1. 25 May, 2014 4 commits
  2. 22 May, 2014 3 commits
    • Russell King's avatar
      ARM: stacktrace: include exception PC value in stacktrace output · 07b40341
      Russell King authored
      
      
      When we unwind through an exception stack, include the saved PC value
      into the stack trace: this fills in an otherwise missed functions from
      the trace (as indicated below):
      
       [<c03f4424>] fec_enet_interrupt+0xa0/0xe8
       [<c0066c0c>] handle_irq_event_percpu+0x68/0x228
       [<c0066e18>] handle_irq_event+0x4c/0x6c
       [<c006a024>] handle_fasteoi_irq+0xac/0x198
       [<c00664b0>] generic_handle_irq+0x4c/0x60
       [<c000f014>] handle_IRQ+0x40/0x98
       [<c0008554>] gic_handle_irq+0x30/0x64
       [<c0012900>] __irq_svc+0x40/0x50
       [<c0029030>] __do_softirq+0xe0/0x2fc		<====
       [<c0029500>] irq_exit+0xb0/0x100
       [<c000f018>] handle_IRQ+0x44/0x98
       [<c0008554>] gic_handle_irq+0x30/0x64
       [<c0012900>] __irq_svc+0x40/0x50
       [<c000f34c>] arch_cpu_idle+0x30/0x38		<====
       [<c005e1e4>] cpu_startup_entry+0xac/0x214
       [<c066297c>] rest_init+0x68/0x80
       [<c08ccb10>] start_kernel+0x2fc/0x358
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      07b40341
    • Russell King's avatar
      ARM: stacktrace: avoid listing stacktrace functions in stacktrace · 3683f44c
      Russell King authored
      
      
      While debugging the FEC ethernet driver using stacktrace, it was noticed
      that the stacktraces always begin as follows:
      
       [<c00117b4>] save_stack_trace_tsk+0x0/0x98
       [<c0011870>] save_stack_trace+0x24/0x28
       ...
      
      This is because the stack trace code includes the stack frames for itself.
      This is incorrect behaviour, and also leads to "skip" doing the wrong
      thing (which is the number of stack frames to avoid recording.)
      
      Perversely, it does the right thing when passed a non-current thread.  Fix
      this by ensuring that we have a known constant number of frames above the
      main stack trace function, and always skip these.
      
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      3683f44c
    • Russell King's avatar
      ARM: dma-mapping: avoid calling dma_cache_maint_page() on dev=>cpu · deace4a6
      Russell King authored
      
      
      Avoid calling dma_cache_maint_page() when unmapping a DMA_TO_DEVICE
      buffer.  The L1 cache ops never do anything in this circumstance, nor
      do they ever need to - all that matters for this case is that the data
      written is visible to the device before DMA starts.  What happens during
      the transfer (provided the buffer is not written to) is of no real
      consequence.
      
      We already do this optimisation for the L2 cache.
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      deace4a6
  3. 25 Apr, 2014 4 commits
    • Jianguo Wu's avatar
      ARM: 8037/1: mm: support big-endian page tables · 86f40622
      Jianguo Wu authored
      
      
      When enable LPAE and big-endian in a hisilicon board, while specify
      mem=384M mem=512M@7680M, will get bad page state:
      
      Freeing unused kernel memory: 180K (c0466000 - c0493000)
      BUG: Bad page state in process init  pfn:fa442
      page:c7749840 count:0 mapcount:-1 mapping:  (null) index:0x0
      page flags: 0x40000400(reserved)
      Modules linked in:
      CPU: 0 PID: 1 Comm: init Not tainted 3.10.27+ #66
      [<c000f5f0>] (unwind_backtrace+0x0/0x11c) from [<c000cbc4>] (show_stack+0x10/0x14)
      [<c000cbc4>] (show_stack+0x10/0x14) from [<c009e448>] (bad_page+0xd4/0x104)
      [<c009e448>] (bad_page+0xd4/0x104) from [<c009e520>] (free_pages_prepare+0xa8/0x14c)
      [<c009e520>] (free_pages_prepare+0xa8/0x14c) from [<c009f8ec>] (free_hot_cold_page+0x18/0xf0)
      [<c009f8ec>] (free_hot_cold_page+0x18/0xf0) from [<c00b5444>] (handle_pte_fault+0xcf4/0xdc8)
      [<c00b5444>] (handle_pte_fault+0xcf4/0xdc8) from [<c00b6458>] (handle_mm_fault+0xf4/0x120)
      [<c00b6458>] (handle_mm_fault+0xf4/0x120) from [<c0013754>] (do_page_fault+0xfc/0x354)
      [<c0013754>] (do_page_fault+0xfc/0x354) from [<c0008400>] (do_DataAbort+0x2c/0x90)
      [<c0008400>] (do_DataAbort+0x2c/0x90) from [<c0008fb4>] (__dabt_usr+0x34/0x40)
      
      The bad pfn:fa442 is not system memory(mem=384M mem=512M@7680M), after debugging,
      I find in page fault handler, will get wrong pfn from pte just after set pte,
      as follow:
      do_anonymous_page()
      {
      	...
      	set_pte_at(mm, address, page_table, entry);
      
      	//debug code
      	pfn = pte_pfn(entry);
      	pr_info("pfn:0x%lx, pte:0x%llxn", pfn, pte_val(entry));
      
      	//read out the pte just set
      	new_pte = pte_offset_map(pmd, address);
      	new_pfn = pte_pfn(*new_pte);
      	pr_info("new pfn:0x%lx, new pte:0x%llxn", pfn, pte_val(entry));
      	...
      }
      
      pfn:   0x1fa4f5,     pte:0xc00001fa4f575f
      new_pfn:0xfa4f5, new_pte:0xc00000fa4f5f5f	//new pfn/pte is wrong.
      
      The bug is happened in cpu_v7_set_pte_ext(ptep, pte):
      An LPAE PTE is a 64bit quantity, passed to cpu_v7_set_pte_ext in the r2 and r3 registers.
      On an LE kernel, r2 contains the LSB of the PTE, and r3 the MSB.
      On a BE kernel, the assignment is reversed.
      
      Unfortunately, the current code always assumes the LE case,
      leading to corruption of the PTE when clearing/setting bits.
      
      This patch fixes this issue much like it has been done already in the
      cpu_v7_switch_mm case.
      
      CC stable <stable@vger.kernel.org>
      Signed-off-by: default avatarJianguo Wu <wujianguo@huawei.com>
      Acked-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      Acked-by: default avatarWill Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      86f40622
    • Catalin Marinas's avatar
      ARM: 8036/1: Enable IRQs before attempting to read user space in __und_usr · 1417a6b8
      Catalin Marinas authored
      
      
      The Undef abort handler in the kernel reads the undefined instruction
      from user space. If the page table was modified from another CPU, the
      user access could fail and do_page_fault() will be executed with
      interrupts disabled. This can potentially deadlock on ARM11MPCore or on
      Cortex-A15 with erratum 798181 workaround enabled (both implying IPI for
      TLB maintenance with page table lock held).
      
      This patch enables the IRQs in __und_usr before attempting to read the
      instruction from user space.
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Tested-by: default avatarArun KS <getarunks@gmail.com>
      Cc: Hartley Sweeten <hsweeten@visionengravers.com>
      Cc: Ryan Mallon <rmallon@gmail.com>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      1417a6b8
    • Catalin Marinas's avatar
      ARM: 8035/1: Disable preemption in crunch_task_enable() · bc94081c
      Catalin Marinas authored
      
      
      This patch is in preparation for calling the crunch_task_enable()
      function with interrupts enabled.
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Cc: Hartley Sweeten <hsweeten@visionengravers.com>
      Cc: Ryan Mallon <rmallon@gmail.com>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      bc94081c
    • Catalin Marinas's avatar
      ARM: 8034/1: Disable preemption in iwmmxt_task_enable() · 431a84b1
      Catalin Marinas authored
      
      
      This patch is in preparation for calling the iwmmxt_task_enable()
      function with interrupts enabled.
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      431a84b1
  4. 23 Apr, 2014 2 commits
  5. 22 Apr, 2014 4 commits
  6. 14 Apr, 2014 1 commit
  7. 13 Apr, 2014 4 commits
  8. 12 Apr, 2014 18 commits
    • Linus Torvalds's avatar
      Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · 321d03c8
      Linus Torvalds authored
      Pull misc kbuild changes from Michal Marek:
       "Here is the non-critical part of kbuild:
         - One bogus coccinelle check removed, one check fixed not to suggest
           the obsolete PTR_RET macro
         - scripts/tags.sh does not index the generated *.mod.c files
         - new objdiff tool to list differences between two versions of an
           object file
         - A fix for scripts/bootgraph.pl"
      
      * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        scripts/coccinelle: Use PTR_ERR_OR_ZERO
        scripts/bootgraph.pl: Add graphic header
        scripts: objdiff: detect object code changes between two commits
        Coccicheck: Remove memcpy to struct assignment test
        scripts/tags.sh: Ignore *.mod.c
      321d03c8
    • Mikulas Patocka's avatar
      sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue · fd1232b2
      Mikulas Patocka authored
      
      
      This patch fixes I/O errors with the sym53c8xx_2 driver when the disk
      returns QUEUE FULL status.
      
      When the controller encounters an error (including QUEUE FULL or BUSY
      status), it aborts all not yet submitted requests in the function
      sym_dequeue_from_squeue.
      
      This function aborts them with DID_SOFT_ERROR.
      
      If the disk has full tag queue, the request that caused the overflow is
      aborted with QUEUE FULL status (and the scsi midlayer properly retries
      it until it is accepted by the disk), but the sym53c8xx_2 driver aborts
      the following requests with DID_SOFT_ERROR --- for them, the midlayer
      does just a few retries and then signals the error up to sd.
      
      The result is that disk returning QUEUE FULL causes request failures.
      
      The error was reproduced on 53c895 with COMPAQ BD03685A24 disk
      (rebranded ST336607LC) with command queue 48 or 64 tags.  The disk has
      64 tags, but under some access patterns it return QUEUE FULL when there
      are less than 64 pending tags.  The SCSI specification allows returning
      QUEUE FULL anytime and it is up to the host to retry.
      Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
      Cc: Matthew Wilcox <matthew@wil.cx>
      Cc: James Bottomley <JBottomley@Parallels.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      fd1232b2
    • Paul Mackerras's avatar
      powerpc: Don't try to set LPCR unless we're in hypervisor mode · 18aa0da3
      Paul Mackerras authored
      Commit 8f619b54
      
       ("powerpc/ppc64: Do not turn AIL (reloc-on
      interrupts) too early") added code to set the AIL bit in the LPCR
      without checking whether the kernel is running in hypervisor mode.  The
      result is that when the kernel is running as a guest (i.e., under
      PowerKVM or PowerVM), the processor takes a privileged instruction
      interrupt at that point, causing a panic.  The visible result is that
      the kernel hangs after printing "returning from prom_init".
      
      This fixes it by checking for hypervisor mode being available before
      setting LPCR.  If we are not in hypervisor mode, we enable relocation-on
      interrupts later in pSeries_setup_arch using the H_SET_MODE hcall.
      Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      Acked-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      18aa0da3
    • Davidlohr Bueso's avatar
      futex: update documentation for ordering guarantees · d7e8af1a
      Davidlohr Bueso authored
      Commits 11d4616b ("futex: revert back to the explicit waiter
      counting code") and 69cd9eba
      
       ("futex: avoid race between requeue and
      wake") changed some of the finer details of how we think about futexes.
      One was a late fix and the other a consequence of overlooking the whole
      requeuing logic.
      
      The first change caused our documentation to be incorrect, and the
      second made us aware that we need to explicitly add more details to it.
      Signed-off-by: default avatarDavidlohr Bueso <davidlohr@hp.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      d7e8af1a
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 454fd351
      Linus Torvalds authored
      Pull yet more networking updates from David Miller:
      
       1) Various fixes to the new Redpine Signals wireless driver, from
          Fariya Fatima.
      
       2) L2TP PPP connect code takes PMTU from the wrong socket, fix from
          Dmitry Petukhov.
      
       3) UFO and TSO packets differ in whether they include the protocol
          header in gso_size, account for that in skb_gso_transport_seglen().
         From Florian Westphal.
      
       4) If VLAN untagging fails, we double free the SKB in the bridging
          output path.  From Toshiaki Makita.
      
       5) Several call sites of sk->sk_data_ready() were referencing an SKB
          just added to the socket receive queue in order to calculate the
          second argument via skb->len.  This is dangerous because the moment
          the skb is added to the receive queue it can be consumed in another
          context and freed up.
      
          It turns out also that none of the sk->sk_data_ready()
          implementations even care about this second argument.
      
          So just kill it off and thus fix all these use-after-free bugs as a
          side effect.
      
       6) Fix inverted test in tcp_v6_send_response(), from Lorenzo Colitti.
      
       7) pktgen needs to do locking properly for LLTX devices, from Daniel
          Borkmann.
      
       8) xen-netfront driver initializes TX array entries in RX loop :-) From
          Vincenzo Maffione.
      
       9) After refactoring, some tunnel drivers allow a tunnel to be
          configured on top itself.  Fix from Nicolas Dichtel.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits)
        vti: don't allow to add the same tunnel twice
        gre: don't allow to add the same tunnel twice
        drivers: net: xen-netfront: fix array initialization bug
        pktgen: be friendly to LLTX devices
        r8152: check RTL8152_UNPLUG
        net: sun4i-emac: add promiscuous support
        net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
        net: ipv6: Fix oif in TCP SYN+ACK route lookup.
        drivers: net: cpsw: enable interrupts after napi enable and clearing previous interrupts
        drivers: net: cpsw: discard all packets received when interface is down
        net: Fix use after free by removing length arg from sk_data_ready callbacks.
        Drivers: net: hyperv: Address UDP checksum issues
        Drivers: net: hyperv: Negotiate suitable ndis version for offload support
        Drivers: net: hyperv: Allocate memory for all possible per-pecket information
        bridge: Fix double free and memory leak around br_allowed_ingress
        bonding: Remove debug_fs files when module init fails
        i40evf: program RSS LUT correctly
        i40evf: remove open-coded skb_cow_head
        ixgb: remove open-coded skb_cow_head
        igbvf: remove open-coded skb_cow_head
        ...
      454fd351
    • Linus Torvalds's avatar
      Merge tag 'blackfin-for-linus' of... · fd18f00d
      Linus Torvalds authored
      Merge tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux
      
      Pull blackfin updates from Steven Miao:
       "Code cleanup, some previously ignored patches, and bug fixes"
      
      * tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux:
        blackfin: cleanup board files
        bf609: clock: drop unused clock bit set/clear functions
        Blackfin: bf537: rename "CONFIG_ADT75"
        Blackfin: bf537: rename "CONFIG_AD7314"
        Blackfin: bf537: rename ad2s120x ->ad2s1200
        blackfin: bf537: fix typo "CONFIG_SND_SOC_ADV80X_MODULE"
        blackfin: dma: current count mmr is read only
        bfin_crc: Move architecture independant crc header file out of the blackfin folder.
        bf54x: drop unuesd HOST status,control,timeout registers bit define macros
        blackfin: portmux: cleanup head file
        Blackfin: remove "config IP_CHECKSUM_L1"
        blackfin: Remove GENERIC_GPIO config option again
        blackfin:Use generic /proc/interrupts implementation
        blackfin: bf60x: fix typo "CONFIG_PM_BFIN_WAKE_PA15_POL"
      fd18f00d
    • Linus Torvalds's avatar
      Merge tag 'remoteproc-3.15-cleanups' of... · de0c9cf9
      Linus Torvalds authored
      Merge tag 'remoteproc-3.15-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
      
      Pull remoteproc cleanups from Ohad Ben-Cohen:
       "Several remoteproc cleanup patches coming from Jingoo Han, Julia
        Lawall and Uwe Kleine-König"
      
      * tag 'remoteproc-3.15-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
        remoteproc/ste_modem: staticize local symbols
        remoteproc/davinci: simplify use of devm_ioremap_resource
        remoteproc/davinci: drop needless devm_clk_put
      de0c9cf9
    • Linus Torvalds's avatar
      Merge tag 'llvmlinux-for-v3.15' of git://git.linuxfoundation.org/llvmlinux/kernel · 09c9b61d
      Linus Torvalds authored
      Pull llvm patches from Behan Webster:
       "These are some initial updates to support compiling the kernel with
        clang.
      
        These patches have been through the proper reviews to the best of my
        ability, and have been soaking in linux-next for a few weeks.  These
        patches by themselves still do not completely allow clang to be used
        with the kernel code, but lay the foundation for other patches which
        are still under review.
      
        Several other of the LLVMLinux patches have been already added via
        maintainer trees"
      
      * tag 'llvmlinux-for-v3.15' of git://git.linuxfoundation.org/llvmlinux/kernel:
        x86: LLVMLinux: Fix "incomplete type const struct x86cpu_device_id"
        x86 kbuild: LLVMLinux: More cc-options added for clang
        x86, acpi: LLVMLinux: Remove nested functions from Thinkpad ACPI
        LLVMLinux: Add support for clang to compiler.h and new compiler-clang.h
        LLVMLinux: Remove warning about returning an uninitialized variable
        kbuild: LLVMLinux: Fix LINUX_COMPILER definition script for compilation with clang
        Documentation: LLVMLinux: Update Documentation/dontdiff
        kbuild: LLVMLinux: Adapt warnings for compilation with clang
        kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang
      09c9b61d
    • Linus Torvalds's avatar
      Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · 141eaccd
      Linus Torvalds authored
      Pull SCSI target updates from Nicholas Bellinger:
       "Here are the target pending updates for v3.15-rc1.  Apologies in
        advance for waiting until the second to last day of the merge window
        to send these out.
      
        The highlights this round include:
      
         - iser-target support for T10 PI (DIF) offloads (Sagi + Or)
         - Fix Task Aborted Status (TAS) handling in target-core (Alex Leung)
         - Pass in transport supported PI at session initialization (Sagi + MKP + nab)
         - Add WRITE_INSERT + READ_STRIP T10 PI support in target-core (nab + Sagi)
         - Fix iscsi-target ERL=2 ASYNC_EVENT connection pointer bug (nab)
         - Fix tcm_fc use-after-free of ft_tpg (Andy Grover)
         - Use correct ib_sg_dma primitives in ib_isert (Mike Marciniszyn)
      
        Also, note the virtio-scsi + vhost-scsi changes to expose T10 PI
        metadata into KVM guest have been left-out for now, as there where a
        few comments from MST + Paolo that where not able to be addressed in
        time for v3.15.  Please expect this feature for v3.16-rc1"
      
      * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (43 commits)
        ib_srpt: Use correct ib_sg_dma primitives
        target/tcm_fc: Rename ft_tport_create to ft_tport_get
        target/tcm_fc: Rename ft_{add,del}_lport to {add,del}_wwn
        target/tcm_fc: Rename structs and list members for clarity
        target/tcm_fc: Limit to 1 TPG per wwn
        target/tcm_fc: Don't export ft_lport_list
        target/tcm_fc: Fix use-after-free of ft_tpg
        target: Add check to prevent Abort Task from aborting itself
        target: Enable READ_STRIP emulation in target_complete_ok_work
        target/sbc: Add sbc_dif_read_strip software emulation
        target: Enable WRITE_INSERT emulation in target_execute_cmd
        target/sbc: Add sbc_dif_generate software emulation
        target/sbc: Only expose PI read_cap16 bits when supported by fabric
        target/spc: Only expose PI mode page bits when supported by fabric
        target/spc: Only expose PI inquiry bits when supported by fabric
        target: Pass in transport supported PI at session initialization
        target/iblock: Fix double bioset_integrity_free bug
        Target/sbc: Initialize COMPARE_AND_WRITE write_sg scatterlist
        target/rd: T10-Dif: RAM disk is allocating more space than required.
        iscsi-target: Fix ERL=2 ASYNC_EVENT connection pointer bug
        ...
      141eaccd
    • Linus Torvalds's avatar
      Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media · 93094449
      Linus Torvalds authored
      Pull media fixes from Mauro Carvalho Chehab:
       "A series of bug fix patches for v3.15-rc1.  Most are just driver
        fixes.  There are some changes at remote controller core level, fixing
        some definitions on a new API added for Kernel v3.15.
      
        It also adds the missing include at include/uapi/linux/v4l2-common.h,
        to allow its compilation on userspace, as pointed by you"
      
      * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (24 commits)
        [media] gpsca: remove the risk of a division by zero
        [media] stk1160: warrant a NUL terminated string
        [media] v4l: ti-vpe: retain v4l2_buffer flags for captured buffers
        [media] v4l: ti-vpe: Set correct field parameter for output and capture buffers
        [media] v4l: ti-vpe: zero out reserved fields in try_fmt
        [media] v4l: ti-vpe: Fix initial configuration queue data
        [media] v4l: ti-vpe: Use correct bus_info name for the device in querycap
        [media] v4l: ti-vpe: report correct capabilities in querycap
        [media] v4l: ti-vpe: Allow usage of smaller images
        [media] v4l: ti-vpe: Use video_device_release_empty
        [media] v4l: ti-vpe: Make sure in job_ready that we have the needed number of dst_bufs
        [media] lgdt3305: include sleep functionality in lgdt3304_ops
        [media] drx-j: use customise option correctly
        [media] m88rs2000: fix sparse static warnings
        [media] r820t: fix size and init values
        [media] rc-core: remove generic scancode filter
        [media] rc-core: split dev->s_filter
        [media] rc-core: do not change 32bit NEC scancode format for now
        [media] rtl28xxu: remove duplicate ID 0458:707f Genius TVGo DVB-T03
        [media] xc2028: add missing break to switch
        ...
      93094449
    • Linus Torvalds's avatar
      Merge tag 'ntb-3.15' of git://github.com/jonmason/ntb · 07f5fef9
      Linus Torvalds authored
      Pull PCIe non-transparent bridge fixes and features from Jon Mason:
       "NTB driver bug fixes to address issues in list traversal, skb leak in
        ntb_netdev, a typo, and a leak of msix entries in the error path.
        Clean ups of the event handling logic, as well as a overall style
        cleanup.  Finally, the driver was converted to use the new
        pci_enable_msix_range logic (and the refactoring to go along with it)"
      
      * tag 'ntb-3.15' of git://github.com/jonmason/ntb:
        ntb: Use pci_enable_msix_range() instead of pci_enable_msix()
        ntb: Split ntb_setup_msix() into separate BWD/SNB routines
        ntb: Use pci_msix_vec_count() to obtain number of MSI-Xs
        NTB: Code Style Clean-up
        NTB: client event cleanup
        ntb: Fix leakage of ntb_device::msix_entries[] array
        NTB: Fix typo in setting one translation register
        ntb_netdev: Fix skb free issue in open
        ntb_netdev: Fix list_for_each_entry exit issue
      07f5fef9
    • Linus Torvalds's avatar
      ceph: fix pr_fmt() redefinition · 96c57ade
      Linus Torvalds authored
      
      
      The vfs merge caused a latent bug to show up:
      
         In file included from fs/ceph/super.h:4:0,
                          from fs/ceph/ioctl.c:3:
         include/linux/ceph/ceph_debug.h:4:0: warning: "pr_fmt" redefined [enabled by default]
          #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
          ^
         In file included from include/linux/kernel.h:13:0,
                          from include/linux/uio.h:12,
                          from include/linux/socket.h:7,
                          from include/uapi/linux/in.h:22,
                          from include/linux/in.h:23,
                          from fs/ceph/ioctl.c:1:
         include/linux/printk.h:214:0: note: this is the location of the previous definition
          #define pr_fmt(fmt) fmt
          ^
      
      where the reason is that <linux/ceph_debug.h> is included much too late
      for the "pr_fmt()" define.
      
      The include of <linux/ceph_debug.h> needs to be the first include in the
      file, but fs/ceph/ioctl.c had for some reason missed that, and it wasn't
      noticeable until some unrelated header file changes brought in an
      indirect earlier include of <linux/kernel.h>.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      96c57ade
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 5166701b
      Linus Torvalds authored
      Pull vfs updates from Al Viro:
       "The first vfs pile, with deep apologies for being very late in this
        window.
      
        Assorted cleanups and fixes, plus a large preparatory part of iov_iter
        work.  There's a lot more of that, but it'll probably go into the next
        merge window - it *does* shape up nicely, removes a lot of
        boilerplate, gets rid of locking inconsistencie between aio_write and
        splice_write and I hope to get Kent's direct-io rewrite merged into
        the same queue, but some of the stuff after this point is having
        (mostly trivial) conflicts with the things already merged into
        mainline and with some I want more testing.
      
        This one passes LTP and xfstests without regressions, in addition to
        usual beating.  BTW, readahead02 in ltp syscalls testsuite has started
        giving failures since "mm/readahead.c: fix readahead failure for
        memoryless NUMA nodes and limit readahead pages" - might be a false
        positive, might be a real regression..."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
        missing bits of "splice: fix racy pipe->buffers uses"
        cifs: fix the race in cifs_writev()
        ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
        kill generic_file_buffered_write()
        ocfs2_file_aio_write(): switch to generic_perform_write()
        ceph_aio_write(): switch to generic_perform_write()
        xfs_file_buffered_aio_write(): switch to generic_perform_write()
        export generic_perform_write(), start getting rid of generic_file_buffer_write()
        generic_file_direct_write(): get rid of ppos argument
        btrfs_file_aio_write(): get rid of ppos
        kill the 5th argument of generic_file_buffered_write()
        kill the 4th argument of __generic_file_aio_write()
        lustre: don't open-code kernel_recvmsg()
        ocfs2: don't open-code kernel_recvmsg()
        drbd: don't open-code kernel_recvmsg()
        constify blk_rq_map_user_iov() and friends
        lustre: switch to kernel_sendmsg()
        ocfs2: don't open-code kernel_sendmsg()
        take iov_iter stuff to mm/iov_iter.c
        process_vm_access: tidy up a bit
        ...
      5166701b
    • David S. Miller's avatar
      Merge branch 'tunnels' · eda43ce0
      David S. Miller authored
      
      
      Nicolas Dichtel says:
      
      ====================
      tunnels: don't allow to add the same tunnel twice
      
      This series fixes the check of an existing tunnel with the same
      parameters when a new tunnel is added.  I've checked all users of
      ip_tunnel_newlink(): gre, gretap, ipip and vti. The bug exists only
      for gre and vti.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      eda43ce0
    • Nicolas Dichtel's avatar
      vti: don't allow to add the same tunnel twice · 8d89dcdf
      Nicolas Dichtel authored
      Before the patch, it was possible to add two times the same tunnel:
      ip l a vti1 type vti remote 10.16.0.121 local 10.16.0.249 key 41
      ip l a vti2 type vti remote 10.16.0.121 local 10.16.0.249 key 41
      
      It was possible, because ip_tunnel_newlink() calls ip_tunnel_find() with the
      argument dev->type, which was set only later (when calling ndo_init handler
      in register_netdevice()). Let's set this type in the setup handler, which is
      called before newlink handler.
      
      Introduced by commit b9959fd3
      
       ("vti: switch to new ip tunnel code").
      
      CC: Cong Wang <amwang@redhat.com>
      CC: Steffen Klassert <steffen.klassert@secunet.com>
      Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8d89dcdf
    • Nicolas Dichtel's avatar
      gre: don't allow to add the same tunnel twice · 5a455275
      Nicolas Dichtel authored
      Before the patch, it was possible to add two times the same tunnel:
      ip l a gre1 type gre remote 10.16.0.121 local 10.16.0.249
      ip l a gre2 type gre remote 10.16.0.121 local 10.16.0.249
      
      It was possible, because ip_tunnel_newlink() calls ip_tunnel_find() with the
      argument dev->type, which was set only later (when calling ndo_init handler
      in register_netdevice()). Let's set this type in the setup handler, which is
      called before newlink handler.
      
      Introduced by commit c5441932
      
       ("GRE: Refactor GRE tunneling code.").
      
      CC: Pravin B Shelar <pshelar@nicira.com>
      Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5a455275
    • Vincenzo Maffione's avatar
      drivers: net: xen-netfront: fix array initialization bug · 810d8ced
      Vincenzo Maffione authored
      
      
      This patch fixes the initialization of an array used in the TX
      datapath that was mistakenly initialized together with the
      RX datapath arrays. An out of range array access could happen
      when RX and TX rings had different sizes.
      Signed-off-by: default avatarVincenzo Maffione <v.maffione@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      810d8ced
    • David S. Miller's avatar
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net · dcfba949
      David S. Miller authored
      
      
      Jeff Kirsher says:
      
      ====================
      Intel Wired LAN Driver Updates
      
      This series contains updates to e1000, e1000e, igb, igbvf, ixgb, ixgbe,
      ixgbevf and i40evf.
      
      Mark fixes an issue with ixgbe and ixgbevf by adding a bit to indicate
      when workqueues have been initialized.  This permits the register read
      error handling from attempting to use them prior to that, which also
      generates warnings.  Checking for a detected removal after initializing
      the work queues allows the probe function to return an error without
      getting the workqueue involved.  Further, if the error_detected
      callback is entered before the workqueues are initialized, exit without
      recovery since the device initialization was so truncated.
      
      Francois Romieu provides several patches to all the drivers to remove
      the open coded skb_cow_head.
      
      Jakub Kicinski provides a fix for igb where last_rx_timestamp should be
      updated only when Rx time stamp is read.
      
      Mitch provides a fix for i40evf where a recent change broke the RSS LUT
      programming causing it to be programmed with all 0's.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      dcfba949