1. 28 May, 2013 5 commits
  2. 28 Apr, 2013 1 commit
  3. 27 Apr, 2013 3 commits
  4. 26 Apr, 2013 6 commits
  5. 25 Apr, 2013 6 commits
    • H. Peter Anvin's avatar
      Merge tag 'efi-urgent' into x86/urgent · 697dfd88
      H. Peter Anvin authored
      
      
       * The EFI variable anti-bricking algorithm merged in -rc8 broke booting
         on some Apple machines because they implement EFI spec 1.10, which
         doesn't provide a QueryVariableInfo() runtime function and the logic
         used to check for the existence of that function was insufficient.
         Fix from Josh Boyer.
      
       * The anti-bricking algorithm also introduced a compiler warning on
         32-bit. Fix from Borislav Petkov.
      Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      697dfd88
    • John David Anglin's avatar
      parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates · bda079d3
      John David Anglin authored
      
      
      User applications running on SMP kernels have long suffered from instability
      and random segmentation faults.  This patch improves the situation although
      there is more work to be done.
      
      One of the problems is the various routines in pgtable.h that update page table
      entries use different locking mechanisms, or no lock at all (set_pte_at).  This
      change modifies the routines to all use the same lock pa_dbit_lock.  This lock
      is used for dirty bit updates in the interruption code. The patch also purges
      the TLB entries associated with the PTE to ensure that inconsistent values are
      not used after the page table entry is updated.  The UP and SMP code are now
      identical.
      
      The change also includes a minor update to the purge_tlb_entries function in
      cache.c to improve its efficiency.
      Signed-off-by: default avatarJohn David Anglin <dave.anglin@bell.net>
      Cc: Helge Deller <deller@gmx.de>
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      bda079d3
    • Helge Deller's avatar
      parisc: disable -mlong-calls compiler option for kernel modules · cf71130d
      Helge Deller authored
      CONFIG_MLONGCALLS was introduced in commit
      ec758f98
      
       to overcome linker issues when linking
      huge linux kernels, e.g. with many modules linked in.
      
      But in the kernel module loader there is no support yet for the new relocation
      types, which is why modules built with -mlong-calls can't be loaded.
      Furthermore, for modules long calls are not really necessary, since we already
      use stub sections which resolve long distance calls.
      
      So, let's just disable this compiler option when compiling kernel modules.
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      cf71130d
    • Will Deacon's avatar
      parisc: uaccess: fix compiler warnings caused by __put_user casting · 0f28b628
      Will Deacon authored
      
      
      When targetting 32-bit processors, __put_user emits a pair of stw
      instructions for the 8-byte case. If the type of __val is a pointer, the
      marshalling code casts it to the wider integer type of u64, resulting
      in the following compiler warnings:
      
        kernel/signal.c: In function 'copy_siginfo_to_user':
        kernel/signal.c:2752:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
        kernel/signal.c:2752:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
        [...]
      
      This patch fixes the warnings by removing the marshalling code and using
      the correct output modifiers in the __put_{user,kernel}_asm64 macros
      so that GCC will allocate the right registers without the need to
      extract the two words explicitly.
      
      Cc: Helge Deller <deller@gmx.de>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      0f28b628
    • John David Anglin's avatar
      parisc: Change kunmap macro to static inline function · 87be2f88
      John David Anglin authored
      
      
      Change kunmap macro to static inline function to fix build error
      compiling drivers/base/dma-buf.c.
      
      Without the change, the following error can occur:
      
         CC      drivers/base/dma-buf.o
      drivers/base/dma-buf.c: In function 'dma_buf_kunmap':
      drivers/base/dma-buf.c:427:46:
      error: macro "kunmap" passed 3 arguments, but takes just 1
      
      I believe parisc is the only arch to implement kunmap using a macro.
      Signed-off-by: default avatarJohn David Anglin <dave.anglin@bell.net>
      Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
      Cc: Helge Deller <deller@gmx.de>
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      87be2f88
    • John David Anglin's avatar
      parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds. · ca0ad83d
      John David Anglin authored
      
      
      The Debian experimental linux source package (3.8.5-1) build fails
      with the following errors:
      ...
      MODPOST 2016 modules
      ERROR: "__ucmpdi2" [fs/btrfs/btrfs.ko] undefined!
      ERROR: "__ucmpdi2" [drivers/md/dm-verity.ko] undefined!
      
      The attached patch resolves this problem.  It is based on the s390
      implementation of ucmpdi2.c.
      Signed-off-by: default avatarJohn David Anglin <dave.anglin@bell.net>
      Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      ca0ad83d
  6. 24 Apr, 2013 6 commits
  7. 22 Apr, 2013 4 commits
  8. 21 Apr, 2013 4 commits
    • Linus Torvalds's avatar
      Linux 3.9-rc8 · 60d509fa
      Linus Torvalds authored
      60d509fa
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 31259294
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "Misc fixes"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        perf/x86: Fix offcore_rsp valid mask for SNB/IVB
        perf: Treat attr.config as u64 in perf_swevent_init()
      31259294
    • Linus Torvalds's avatar
      Merge branch 'vm_ioremap_memory-examples' · 12c71c4b
      Linus Torvalds authored
      I'm going to do an -rc8, so I'm just going to do this rather than delay
      it any further. They are arguably stable material anyway.
      
      * vm_ioremap_memory-examples:
        mtdchar: remove no-longer-used vma helpers
        vm: convert snd_pcm_lib_mmap_iomem() to vm_iomap_memory() helper
        vm: convert fb_mmap to vm_iomap_memory() helper
        vm: convert mtdchar mmap to vm_iomap_memory() helper
        vm: convert HPET mmap to vm_iomap_memory() helper
      12c71c4b
    • Paul E. McKenney's avatar
      events: Protect access via task_subsys_state_check() · c79aa0d9
      Paul E. McKenney authored
      
      
      The following RCU splat indicates lack of RCU protection:
      
      [  953.267649] ===============================
      [  953.267652] [ INFO: suspicious RCU usage. ]
      [  953.267657] 3.9.0-0.rc6.git2.4.fc19.ppc64p7 #1 Not tainted
      [  953.267661] -------------------------------
      [  953.267664] include/linux/cgroup.h:534 suspicious rcu_dereference_check() usage!
      [  953.267669]
      [  953.267669] other info that might help us debug this:
      [  953.267669]
      [  953.267675]
      [  953.267675] rcu_scheduler_active = 1, debug_locks = 0
      [  953.267680] 1 lock held by glxgears/1289:
      [  953.267683]  #0:  (&sig->cred_guard_mutex){+.+.+.}, at: [<c00000000027f884>] .prepare_bprm_creds+0x34/0xa0
      [  953.267700]
      [  953.267700] stack backtrace:
      [  953.267704] Call Trace:
      [  953.267709] [c0000001f0d1b6e0] [c000000000016e30] .show_stack+0x130/0x200 (unreliable)
      [  953.267717] [c0000001f0d1b7b0] [c0000000001267f8] .lockdep_rcu_suspicious+0x138/0x180
      [  953.267724] [c0000001f0d1b840] [c0000000001d43a4] .perf_event_comm+0x4c4/0x690
      [  953.267731] [c0000001f0d1b950] [c00000000027f6e4] .set_task_comm+0x84/0x1f0
      [  953.267737] [c0000001f0d1b9f0] [c000000000280414] .setup_new_exec+0x94/0x220
      [  953.267744] [c0000001f0d1ba70] [c0000000002f665c] .load_elf_binary+0x58c/0x19b0
      ...
      
      This commit therefore adds the required RCU read-side critical
      section to perf_event_comm().
      Reported-by: default avatarAdam Jackson <ajax@redhat.com>
      Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
      Cc: a.p.zijlstra@chello.nl
      Cc: paulus@samba.org
      Cc: acme@ghostprotocols.net
      Link: http://lkml.kernel.org/r/20130419190124.GA8638@linux.vnet.ibm.com
      
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      Tested-by: default avatarGustavo Luiz Duarte <gusld@br.ibm.com>
      c79aa0d9
  9. 20 Apr, 2013 5 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 830ac852
      Linus Torvalds authored
      Pull kdump fixes from Peter Anvin:
       "The kexec/kdump people have found several problems with the support
        for loading over 4 GiB that was introduced in this merge cycle.  This
        is partly due to a number of design problems inherent in the way the
        various pieces of kdump fit together (it is pretty horrifically manual
        in many places.)
      
        After a *lot* of iterations this is the patchset that was agreed upon,
        but of course it is now very late in the cycle.  However, because it
        changes both the syntax and semantics of the crashkernel option, it
        would be desirable to avoid a stable release with the broken
        interfaces."
      
      I'm not happy with the timing, since originally the plan was to release
      the final 3.9 tomorrow.  But apparently I'm doing an -rc8 instead...
      
      * 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        kexec: use Crash kernel for Crash kernel low
        x86, kdump: Change crashkernel_high/low= to crashkernel=,high/low
        x86, kdump: Retore crashkernel= to allocate under 896M
        x86, kdump: Set crashkernel_low automatically
      830ac852
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · db93f8b4
      Linus Torvalds authored
      Pull x86 fixes from Peter Anvin:
       "Three groups of fixes:
      
         1. Make sure we don't execute the early microcode patching if family
            < 6, since it would touch MSRs which don't exist on those
            families, causing crashes.
      
         2. The Xen partial emulation of HyperV can be dealt with more
            gracefully than just disabling the driver.
      
         3. More EFI variable space magic.  In particular, variables hidden
            from runtime code need to be taken into account too."
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, microcode: Verify the family before dispatching microcode patching
        x86, hyperv: Handle Xen emulation of Hyper-V more gracefully
        x86,efi: Implement efi_no_storage_paranoia parameter
        efi: Export efi_query_variable_store() for efivars.ko
        x86/Kconfig: Make EFI select UCS2_STRING
        efi: Distinguish between "remaining space" and actually used space
        efi: Pass boot services variable info to runtime code
        Move utf16 functions to kernel core and rename
        x86,efi: Check max_size only if it is non-zero.
        x86, efivars: firmware bug workarounds should be in platform code
      db93f8b4
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm · 8c3a13c8
      Linus Torvalds authored
      Pull ARM fixes from Russell King:
       "A set of fixes from various people - Will Deacon gets a prize for
        removing code this time around.  The biggest fix in this lot is
        sorting out the ARM740T mess.  The rest are relatively small fixes."
      
      * 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
        ARM: 7699/1: sched_clock: Add more notrace to prevent recursion
        ARM: 7698/1: perf: fix group validation when using enable_on_exec
        ARM: 7697/1: hw_breakpoint: do not use __cpuinitdata for dbg_cpu_pm_nb
        ARM: 7696/1: Fix kexec by setting outer_cache.inv_all for Feroceon
        ARM: 7694/1: ARM, TCM: initialize TCM in paging_init(), instead of setup_arch()
        ARM: 7692/1: iop3xx: move IOP3XX_PERIPHERAL_VIRT_BASE
        ARM: modules: don't export cpu_set_pte_ext when !MMU
        ARM: mm: remove broken condition check for v4 flushing
        ARM: mm: fix numerous hideous errors in proc-arm740.S
        ARM: cache: remove ARMv3 support code
        ARM: tlbflush: remove ARMv3 support
      8c3a13c8
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 851b3f32
      Linus Torvalds authored
      Pull sparc fixes from David Miller:
      
       1) Fix race in sparc64 TLB shootdowns, we have to synchronize with the
          sibling cpus completing if we are passing them a reference via
          pointer to a data structure.
      
       2) Fix cleaning of bitmaps in sparc32, from Akinobu Mita.
      
       3) Fix various sparc header mistakes, some of which resulted in
          userland build breakage.  From Sam Ravnborg.
      
       4) Kill ghost declarations and defines missed when several bits of code
          got deleted recently.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        sparc64: Fix race in TLB batch processing.
        sparc: use asm-generic version of types.h
        bbc_i2c: fix section mismatch warning
        sparc: use generic headers
        sparc:cleanup unused code in smp_32.h
        sparc/iommu: fix typo s/265KB/256KB/
        sparc/srmmu: clear trailing edge of bitmap properly
        sparc:remove unused declaration smp_boot_cpus()
      851b3f32
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · c437d888
      Linus Torvalds authored
      Pull networking updates from David Miller:
      
       1) ax88796 does 64-bit divides which causes link errors on ARM, fix
          from Arnd Bergmann.
      
       2) Once an improper offload setting is detected on an SKB we don't rate
          limit the log message so we can very easily live lock.  From Ben
          Greear.
      
       3) Openvswitch cannot report vport configuration changes reliably
          because it didn't preallocate the netlink notification message
          before changing state.  From Jesse Gross.
      
       4) The effective UID/GID SCM credentials fix, from Linus.
      
       5) When a user explicitly asks for wireless authentication, cfg80211
          isn't told about the AP detachment leaving inconsistent state.  Fix
          from Johannes Berg.
      
       6) Fix self-MAC checks in batman-adv on multi-mesh nodes, from Antonio
          Quartulli.
      
       7) Revert build_skb() change sin IGB driver, can result in memory
          corruption.  From Alexander Duyck.
      
       8) Fix setting VLANs on virtual functions in IXGBE, from Greg Rose.
      
       9) Fix TSO races in qlcnic driver, from Sritej Velaga.
      
      10) In bnx2x the kernel driver and UNDI firmware can try to program the
          chip at the same time, resulting in corruption.  Add proper
          synchronization.  From Dmitry Kravkov.
      
      11) Fix corruption of status block in firmware ram in bxn2x, from Ariel
          Elior.
      
      12) Fix load balancing hash regression of bonding driver in forwarding
          configurations, from Eric Dumazet.
      
      13) Fix TS ECR regression in TCP by calling tcp_replace_ts_recent() in
          all the right spots, from Eric Dumazet.
      
      14) Fix several bonding bugs having to do with address manintainence,
          including not removing address when configuration operations
          encounter errors, missed locking on the address lists, missing
          refcounting on VLAN objects, etc.  All from Nikolay Aleksandrov.
      
      15) Add workarounds for firmware bugs in LTE qmi_wwan devices, wherein
          the devices fail to add a proper ethernet header while on LTE
          networks but otherwise properly do so on 2G and 3G ones.  From Bjørn
          Mork.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits)
        net: fix incorrect credentials passing
        net: rate-limit warn-bad-offload splats.
        net: ax88796: avoid 64 bit arithmetic
        qlge: Update version to 1.00.00.32.
        qlge: Fix ethtool autoneg advertising.
        qlge: Fix receive path to drop error frames
        net: qmi_wwan: prevent duplicate mac address on link (firmware bug workaround)
        net: qmi_wwan: fixup destination address (firmware bug workaround)
        net: qmi_wwan: fixup missing ethernet header (firmware bug workaround)
        bonding: in bond_mc_swap() bond's mc addr list is walked without lock
        bonding: disable netpoll on enslave failure
        bonding: primary_slave & curr_active_slave are not cleaned on enslave failure
        bonding: vlans don't get deleted on enslave failure
        bonding: mc addresses don't get deleted on enslave failure
        pkt_sched: fix error return code in fw_change_attrs()
        irda: small read past the end of array in debug code
        tcp: call tcp_replace_ts_recent() from tcp_ack()
        netfilter: xt_rpfilter: skip locally generated broadcast/multicast, too
        netfilter: ipset: bitmap:ip,mac: fix listing with timeout
        bonding: fix l23 and l34 load balancing in forwarding path
        ...
      c437d888