1. 02 8月, 2014 1 次提交
  2. 01 8月, 2014 4 次提交
  3. 31 7月, 2014 18 次提交
  4. 30 7月, 2014 17 次提交
    • L
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · d8772157
      Linus Torvalds 提交于
      Pull KVM fix from Paolo Bonzini:
       "Fix a bug which allows KVM guests to bring down the entire system on
        some 64K enabled ARM64 hosts"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        kvm: arm64: vgic: fix hyp panic with 64k pages on juno platform
      d8772157
    • L
      Revert "cdc_subset: deal with a device that needs reset for timeout" · 1d8fcba1
      Linus Torvalds 提交于
      This reverts commit 20fbe3ae.
      
      As reported by Stephen Rothwell, it causes compile failures in certain
      configurations:
      
        drivers/net/usb/cdc_subset.c:360:15: error: 'dummy_prereset' undeclared here (not in a function)
          .pre_reset = dummy_prereset,
                       ^
        drivers/net/usb/cdc_subset.c:361:16: error: 'dummy_postreset' undeclared here (not in a function)
          .post_reset = dummy_postreset,
                        ^
      Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
      Acked-by: NDavid Miller <davem@davemloft.net>
      Cc: Oliver Neukum <oneukum@suse.de>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      1d8fcba1
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · b527caee
      Linus Torvalds 提交于
      Pull networking fixes from David Miller:
      
       1) Make fragmentation IDs less predictable, from Eric Dumazet.
      
       2) TSO tunneling can crash in bnx2x driver, fix from Dmitry Kravkov.
      
       3) Don't allow NULL msg->msg_name just because msg->msg_namelen is
          non-zero, from Andrey Ryabinin.
      
       4) ndm->ndm_type set using wrong macros, from Jun Zhao.
      
       5) cdc-ether devices can come up with entries in their address filter,
          so explicitly clear the filter after the device initializes.  From
          Oliver Neukum.
      
       6) Forgotten refcount bump in xfrm_lookup(), from Steffen Klassert.
      
       7) Short packets not padded properly, exposing random data, in bcmgenet
          driver.  Fix from Florian Fainelli.
      
       8) xgbe_probe() doesn't return an error code, but rather zero, when
          netif_set_real_num_tx_queues() fails.  Fix from Wei Yongjun.
      
       9) USB speed not probed properly in r8152 driver, from Hayes Wang.
      
      10) Transmit logic choosing the outgoing port in the sunvnet driver
          needs to consider a) is the port actually up and b) whether it is a
          switch port.  Fix from David L Stevens.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
        net: phy: re-apply PHY fixups during phy_register_device
        cdc-ether: clean packet filter upon probe
        cdc_subset: deal with a device that needs reset for timeout
        net: sendmsg: fix NULL pointer dereference
        isdn/bas_gigaset: fix a leak on failure path in gigaset_probe()
        ip: make IP identifiers less predictable
        neighbour : fix ndm_type type error issue
        sunvnet: only use connected ports when sending
        can: c_can_platform: Fix raminit, use devm_ioremap() instead of devm_ioremap_resource()
        bnx2x: fix crash during TSO tunneling
        r8152: fix the checking of the usb speed
        net: phy: Ensure the MDIO bus module is held
        net: phy: Set the driver when registering an MDIO bus device
        bnx2x: fix set_setting for some PHYs
        hyperv: Fix error return code in netvsc_init_buf()
        amd-xgbe: Fix error return code in xgbe_probe()
        ath9k: fix aggregation session lockup
        net: bcmgenet: correctly pad short packets
        net: sctp: inherit auth_capable on INIT collisions
        mac80211: fix crash on getting sta info with uninitialized rate control
        ...
      b527caee
    • D
      x86/xen: safely map and unmap grant frames when in atomic context · b7dd0e35
      David Vrabel 提交于
      arch_gnttab_map_frames() and arch_gnttab_unmap_frames() are called in
      atomic context but were calling alloc_vm_area() which might sleep.
      
      Also, if a driver attempts to allocate a grant ref from an interrupt
      and the table needs expanding, then the CPU may already by in lazy MMU
      mode and apply_to_page_range() will BUG when it tries to re-enable
      lazy MMU mode.
      
      These two functions are only used in PV guests.
      
      Introduce arch_gnttab_init() to allocates the virtual address space in
      advance.
      
      Avoid the use of apply_to_page_range() by using saving and using the
      array of PTE addresses from the alloc_vm_area() call (which ensures
      that the required page tables are pre-allocated).
      Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com>
      Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      b7dd0e35
    • W
      kvm: arm64: vgic: fix hyp panic with 64k pages on juno platform · 63afbe7a
      Will Deacon 提交于
      If the physical address of GICV isn't page-aligned, then we end up
      creating a stage-2 mapping of the page containing it, which causes us to
      map neighbouring memory locations directly into the guest.
      
      As an example, consider a platform with GICV at physical 0x2c02f000
      running a 64k-page host kernel. If qemu maps this into the guest at
      0x80010000, then guest physical addresses 0x80010000 - 0x8001efff will
      map host physical region 0x2c020000 - 0x2c02efff. Accesses to these
      physical regions may cause UNPREDICTABLE behaviour, for example, on the
      Juno platform this will cause an SError exception to EL3, which brings
      down the entire physical CPU resulting in RCU stalls / HYP panics / host
      crashing / wasted weeks of debugging.
      
      SBSA recommends that systems alias the 4k GICV across the bounding 64k
      region, in which case GICV physical could be described as 0x2c020000 in
      the above scenario.
      
      This patch fixes the problem by failing the vgic probe if the physical
      base address or the size of GICV aren't page-aligned. Note that this
      generated a warning in dmesg about freeing enabled IRQs, so I had to
      move the IRQ enabling later in the probe.
      
      Cc: Christoffer Dall <christoffer.dall@linaro.org>
      Cc: Marc Zyngier <marc.zyngier@arm.com>
      Cc: Gleb Natapov <gleb@kernel.org>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Joel Schopp <joel.schopp@amd.com>
      Cc: Don Dutile <ddutile@redhat.com>
      Acked-by: NPeter Maydell <peter.maydell@linaro.org>
      Acked-by: NJoel Schopp <joel.schopp@amd.com>
      Acked-by: NMarc Zyngier <marc.zyngier@arm.com>
      Signed-off-by: NWill Deacon <will.deacon@arm.com>
      Signed-off-by: NChristoffer Dall <christoffer.dall@linaro.org>
      63afbe7a
    • L
      arm: Add devicetree fixup machine function · 5a12a597
      Laura Abbott 提交于
      Commit 1c2f87c2
      (ARM: 8025/1: Get rid of meminfo) dropped the upper bound on
      the number of memory banks that can be added as there was no
      technical need in the kernel. It turns out though, some bootloaders
      (specifically the arndale-octa exynos boards) may pass invalid memory
      information and rely on the kernel to not parse this data. This is a
      bug in the bootloader but we still need to work around this.
      Work around this by introducing a dt_fixup function. This function
      gets called before the flattened devicetree is scanned for memory
      and the like. In this fixup function for exynos, limit the maximum
      number of memory regions in the devicetree.
      Signed-off-by: NLaura Abbott <lauraa@codeaurora.org>
      Tested-by: NAndreas Färber <afaerber@suse.de>
      [glikely: Added a comment and fixed up function name]
      Signed-off-by: NGrant Likely <grant.likely@linaro.org>
      5a12a597
    • L
      of: Add memory limiting function for flattened devicetrees · 704033ce
      Laura Abbott 提交于
      Buggy bootloaders may pass bogus memory entries in the devicetree.
      Add of_fdt_limit_memory to add an upper bound on the number of
      entries that can be present in the devicetree.
      Signed-off-by: NLaura Abbott <lauraa@codeaurora.org>
      Tested-by: NAndreas Färber <afaerber@suse.de>
      Signed-off-by: NGrant Likely <grant.likely@linaro.org>
      704033ce
    • L
      of: Split early_init_dt_scan into two parts · 4972a74b
      Laura Abbott 提交于
      Currently, early_init_dt_scan validates the header, sets the
      boot params, and scans for chosen/memory all in one function.
      Split this up into two separate functions (validation/setting
      boot params in one, scanning in another) to allow for
      additional setup between boot params and scanning the memory.
      Signed-off-by: NLaura Abbott <lauraa@codeaurora.org>
      Tested-by: NAndreas Färber <afaerber@suse.de>
      [glikely: s/early_init_dt_scan_all/early_init_dt_scan_nodes/]
      Signed-off-by: NGrant Likely <grant.likely@linaro.org>
      4972a74b
    • R
      ACPI / PNP: Fix acpi_pnp_match() · b6328a07
      Rafael J. Wysocki 提交于
      The acpi_pnp_match() function is used for finding the ACPI device
      object that should be associated with the given PNP device.
      Unfortunately, the check used by that function is not strict enough
      and may cause success to be returned for a wrong ACPI device object.
      
      To fix that, use the observation that the pointer to the ACPI
      device object in question is already stored in the data field
      in struct pnp_dev, so acpi_pnp_match() can simply use that
      field to do its job.
      
      This problem was uncovered in 3.14 by commit 202317a5 (ACPI / scan:
      Add acpi_device objects for all device nodes in the namespace).
      
      Fixes: 202317a5 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
      Reported-and-tested-by: NVinson Lee <vlee@twopensource.com>
      Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      b6328a07
    • F
      net: phy: re-apply PHY fixups during phy_register_device · d92f5dec
      Florian Fainelli 提交于
      Commit 87aa9f9c ("net: phy: consolidate PHY reset in phy_init_hw()")
      moved the call to phy_scan_fixups() in phy_init_hw() after a software
      reset is performed.
      
      By the time phy_init_hw() is called in phy_device_register(), no driver
      has been bound to this PHY yet, so all the checks in phy_init_hw()
      against the PHY driver and the PHY driver's config_init function will
      return 0. We will therefore never call phy_scan_fixups() as we should.
      
      Fix this by calling phy_scan_fixups() and check for its return value to
      restore the intended functionality.
      
      This broke PHY drivers which do register an early PHY fixup callback to
      intercept the PHY probing and do things like changing the 32-bits unique
      PHY identifier when a pseudo-PHY address has been used, as well as
      board-specific PHY fixups that need to be applied during driver probe
      time.
      Reported-by: NHauke Merthens <hauke-m@hauke-m.de>
      Reported-by: NJonas Gorski <jogo@openwrt.org>
      Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d92f5dec
    • O
      cdc-ether: clean packet filter upon probe · c472ab68
      Oliver Neukum 提交于
      There are devices that don't do reset all the way. So the packet filter should
      be set to a sane initial value. Failure to do so leads to intermittent failures
      of DHCP on some systems under some conditions.
      Signed-off-by: NOliver Neukum <oneukum@suse.de>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c472ab68
    • O
      cdc_subset: deal with a device that needs reset for timeout · 20fbe3ae
      Oliver Neukum 提交于
      This device needs to be reset to recover from a timeout.
      Unfortunately this can be handled only at the level of
      the subdrivers.
      Signed-off-by: NOliver Neukum <oneukum@suse.de>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      20fbe3ae
    • A
      net: sendmsg: fix NULL pointer dereference · 40eea803
      Andrey Ryabinin 提交于
      Sasha's report:
      	> While fuzzing with trinity inside a KVM tools guest running the latest -next
      	> kernel with the KASAN patchset, I've stumbled on the following spew:
      	>
      	> [ 4448.949424] ==================================================================
      	> [ 4448.951737] AddressSanitizer: user-memory-access on address 0
      	> [ 4448.952988] Read of size 2 by thread T19638:
      	> [ 4448.954510] CPU: 28 PID: 19638 Comm: trinity-c76 Not tainted 3.16.0-rc4-next-20140711-sasha-00046-g07d3099-dirty #813
      	> [ 4448.956823]  ffff88046d86ca40 0000000000000000 ffff880082f37e78 ffff880082f37a40
      	> [ 4448.958233]  ffffffffb6e47068 ffff880082f37a68 ffff880082f37a58 ffffffffb242708d
      	> [ 4448.959552]  0000000000000000 ffff880082f37a88 ffffffffb24255b1 0000000000000000
      	> [ 4448.961266] Call Trace:
      	> [ 4448.963158] dump_stack (lib/dump_stack.c:52)
      	> [ 4448.964244] kasan_report_user_access (mm/kasan/report.c:184)
      	> [ 4448.965507] __asan_load2 (mm/kasan/kasan.c:352)
      	> [ 4448.966482] ? netlink_sendmsg (net/netlink/af_netlink.c:2339)
      	> [ 4448.967541] netlink_sendmsg (net/netlink/af_netlink.c:2339)
      	> [ 4448.968537] ? get_parent_ip (kernel/sched/core.c:2555)
      	> [ 4448.970103] sock_sendmsg (net/socket.c:654)
      	> [ 4448.971584] ? might_fault (mm/memory.c:3741)
      	> [ 4448.972526] ? might_fault (./arch/x86/include/asm/current.h:14 mm/memory.c:3740)
      	> [ 4448.973596] ? verify_iovec (net/core/iovec.c:64)
      	> [ 4448.974522] ___sys_sendmsg (net/socket.c:2096)
      	> [ 4448.975797] ? put_lock_stats.isra.13 (./arch/x86/include/asm/preempt.h:98 kernel/locking/lockdep.c:254)
      	> [ 4448.977030] ? lock_release_holdtime (kernel/locking/lockdep.c:273)
      	> [ 4448.978197] ? lock_release_non_nested (kernel/locking/lockdep.c:3434 (discriminator 1))
      	> [ 4448.979346] ? check_chain_key (kernel/locking/lockdep.c:2188)
      	> [ 4448.980535] __sys_sendmmsg (net/socket.c:2181)
      	> [ 4448.981592] ? trace_hardirqs_on_caller (kernel/locking/lockdep.c:2600)
      	> [ 4448.982773] ? trace_hardirqs_on (kernel/locking/lockdep.c:2607)
      	> [ 4448.984458] ? syscall_trace_enter (arch/x86/kernel/ptrace.c:1500 (discriminator 2))
      	> [ 4448.985621] ? trace_hardirqs_on_caller (kernel/locking/lockdep.c:2600)
      	> [ 4448.986754] SyS_sendmmsg (net/socket.c:2201)
      	> [ 4448.987708] tracesys (arch/x86/kernel/entry_64.S:542)
      	> [ 4448.988929] ==================================================================
      
      This reports means that we've come to netlink_sendmsg() with msg->msg_name == NULL and msg->msg_namelen > 0.
      
      After this report there was no usual "Unable to handle kernel NULL pointer dereference"
      and this gave me a clue that address 0 is mapped and contains valid socket address structure in it.
      
      This bug was introduced in f3d33426
      (net: rework recvmsg handler msg_name and msg_namelen logic).
      Commit message states that:
      	"Set msg->msg_name = NULL if user specified a NULL in msg_name but had a
      	 non-null msg_namelen in verify_iovec/verify_compat_iovec. This doesn't
      	 affect sendto as it would bail out earlier while trying to copy-in the
      	 address."
      But in fact this affects sendto when address 0 is mapped and contains
      socket address structure in it. In such case copy-in address will succeed,
      verify_iovec() function will successfully exit with msg->msg_namelen > 0
      and msg->msg_name == NULL.
      
      This patch fixes it by setting msg_namelen to 0 if msg_name == NULL.
      
      Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: <stable@vger.kernel.org>
      Reported-by: NSasha Levin <sasha.levin@oracle.com>
      Signed-off-by: NAndrey Ryabinin <a.ryabinin@samsung.com>
      Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      40eea803
    • A
      isdn/bas_gigaset: fix a leak on failure path in gigaset_probe() · 86b7987d
      Alexey Khoroshilov 提交于
      There is a lack of usb_put_dev(udev) on failure path in gigaset_probe().
      
      Found by Linux Driver Verification project (linuxtesting.org).
      Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
      Acked-by: NTilman Schmidt <tilman@imap.cc>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      86b7987d
    • L
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · c98158ed
      Linus Torvalds 提交于
      Pull ARM SoC fixes from Arnd Bergmann:
       "A nice small set of bug fixes for arm-soc:
      
         - two incorrect register addresses in DT files on shmobile and hisilicon
         - one revert for a regression on omap
         - one bug fix for a newly introduced pin controller binding
         - one regression fix for the memory controller on omap
         - one patch to avoid a harmless WARN_ON"
      
      * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        ARM: dts: Revert enabling of twl configuration for n900
        ARM: dts: fix L2 address in Hi3620
        ARM: OMAP2+: gpmc: fix gpmc_hwecc_bch_capable()
        pinctrl: dra: dt-bindings: Fix pull enable/disable
        ARM: shmobile: r8a7791: Fix SD2CKCR register address
        ARM: OMAP2+: l2c: squelch warning dump on power control setting
      c98158ed
    • D
      AFS: Correctly assemble the client UUID · 0ef13515
      David Howells 提交于
      Correctly assemble the client UUID by OR'ing in the flags rather than
      assigning them over the other components.
      Reported-by: NHimangi Saraogi <himangi774@gmail.com>
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      0ef13515
    • R
      mm: fix page_alloc.c kernel-doc warnings · 1aab4d77
      Randy Dunlap 提交于
      Fix kernel-doc warnings and function name in mm/page_alloc.c:
      
        Warning(..//mm/page_alloc.c:6074): No description found for parameter 'pfn'
        Warning(..//mm/page_alloc.c:6074): No description found for parameter 'mask'
        Warning(..//mm/page_alloc.c:6074): Excess function parameter 'start_bitidx' description in 'get_pfnblock_flags_mask'
        Warning(..//mm/page_alloc.c:6102): No description found for parameter 'pfn'
        Warning(..//mm/page_alloc.c:6102): No description found for parameter 'mask'
        Warning(..//mm/page_alloc.c:6102): Excess function parameter 'start_bitidx' description in 'set_pfnblock_flags_mask'
      Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
      Acked-by: NMel Gorman <mgorman@suse.de>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      1aab4d77