculatively loaded out of order by the CPU, which can result in stale data being loaded, causing potential system crashes. Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 22 November 2017, 07:52:38 UTC |
7b8edcc | Brian King | 17 November 2017, 17:05:48 UTC | fm10k: Use smp_rmb rather than read_barrier_depends The original issue being fixed in this patch was seen with the ixgbe driver, but the same issue exists with fm10k as well, as the code is very similar. read_barrier_depends is not sufficient to ensure loads following it are not speculatively loaded out of order by the CPU, which can result in stale data being loaded, causing potential system crashes. Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 22 November 2017, 07:48:39 UTC |
c4cb991 | Brian King | 17 November 2017, 17:05:47 UTC | igb: Use smp_rmb rather than read_barrier_depends The original issue being fixed in this patch was seen with the ixgbe driver, but the same issue exists with igb as well, as the code is very similar. read_barrier_depends is not sufficient to ensure loads following it are not speculatively loaded out of order by the CPU, which can result in stale data being loaded, causing potential system crashes. Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 22 November 2017, 07:47:24 UTC |
1e1f9ca | Brian King | 17 November 2017, 17:05:46 UTC | igbvf: Use smp_rmb rather than read_barrier_depends The original issue being fixed in this patch was seen with the ixgbe driver, but the same issue exists with igbvf as well, as the code is very similar. read_barrier_depends is not sufficient to ensure loads following it are not speculatively loaded out of order by the CPU, which can result in stale data being loaded, causing potential system crashes. Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 22 November 2017, 07:46:04 UTC |
ae0c585 | Brian King | 17 November 2017, 17:05:45 UTC | ixgbevf: Use smp_rmb rather than read_barrier_depends The original issue being fixed in this patch was seen with the ixgbe driver, but the same issue exists with ixgbevf as well, as the code is very similar. read_barrier_depends is not sufficient to ensure loads following it are not speculatively loaded out of order by the CPU, which can result in stale data being loaded, causing potential system crashes. Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 22 November 2017, 07:44:53 UTC |
52c6912 | Brian King | 17 November 2017, 17:05:44 UTC | i40e: Use smp_rmb rather than read_barrier_depends The original issue being fixed in this patch was seen with the ixgbe driver, but the same issue exists with i40e as well, as the code is very similar. read_barrier_depends is not sufficient to ensure loads following it are not speculatively loaded out of order by the CPU, which can result in stale data being loaded, causing potential system crashes. Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 22 November 2017, 07:43:21 UTC |
0a9a17e | Brian King | 17 November 2017, 17:05:43 UTC | ixgbe: Fix skb list corruption on Power systems This patch fixes an issue seen on Power systems with ixgbe which results in skb list corruption and an eventual kernel oops. The following is what was observed: CPU 1 CPU2 ============================ ============================ 1: ixgbe_xmit_frame_ring ixgbe_clean_tx_irq 2: first->skb = skb eop_desc = tx_buffer->next_to_watch 3: ixgbe_tx_map read_barrier_depends() 4: wmb check adapter written status bit 5: first->next_to_watch = tx_desc napi_consume_skb(tx_buffer->skb ..); 6: writel(i, tx_ring->tail); The read_barrier_depends is insufficient to ensure that tx_buffer->skb does not get loaded prior to tx_buffer->next_to_watch, which then results in loading a stale skb pointer. This patch replaces the read_barrier_depends with smp_rmb to ensure loads are ordered with respect to the load of tx_buffer->next_to_watch. Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 22 November 2017, 07:42:03 UTC |
bd5608b | Alan Brady | 14 November 2017, 12:00:52 UTC | i40e: restore promiscuous after reset After a reset we rebuild the VSIs which is going to clobber any promiscuous settings we had before reset. This makes it so that we restore the promiscuous settings we had before reset. Signed-off-by: Alan Brady <alan.brady@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 22 November 2017, 07:40:23 UTC |