1. 27 1月, 2015 4 次提交
    • D
      Merge branch 'cls_bpf' · b6663ad7
      David S. Miller 提交于
      Daniel Borkmann says:
      
      ====================
      Two cls_bpf fixes
      
      Found them while doing a review on act_bpf and going over the
      cls_bpf code again. Will also address the first issue in act_bpf
      as it needs to be fixed there, too.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b6663ad7
    • D
      net: cls_bpf: fix auto generation of per list handles · 3f2ab135
      Daniel Borkmann 提交于
      When creating a bpf classifier in tc with priority collisions and
      invoking automatic unique handle assignment, cls_bpf_grab_new_handle()
      will return a wrong handle id which in fact is non-unique. Usually
      altering of specific filters is being addressed over major id, but
      in case of collisions we result in a filter chain, where handle ids
      address individual cls_bpf_progs inside the classifier.
      
      Issue is, in cls_bpf_grab_new_handle() we probe for head->hgen handle
      in cls_bpf_get() and in case we found a free handle, we're supposed
      to use exactly head->hgen. In case of insufficient numbers of handles,
      we bail out later as handle id 0 is not allowed.
      
      Fixes: 7d1d65cb ("net: sched: cls_bpf: add BPF-based classifier")
      Signed-off-by: NDaniel Borkmann <dborkman@redhat.com>
      Acked-by: NJiri Pirko <jiri@resnulli.us>
      Acked-by: NAlexei Starovoitov <ast@plumgrid.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      3f2ab135
    • D
      net: cls_bpf: fix size mismatch on filter preparation · 7913ecf6
      Daniel Borkmann 提交于
      In cls_bpf_modify_existing(), we read out the number of filter blocks,
      do some sanity checks, allocate a block on that size, and copy over the
      BPF instruction blob from user space, then pass everything through the
      classic BPF checker prior to installation of the classifier.
      
      We should reject mismatches here, there are 2 scenarios: the number of
      filter blocks could be smaller than the provided instruction blob, so
      we do a partial copy of the BPF program, and thus the instructions will
      either be rejected from the verifier or a valid BPF program will be run;
      in the other case, we'll end up copying more than we're supposed to,
      and most likely the trailing garbage will be rejected by the verifier
      as well (i.e. we need to fit instruction pattern, ret {A,K} needs to be
      last instruction, load/stores must be correct, etc); in case not, we
      would leak memory when dumping back instruction patterns. The code should
      have only used nla_len() as Dave noted to avoid this from the beginning.
      Anyway, lets fix it by rejecting such load attempts.
      
      Fixes: 7d1d65cb ("net: sched: cls_bpf: add BPF-based classifier")
      Signed-off-by: NDaniel Borkmann <dborkman@redhat.com>
      Acked-by: NJiri Pirko <jiri@resnulli.us>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7913ecf6
    • D
      Merge tag 'linux-can-fixes-for-3.19-20150121' of... · 9e79ce66
      David S. Miller 提交于
      Merge tag 'linux-can-fixes-for-3.19-20150121' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
      
      Marc Kleine-Budde says:
      
      ====================
      pull-request: can 2015-01-21
      
      this is a pull request for v3.19, net/master, which consists of a single patch.
      
      Viktor Babrian fixes the issue in the c_can dirver, that the CAN interface
      might continue to send frames after the interface has been shut down.
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      9e79ce66
  2. 26 1月, 2015 5 次提交
    • D
      Merge branch 's390' · 03a60580
      David S. Miller 提交于
      Ursula Braun says:
      
      ====================
      s390/qeth patches for net
      
      here are two s390/qeth patches built for net.
      One patch is quite large, but we would like to fix the locking warning
      seen in recent kernels as soon as possible. But if you want me to submit
      these patches for net-next, I will do.
      Or Gerlitz says:
      ====================
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      03a60580
    • T
      390/qeth: Fix locking warning during qeth device setup · 1aec42bc
      Thomas Richter 提交于
      Do not wait for channel command buffers in IPA commands.
      The potential wait could be done while holding a spin lock and causes
      in recent kernels such a bug if kernel lock debugging is enabled:
      
      kernel: BUG: sleeping function called from invalid context at drivers/s390/net/qeth_core_main.c:
      794
      kernel: in_atomic(): 1, irqs_disabled(): 0, pid: 2031, name: NetworkManager
      kernel: 2 locks held by NetworkManager/2031:
      kernel:  #0:  (rtnl_mutex){+.+.+.}, at: [<00000000006e0d7a>] rtnetlink_rcv+0x32/0x50
      kernel:  #1:  (_xmit_ETHER){+.....}, at: [<00000000006cfe90>] dev_set_rx_mode+0x30/0x50
      kernel: CPU: 0 PID: 2031 Comm: NetworkManager Not tainted 3.18.0-rc5-next-20141124 #1
      kernel:        00000000275fb1f0 00000000275fb280 0000000000000002 0000000000000000
                     00000000275fb320 00000000275fb298 00000000275fb298 00000000007e326a
                     0000000000000000 000000000099ce2c 00000000009b4988 000000000000000b
                     00000000275fb2e0 00000000275fb280 0000000000000000 0000000000000000
                     0000000000000000 00000000001129c8 00000000275fb280 00000000275fb2e0
      kernel: Call Trace:
      kernel: ([<00000000001128b0>] show_trace+0xf8/0x158)
      kernel:  [<000000000011297a>] show_stack+0x6a/0xe8
      kernel:  [<00000000007e995a>] dump_stack+0x82/0xb0
      kernel:  [<000000000017d668>] ___might_sleep+0x170/0x228
      kernel:  [<000003ff80026f0e>] qeth_wait_for_buffer+0x36/0xd0 [qeth]
      kernel:  [<000003ff80026fe2>] qeth_get_ipacmd_buffer+0x3a/0xc0 [qeth]
      kernel:  [<000003ff80105078>] qeth_l3_send_setdelmc+0x58/0xf8 [qeth_l3]
      kernel:  [<000003ff8010b1fe>] qeth_l3_set_ip_addr_list+0x2c6/0x848 [qeth_l3]
      kernel:  [<000003ff8010bbb4>] qeth_l3_set_multicast_list+0x434/0xc48 [qeth_l3]
      kernel:  [<00000000006cfe9a>] dev_set_rx_mode+0x3a/0x50
      kernel:  [<00000000006cff90>] __dev_open+0xe0/0x140
      kernel:  [<00000000006d02a0>] __dev_change_flags+0xa0/0x178
      kernel:  [<00000000006d03a8>] dev_change_flags+0x30/0x70
      kernel:  [<00000000006e14ee>] do_setlink+0x346/0x9a0
      ...
      
      The device driver has plenty of command buffers available
      per channel for channel command communication.
      In the extremely rare case when there is no command buffer
      available, return a NULL pointer and issue a warning
      in the kernel log. The caller handles the case when
      a NULL pointer is encountered and returns an error.
      
      In the case the wait for command buffer is possible
      (because no lock is held as in the OSN case), still wait
      until a channel command buffer is available.
      Signed-off-by: NThomas Richter <tmricht@linux.vnet.ibm.com>
      Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
      Reviewed-by: NEugene Crosser <Eugene.Crosser@ru.ibm.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1aec42bc
    • E
      qeth: clean up error handling · efbbc1d5
      Eugene Crosser 提交于
      In the functions that are registering and unregistering MAC
      addresses in the qeth-handled hardware, remove callback functions
      that are unnesessary, as only the return code is analyzed.
      Translate hardware response codes to semi-standard 'errno'-like
      codes for readability.
      
      Add kernel-doc description to the internal API function
      qeth_send_control_data().
      Signed-off-by: NEugene Crosser <Eugene.Crosser@ru.ibm.com>
      Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com>
      Reviewed-by: NThomas-Mich Richter <tmricht@linux.vnet.ibm.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      efbbc1d5
    • M
      ipv6: Fix __ip6_route_redirect · b0a1ba59
      Martin KaFai Lau 提交于
      In my last commit (a3c00e46: ipv6: Remove BACKTRACK macro), the changes in
      __ip6_route_redirect is incorrect.  The following case is missed:
      1. The for loop tries to find a valid gateway rt. If it fails to find
         one, rt will be NULL.
      2. When rt is NULL, it is set to the ip6_null_entry.
      3. The newly added 'else if', from a3c00e46, will stop the backtrack from
         happening.
      Signed-off-by: NMartin KaFai Lau <kafai@fb.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b0a1ba59
    • V
      net: dsa: set slave MII bus PHY mask · 24df8986
      Vivien Didelot 提交于
      When registering a mdio bus, Linux assumes than every port has a PHY and tries
      to scan it. If a switch port has no PHY registered, DSA will fail to register
      the slave MII bus. To fix this, set the slave MII bus PHY mask to the switch
      PHYs mask.
      
      As an example, if we use a Marvell MV88E6352 (which is a 7-port switch with no
      registered PHYs for port 5 and port 6), with the following declared names:
      
      	static struct dsa_chip_data switch_cdata = {
      		[...]
      		.port_names[0] = "sw0",
      		.port_names[1] = "sw1",
      		.port_names[2] = "sw2",
      		.port_names[3] = "sw3",
      		.port_names[4] = "sw4",
      		.port_names[5] = "cpu",
      	};
      
      DSA will fail to create the switch instance. With the PHY mask set for the
      slave MII bus, only the PHY for ports 0-4 will be scanned and the instance will
      be successfully created.
      Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
      Tested-by: NFlorian Fainelli <f.fainelli@gmail.com>
      Acked-by: NFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      24df8986
  3. 25 1月, 2015 6 次提交
  4. 24 1月, 2015 1 次提交
  5. 22 1月, 2015 1 次提交
  6. 20 1月, 2015 14 次提交
  7. 19 1月, 2015 7 次提交
  8. 18 1月, 2015 2 次提交
    • L
      Linux 3.19-rc5 · ec6f34e5
      Linus Torvalds 提交于
      ec6f34e5
    • L
      Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · d0ac5d8e
      Linus Torvalds 提交于
      Pull ARM SoC fixes from Olof Johansson:
       "We've been sitting on our fixes branch for a while, so this batch is
        unfortunately on the large side.
      
        A lot of these are tweaks and fixes to device trees, fixing various
        bugs around clocks, reg ranges, etc.  There's also a few defconfig
        updates (which are on the late side, no more of those).
      
        All in all the diffstat is bigger than ideal at this time, but nothing
        in here seems particularly risky"
      
      * tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
        reset: sunxi: fix spinlock initialization
        ARM: dts: disable CCI on exynos5420 based arndale-octa
        drivers: bus: check cci device tree node status
        ARM: rockchip: disable jtag/sdmmc autoswitching on rk3288
        ARM: nomadik: fix up leftover device tree pins
        ARM: at91: board-dt-sama5: add phy_fixup to override NAND_Tree
        ARM: at91/dt: sam9263: Add missing clocks to lcdc node
        ARM: at91: sama5d3: dt: correct the sound route
        ARM: at91/dt: sama5d4: fix the timer reg length
        ARM: exynos_defconfig: Enable LM90 driver
        ARM: exynos_defconfig: Enable options for display panel support
        arm: dts: Use pmu_system_controller phandle for dp phy
        ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
        ARM: dts: berlin: correct BG2Q's SM GPIO location.
        ARM: dts: berlin: add broken-cd and set bus width for eMMC in Marvell DMP DT
        ARM: dts: berlin: fix io clk and add missing core clk for BG2Q sdhci2 host
        ARM: dts: Revert disabling of smc91x for n900
        ARM: dts: imx51-babbage: Fix ULPI PHY reset modelling
        ARM: dts: dra7-evm: fix qspi device tree partition size
        ARM: omap2plus_defconfig: use CONFIG_CPUFREQ_DT
        ...
      d0ac5d8e