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f0c8e44 sayali789 05 August 2016, 05:55:06 UTC Create gau 05 August 2016, 05:55:06 UTC
dd7fd3a Rafael J. Wysocki 05 August 2016, 00:38:44 UTC ACPI / hotplug / PCI: Runtime resume bridges before bus rescans If a PCI bridge (or PCIe port) that is runtime-suspended gets an ACPI hotplug notification, such as a bus check, it has to be resumed before re-scanning the devices below it, or those devices will not be accessible and will be treated as hot-removed. Make that happen and let the bridge suspend again after the bus below it has been re-scanned. This is a replacement for commit 16468c783cb4 ("ACPI / hotplug / PCI: Runtime resume bridge before rescan") that has been reverted, because it introduced a system resume regression (due to missing bridge->pci_dev checks that are necessary in case the notification is targeted at the host bridge) and it is necessary for the code added by commit 006d44e49a25 ("PCI: Add runtime PM support for PCIe ports") to work as expected. Tested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 05 August 2016, 01:33:58 UTC
f8fbd8c Linus Torvalds 05 August 2016, 00:31:20 UTC Merge branch 'akpm' (patches from Andrew) Merge misc fixes from Andrew Morton: "A few late-breaking fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm/memblock.c: fix NULL dereference error MAINTAINERS: update cgroup's document path slub: drop bogus inline for fixup_red_left() powerpc/fsl_rio: fix a missing error code mm: initialise per_cpu_nodestats for all online pgdats at boot mm/memblock: fix a typo in a comment mm: disable CONFIG_MEMORY_HOTPLUG when KASAN is enabled 05 August 2016, 00:31:20 UTC
84e39ee Linus Torvalds 05 August 2016, 00:26:31 UTC Merge tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull second round of rdma updates from Doug Ledford: "This can be split out into just two categories: - fixes to the RDMA R/W API in regards to SG list length limits (about 5 patches) - fixes/features for the Intel hfi1 driver (everything else) The hfi1 driver is still being brought to full feature support by Intel, and they have a lot of people working on it, so that amounts to almost the entirety of this pull request" * tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (84 commits) IB/hfi1: Add cache evict LRU list IB/hfi1: Fix memory leak during unexpected shutdown IB/hfi1: Remove unneeded mm argument in remove function IB/hfi1: Consistently call ops->remove outside spinlock IB/hfi1: Use evict mmu rb operation IB/hfi1: Add evict operation to the mmu rb handler IB/hfi1: Fix TID caching actions IB/hfi1: Make the cache handler own its rb tree root IB/hfi1: Make use of mm consistent IB/hfi1: Fix user SDMA racy user request claim IB/hfi1: Fix error condition that needs to clean up IB/hfi1: Release node on insert failure IB/hfi1: Validate SDMA user iovector count IB/hfi1: Validate SDMA user request index IB/hfi1: Use the same capability state for all shared contexts IB/hfi1: Prevent null pointer dereference IB/hfi1: Rename TID mmu_rb_* functions IB/hfi1: Remove unneeded empty check in hfi1_mmu_rb_unregister() IB/hfi1: Restructure hfi1_file_open IB/hfi1: Make iovec loop index easy to understand ... 05 August 2016, 00:26:31 UTC
0cda611 Linus Torvalds 05 August 2016, 00:10:31 UTC Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull base rdma updates from Doug Ledford: "Round one of 4.8 code: while this is mostly normal, there is a new driver in here (the driver was hosted outside the kernel for several years and is actually a fairly mature and well coded driver). It amounts to 13,000 of the 16,000 lines of added code in here. Summary: - Updates/fixes for iw_cxgb4 driver - Updates/fixes for mlx5 driver - Add flow steering and RSS API - Add hardware stats to mlx4 and mlx5 drivers - Add firmware version API for RDMA driver use - Add the rxe driver (this is a software RoCE driver that makes any Ethernet device a RoCE device) - Fixes for i40iw driver - Support for send only multicast joins in the cma layer - Other minor fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (72 commits) Soft RoCE driver IB/core: Support for CMA multicast join flags IB/sa: Add cached attribute containing SM information to SA port IB/uverbs: Fix race between uverbs_close and remove_one IB/mthca: Clean up error unwind flow in mthca_reset() IB/mthca: NULL arg to pci_dev_put is OK IB/hfi1: NULL arg to sc_return_credits is OK IB/mlx4: Add diagnostic hardware counters net/mlx4: Query performance and diagnostics counters net/mlx4: Add diagnostic counters capability bit Use smaller 512 byte messages for portmapper messages IB/ipoib: Report SG feature regardless of HW UD CSUM capability IB/mlx4: Don't use GFP_ATOMIC for CQ resize struct IB/hfi1: Disable by default IB/rdmavt: Disable by default IB/mlx5: Fix port counter ID association to QP offset IB/mlx5: Fix iteration overrun in GSI qps i40iw: Add NULL check for puda buffer i40iw: Change dup_ack_thresh to u8 i40iw: Remove unnecessary check for moving CQ head ... 05 August 2016, 00:10:31 UTC
fdf1f7f Linus Torvalds 05 August 2016, 00:04:37 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: "The most notable item is IBM virtual SCSI target driver, that was originally ported to target-core back in 2010 by Tomo-san, and has been brought forward to v4.x code by Bryant Ly, Michael Cyr and co over the last months. Also included are two ORDERED task related bug-fixes Bryant + Michael found along the way using ibmvscsis with AIX guests, plus a few miscellaneous target-core + iscsi-target bug-fixes with associated stable tags" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: fix spelling mistake: "limitiation" -> "limitation" target: Fix residual overflow handling in target_complete_cmd_with_length tcm_fc: set and unset FCP_SPPF_TARG_FCN iscsi-target: Fix panic when adding second TCP connection to iSCSI session ibmvscsis: Initial commit of IBM VSCSI Tgt Driver target: Fix ordered task CHECK_CONDITION early exception handling target: Fix ordered task target_setup_cmd_from_cdb exception hang target: Fix max_unmap_lba_count calc overflow target: Fix race between iscsi-target connection shutdown + ABORT_TASK target: Fix missing complete during ABORT_TASK + CMD_T_FABRIC_STOP 05 August 2016, 00:04:37 UTC
e47608a zijun_hu 04 August 2016, 22:32:00 UTC mm/memblock.c: fix NULL dereference error It causes NULL dereference error and failure to get type_a->regions[0] info if parameter type_b of __next_mem_range_rev() == NULL Fix this by checking before dereferring and initializing idx_b to 0 The approach is tested by dumping all types of region via __memblock_dump_all() and __next_mem_range_rev() fixed to UART separately the result is okay after checking the logs. Link: http://lkml.kernel.org/r/57A0320D.6070102@zoho.com Signed-off-by: zijun_hu <zijun_hu@htc.com> Tested-by: zijun_hu <zijun_hu@htc.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 05 August 2016, 00:02:09 UTC
4b16b0c seokhoon.yoon 04 August 2016, 22:31:57 UTC MAINTAINERS: update cgroup's document path cgroup's document path is changed to "cgroup-v1". update it. Link: http://lkml.kernel.org/r/1470322507-5161-1-git-send-email-iamyooon@gmail.com Signed-off-by: seokhoon.yoon <iamyooon@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 05 August 2016, 00:02:09 UTC
117d54d Geert Uytterhoeven 04 August 2016, 22:31:55 UTC slub: drop bogus inline for fixup_red_left() With m68k-linux-gnu-gcc-4.1: include/linux/slub_def.h:126: warning: `fixup_red_left' declared inline after being called include/linux/slub_def.h:126: warning: previous declaration of `fixup_red_left' was here Commit c146a2b98eb5 ("mm, kasan: account for object redzone in SLUB's nearest_obj()") made fixup_red_left() global, but forgot to remove the inline keyword. Fixes: c146a2b98eb5898e ("mm, kasan: account for object redzone in SLUB's nearest_obj()") Link: http://lkml.kernel.org/r/1470256262-1586-1-git-send-email-geert@linux-m68k.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Alexander Potapenko <glider@google.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 05 August 2016, 00:02:09 UTC
380afa3 Dan Carpenter 04 August 2016, 22:31:52 UTC powerpc/fsl_rio: fix a missing error code We should set the error code here rather than incorrectly returning 0. Otherwise static checkers complain. Link: http://lkml.kernel.org/r/20160804053525.GM775@mwanda Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 05 August 2016, 00:02:09 UTC
b4911ea Mel Gorman 04 August 2016, 22:31:49 UTC mm: initialise per_cpu_nodestats for all online pgdats at boot Paul Mackerras and Reza Arbab reported that machines with memoryless nodes fail when vmstats are refreshed. Paul reported an oops as follows Unable to handle kernel paging request for data at address 0xff7a10000 Faulting instruction address: 0xc000000000270cd0 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=2048 NUMA PowerNV Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.7.0-kvm+ #118 task: c000000ff0680010 task.stack: c000000ff0704000 NIP: c000000000270cd0 LR: c000000000270ce8 CTR: 0000000000000000 REGS: c000000ff0707900 TRAP: 0300 Not tainted (4.7.0-kvm+) MSR: 9000000102009033 <SF,HV,VEC,EE,ME,IR,DR,RI,LE,TM[E]> CR: 846b6824 XER: 20000000 CFAR: c000000000008768 DAR: 0000000ff7a10000 DSISR: 42000000 SOFTE: 1 NIP refresh_zone_stat_thresholds+0x80/0x240 LR refresh_zone_stat_thresholds+0x98/0x240 Call Trace: refresh_zone_stat_thresholds+0xb8/0x240 (unreliable) Both supplied potential fixes but one potentially misses checks and another had redundant initialisations. This version initialises per_cpu_nodestats on a per-pgdat basis instead of on a per-zone basis. Link: http://lkml.kernel.org/r/20160804092404.GI2799@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Reported-by: Paul Mackerras <paulus@ozlabs.org> Reported-by: Reza Arbab <arbab@linux.vnet.ibm.com> Tested-by: Reza Arbab <arbab@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 05 August 2016, 00:02:09 UTC
412d000 Alexander Kuleshov 04 August 2016, 22:31:46 UTC mm/memblock: fix a typo in a comment s/accomodate/accommodate/ Link: http://lkml.kernel.org/r/20160804121824.18100-1-kuleshovmail@gmail.com Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 05 August 2016, 00:02:09 UTC
1e18573 zhong jiang 04 August 2016, 22:31:44 UTC mm: disable CONFIG_MEMORY_HOTPLUG when KASAN is enabled At present it is obvious that memory online and offline will fail when KASAN is enabled. So add the condition to limit the memory_hotplug when KASAN is enabled. Link: http://lkml.kernel.org/r/1470063651-29519-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang <zhongjiang@huawei.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 05 August 2016, 00:02:09 UTC
a71e360 Linus Torvalds 04 August 2016, 23:59:06 UTC Merge tag 'nfsd-4.8' of git://linux-nfs.org/~bfields/linux Pull nfsd updates from Bruce Fields: "Highlights: - Trond made a change to the server's tcp logic that allows a fast client to better take advantage of high bandwidth networks, but may increase the risk that a single client could starve other clients; a new sunrpc.svc_rpc_per_connection_limit parameter should help mitigate this in the (hopefully unlikely) event this becomes a problem in practice. - Tom Haynes added a minimal flex-layout pnfs server, which is of no use in production for now--don't build it unless you're doing client testing or further server development" * tag 'nfsd-4.8' of git://linux-nfs.org/~bfields/linux: (32 commits) nfsd: remove some dead code in nfsd_create_locked() nfsd: drop unnecessary MAY_EXEC check from create nfsd: clean up bad-type check in nfsd_create_locked nfsd: remove unnecessary positive-dentry check nfsd: reorganize nfsd_create nfsd: check d_can_lookup in fh_verify of directories nfsd: remove redundant zero-length check from create nfsd: Make creates return EEXIST instead of EACCES SUNRPC: Detect immediate closure of accepted sockets SUNRPC: accept() may return sockets that are still in SYN_RECV nfsd: allow nfsd to advertise multiple layout types nfsd: Close race between nfsd4_release_lockowner and nfsd4_lock nfsd/blocklayout: Make sure calculate signature/designator length aligned xfs: abstract block export operations from nfsd layouts SUNRPC: Remove unused callback xpo_adjust_wspace() SUNRPC: Change TCP socket space reservation SUNRPC: Add a server side per-connection limit SUNRPC: Micro optimisation for svc_data_ready SUNRPC: Call the default socket callbacks instead of open coding SUNRPC: lock the socket while detaching it ... 04 August 2016, 23:59:06 UTC
d58b0d9 Linus Torvalds 04 August 2016, 23:56:16 UTC Merge branch 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull more btrfs updates from Chris Mason: "This is part two of my btrfs pull, which is some cleanups and a batch of fixes. Most of the code here is from Jeff Mahoney, making the pointers we pass around internally more consistent and less confusing overall. I noticed a small problem right before I sent this out yesterday, so I fixed it up and re-tested overnight" * 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (40 commits) Btrfs: fix __MAX_CSUM_ITEMS btrfs: btrfs_abort_transaction, drop root parameter btrfs: add btrfs_trans_handle->fs_info pointer btrfs: btrfs_relocate_chunk pass extent_root to btrfs_end_transaction btrfs: convert nodesize macros to static inlines btrfs: introduce BTRFS_MAX_ITEM_SIZE btrfs: cleanup, remove prototype for btrfs_find_root_ref btrfs: copy_to_sk drop unused root parameter btrfs: simpilify btrfs_subvol_inherit_props btrfs: tests, use BTRFS_FS_STATE_DUMMY_FS_INFO instead of dummy root btrfs: tests, require fs_info for root btrfs: tests, move initialization into tests/ btrfs: btrfs_test_opt and friends should take a btrfs_fs_info btrfs: prefix fsid to all trace events btrfs: plumb fs_info into btrfs_work btrfs: remove obsolete part of comment in statfs btrfs: hide test-only member under ifdef btrfs: Ratelimit "no csum found" info message btrfs: Add ratelimit to btrfs printing Btrfs: fix unexpected balance crash due to BUG_ON ... 04 August 2016, 23:56:16 UTC
3a30325 Linus Torvalds 04 August 2016, 23:51:49 UTC Merge tag 'upstream-4.8-rc1' of git://git.infradead.org/linux-ubifs Pull UBI/UBIFS updates from Richard Weinberger: "This contains mostly cleanups and minor improvements of UBI and UBIFS" * tag 'upstream-4.8-rc1' of git://git.infradead.org/linux-ubifs: ubi: Use bitmaps in Fastmap self-check code ubi: Be more paranoid while seaching for the most recent Fastmap ubi: Check whether the Fastmap anchor matches the super block ubi: Rework Fastmap attach base code ubi: Fix whitespace issue in count_fastmap_pebs() ubi: Introduce vol_ignored() ubi: Fix scan_fast() comment ubifs: switch_gc_head: Remove redondant sync of wbuf ubi: Make volume resize power cut aware ubi: Fix early logging ubi: gluebi: Fix double refcounting ubifs: Silence early error messages if MS_SILENT is set ubi: Fix race condition between ubi device creation and udev ubifs: Update comment for ubifs_errc ubi: Only read necessary size when reading the VID header ubifs: Make xattr structures static ubifs: Silence error output if MS_SILENT is set 04 August 2016, 23:51:49 UTC
9e0243d Linus Torvalds 04 August 2016, 23:37:59 UTC Merge branch 'for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML updates from Richard Weinberger: "Beside of various fixes this also contains patches to enable features such was Kcov, kmemleak and TRACE_IRQFLAGS_SUPPORT on UML" * 'for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common() um: Support kcov um: Enable TRACE_IRQFLAGS_SUPPORT um: Use asm-generic/irqflags.h um: Fix possible deadlock in sig_handler_common() um: Select HAVE_DEBUG_KMEMLEAK um: Setup physical memory in setup_arch() um: Eliminate null test after alloc_bootmem 04 August 2016, 23:37:59 UTC
b067c90 Linus Torvalds 04 August 2016, 22:31:14 UTC Merge branch 'parisc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc updates from Helge Deller: - added an optimized hash implementation for parisc (George Spelvin) - C99 style cleanups in iomap.c (Amitoj Kaur Chawla) - added breaks to switch statement in PDC function (noticed by Dan Carpenter) * 'parisc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Change structure intialisation to C99 style in iomap.c parisc: Add break statements to pdc_pat_io_pci_cfg_read() parisc: Add <asm/hash.h> 04 August 2016, 22:31:14 UTC
8e7106a Linus Torvalds 04 August 2016, 22:04:44 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull m68knommu updates from Greg Ungerer: "This series is all about Nicolas flat format support for MMU systems. Traditional m68k no-MMU flat format binaries can now be run on m68k MMU enabled systems too. The series includes some nice cleanups of the binfmt_flat code and converts it to using proper user space accessor functions. With all this in place you can boot and run a complete no-MMU flat format based user space on an MMU enabled system" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: enable binfmt_flat on systems with an MMU binfmt_flat: allow compressed flat binary format to work on MMU systems binfmt_flat: add MMU-specific support binfmt_flat: update libraries' data segment pointer with userspace accessors binfmt_flat: use clear_user() rather than memset() to clear .bss binfmt_flat: use proper user space accessors with old relocs code binfmt_flat: use proper user space accessors with relocs processing code binfmt_flat: clean up create_flat_tables() and stack accesses binfmt_flat: use generic transfer_args_to_stack() elf_fdpic_transfer_args_to_stack(): make it generic binfmt_flat: prevent kernel dammage from corrupted executable headers binfmt_flat: convert printk invocations to their modern form binfmt_flat: assorted cleanups m68k: use same start_thread() on MMU and no-MMU m68k: fix file path comment m68k: fix bFLT executable running on MMU enabled systems 04 August 2016, 22:04:44 UTC
2b11885 Dan Carpenter 03 August 2016, 19:05:00 UTC nfsd: remove some dead code in nfsd_create_locked() We changed this around in f135af1041f ('nfsd: reorganize nfsd_create') so "dchild" can't be an error pointer any more. Also, dchild can't be NULL here (and dput would already handle this even if it was). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> 04 August 2016, 21:11:53 UTC
fa08139 J. Bruce Fields 21 July 2016, 20:00:12 UTC nfsd: drop unnecessary MAY_EXEC check from create We need an fh_verify to make sure we at least have a dentry, but actual permission checks happen later. Signed-off-by: J. Bruce Fields <bfields@redhat.com> 04 August 2016, 21:11:52 UTC
7142327 J. Bruce Fields 22 July 2016, 16:03:46 UTC nfsd: clean up bad-type check in nfsd_create_locked Minor cleanup, no change in behavior. Signed-off-by: J. Bruce Fields <bfields@redhat.com> 04 August 2016, 21:11:51 UTC
d03d9fe J. Bruce Fields 22 July 2016, 01:55:42 UTC nfsd: remove unnecessary positive-dentry check vfs_{create,mkdir,mknod} each begin with a call to may_create(), which returns EEXIST if the object already exists. This check is therefore unnecessary. (In the NFSv2 case, nfsd_proc_create also has such a check. Contrary to RFC 1094, our code seems to believe that a CREATE of an existing file should succeed. I'm leaving that behavior alone.) Signed-off-by: J. Bruce Fields <bfields@redhat.com> 04 August 2016, 21:11:50 UTC
b44061d J. Bruce Fields 20 July 2016, 20:16:06 UTC nfsd: reorganize nfsd_create There's some odd logic in nfsd_create() that allows it to be called with the parent directory either locked or unlocked. The only already-locked caller is NFSv2's nfsd_proc_create(). It's less confusing to split out the unlocked case into a separate function which the NFSv2 code can call directly. Also fix some comments while we're here. Signed-off-by: J. Bruce Fields <bfields@redhat.com> 04 August 2016, 21:11:49 UTC
e75b23f J. Bruce Fields 19 July 2016, 21:33:04 UTC nfsd: check d_can_lookup in fh_verify of directories Create and other nfsd ops generally assume we can call lookup_one_len on inodes with S_IFDIR set. Al says that this assumption isn't true in general, though it should be for the filesystem objects nfsd sees. Add a check just to make sure our assumption isn't violated. Remove a couple checks for i_op->lookup in create code. Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: J. Bruce Fields <bfields@redhat.com> 04 August 2016, 21:11:48 UTC
12391d0 J. Bruce Fields 19 July 2016, 21:25:42 UTC nfsd: remove redundant zero-length check from create lookup_one_len already has this check. The only effect of this patch is to return access instead of perm in the 0-length-filename case. I actually prefer nfserr_perm (or _inval?), but I doubt anyone cares. The isdotent check seems redundant too, but I worry that some client might actually care about that strange nfserr_exist error. Signed-off-by: J. Bruce Fields <bfields@redhat.com> 04 August 2016, 21:11:47 UTC
7eed34f Oleg Drokin 15 July 2016, 03:20:22 UTC nfsd: Make creates return EEXIST instead of EACCES When doing a create (mkdir/mknod) on a name, it's worth checking the name exists first before returning EACCES in case the directory is not writeable by the user. This makes return values on the client more consistent regardless of whenever the entry there is cached in the local cache or not. Another positive side effect is certain programs only expect EEXIST in that case even despite POSIX allowing any valid error to be returned. Signed-off-by: Oleg Drokin <green@linuxhacker.ru> Signed-off-by: J. Bruce Fields <bfields@redhat.com> 04 August 2016, 21:11:46 UTC
7f1d25b Doug Ledford 04 August 2016, 15:13:47 UTC Merge branches 'misc' and 'rxe' into k.o/for-4.8-1 04 August 2016, 15:13:47 UTC
8700e3e Moni Shoua 16 June 2016, 13:45:23 UTC Soft RoCE driver Soft RoCE (RXE) - The software RoCE driver ib_rxe implements the RDMA transport and registers to the RDMA core device as a kernel verbs provider. It also implements the packet IO layer. On the other hand ib_rxe registers to the Linux netdev stack as a udp encapsulating protocol, in that case RDMA, for sending and receiving packets over any Ethernet device. This yields a RDMA transport over the UDP/Ethernet network layer forming a RoCEv2 compatible device. The configuration procedure of the Soft RoCE drivers requires binding to any existing Ethernet network device. This is done with /sys interface. A userspace Soft RoCE library (librxe) provides user applications the ability to run with Soft RoCE devices. The use of rxe verbs ins user space requires the inclusion of librxe as a device specifics plug-in to libibverbs. librxe is packaged separately. Architecture: +-----------------------------------------------------------+ | Application | +-----------------------------------------------------------+ +-----------------------------------+ | libibverbs | User +-----------------------------------+ +----------------+ +----------------+ | librxe | | HW RoCE lib | +----------------+ +----------------+ +---------------------------------------------------------------+ +--------------+ +------------+ | Sockets | | RDMA ULP | +--------------+ +------------+ +--------------+ +---------------------+ | TCP/IP | | ib_core | +--------------+ +---------------------+ +------------+ +----------------+ Kernel | ib_rxe | | HW RoCE driver | +------------+ +----------------+ +------------------------------------+ | NIC driver | +------------------------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +-----------------------------------------------------------+ | Application | +-----------------------------------------------------------+ +-----------------------------------+ | libibverbs | User +-----------------------------------+ +----------------+ +----------------+ | librxe | | HW RoCE lib | +----------------+ +----------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +--------------+ +------------+ | Sockets | | RDMA ULP | +--------------+ +------------+ +--------------+ +---------------------+ | TCP/IP | | ib_core | +--------------+ +---------------------+ +------------+ +----------------+ Kernel | ib_rxe | | HW RoCE driver | +------------+ +----------------+ +------------------------------------+ | NIC driver | +------------------------------------+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Soft RoCE resources: [1[ https://github.com/SoftRoCE/librxe-dev librxe - source code in Github [2] https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home - Soft RoCE Wiki page [3] https://github.com/SoftRoCE/librxe-dev - Soft RoCE userspace library Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 15:13:12 UTC
c1ece76 Linus Torvalds 04 August 2016, 13:59:37 UTC Merge tag 'media/v4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media DocBook removal and some fixups from Mauro Carvalho Chehab: - removal of the media DocBook (since it's all in Sphinx now) - videobuf2: Fix an allocation regression - a few fixes related to the CEC drivers * tag 'media/v4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] cec: fix off-by-one memset [media] staging: add MEDIA_SUPPORT dependency [media] vivid: don't handle CEC_MSG_SET_STREAM_PATH [media] media: adv7180: Fix broken interrupt register access [media] vb2: Fix allocation size of dma_parms [media] vim2m: copy the other colorspace-related fields as well [media] adv7511: fix VIC autodetect doc-rst: Remove the media docbook 04 August 2016, 13:59:37 UTC
fb1b83d Linus Torvalds 04 August 2016, 13:14:38 UTC Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module updates from Rusty Russell: "The only interesting thing here is Jessica's patch to add ro_after_init support to modules. The rest are all trivia" * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: extable.h: add stddef.h so "NULL" definition is not implicit modules: add ro_after_init support jump_label: disable preemption around __module_text_address(). exceptions: fork exception table content from module.h into extable.h modules: Add kernel parameter to blacklist modules module: Do a WARN_ON_ONCE() for assert module mutex not held Documentation/module-signing.txt: Note need for version info if reusing a key module: Invalidate signatures on force-loaded modules module: Issue warnings when tainting kernel module: fix redundant test. module: fix noreturn attribute for __module_put_and_exit() 04 August 2016, 13:14:38 UTC
d597690 Linus Torvalds 04 August 2016, 12:51:12 UTC Merge branch 'akpm' (patches from Andrew) Merge even more updates from Andrew Morton: - dma-mapping API cleanup - a few cleanups and misc things - use jump labels in dynamic-debug * emailed patches from Andrew Morton <akpm@linux-foundation.org>: dynamic_debug: add jump label support jump_label: remove bug.h, atomic.h dependencies for HAVE_JUMP_LABEL arm: jump label may reference text in __exit tile: support static_key usage in non-module __exit sections sparc: support static_key usage in non-module __exit sections powerpc: add explicit #include <asm/asm-compat.h> for jump label drivers/media/dvb-frontends/cxd2841er.c: avoid misleading gcc warning MAINTAINERS: update email and list of Samsung HW driver maintainers block: remove BLK_DEV_DAX config option samples/kretprobe: fix the wrong type samples/kretprobe: convert the printk to pr_info/pr_err samples/jprobe: convert the printk to pr_info/pr_err samples/kprobe: convert the printk to pr_info/pr_err dma-mapping: use unsigned long for dma_attrs media: mtk-vcodec: remove unused dma_attrs include/linux/bitmap.h: cleanup tree-wide: replace config_enabled() with IS_ENABLED() drivers/fpga/Kconfig: fix build failure 04 August 2016, 12:51:12 UTC
9049fc7 Jason Baron 03 August 2016, 20:46:39 UTC dynamic_debug: add jump label support Although dynamic debug is often only used for debug builds, sometimes its enabled for production builds as well. Minimize its impact by using jump labels. This reduces the text section by 7000+ bytes in the kernel image below. It does increase data, but this should only be referenced when changing the direction of the branches, and hence usually not in cache. text data bss dec hex filename 8194852 4879776 925696 14000324 d5a0c4 vmlinux.pre 8187337 4960224 925696 14073257 d6bda9 vmlinux.post Link: http://lkml.kernel.org/r/d165b465e8c89bc582d973758d40be44c33f018b.1467837322.git.jbaron@akamai.com Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Joe Perches <joe@perches.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
1f69bf9 Jason Baron 03 August 2016, 20:46:36 UTC jump_label: remove bug.h, atomic.h dependencies for HAVE_JUMP_LABEL The current jump_label.h includes bug.h for things such as WARN_ON(). This makes the header problematic for inclusion by kernel.h or any headers that kernel.h includes, since bug.h includes kernel.h (circular dependency). The inclusion of atomic.h is similarly problematic. Thus, this should make jump_label.h 'includable' from most places. Link: http://lkml.kernel.org/r/7060ce35ddd0d20b33bf170685e6b0fab816bdf2.1467837322.git.jbaron@akamai.com Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Joe Perches <joe@perches.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
ddb4530 Jason Baron 03 August 2016, 20:46:33 UTC arm: jump label may reference text in __exit The jump table can reference text found in an __exit section. Thus, instead of discarding it at build time, include EXIT_TEXT as part of __init and it will be released when the system boots. Link: http://lkml.kernel.org/r/60284113bb759121e8ae3e99af1535647e52123f.1467837322.git.jbaron@akamai.com Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Joe Perches <joe@perches.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
c14b4bc Chris Metcalf 03 August 2016, 20:46:30 UTC tile: support static_key usage in non-module __exit sections Previously, all the __exit sections were just dropped by the link phase. However, if there are static_key (jump label) constructs in __exit sections that are not modules, the link fails with the message: `.exit.text' referenced in section `__jump_table' of xxx.o: defined in discarded section `.exit.text' of xxx.o Support this usage by keeping the .exit.text sections in the final image if JUMP_LABEL is defined, then discarding them once initialization is complete. Link: http://lkml.kernel.org/r/bfd7c107c610c30e992868ebfe2a5d796a097464.1467837322.git.jbaron@akamai.com Signed-off-by: Jason Baron <jbaron@akamai.com> Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Joe Perches <joe@perches.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
10d7227 Jason Baron 03 August 2016, 20:46:27 UTC sparc: support static_key usage in non-module __exit sections The jump table can reference text found in an __exit section. Thus, instead of discarding it at build/link time, include EXIT_TEXT as part of __init and release it at system boot time. Without this patch the link fails with: `.exit.text' referenced in section `__jump_table' of xxx.o: defined in discarded section `.exit.text' of xxx.o Link: http://lkml.kernel.org/r/d822da427ab07a02a394602eca687104ff682f83.1467837322.git.jbaron@akamai.com Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Joe Perches <joe@perches.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
5411fd7 Jason Baron 03 August 2016, 20:46:24 UTC powerpc: add explicit #include <asm/asm-compat.h> for jump label The stringify_in_c() macro may not be included. Make the dependency explicit. Link: http://lkml.kernel.org/r/564720c5328edd53c9d56db325be7215440eec3e.1467837322.git.jbaron@akamai.com Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Joe Perches <joe@perches.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Joe Perches <joe@perches.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
bb9bd87 Arnd Bergmann 03 August 2016, 20:46:21 UTC drivers/media/dvb-frontends/cxd2841er.c: avoid misleading gcc warning The addition of jump label support in dynamic_debug caused an unexpected warning in exactly one file in the kernel: drivers/media/dvb-frontends/cxd2841er.c: In function 'cxd2841er_tune_tc': include/linux/dynamic_debug.h:134:3: error: 'carrier_offset' may be used uninitialized in this function [-Werror=maybe-uninitialized] __dynamic_dev_dbg(&descriptor, dev, fmt, \ ^~~~~~~~~~~~~~~~~ drivers/media/dvb-frontends/cxd2841er.c:3177:11: note: 'carrier_offset' was declared here int ret, carrier_offset; ^~~~~~~~~~~~~~ The problem seems to be that the compiler gets confused by the extra conditionals in static_branch_unlikely, to the point where it can no longer keep track of which branches have already been taken, and it doesn't realize that this variable is now always initialized when it gets used. I have done lots of randconfig kernel builds and could not find any other file with this behavior, so I assume it's a rare enough glitch that we don't need to change the jump label support but instead just work around the warning in the driver. To achieve that, I'm moving the check for the return value into the switch() statement, which is an obvious transformation, but is enough to un-confuse the compiler here. The resulting code is not as nice to read, but at least we retain the behavior of warning if it gets changed to actually access an uninitialized carrier offset value in the future. Link: http://lkml.kernel.org/r/20160713204342.1221511-1-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Abylay Ospan <aospan@netup.ru> Cc: Sergey Kozlov <serjk@netup.ru> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Jason Baron <jbaron@akamai.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
774e036 Kamil Debski 03 August 2016, 20:46:18 UTC MAINTAINERS: update email and list of Samsung HW driver maintainers Change my email address in the MAINTAINERS file. Add new maintainers of selected Samsung HW drivers. Link: http://lkml.kernel.org/r/1470060703-20423-1-git-send-email-k.debski@samsung.com Signed-off-by: Kamil Debski <k.debski@samsung.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Kamil Debski <kamil@wypas.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
99a01cd Ross Zwisler 03 August 2016, 20:46:15 UTC block: remove BLK_DEV_DAX config option The functionality for block device DAX was already removed with commit acc93d30d7d4 ("Revert "block: enable dax for raw block devices"") However, we still had a config option hanging around that was always disabled because it depended on CONFIG_BROKEN. This config option was introduced in commit 03cdadb04077 ("block: disable block device DAX by default") This change reverts that commit, removing the dead config option. Link: http://lkml.kernel.org/r/20160729182314.6368-1-ross.zwisler@linux.intel.com Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
57c24b2 Huang Shijie 03 August 2016, 20:46:12 UTC samples/kretprobe: fix the wrong type The regs_return_value() returns "unsigned long" or "long" value. But the retval is int type now, it may cause overflow, the log may becomes: [ 2911.078869] do_brk returned -2003877888 and took 4620 ns to execute This patch converts the retval to "unsigned long" type, and fixes the overflow issue. Link: http://lkml.kernel.org/r/1464143083-3877-4-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
6134131 Huang Shijie 03 August 2016, 20:46:09 UTC samples/kretprobe: convert the printk to pr_info/pr_err We prefer to use the pr_* to print out the log now, this patch converts the printk to pr_info. In the error path, use the pr_err to replace the printk. Link: http://lkml.kernel.org/r/1464143083-3877-3-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
468b889 Huang Shijie 03 August 2016, 20:46:06 UTC samples/jprobe: convert the printk to pr_info/pr_err We prefer to use the pr_* to print out the log now, this patch converts the printk to pr_info. In the error path, use the pr_err to replace the printk. Link: http://lkml.kernel.org/r/1464143083-3877-2-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
e708c14 Huang Shijie 03 August 2016, 20:46:03 UTC samples/kprobe: convert the printk to pr_info/pr_err We prefer to use the pr_* to print out the log now, this patch converts the printk to pr_info. In the error path, use the pr_err to replace the printk. Link: http://lkml.kernel.org/r/1464143083-3877-1-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
00085f1 Krzysztof Kozlowski 03 August 2016, 20:46:00 UTC dma-mapping: use unsigned long for dma_attrs The dma-mapping core and the implementations do not change the DMA attributes passed by pointer. Thus the pointer can point to const data. However the attributes do not have to be a bitfield. Instead unsigned long will do fine: 1. This is just simpler. Both in terms of reading the code and setting attributes. Instead of initializing local attributes on the stack and passing pointer to it to dma_set_attr(), just set the bits. 2. It brings safeness and checking for const correctness because the attributes are passed by value. Semantic patches for this change (at least most of them): virtual patch virtual context @r@ identifier f, attrs; @@ f(..., - struct dma_attrs *attrs + unsigned long attrs , ...) { ... } @@ identifier r.f; @@ f(..., - NULL + 0 ) and // Options: --all-includes virtual patch virtual context @r@ identifier f, attrs; type t; @@ t f(..., struct dma_attrs *attrs); @@ identifier r.f; @@ f(..., - NULL + 0 ) Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> Acked-by: Mark Salter <msalter@redhat.com> [c6x] Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris] Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm] Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Joerg Roedel <jroedel@suse.de> [iommu] Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp] Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core] Acked-by: David Vrabel <david.vrabel@citrix.com> [xen] Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb] Acked-by: Joerg Roedel <jroedel@suse.de> [iommu] Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon] Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390] Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32] Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc] Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
1605d27 Krzysztof Kozlowski 03 August 2016, 20:45:57 UTC media: mtk-vcodec: remove unused dma_attrs The local variable dma_attrs is set but never read. Link: http://lkml.kernel.org/r/1468399300-5399-1-git-send-email-k.kozlowski@samsung.com Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
4b9d314 Andrew Morton 03 August 2016, 20:45:54 UTC include/linux/bitmap.h: cleanup Remove two unneeded `else's. Cc: David Hildenbrand <dahi@linux.vnet.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
97f2645 Masahiro Yamada 03 August 2016, 20:45:50 UTC tree-wide: replace config_enabled() with IS_ENABLED() The use of config_enabled() against config options is ambiguous. In practical terms, config_enabled() is equivalent to IS_BUILTIN(), but the author might have used it for the meaning of IS_ENABLED(). Using IS_ENABLED(), IS_BUILTIN(), IS_MODULE() etc. makes the intention clearer. This commit replaces config_enabled() with IS_ENABLED() where possible. This commit is only touching bool config options. I noticed two cases where config_enabled() is used against a tristate option: - config_enabled(CONFIG_HWMON) [ drivers/net/wireless/ath/ath10k/thermal.c ] - config_enabled(CONFIG_BACKLIGHT_CLASS_DEVICE) [ drivers/gpu/drm/gma500/opregion.c ] I did not touch them because they should be converted to IS_BUILTIN() in order to keep the logic, but I was not sure it was the authors' intention. Link: http://lkml.kernel.org/r/1465215656-20569-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Stas Sergeev <stsp@list.ru> Cc: Matt Redfearn <matt.redfearn@imgtec.com> Cc: Joshua Kinard <kumba@gentoo.org> Cc: Jiri Slaby <jslaby@suse.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Borislav Petkov <bp@suse.de> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: "Dmitry V. Levin" <ldv@altlinux.org> Cc: yu-cheng yu <yu-cheng.yu@intel.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Brian Gerst <brgerst@gmail.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Will Drewry <wad@chromium.org> Cc: Nikolay Martynov <mar.kolya@gmail.com> Cc: Huacai Chen <chenhc@lemote.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Cc: Rafal Milecki <zajec5@gmail.com> Cc: James Cowgill <James.Cowgill@imgtec.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Adam Buchbinder <adam.buchbinder@gmail.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Mikko Rapeli <mikko.rapeli@iki.fi> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Cc: "Luis R. Rodriguez" <mcgrof@do-not-panic.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Roland McGrath <roland@hack.frob.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Kalle Valo <kvalo@qca.qualcomm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Tony Wu <tung7970@gmail.com> Cc: Huaitong Han <huaitong.han@intel.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Juergen Gross <jgross@suse.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrea Gelmini <andrea.gelmini@gelma.net> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Rabin Vincent <rabin@rab.in> Cc: "Maciej W. Rozycki" <macro@imgtec.com> Cc: David Daney <david.daney@cavium.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
1c8cb40 Sudip Mukherjee 03 August 2016, 20:45:46 UTC drivers/fpga/Kconfig: fix build failure While building m32r allmodconfig the build is failing with the error: ERROR: "bad_dma_ops" [drivers/fpga/zynq-fpga.ko] undefined! Xilinx Zynq FPGA is using DMA but there was no dependency while building. Link: http://lkml.kernel.org/r/1464346526-13913-1-git-send-email-sudipm.mukherjee@gmail.com Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Cc: Alan Tull <atull@opensource.altera.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 12:50:07 UTC
96b5852 Linus Torvalds 04 August 2016, 02:20:22 UTC Revert "ACPI / hotplug / PCI: Runtime resume bridge before rescan" This reverts commit 16468c783cb4cf72475dcda23fabecb4a4bb0e17. Bisection showed that it was the root cause for a resume hang on a bog-standard all-Intel laptop (Sony Vaio Pro 11), and reverting fixes the hang. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 04 August 2016, 02:20:22 UTC
7c41765 Doug Ledford 04 August 2016, 01:51:20 UTC Merge branches 'hfi1' and 'sge-limit' into k.o/for-4.8-2 04 August 2016, 01:51:20 UTC
ab15c95 Alex Vesker 06 July 2016, 13:36:35 UTC IB/core: Support for CMA multicast join flags Added UCMA and CMA support for multicast join flags. Flags are passed using UCMA CM join command previously reserved fields. Currently supporting two join flags indicating two different multicast JoinStates: 1. Full Member: The initiator creates the Multicast group(MCG) if it wasn't previously created, can send Multicast messages to the group and receive messages from the MCG. 2. Send Only Full Member: The initiator creates the Multicast group(MCG) if it wasn't previously created, can send Multicast messages to the group but doesn't receive any messages from the MCG. IB: Send Only Full Member requires a query of ClassPortInfo to determine if SM/SA supports this option. If SM/SA doesn't support Send-Only there will be no join request sent and an error will be returned. ETH: When Send Only Full Member is requested no IGMP join will be sent. Signed-off-by: Alex Vesker <valex@mellanox.com> Reviewed by: Hal Rosenstock <hal@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:06:46 UTC
3d3fd74 Alex Vesker 06 July 2016, 13:36:34 UTC IB/sa: Add cached attribute containing SM information to SA port Added a new SA port attribute containing SM ClassPortInfo fields, (ClassPortInfo fields: Table 126 IB Spec 1.3.). This is useful for checking SM support for specific features. The attribute is cached to avoid resending queries, caching is done when a successful ClassPortInfo reply is received on the port. Invalidation of the attribute is done on SM change events, SM re-registration events, and SM LID change events. The fields in ClassPortInfo should not change during SM runtime without an event. Signed-off-by: Alex Vesker <valex@mellanox.com> Reviewed by: Hal Rosenstock <hal@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:36 UTC
d1e09f3 Jason Gunthorpe 03 July 2016, 12:28:18 UTC IB/uverbs: Fix race between uverbs_close and remove_one Fixes an oops that might happen if uverbs_close races with remove_one. Both contexts may run ib_uverbs_cleanup_ucontext, it depends on the flow. Currently, there is no protection for a case that remove_one didn't make the cleanup it runs to its end, the underlying ib_device was freed then uverbs_close will call ib_uverbs_cleanup_ucontext and OOPs. Above might happen if uverbs_close deleted the file from the list then remove_one didn't find it and runs to its end. Fixes to protect against that case by a new cleanup lock so that ib_uverbs_cleanup_ucontext will be called always before that remove_one is ended. Fixes: 35d4a0b63dc0 ("IB/uverbs: Fix race between ib_uverbs_open and remove_one") Reported-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:36 UTC
380bae5 Markus Elfring 23 July 2016, 09:28:30 UTC IB/mthca: Clean up error unwind flow in mthca_reset() The kfree() function was called in a few cases by the mthca_reset() function during error handling even if the passed variables "bridge_header" and "hca_header" contained a null pointer. Adjust jump targets according to the Linux coding style convention. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:35 UTC
3491ab6 Markus Elfring 23 July 2016, 08:05:12 UTC IB/mthca: NULL arg to pci_dev_put is OK The pci_dev_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:35 UTC
f7ca535 Markus Elfring 23 July 2016, 06:30:52 UTC IB/hfi1: NULL arg to sc_return_credits is OK The sc_return_credits() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:35 UTC
3f85f2a Mark Bloch 19 July 2016, 17:54:58 UTC IB/mlx4: Add diagnostic hardware counters Expose IB diagnostic hardware counters. The counters count IB events and are applicable for IB and RoCE. The counters can be divided into two groups, per device and per port. Device counters are always exposed. Port counters are exposed only if the firmware supports per port counters. rq_num_dup and sq_num_to are only exposed if we have firmware support for them, if we do, we expose them per device and per port. rq_num_udsdprd and num_cqovf are device only counters. rq - denotes responder. sq - denotes requester. |-----------------------|---------------------------------------| | Name | Description | |-----------------------|---------------------------------------| |rq_num_lle | Number of local length errors | |-----------------------|---------------------------------------| |sq_num_lle | number of local length errors | |-----------------------|---------------------------------------| |rq_num_lqpoe | Number of local QP operation errors | |-----------------------|---------------------------------------| |sq_num_lqpoe | Number of local QP operation errors | |-----------------------|---------------------------------------| |rq_num_lpe | Number of local protection errors | |-----------------------|---------------------------------------| |sq_num_lpe | Number of local protection errors | |-----------------------|---------------------------------------| |rq_num_wrfe | Number of CQEs with error | |-----------------------|---------------------------------------| |sq_num_wrfe | Number of CQEs with error | |-----------------------|---------------------------------------| |sq_num_mwbe | Number of Memory Window bind errors | |-----------------------|---------------------------------------| |sq_num_bre | Number of bad response errors | |-----------------------|---------------------------------------| |sq_num_rire | Number of Remote Invalid request | | | errors | |-----------------------|---------------------------------------| |rq_num_rire | Number of Remote Invalid request | | | errors | |-----------------------|---------------------------------------| |sq_num_rae | Number of remote access errors | |-----------------------|---------------------------------------| |rq_num_rae | Number of remote access errors | |-----------------------|---------------------------------------| |sq_num_roe | Number of remote operation errors | |-----------------------|---------------------------------------| |sq_num_tree | Number of transport retries exceeded | | | errors | |-----------------------|---------------------------------------| |sq_num_rree | Number of RNR NAK retries exceeded | | | errors | |-----------------------|---------------------------------------| |rq_num_rnr | Number of RNR NAKs sent | |-----------------------|---------------------------------------| |sq_num_rnr | Number of RNR NAKs received | |-----------------------|---------------------------------------| |rq_num_oos | Number of Out of Sequence requests | | | received | |-----------------------|---------------------------------------| |sq_num_oos | Number of Out of Sequence NAKs | | | received | |-----------------------|---------------------------------------| |rq_num_udsdprd | Number of UD packets silently | | | discarded on the Receive Queue due to | | | lack of receive descriptor | |-----------------------|---------------------------------------| |rq_num_dup | Number of duplicate requests received | |-----------------------|---------------------------------------| |sq_num_to | Number of time out received | |-----------------------|---------------------------------------| |num_cqovf | Number of CQ overflows | |-----------------------|---------------------------------------| Signed-off-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:34 UTC
bfaf316 Mark Bloch 19 July 2016, 17:54:57 UTC net/mlx4: Query performance and diagnostics counters Add a function to query diagnostics counters from the firmware. Signed-off-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:34 UTC
c7c122e Mark Bloch 19 July 2016, 17:54:56 UTC net/mlx4: Add diagnostic counters capability bit Add a bit that indicates if the firmware supports per port diagnostic counters. Signed-off-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:33 UTC
e972dab Mustafa Ismail 18 July 2016, 19:21:49 UTC Use smaller 512 byte messages for portmapper messages Portmapper messages are short and do not occupy more than 512 bytes. Lower portmapper message size to 512 bytes. This change significantly reduces the amount of memory needed when trying to establish a large number of connections simultaneously. The old value is based on page size. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:33 UTC
5faba54 Yuval Shaia 20 July 2016, 08:30:06 UTC IB/ipoib: Report SG feature regardless of HW UD CSUM capability Decouple SG support from HW ability to do UD checksum. This coupling is for historical reasons and removed with 'commit ec5f06156423 ("net: Kill link between CSUM and SG features.")' During driver load it is assumed that device does not supports SG. The final decision is taken after creating UD QP based on device capability. Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:32 UTC
0c87b67 Roland Dreier 29 July 2016, 04:58:43 UTC IB/mlx4: Don't use GFP_ATOMIC for CQ resize struct We allocate a small tracking structure as part of mlx4_ib_resize_cq(). However, we don't need to use GFP_ATOMIC -- immediately after the allocation, we call mlx4_cq_resize(), which allocates a command mailbox with GFP_KERNEL and then sleeps on a firmware command, so we better not be in an atomic context. This actually has a real impact, because when this GFP_ATOMIC allocation fails (and GFP_ATOMIC does fail in practice) then a userspace consumer resizing a CQ will get a spurious failure that we can easily avoid. Signed-off-by: Roland Dreier <roland@purestorage.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:32 UTC
a154a8c Bart Van Assche 19 July 2016, 17:03:44 UTC IB/hfi1: Disable by default There is a strict policy in the Linux kernel that new drivers must be disabled by default. Hence leave out the "default m" line from Kconfig. Fixes: f48ad614c100 ("IB/hfi1: Move driver out of staging") Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Jubin John <jubin.john@intel.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Mike Marciniszyn <mike.marciniszyn@intel.com> Cc: <stable@vger.kernel.org> # v4.7+ Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:32 UTC
378fc32 Bart Van Assche 19 July 2016, 17:03:17 UTC IB/rdmavt: Disable by default There is a strict policy in the Linux kernel that new drivers must be disabled by default. Hence leave out the "default m" line from Kconfig. Fixes: 0194621b2253 ("IB/rdmavt: Create module framework and handle driver registration") Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Jubin John <jubin.john@intel.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Mike Marciniszyn <mike.marciniszyn@intel.com> Cc: <stable@vger.kernel.org> # v4.6+ Signed-off-by: Doug Ledford <dledford@redhat.com> 04 August 2016, 01:03:31 UTC
6a89d89 Doug Ledford 04 August 2016, 01:00:16 UTC Merge branch 'i40iw' into k.o/for-4.8 04 August 2016, 01:00:16 UTC
3e5e8e8 Doug Ledford 04 August 2016, 00:58:45 UTC Merge branches 'cxgb4' and 'mlx5' into k.o/for-4.8 04 August 2016, 00:58:45 UTC
49aadcf Paul Gortmaker 28 July 2016, 03:11:47 UTC extable.h: add stddef.h so "NULL" definition is not implicit While not an issue now, eventually we will have independent users of the extable.h file and we will stop sourcing it via module.h header. In testing that pending work, with very sparse builds, characteristic of an "allnoconfig" on various architectures, we can sometimes hit an instance where the very basic standard definitions aren't present, resulting in: include/linux/extable.h:26:9: error: 'NULL' undeclared (first use in this function) To be clear, this isn't a regression, since currently extable.h is only used by module.h -- however, we will need this addition present before we start migrating exception table users off module.h and onto extable.h during the next release cycle. Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 04 August 2016, 00:46:56 UTC
444d13f Jessica Yu 27 July 2016, 02:36:21 UTC modules: add ro_after_init support Add ro_after_init support for modules by adding a new page-aligned section in the module layout (after rodata) for ro_after_init data and enabling RO protection for that section after module init runs. Signed-off-by: Jessica Yu <jeyu@redhat.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 04 August 2016, 00:46:55 UTC
bdc9f37 Rusty Russell 27 July 2016, 02:47:35 UTC jump_label: disable preemption around __module_text_address(). Steven reported a warning caused by not holding module_mutex or rcu_read_lock_sched: his backtrace was corrupted but a quick audit found this possible cause. It's wrong anyway... Reported-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 04 August 2016, 00:46:54 UTC
0ef7653 Paul Gortmaker 27 July 2016, 02:36:34 UTC exceptions: fork exception table content from module.h into extable.h For historical reasons (i.e. pre-git) the exception table stuff was buried in the middle of the module.h file. I noticed this while doing an audit for needless includes of module.h and found core kernel files (both arch specific and arch independent) were just including module.h for this. The converse is also true, in that conventional drivers, be they for filesystems or actual hardware peripherals or similar, do not normally care about the exception tables. Here we fork the exception table content out of module.h into a new file called extable.h -- and temporarily include it into the module.h itself. Then we will work our way across the arch independent and arch specific files needing just exception table content, and move them off module.h and onto extable.h Once that is done, we can remove the extable.h from module.h and in doing it like this, we avoid introducing build failures into the git history. The gain here is that module.h gets a bit smaller, across all modular drivers that we build for allmodconfig. Also the core files that only need exception table stuff don't have an include of module.h that brings in lots of extra stuff and just looks generally out of place. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 04 August 2016, 00:46:54 UTC
be7de5f Prarit Bhargava 21 July 2016, 06:07:56 UTC modules: Add kernel parameter to blacklist modules Blacklisting a module in linux has long been a problem. The current procedure is to use rd.blacklist=module_name, however, that doesn't cover the case after the initramfs and before a boot prompt (where one is supposed to use /etc/modprobe.d/blacklist.conf to blacklist runtime loading). Using rd.shell to get an early prompt is hit-or-miss, and doesn't cover all situations AFAICT. This patch adds this functionality of permanently blacklisting a module by its name via the kernel parameter module_blacklist=module_name. [v2]: Rusty, use core_param() instead of __setup() which simplifies things. [v3]: Rusty, undo wreckage from strsep() [v4]: Rusty, simpler version of blacklisted() Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-doc@vger.kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 04 August 2016, 00:46:53 UTC
9502514 Steven Rostedt 18 July 2016, 20:29:24 UTC module: Do a WARN_ON_ONCE() for assert module mutex not held When running with lockdep enabled, I triggered the WARN_ON() in the module code that asserts when module_mutex or rcu_read_lock_sched are not held. The issue I have is that this can also be called from the dump_stack() code, causing us to enter an infinite loop... ------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at kernel/module.c:268 module_assert_mutex_or_preempt+0x3c/0x3e Modules linked in: ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.7.0-rc3-test-00013-g501c2375253c #14 Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 ffff880215e8fa70 ffff880215e8fa70 ffffffff812fc8e3 0000000000000000 ffffffff81d3e55b ffff880215e8fac0 ffffffff8104fc88 ffffffff8104fcab 0000000915e88300 0000000000000046 ffffffffa019b29a 0000000000000001 Call Trace: [<ffffffff812fc8e3>] dump_stack+0x67/0x90 [<ffffffff8104fc88>] __warn+0xcb/0xe9 [<ffffffff8104fcab>] ? warn_slowpath_null+0x5/0x1f ------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at kernel/module.c:268 module_assert_mutex_or_preempt+0x3c/0x3e Modules linked in: ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.7.0-rc3-test-00013-g501c2375253c #14 Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 ffff880215e8f7a0 ffff880215e8f7a0 ffffffff812fc8e3 0000000000000000 ffffffff81d3e55b ffff880215e8f7f0 ffffffff8104fc88 ffffffff8104fcab 0000000915e88300 0000000000000046 ffffffffa019b29a 0000000000000001 Call Trace: [<ffffffff812fc8e3>] dump_stack+0x67/0x90 [<ffffffff8104fc88>] __warn+0xcb/0xe9 [<ffffffff8104fcab>] ? warn_slowpath_null+0x5/0x1f ------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at kernel/module.c:268 module_assert_mutex_or_preempt+0x3c/0x3e Modules linked in: ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.7.0-rc3-test-00013-g501c2375253c #14 Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 ffff880215e8f4d0 ffff880215e8f4d0 ffffffff812fc8e3 0000000000000000 ffffffff81d3e55b ffff880215e8f520 ffffffff8104fc88 ffffffff8104fcab 0000000915e88300 0000000000000046 ffffffffa019b29a 0000000000000001 Call Trace: [<ffffffff812fc8e3>] dump_stack+0x67/0x90 [<ffffffff8104fc88>] __warn+0xcb/0xe9 [<ffffffff8104fcab>] ? warn_slowpath_null+0x5/0x1f ------------[ cut here ]------------ WARNING: CPU: 1 PID: 0 at kernel/module.c:268 module_assert_mutex_or_preempt+0x3c/0x3e [...] Which gives us rather useless information. Worse yet, there's some race that causes this, and I seldom trigger it, so I have no idea what happened. This would not be an issue if that warning was a WARN_ON_ONCE(). Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 04 August 2016, 00:46:52 UTC
4620a06 Geert Uytterhoeven 03 August 2016, 17:58:19 UTC shmem: Fix link error if huge pages support is disabled If CONFIG_TRANSPARENT_HUGE_PAGECACHE=n, HPAGE_PMD_NR evaluates to BUILD_BUG_ON(), and may cause (e.g. with gcc 4.12): mm/built-in.o: In function `shmem_alloc_hugepage': shmem.c:(.text+0x17570): undefined reference to `__compiletime_assert_1365' To fix this, move the assignment to hindex after the check for huge pages support. Fixes: 800d8c63b2e9 ("shmem: add huge pages support") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 03 August 2016, 22:20:12 UTC
8a545f1 Dan Carpenter 13 July 2016, 10:12:34 UTC hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common() We can't pass error pointers to kfree() or it causes an oops. Fixes: 52b209f7b848 ('get rid of hostfs_read_inode()') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Richard Weinberger <richard@nod.at> 03 August 2016, 22:18:10 UTC
915eed2 Vegard Nossum 21 May 2016, 15:46:10 UTC um: Support kcov This adds support for kcov to UML. There is a small problem where UML will randomly segfault during boot; this is because current_thread_info() occasionally returns an invalid (non-NULL) pointer and we try to dereference it in __sanitizer_cov_trace_pc(). I consider this a bug in UML itself and this patch merely exposes it. [v2: disable instrumentation in UML-specific code] Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com> Cc: Richard Weinberger <richard@nod.at> Cc: Thomas Meyer <thomas@m3y3r.de> Cc: user-mode-linux-devel <user-mode-linux-devel@lists.sourceforge.net> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Richard Weinberger <richard@nod.at> 03 August 2016, 22:18:06 UTC
8e99bc7 Richard Weinberger 12 June 2016, 20:04:54 UTC um: Enable TRACE_IRQFLAGS_SUPPORT Now we have everything we need, so enable TRACE_IRQFLAGS_SUPPORT. Signed-off-by: Richard Weinberger <richard@nod.at> 03 August 2016, 22:18:04 UTC
3e93895 Daniel Wagner 12 June 2016, 20:04:53 UTC um: Use asm-generic/irqflags.h Instead proving its own arch_local_irq_save() and arch_irqs_disabled() version use the generic version from asm-generic/irqflags.h. A nice side effect is that um gets a few additional arch_ functions as well. Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de> [rw: Massaged commit message] Signed-off-by: Richard Weinberger <richard@nod.at> 03 August 2016, 22:18:04 UTC
57a05d8 Richard Weinberger 12 June 2016, 20:03:16 UTC um: Fix possible deadlock in sig_handler_common() We are in atomic context and must not sleep. Sleeping here is possible since malloc() maps to kmalloc() with GFP_KERNEL. Cc: stable@vger.kernel.org Fixes: b6024b21 ("um: extend fpstate to _xstate to support YMM registers") Signed-off-by: Richard Weinberger <richard@nod.at> 03 August 2016, 22:17:58 UTC
25fd91d Linus Torvalds 03 August 2016, 22:11:24 UTC drm: i915: fix build when DEBUG_FS is disabled This clearly had never gotten tested, probably because you need a fairly minimal configuration in order to disable DEBUG_FS (several other options select it). The dummy inline functions that were used for the no-DEBUG_FS case were missing the argument names in the declarations. Fixes: 1dac891c1c95 ("drm/i915: Register debugfs interface last") Reported-and-tested-by: Jörg Otte <jrg.otte@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 03 August 2016, 22:11:24 UTC
5609a3d Richard Weinberger 12 June 2016, 19:56:43 UTC um: Select HAVE_DEBUG_KMEMLEAK Now we have the infrastructure to support kmemleak. Enable the HAVE flag. Signed-off-by: Richard Weinberger <richard@nod.at> 03 August 2016, 22:01:10 UTC
b632369 Richard Weinberger 12 June 2016, 19:56:42 UTC um: Setup physical memory in setup_arch() Currently UML sets up physical memory very early, long before setup_arch() was called by the kernel main function. This can cause problems when code paths in UML's memory setup code assume that the kernel is already running. i.e. when kmemleak is enabled it will evaluate current() in free_bootmem(). That early current() is undefined and UML explodes. Solve the problem by setting up physical memory in setup_arch(), at this stage the kernel has materialized and basic infrastructure such as current() works. Signed-off-by: Richard Weinberger <richard@nod.at> 03 August 2016, 22:00:46 UTC
fed4c72 Amitoj Kaur Chawla 28 May 2016, 13:09:03 UTC um: Eliminate null test after alloc_bootmem alloc_bootmem function never returns NULL. Thus a NULL test after a call to this function is unnecessary. The Coccinelle semantic patch used to make this change is follows: @@ expression E; statement S; @@ E = alloc_bootmem(...) ... when != E - if (E == NULL) S Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at> 03 August 2016, 22:00:06 UTC
42049bf Chris Mason 03 August 2016, 21:05:46 UTC Btrfs: fix __MAX_CSUM_ITEMS Jeff Mahoney's cleanup commit (14a1e067b4) wasn't correct for csums on machines where the pagesize >= metadata blocksize. This just reverts the relevant hunks to bring the old math back. Signed-off-by: Chris Mason <clm@fb.com> 03 August 2016, 21:08:37 UTC
bf0f500 Linus Torvalds 03 August 2016, 16:50:06 UTC Merge tag 'trace-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "A few updates and fixes: - move the suppressing of the __builtin_return_address >0 warning to the tracing directory only. - metag recordmcount fix for newer glibc's - two tracing histogram fixes that were reported by KASAN" * tag 'trace-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Fix use-after-free in hist_register_trigger() tracing: Fix use-after-free in hist_unreg_all/hist_enable_unreg_all Makefile: Mute warning for __builtin_return_address(>0) for tracing only ftrace/recordmcount: Work around for addition of metag magic but not relocations 03 August 2016, 16:50:06 UTC
4b2e016 Geert Uytterhoeven 03 August 2016, 15:33:32 UTC fs/proc: Add compiler check for -Wno-override-init to support gcc < 4.2 With gcc < 4.2 (e.g. 4.1.2): CC fs/proc/task_mmu.o cc1: error: unrecognized command line option "-Wno-override-init" To fix this, only enable the compiler option when it is actually supported by the compiler. Fixes: ca52953f5f24 ("fs/proc/task_mmu.c: suppress compilation warnings with W=1") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 03 August 2016, 16:45:23 UTC
f093615 Linus Torvalds 03 August 2016, 11:26:11 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net Pull networking fixes from David Miller: 1) Fix several cases of missing of_node_put() calls in various networking drivers. From Peter Chen. 2) Don't try to remove unconfigured VLANs in qed driver, from Yuval Mintz. 3) Unbalanced locking in TIPC error handling, from Wei Yongjun. 4) Fix lockups in CPDMA driver, from Grygorii Strashko. 5) More MACSEC refcount et al fixes, from Sabrina Dubroca. 6) Fix MAC address setting in r8169 during runtime suspend, from Chun-Hao Lin. 7) Various printf format specifier fixes, from Heinrich Schuchardt. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits) qed: Fail driver load in 100g MSI mode. ethernet: ti: davinci_emac: add missing of_node_put after calling of_parse_phandle ethernet: stmicro: stmmac: add missing of_node_put after calling of_parse_phandle ethernet: stmicro: stmmac: dwmac-socfpga: add missing of_node_put after calling of_parse_phandle ethernet: renesas: sh_eth: add missing of_node_put after calling of_parse_phandle ethernet: renesas: ravb_main: add missing of_node_put after calling of_parse_phandle ethernet: marvell: pxa168_eth: add missing of_node_put after calling of_parse_phandle ethernet: marvell: mvpp2: add missing of_node_put after calling of_parse_phandle ethernet: marvell: mvneta: add missing of_node_put after calling of_parse_phandle ethernet: hisilicon: hns: hns_dsaf_main: add missing of_node_put after calling of_parse_phandle ethernet: hisilicon: hns: hns_dsaf_mac: add missing of_node_put after calling of_parse_phandle ethernet: cavium: octeon: add missing of_node_put after calling of_parse_phandle ethernet: aurora: nb8800: add missing of_node_put after calling of_parse_phandle ethernet: arc: emac_main: add missing of_node_put after calling of_parse_phandle ethernet: apm: xgene: add missing of_node_put after calling of_parse_phandle ethernet: altera: add missing of_node_put 8139too: fix system hang when there is a tx timeout event. qed: Fix error return code in qed_resc_alloc() net: qlcnic: avoid superfluous assignement dsa: b53: remove redundant if ... 03 August 2016, 11:26:11 UTC
0636e9a Dean Luick 28 July 2016, 19:21:27 UTC IB/hfi1: Add cache evict LRU list The original code used a LRU list to evict nodes which were least recently used. For correctness the evict code was moved under the handler->lock, now add back the LRU list. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
2677a76 Ira Weiny 28 July 2016, 19:21:26 UTC IB/hfi1: Fix memory leak during unexpected shutdown During an unexpected shutdown, references to tid_rb_node were NULL'ed out without properly being released. Fix this by calling clear_tid_node in the mmu notifier remove callback rather than after these callbacks are called. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
082b353 Dean Luick 28 July 2016, 19:21:25 UTC IB/hfi1: Remove unneeded mm argument in remove function The reworked mmu_rb interface allows the unused mm argument to be removed. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
b85ced9 Dean Luick 28 July 2016, 19:21:24 UTC IB/hfi1: Consistently call ops->remove outside spinlock The ops->remove() callback was called by hfi1_mmu_unregister() with a NULL mm argument while holding a spinlock. In the case of sdma_rb_remove() this caused it to pass current->mm to hfi1_release_user_pages() This had 2 problems. First this would attempt to acquire the mmap_sem under a spin lock. Second the use of current->mm is not always guaranteed to be the proper mm when the fd is being closed. Rather than depend on this implicit behavior we move all calls to ops->remove outside of the spinlock. This also allows the correct mm to be used in the remove callback without fear of deadlock. Because the MMU notifier is not guaranteed to hold mm->mmap_sem, but usually does, we must delay all remove callbacks until out of the notifier, when the callbacks can take the mmap_sem if they need to. Code comments were added to clarify what the expectations are for the users of the mmu rb tree. Suggested-by: Jim Foraker <foraker1@llnl.gov> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
b7df192 Dean Luick 28 July 2016, 19:21:23 UTC IB/hfi1: Use evict mmu rb operation Use the new cache evict operation in the SDMA code. This allows the cache to properly coordinate evicts and removes, preventing any race. With this change, the separate list, lock, and race flag are not needed. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
1034599 Dean Luick 28 July 2016, 19:21:22 UTC IB/hfi1: Add evict operation to the mmu rb handler Allow users to clear nodes from the rb tree based on their evict callback. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
622c202 Dean Luick 28 July 2016, 19:21:21 UTC IB/hfi1: Fix TID caching actions Per file descriptor TID caching actions depend on a global that can change midway through the lifetime of that file descriptor. Make the use of caching consistent for the life of the file descriptor by using the presence of the cache handler to decide when to use the cache functions. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
e0b09ac Dean Luick 28 July 2016, 19:21:20 UTC IB/hfi1: Make the cache handler own its rb tree root The objects which use cache handling should reference their own handler object not the internal data structure it uses to track the nodes. Have the "users" of the mmu notifier code pass opaque objects which can then be properly used in the mmu callbacks depending on the owners needs. This patch has the additional benefit that operations no longer require a look up in a list to find the handlers. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
3faa3d9 Ira Weiny 28 July 2016, 19:21:19 UTC IB/hfi1: Make use of mm consistent The hfi1 driver registers a mmu_notifier callback when /dev/hfi1_* is opened, and unregisters it when the device is closed. The driver incorrectly assumes that the close will always happen from the same context as the open. In particular, closes due to SIGKILL or OOM killer activity may happen from a different context. In these cases, the wrong mm is passed to mmu_notifier_unregister(), which causes improper reference counting for the victim mm, and eventual memory corruption. Preserve the mm for all open file descriptors and use this mm rather than current->mm for memory operations for the lifetime of that fd. Note: this patch leaves 1 use of current->mm in place. This use is removed in a follow on patch because other functional changes were required prior to that use being removed. If registration fails, there is no reason to keep the handler object around. Free the handler object rather than add it to the list to prevent any mmu_notifier operations, including unregister, when registration fails. Suggested-by: Jim Foraker <foraker1@llnl.gov> Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
7b3256e Dean Luick 28 July 2016, 19:21:18 UTC IB/hfi1: Fix user SDMA racy user request claim The user SDMA in-use claim bit is in the structure that gets zeroed out once the claim is made. Move the request in-use flag into its own bit array and use that for atomic claims. This cleans up the claim code and removes any race possibility. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
9da7e9a Dean Luick 28 July 2016, 19:21:17 UTC IB/hfi1: Fix error condition that needs to clean up If input validation fails, properly free the request before returning. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
a383f8e Dean Luick 28 July 2016, 19:21:16 UTC IB/hfi1: Release node on insert failure If unable to insert node into the RB tree cache, node will be freed before returning from the function. Null out iovec's pointer to node so iovec does not try to free it later. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com> 03 August 2016, 02:46:21 UTC
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