1. 24 Mar, 2014 5 commits
    • David S. Miller's avatar
      Merge branch 'davinci_emac' · 866b7cdf
      David S. Miller authored
      Christian Riesch says:
      
      ====================
      net: davinci_emac: Fix interrupt requests and error handling
      
      since commit 6892b41d (Linux 3.11) the
      davinci_emac driver is broken. After doing ifconfig down, ifconfig up,
      requesting the interrupts for the driver fails. The interface remains dead
      until the board is rebooted.
      
      The first patch in this patchset reverts commit
      6892b41d partially and makes the driver
      useable again.
      
      During the work on the first patch, a number of bugs in the error handling
      of the driver's ndo_open code were found. The second patch fixes these bugs.
      
      I believe the first patch meets the rules for stable kernels, I therefore added
      the stable tag to this patch. The second patch is just cleanup, the code
      that is fixed by this patch is only executed in case of an error.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      866b7cdf
    • Christian Riesch's avatar
      net: davinci_emac: Fix rollback of emac_dev_open() · cd11cf50
      Christian Riesch authored
      If an error occurs during the initialization in emac_dev_open() (the
      driver's ndo_open function), interrupts, DMA descriptors etc. must be freed.
      The current rollback code is buggy in several ways.
      
        1) Freeing the interrupts. The current code will not free all interrupts
           that were requested by the driver. Furthermore,  the code tries to do a
           platform_get_resource(priv->pdev, IORESOURCE_IRQ, -1) in its last
           iteration.
      
           This patch fixes these bugs.
      
        2) Wrong order of err: and rollback: labels. If the setup of the PHY in
           the code fails, the interrupts that have been requested before are
           not freed:
      
              request irq
                      if requesting irqs fails, goto rollback
              setup phy
                      if phy setup fails, goto err
              return 0
      
           rollback:
              free irqs
           err:
      
           This patch brings the code into the correct order.
      
        3) The code calls napi_enable() and emac_int_enable(), but does not
           undo both in case of an error.
      
           This patch adds calls of emac_int_disable() and napi_disable() to the
           rollback code.
      
        4) RX DMA descriptors are not freed in case of an error: Right before
           requesting the irqs, the function creates DMA descriptors for the
           RX channel. These RX descriptors are never freed when we jump to either
           rollback or err.
      
           This patch adds code for freeing the DMA descriptors in the case of
           an initialization error. This required a modification of
           cpdma_ctrl_stop() in davinci_cpdma.c: We must be able to call this
           function to free the DMA descriptors while the DMA channels are
           in IDLE state (before cpdma_ctlr_start() was called).
      
      Tested on a custom board with the Texas Instruments AM1808.
      Signed-off-by: default avatarChristian Riesch <christian.riesch@omicron.at>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cd11cf50
    • Christian Riesch's avatar
      net: davinci_emac: Replace devm_request_irq with request_irq · 33b7107f
      Christian Riesch authored
      In commit 6892b41d
      
      Author: Lad, Prabhakar <prabhakar.csengg@gmail.com>
      Date:   Tue Jun 25 21:24:51 2013 +0530
      net: davinci: emac: Convert to devm_* api
      
      the call of request_irq is replaced by devm_request_irq and the call
      of free_irq is removed. But since interrupts are requested in
      emac_dev_open, doing ifconfig up/down on the board requests the
      interrupts again each time, causing devm_request_irq to fail. The
      interface is dead until the device is rebooted.
      
      This patch reverts said commit partially: It changes the driver back
      to use request_irq instead of devm_request_irq, puts free_irq back in
      place, but keeps the remaining changes of the original patch.
      Reported-by: default avatarJon Ringle <jon@ringle.org>
      Signed-off-by: default avatarChristian Riesch <christian.riesch@omicron.at>
      Cc: Lad, Prabhakar <prabhakar.csengg@gmail.com>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      33b7107f
    • Li RongQing's avatar
      netpoll: fix the skb check in pkt_is_ns · c27f0872
      Li RongQing authored
      Neighbor Solicitation is ipv6 protocol, so we should check
      skb->protocol with ETH_P_IPV6
      Signed-off-by: default avatarLi RongQing <roy.qing.li@gmail.com>
      Cc: WANG Cong <amwang@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c27f0872
    • Nishanth Menon's avatar
      net: micrel : ks8851-ml: add vdd-supply support · ebf4ad95
      Nishanth Menon authored
      Few platforms use external regulator to keep the ethernet MAC supplied.
      So, request and enable the regulator for driver functionality.
      
      Fixes: 66fda75f (regulator: core: Replace direct ops->disable usage)
      Reported-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      Suggested-by: default avatarMarkus Pargmann <mpa@pengutronix.de>
      Signed-off-by: default avatarNishanth Menon <nm@ti.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ebf4ad95
  2. 20 Mar, 2014 7 commits
  3. 19 Mar, 2014 1 commit
  4. 18 Mar, 2014 11 commits
  5. 17 Mar, 2014 1 commit
  6. 15 Mar, 2014 6 commits
  7. 14 Mar, 2014 5 commits
    • John W. Linville's avatar
      Merge branch 'master' of... · 8c35743f
      John W. Linville authored
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
      8c35743f
    • Daniel J Blueman's avatar
      x86/amd/numa: Fix northbridge quirk to assign correct NUMA node · 847d7970
      Daniel J Blueman authored
      For systems with multiple servers and routed fabric, all
      northbridges get assigned to the first server. Fix this by also
      using the node reported from the PCI bus. For single-fabric
      systems, the northbriges are on PCI bus 0 by definition, which
      are on NUMA node 0 by definition, so this is invarient on most
      systems.
      
      Tested on fam10h and fam15h single and multi-fabric systems and
      candidate for stable.
      Signed-off-by: default avatarDaniel J Blueman <daniel@numascale.com>
      Acked-by: default avatarSteffen Persvold <sp@numascale.com>
      Acked-by: default avatarBorislav Petkov <bp@suse.de>
      Cc: <stable@vger.kernel.org>
      Link: http://lkml.kernel.org/r/1394710981-3596-1-git-send-email-daniel@numascale.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      847d7970
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · c60f7d5a
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Pretty minor set of fixes for radeon, ttm and vmwgfx.  The ttm ones
        are a regression and an oops seen on server chipsets"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/vmwgfx: Fix a surface reference corner-case in legacy emulation mode
        drm/radeon/cik: properly set compute ring status on disable
        drm/radeon/cik: stop the sdma engines in the enable() function
        drm/radeon/cik: properly set sdma ring status on disable
        drm/radeon: fix runpm disabling on non-PX harder
        drm/ttm: don't oops if no invalidate_caches()
        drm/ttm: Work around performance regression with VM_PFNMAP
      c60f7d5a
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · c14c06b7
      Linus Torvalds authored
      Pull i2c Kconfig fix from Wolfram Sang.
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: Remove usage of orphaned symbol OF_I2C
      c14c06b7
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 53611c0c
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       "I know this is a bit more than you want to see, and I've told the
        wireless folks under no uncertain terms that they must severely scale
        back the extent of the fixes they are submitting this late in the
        game.
      
        Anyways:
      
         1) vmxnet3's netpoll doesn't perform the equivalent of an ISR, which
            is the correct implementation, like it should.  Instead it does
            something like a NAPI poll operation.  This leads to crashes.
      
            From Neil Horman and Arnd Bergmann.
      
         2) Segmentation of SKBs requires proper socket orphaning of the
            fragments, otherwise we might access stale state released by the
            release callbacks.
      
            This is a 5 patch fix, but the initial patches are giving
            variables and such significantly clearer names such that the
            actual fix itself at the end looks trivial.
      
            From Michael S.  Tsirkin.
      
         3) TCP control block release can deadlock if invoked from a timer on
            an already "owned" socket.  Fix from Eric Dumazet.
      
         4) In the bridge multicast code, we must validate that the
            destination address of general queries is the link local all-nodes
            multicast address.  From Linus Lüssing.
      
         5) The x86 BPF JIT support for negative offsets puts the parameter
            for the helper function call in the wrong register.  Fix from
            Alexei Starovoitov.
      
         6) The descriptor type used for RTL_GIGA_MAC_VER_17 chips in the
            r8169 driver is incorrect.  Fix from Hayes Wang.
      
         7) The xen-netback driver tests skb_shinfo(skb)->gso_type bits to see
            if a packet is a GSO frame, but that's not the correct test.  It
            should use skb_is_gso(skb) instead.  Fix from Wei Liu.
      
         8) Negative msg->msg_namelen values should generate an error, from
            Matthew Leach.
      
         9) at86rf230 can deadlock because it takes the same lock from it's
            ISR and it's hard_start_xmit method, without disabling interrupts
            in the latter.  Fix from Alexander Aring.
      
        10) The FEC driver's restart doesn't perform operations in the correct
            order, so promiscuous settings can get lost.  Fix from Stefan
            Wahren.
      
        11) Fix SKB leak in SCTP cookie handling, from Daniel Borkmann.
      
        12) Reference count and memory leak fixes in TIPC from Ying Xue and
            Erik Hugne.
      
        13) Forced eviction in inet_frag_evictor() must strictly make sure all
            frags are deleted, otherwise module unload (f.e.  6lowpan) can
            crash.  Fix from Florian Westphal.
      
        14) Remove assumptions in AF_UNIX's use of csum_partial() (which it
            uses as a hash function), which breaks on PowerPC.  From Anton
            Blanchard.
      
            The main gist of the issue is that csum_partial() is defined only
            as a value that, once folded (f.e.  via csum_fold()) produces a
            correct 16-bit checksum.  It is legitimate, therefore, for
            csum_partial() to produce two different 32-bit values over the
            same data if their respective alignments are different.
      
        15) Fix endiannes bug in MAC address handling of ibmveth driver, also
            from Anton Blanchard.
      
        16) Error checks for ipv6 exthdrs offload registration are reversed,
            from Anton Nayshtut.
      
        17) Externally triggered ipv6 addrconf routes should count against the
            garbage collection threshold.  Fix from Sabrina Dubroca.
      
        18) The PCI shutdown handler added to the bnx2 driver can wedge the
            chip if it was not brought up earlier already, which in particular
            causes the firmware to shut down the PHY.  Fix from Michael Chan.
      
        19) Adjust the sanity WARN_ON_ONCE() in qdisc_list_add() because as
            currently coded it can and does trigger in legitimate situations.
            From Eric Dumazet.
      
        20) BNA driver fails to build on ARM because of a too large udelay()
            call, fix from Ben Hutchings.
      
        21) Fair-Queue qdisc holds locks during GFP_KERNEL allocations, fix
            from Eric Dumazet.
      
        22) The vlan passthrough ops added in the previous release causes a
            regression in source MAC address setting of outgoing headers in
            some circumstances.  Fix from Peter Boström"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (70 commits)
        ipv6: Avoid unnecessary temporary addresses being generated
        eth: fec: Fix lost promiscuous mode after reconnecting cable
        bonding: set correct vlan id for alb xmit path
        at86rf230: fix lockdep splats
        net/mlx4_en: Deregister multicast vxlan steering rules when going down
        vmxnet3: fix building without CONFIG_PCI_MSI
        MAINTAINERS: add networking selftests to NETWORKING
        net: socket: error on a negative msg_namelen
        MAINTAINERS: Add tools/net to NETWORKING [GENERAL]
        packet: doc: Spelling s/than/that/
        net/mlx4_core: Load the IB driver when the device supports IBoE
        net/mlx4_en: Handle vxlan steering rules for mac address changes
        net/mlx4_core: Fix wrong dump of the vxlan offloads device capability
        xen-netback: use skb_is_gso in xenvif_start_xmit
        r8169: fix the incorrect tx descriptor version
        tools/net/Makefile: Define PACKAGE to fix build problems
        x86: bpf_jit: support negative offsets
        bridge: multicast: enable snooping on general queries only
        bridge: multicast: add sanity check for general query destination
        tcp: tcp_release_cb() should release socket ownership
        ...
      53611c0c
  8. 13 Mar, 2014 4 commits