1. 08 10月, 2012 4 次提交
    • P
      drivers/net/irda/irtty-sir.c: fix error return code · 87286477
      Peter Senna Tschudin 提交于
      The function irtty_open() return 0 for success and negative value
      for most of its internal tests failures. There is one exception
      that is error case going to out_put:. For this error case, the
      function abort its success execution path, but returns non negative
      value, making it difficult for a caller function to notice the error.
      
      This patch fixes the error case that do not return negative value.
      
      This was found by Coccinelle, but the code change was made by hand.
      This patch is not robot generated.
      
      A simplified version of the semantic match that finds this problem is
      as follows: (http://coccinelle.lip6.fr/)
      
      // <smpl>
      (
      if@p1 (\(ret < 0\|ret != 0\))
       { ... return ret; }
      |
      ret@p1 = 0
      )
      ... when != ret = e1
          when != &ret
      *if(...)
      {
        ... when != ret = e2
            when forall
       return ret;
      }
      // </smpl>
      Signed-off-by: NPeter Senna Tschudin <peter.senna@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      87286477
    • P
      drivers/net/ethernet/sis/sis900.c: fix error return code · 0968a9d1
      Peter Senna Tschudin 提交于
      The function sis900_probe() return 0 for success and negative value
      for most of its internal tests failures. There is one exception
      that is error case going to err_out_cleardev:. Fore this error case,
      the function abort its success execution path, but returns non negative
      value, making it difficult for a caller function to notice the error.
      
      This patch fixes the error case that do not return negative value.
      
      This was found by Coccinelle, but the code change was made by hand.
      This patch is not robot generated.
      
      A simplified version of the semantic match that finds this problem is
      as follows: (http://coccinelle.lip6.fr/)
      
      // <smpl>
      (
      if@p1 (\(ret < 0\|ret != 0\))
       { ... return ret; }
      |
      ret@p1 = 0
      )
      ... when != ret = e1
          when != &ret
      *if(...)
      {
        ... when != ret = e2
            when forall
       return ret;
      }
      // </smpl>
      Signed-off-by: NPeter Senna Tschudin <peter.senna@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      0968a9d1
    • P
      drivers/net/ethernet/natsemi/natsemi.c: fix error return code · 52428d91
      Peter Senna Tschudin 提交于
      The function natsemi_probe1() return 0 for success and negative value
      for most of its internal tests failures. There is one exception
      that is error case going to err_create_file:. Fore this error case the
      function abort its success execution path, but returns non negative value,
      making it difficult for a caller function to notice the error.
      
      This patch fixes the error case that do not return negative value.
      
      This was found by Coccinelle, but the code change was made by hand.
      This patch is not robot generated.
      
      A simplified version of the semantic match that finds this problem is
      as follows: (http://coccinelle.lip6.fr/)
      
      // <smpl>
      (
      if@p1 (\(ret < 0\|ret != 0\))
       { ... return ret; }
      |
      ret@p1 = 0
      )
      ... when != ret = e1
          when != &ret
      *if(...)
      {
        ... when != ret = e2
            when forall
       return ret;
      }
      // </smpl>
      Signed-off-by: NPeter Senna Tschudin <peter.senna@gmail.com>
      Acked-by: NFrancois Romieu <romieu@fr.zoreil.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      52428d91
    • P
      drivers/net/ethernet/dec/tulip/dmfe.c: fix error return code · 5b896029
      Peter Senna Tschudin 提交于
      The function dmfe_init_one() return 0 for success and negative value
      for most of its internal tests failures. There are three exceptions
      that are error cases going to err_out_*:. Fore this three cases the
      function abort its success execution path, but returns non negative
      value, making it dificult for a caller function to notice the error.
      
      This patch fixes the error cases that do not return negative values.
      
      This was found by Coccinelle, but the code change was made by hand.
      This patch is not robot generated.
      
      A simplified version of the semantic match that finds this problem is
      as follows: (http://coccinelle.lip6.fr/)
      
      // <smpl>
      (
      if@p1 (\(ret < 0\|ret != 0\))
       { ... return ret; }
      |
      ret@p1 = 0
      )
      ... when != ret = e1
          when != &ret
      *if(...)
      {
        ... when != ret = e2
            when forall
       return ret;
      }
      // </smpl>
      Signed-off-by: NPeter Senna Tschudin <peter.senna@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      5b896029
  2. 07 10月, 2012 6 次提交
    • E
      net: remove skb recycling · acb600de
      Eric Dumazet 提交于
      Over time, skb recycling infrastructure got litle interest and
      many bugs. Generic rx path skb allocation is now using page
      fragments for efficient GRO / TCP coalescing, and recyling
      a tx skb for rx path is not worth the pain.
      
      Last identified bug is that fat skbs can be recycled
      and it can endup using high order pages after few iterations.
      
      With help from Maxime Bizon, who pointed out that commit
      87151b86 (net: allow pskb_expand_head() to get maximum tailroom)
      introduced this regression for recycled skbs.
      
      Instead of fixing this bug, lets remove skb recycling.
      
      Drivers wanting really hot skbs should use build_skb() anyway,
      to allocate/populate sk_buff right before netif_receive_skb()
      Signed-off-by: NEric Dumazet <edumazet@google.com>
      Cc: Maxime Bizon <mbizon@freebox.fr>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      acb600de
    • G
      infiniband: pass rdma_cm module to netlink_dump_start · 809d5fc9
      Gao feng 提交于
      set netlink_dump_control.module to avoid panic.
      Signed-off-by: NGao feng <gaofeng@cn.fujitsu.com>
      Cc: Roland Dreier <roland@kernel.org>
      Cc: Sean Hefty <sean.hefty@intel.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      809d5fc9
    • G
      netlink: add reference of module in netlink_dump_start · 6dc878a8
      Gao feng 提交于
      I get a panic when I use ss -a and rmmod inet_diag at the
      same time.
      
      It's because netlink_dump uses inet_diag_dump which belongs to module
      inet_diag.
      
      I search the codes and find many modules have the same problem.  We
      need to add a reference to the module which the cb->dump belongs to.
      
      Thanks for all help from Stephen,Jan,Eric,Steffen and Pablo.
      
      Change From v3:
      change netlink_dump_start to inline,suggestion from Pablo and
      Eric.
      
      Change From v2:
      delete netlink_dump_done,and call module_put in netlink_dump
      and netlink_sock_destruct.
      Signed-off-by: NGao feng <gaofeng@cn.fujitsu.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6dc878a8
    • L
      Merge branch 'uapi-prep' of git://git.infradead.org/users/dhowells/linux-headers · ed5062dd
      Linus Torvalds 提交于
      Pull UAPI disintegration fixes from David Howells:
       "There are three main parts:
      
       (1) I found I needed some more fixups in the wake of testing Arm64
           (some asm/unistd.h files had weird guards that caused problems -
           mostly in arches for which I don't have a compiler) and some
           __KERNEL__ splitting needed to take place in Arm64.
      
       (2) I found that c6x was missing some __KERNEL__ guards in its
           asm/signal.h.  Mark Salter pointed me at a tree with a patch to
           remove that file entirely and use the asm-generic variant instead.
      
       (3) Lastly, m68k turned out to have a header installation problem due
           to it lacking a kvm_para.h file.
      
           The conditional installation bits for linux/kvm_para.h, linux/kvm.h
           and linux/a.out.h weren't very well specified - and didn't work if
           an arch didn't have the asm/ version of that file, but there *was*
           an asm-generic/ version.
      
           It seems the "ifneq $((wildcard ...),)" for each of those three
           headers in include/kernel/Kbuild is invoked twice during header
           installation, and the second time it matches on the just installed
           asm-generic/kvm_para.h file and thus incorrectly installs
           linux/kvm_para.h as well.
      
           Most arches actually have an asm/kvm_para.h, so this wasn't
           detectable in those."
      
      * 'uapi-prep' of git://git.infradead.org/users/dhowells/linux-headers:
        UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
        c6x: remove c6x signal.h
        UAPI: Split compound conditionals containing __KERNEL__ in Arm64
        UAPI: Fix the guards on various asm/unistd.h files
        c6x: make dsk6455 the default config
      ed5062dd
    • L
      Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux · 125b79d7
      Linus Torvalds 提交于
      Pull SLAB changes from Pekka Enberg:
       "New and noteworthy:
      
        * More SLAB allocator unification patches from Christoph Lameter and
          others.  This paves the way for slab memcg patches that hopefully
          will land in v3.8.
      
        * SLAB tracing improvements from Ezequiel Garcia.
      
        * Kernel tainting upon SLAB corruption from Dave Jones.
      
        * Miscellanous SLAB allocator bug fixes and improvements from various
          people."
      
      * 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: (43 commits)
        slab: Fix build failure in __kmem_cache_create()
        slub: init_kmem_cache_cpus() and put_cpu_partial() can be static
        mm/slab: Fix kmem_cache_alloc_node_trace() declaration
        Revert "mm/slab: Fix kmem_cache_alloc_node_trace() declaration"
        mm, slob: fix build breakage in __kmalloc_node_track_caller
        mm/slab: Fix kmem_cache_alloc_node_trace() declaration
        mm/slab: Fix typo _RET_IP -> _RET_IP_
        mm, slub: Rename slab_alloc() -> slab_alloc_node() to match SLAB
        mm, slab: Rename __cache_alloc() -> slab_alloc()
        mm, slab: Match SLAB and SLUB kmem_cache_alloc_xxx_trace() prototype
        mm, slab: Replace 'caller' type, void* -> unsigned long
        mm, slob: Add support for kmalloc_track_caller()
        mm, slab: Remove silly function slab_buffer_size()
        mm, slob: Use NUMA_NO_NODE instead of -1
        mm, sl[au]b: Taint kernel when we detect a corrupted slab
        slab: Only define slab_error for DEBUG
        slab: fix the DEADLOCK issue on l3 alien lock
        slub: Zero initial memory segment for kmem_cache and kmem_cache_node
        Revert "mm/sl[aou]b: Move sysfs_slab_add to common"
        mm/sl[aou]b: Move kmem_cache refcounting to common code
        ...
      125b79d7
    • L
      Merge tag 'stable/for-linus-3.7-arm-tag' of... · f1c6872e
      Linus Torvalds 提交于
      Merge tag 'stable/for-linus-3.7-arm-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
      
      Pull ADM Xen support from Konrad Rzeszutek Wilk:
      
        Features:
         * Allow a Linux guest to boot as initial domain and as normal guests
           on Xen on ARM (specifically ARMv7 with virtualized extensions).  PV
           console, block and network frontend/backends are working.
        Bug-fixes:
         * Fix compile linux-next fallout.
         * Fix PVHVM bootup crashing.
      
        The Xen-unstable hypervisor (so will be 4.3 in a ~6 months), supports
        ARMv7 platforms.
      
        The goal in implementing this architecture is to exploit the hardware
        as much as possible.  That means use as little as possible of PV
        operations (so no PV MMU) - and use existing PV drivers for I/Os
        (network, block, console, etc).  This is similar to how PVHVM guests
        operate in X86 platform nowadays - except that on ARM there is no need
        for QEMU.  The end result is that we share a lot of the generic Xen
        drivers and infrastructure.
      
        Details on how to compile/boot/etc are available at this Wiki:
      
          http://wiki.xen.org/wiki/Xen_ARMv7_with_Virtualization_Extensions
      
        and this blog has links to a technical discussion/presentations on the
        overall architecture:
      
          http://blog.xen.org/index.php/2012/09/21/xensummit-sessions-new-pvh-virtualisation-mode-for-arm-cortex-a15arm-servers-and-x86/
      
      * tag 'stable/for-linus-3.7-arm-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: (21 commits)
        xen/xen_initial_domain: check that xen_start_info is initialized
        xen: mark xen_init_IRQ __init
        xen/Makefile: fix dom-y build
        arm: introduce a DTS for Xen unprivileged virtual machines
        MAINTAINERS: add myself as Xen ARM maintainer
        xen/arm: compile netback
        xen/arm: compile blkfront and blkback
        xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree
        xen/arm: receive Xen events on ARM
        xen/arm: initialize grant_table on ARM
        xen/arm: get privilege status
        xen/arm: introduce CONFIG_XEN on ARM
        xen: do not compile manage, balloon, pci, acpi, pcpu and cpu_hotplug on ARM
        xen/arm: Introduce xen_ulong_t for unsigned long
        xen/arm: Xen detection and shared_info page mapping
        docs: Xen ARM DT bindings
        xen/arm: empty implementation of grant_table arch specific functions
        xen/arm: sync_bitops
        xen/arm: page.h definitions
        xen/arm: hypercalls
        ...
      f1c6872e
  3. 06 10月, 2012 30 次提交