1. 12 11月, 2015 1 次提交
  2. 11 11月, 2015 18 次提交
  3. 10 11月, 2015 15 次提交
    • O
      pwm: sunxi: Fix whitespace issue · 5dcd7b42
      Olliver Schinagl 提交于
      This patch changes no code, it just fixes the whitespacing. Operators
      should be separated from operands by a single space.
      Signed-off-by: NOlliver Schinagl <oliver@schinagl.nl>
      Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
      5dcd7b42
    • O
      pwm: sysfs: Make use of the DEVICE_ATTR_[RW][WO] macro's · 65cdc691
      Olliver Schinagl 提交于
      For the npwm property the PWM sysfs interface already made use of the
      DEVICE_ATTR_RO macro. This patch expands this to the other sysfs
      properties so that the code base is concise and makes use of this
      helpful macro.
      
      This has the advantage of slightly reducing the code size, improving
      readability and no longer using magic values for permissions.
      Signed-off-by: NOlliver Schinagl <oliver@schinagl.nl>
      Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
      65cdc691
    • O
      pwm: sysfs: Remove unnecessary temporary variable · 0344d0d6
      Olliver Schinagl 提交于
      Use the result of pwm_is_enabled() directly instead of storing it in a
      temporary variable.
      Signed-off-by: NOlliver Schinagl <oliver@schinagl.nl>
      Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
      0344d0d6
    • T
      pwm: Return -ENODEV if no PWM lookup match is found · 655a0355
      Thierry Reding 提交于
      When looking up a PWM using the lookup table, assume that all entries
      will have been added already, so failure to find a match means that no
      corresponding entry has been registered.
      
      This fixes an issue where -EPROBE_DEFER would be returned if the PWM
      lookup table is empty. After this fix, -EPROBE_DEFER is reserved for
      situations where no provider has yet registered for a matching entry.
      Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
      655a0355
    • H
      pwm: sun4i: Add support for PWM controller on sun5i SoCs · f6649f7a
      Hans de Goede 提交于
      The PWM controller on sun5i SoCs is identical to the one found on sun7i
      SoCs. On the A13 package only one of the 2 pins is routed to the outside,
      so only advertise one PWM channel there.
      Signed-off-by: NHans de Goede <hdegoede@redhat.com>
      Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
      Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
      f6649f7a
    • J
      pwm: Set enable state properly on failed call to enable · d1cd2142
      Jonathan Richardson 提交于
      The pwm_enable() function didn't clear the enabled bit if a call to the
      driver's ->enable() callback returned an error. The result was that the
      state of the PWM core was wrong. Clearing the bit when enable returns
      an error ensures the state is properly set.
      Tested-by: NJonathan Richardson <jonathar@broadcom.com>
      Reviewed-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
      Signed-off-by: NJonathan Richardson <jonathar@broadcom.com>
      [thierry.reding@gmail.com: add missing kerneldoc for the lock]
      Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
      d1cd2142
    • J
      net: mvneta: Fix memory use after free. · 8c94ddbc
      Justin Maggard 提交于
      After changing an interface's MTU, then bringing the interface down and
      back up again, I immediately saw tons of kernel messages like below.
      The reason for this bad behavior is mvneta_rxq_drop_pkts(), which calls
      dma_unmap_single() on already-freed memory.  So we need to switch the
      order of those two operations.
      
      [  152.388518] BUG: Bad page state in process ifconfig  pfn:1b518
      [  152.388526] page:dff3dbc0 count:0 mapcount:0 mapping:  (null) index:0x0
      [  152.395178] flags: 0x200(arch_1)
      [  152.398441] page dumped because: PAGE_FLAGS_CHECK_AT_PREP flag set
      [  152.398446] bad because of flags:
      [  152.398450] flags: 0x200(arch_1)
      [  152.401716] Modules linked in:
      [  152.401728] CPU: 0 PID: 1453 Comm: ifconfig Tainted: P    B      O    4.1.12.armada.1 #1
      [  152.401733] Hardware name: Marvell Armada 370/XP (Device Tree)
      [  152.401749] [<c0015b1c>] (unwind_backtrace) from [<c0011d8c>] (show_stack+0x10/0x14)
      [  152.401762] [<c0011d8c>] (show_stack) from [<c06aa68c>] (dump_stack+0x74/0x90)
      [  152.401772] [<c06aa68c>] (dump_stack) from [<c0096c08>] (bad_page+0xc4/0x124)
      [  152.401783] [<c0096c08>] (bad_page) from [<c0099378>] (get_page_from_freelist+0x4e4/0x644)
      [  152.401794] [<c0099378>] (get_page_from_freelist) from [<c0099620>] (__alloc_pages_nodemask+0x148/0x784)
      [  152.401805] [<c0099620>] (__alloc_pages_nodemask) from [<c00ac658>] (kmalloc_order+0x10/0x20)
      [  152.401818] [<c00ac658>] (kmalloc_order) from [<c04c6f44>] (mvneta_rx_refill+0xc4/0xe8)
      [  152.401830] [<c04c6f44>] (mvneta_rx_refill) from [<c04c96c0>] (mvneta_setup_rxqs+0x298/0x39c)
      [  152.401842] [<c04c96c0>] (mvneta_setup_rxqs) from [<c04c9904>] (mvneta_open+0x3c/0x150)
      [  152.401853] [<c04c9904>] (mvneta_open) from [<c0597764>] (__dev_open+0xac/0x124)
      [  152.401864] [<c0597764>] (__dev_open) from [<c05979e4>] (__dev_change_flags+0x8c/0x148)
      [  152.401875] [<c05979e4>] (__dev_change_flags) from [<c0597ac0>] (dev_change_flags+0x18/0x48)
      [  152.401886] [<c0597ac0>] (dev_change_flags) from [<c060d308>] (devinet_ioctl+0x620/0x6d0)
      [  152.401897] [<c060d308>] (devinet_ioctl) from [<c057d810>] (sock_ioctl+0x64/0x288)
      [  152.401908] [<c057d810>] (sock_ioctl) from [<c00dcb7c>] (do_vfs_ioctl+0x78/0x608)
      [  152.401918] [<c00dcb7c>] (do_vfs_ioctl) from [<c00dd170>] (SyS_ioctl+0x64/0x74)
      [  152.401930] [<c00dd170>] (SyS_ioctl) from [<c000f3a0>] (ret_fast_syscall+0x0/0x3c)
      Signed-off-by: NJustin Maggard <jmaggard@netgear.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8c94ddbc
    • J
      drivers/scsi/cxgbi: fix build with EXTRA_CFLAGS · ce1fb041
      Jiri Slaby 提交于
      EXTRA_CFLAGS are intended to be used on the command line, not by Kbuild.
      In case of cxgbi drivers, use of EXTRA_CFLAGS results in a compilation
      failure:
      
        drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:24:21: fatal error: t4_regs.h: No such file or directory
      
      when building like:
      
      $ make drivers/scsi/cxgbi/ EXTRA_CFLAGS=-Wwhatever
      
      Use ccflags-y instead of EXTRA_CFLAGS.
      Signed-off-by: NJiri Slaby <jslaby@suse.cz>
      Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
      Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      ce1fb041
    • C
      dma: remove external references to dma_supported · 0e77acef
      Christoph Hellwig 提交于
      Signed-off-by: NChristoph Hellwig <hch@lst.de>
      Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Alan Stern <stern@rowland.harvard.edu>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      0e77acef
    • A
      remove abs64() · 79211c8e
      Andrew Morton 提交于
      Switch everything to the new and more capable implementation of abs().
      Mainly to give the new abs() a bit of a workout.
      
      Cc: Michal Nazarewicz <mina86@mina86.com>
      Cc: John Stultz <john.stultz@linaro.org>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      79211c8e
    • G
      drm/vc4: Add dependency on HAVE_DMA_ATTRS, and select DRM_GEM_CMA_HELPER · 2565df91
      Guenter Roeck 提交于
      Avoid the following build errors, seen with m68k:allmodconfig and other
      architectures which do not support HAVE_DMA_ATTRS.
      
      ERROR: "drm_gem_cma_create" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_prime_mmap" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_prime_get_sg_table" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_vm_ops" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_mmap" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_prime_vunmap" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_prime_import_sg_table" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_free_object" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_prime_vmap" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_dumb_map_offset" [drivers/gpu/drm/vc4/vc4.ko] undefined!
      ERROR: "drm_gem_cma_create" [drivers/gpu/drm/drm_kms_helper.ko] undefined!
      ERROR: "drm_gem_cma_describe" [drivers/gpu/drm/drm_kms_helper.ko] undefined!
      ERROR: "drm_gem_cma_free_object" [drivers/gpu/drm/drm_kms_helper.ko] undefined!
      Acked-by: NEric Anholt <eric@anholt.net>
      Fixes: c8b75bca ("drm/vc4: Add KMS support for Raspberry Pi.")
      Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
      Signed-off-by: NDave Airlie <airlied@redhat.com>
      2565df91
    • V
      macvtap: Resolve possible __might_sleep warning in macvtap_do_read() · a499a2e9
      Vlad Yasevich 提交于
      macvtap_do_read code calls macvtap_put_user while it might be set up
      to wait for the user.  This results in the following warning:
      
      Jun 23 16:25:26 galen kernel: ------------[ cut here ]------------
      Jun 23 16:25:26 galen kernel: WARNING: CPU: 0 PID: 30433 at kernel/sched/core.c:
      7286 __might_sleep+0x7f/0x90()
      Jun 23 16:25:26 galen kernel: do not call blocking ops when !TASK_RUNNING; state
      =1 set at [<ffffffff810f1c1f>] prepare_to_wait+0x2f/0x90
      Jun 23 16:25:26 galen kernel: CPU: 0 PID: 30433 Comm: cat Not tainted 4.1.0-rc6+
       #11
      Jun 23 16:25:26 galen kernel: Call Trace:
      Jun 23 16:25:26 galen kernel: [<ffffffff817f76ba>] dump_stack+0x4c/0x65
      Jun 23 16:25:26 galen kernel: [<ffffffff810a07ca>] warn_slowpath_common+0x8a/0xc
      0
      Jun 23 16:25:26 galen kernel: [<ffffffff810a0846>] warn_slowpath_fmt+0x46/0x50
      Jun 23 16:25:26 galen kernel: [<ffffffff810f1c1f>] ?  prepare_to_wait+0x2f/0x90
      Jun 23 16:25:26 galen kernel: [<ffffffff810f1c1f>] ?  prepare_to_wait+0x2f/0x90
      Jun 23 16:25:26 galen kernel: [<ffffffff810cdc1f>] __might_sleep+0x7f/0x90
      Jun 23 16:25:26 galen kernel: [<ffffffff811f8e15>] might_fault+0x55/0xb0
      Jun 23 16:25:26 galen kernel: [<ffffffff810fab9d>] ?  trace_hardirqs_on_caller+0x fd/0x1c0
      Jun 23 16:25:26 galen kernel: [<ffffffff813f639c>] copy_to_iter+0x7c/0x360
      Jun 23 16:25:26 galen kernel: [<ffffffffa052da86>] macvtap_do_read+0x256/0x3d0 [macvtap]
      Jun 23 16:25:26 galen kernel: [<ffffffff810f20e0>] ?  prepare_to_wait_event+0x110/0x110
      Jun 23 16:25:26 galen kernel: [<ffffffffa052dcab>] macvtap_read_iter+0x2b/0x50 [macvtap]
      Jun 23 16:25:26 galen kernel: [<ffffffff81247f2e>] __vfs_read+0xae/0xe0
      Jun 23 16:25:26 galen kernel: [<ffffffff81248526>] vfs_read+0x86/0x140
      Jun 23 16:25:26 galen kernel: [<ffffffff812493b9>] SyS_read+0x49/0xb0
      Jun 23 16:25:26 galen kernel: [<ffffffff8180182e>] system_call_fastpath+0x12/0x76
      Jun 23 16:25:26 galen kernel: ---[ end trace 22e33f67e70c0c2a ]---
      
      Make sure thet we call finish_wait() if we have the skb to process
      before trying to actually process it.
      Signed-off-by: NVladislav Yasevich <vyasevic@redhat.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a499a2e9
    • A
      mvneta: add FIXED_PHY dependency · 4bed5395
      Arnd Bergmann 提交于
      The fixed_phy infrastructure is done in a way that is optional,
      by providing 'static inline' helper functions doing nothing in
      include/linux/phy_fixed.h for all its APIs. However, three out
      of the four users (DSA, BCMGENET, and SYSTEMPORT) always
      'select FIXED_PHY', presumably because they need that.
      MVNETA is the fourth one, and if that is built-in but FIXED_PHY
      is configured as a loadable module, we get a link error:
      
      drivers/built-in.o: In function `mvneta_fixed_link_update':
      fpga-mgr.c:(.text+0x33ed80): undefined reference to `fixed_phy_update_state'
      
      Presumably this driver has the same dependency as the others,
      so this patch also uses 'select' to ensure that the fixed-phy
      support is built-in.
      Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      Fixes: 898b2970 ("mvneta: implement SGMII-based in-band link state signaling")
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4bed5395
    • R
      net: caif: check return value of alloc_netdev · cfb76d77
      Rasmus Villemoes 提交于
      I don't know if dev can actually be NULL here, but the test should be
      above alloc_netdev(), to avoid leaking the struct net_device in case
      dev is actually NULL. And of course the return value from alloc_netdev
      should be tested.
      Signed-off-by: NRasmus Villemoes <linux@rasmusvillemoes.dk>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      cfb76d77
    • G
      net: hisilicon: NET_VENDOR_HISILICON should depend on HAS_DMA · 3870502a
      Geert Uytterhoeven 提交于
      If NO_DMA=y:
      
          ERROR: "dma_set_mask" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
          ERROR: "dma_unmap_single" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
          ERROR: "dma_unmap_page" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
          ERROR: "dma_mapping_error" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
          ERROR: "dma_map_page" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
          ERROR: "dma_supported" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
          ERROR: "dma_map_single" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
          ERROR: "dma_set_mask" [drivers/net/ethernet/hisilicon/hns/hns_dsaf.ko] undefined!
          ERROR: "dma_supported" [drivers/net/ethernet/hisilicon/hns/hns_dsaf.ko] undefined!
          ERROR: "dma_unmap_single" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
          ERROR: "dma_unmap_page" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
          ERROR: "dma_mapping_error" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
          ERROR: "dma_map_page" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
          ERROR: "dma_map_single" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
          ERROR: "dma_alloc_coherent" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
          ERROR: "dma_mapping_error" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
          ERROR: "dma_map_single" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
          ERROR: "dma_unmap_single" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
          ERROR: "dma_free_coherent" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
          ERROR: "dma_alloc_coherent" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
          ERROR: "dma_mapping_error" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
          ERROR: "dma_map_single" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
          ERROR: "dma_unmap_single" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
          ERROR: "dma_free_coherent" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
      
      As this affects all of HNS_ENET, HNS_DSAF, HNS, HIX5HD2_GMAC, and
      HIP04_ETH, add a dependency on HAS_DMA to the main NET_VENDOR_HISILICON
      symbol to fix this.
      Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
      Acked-by: NArnd Bergmann <arnd@arndb.de>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      3870502a
  4. 09 11月, 2015 6 次提交