1. 27 Jan, 2015 2 commits
  2. 26 Jan, 2015 9 commits
    • David S. Miller's avatar
      Merge branch 'cls_bpf' · b6663ad7
      David S. Miller authored
      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: default avatarDavid S. Miller <davem@davemloft.net>
      b6663ad7
    • Daniel Borkmann's avatar
      net: cls_bpf: fix auto generation of per list handles · 3f2ab135
      Daniel Borkmann authored
      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: default avatarDaniel Borkmann <dborkman@redhat.com>
      Acked-by: default avatarJiri Pirko <jiri@resnulli.us>
      Acked-by: default avatarAlexei Starovoitov <ast@plumgrid.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3f2ab135
    • Daniel Borkmann's avatar
      net: cls_bpf: fix size mismatch on filter preparation · 7913ecf6
      Daniel Borkmann authored
      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: default avatarDaniel Borkmann <dborkman@redhat.com>
      Acked-by: default avatarJiri Pirko <jiri@resnulli.us>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7913ecf6
    • David S. Miller's avatar
      Merge tag 'linux-can-fixes-for-3.19-20150121' of... · 9e79ce66
      David S. Miller authored
      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: default avatarDavid S. Miller <davem@davemloft.net>
      9e79ce66
    • David S. Miller's avatar
      Merge branch 's390' · 03a60580
      David S. Miller authored
      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: default avatarDavid S. Miller <davem@davemloft.net>
      03a60580
    • Thomas Richter's avatar
      390/qeth: Fix locking warning during qeth device setup · 1aec42bc
      Thomas Richter authored
      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: default avatarThomas Richter <tmricht@linux.vnet.ibm.com>
      Signed-off-by: default avatarUrsula Braun <ursula.braun@de.ibm.com>
      Reviewed-by: default avatarEugene Crosser <Eugene.Crosser@ru.ibm.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1aec42bc
    • Eugene Crosser's avatar
      qeth: clean up error handling · efbbc1d5
      Eugene Crosser authored
      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: default avatarEugene Crosser <Eugene.Crosser@ru.ibm.com>
      Signed-off-by: default avatarUrsula Braun <ursula.braun@de.ibm.com>
      Reviewed-by: default avatarThomas-Mich Richter <tmricht@linux.vnet.ibm.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      efbbc1d5
    • Martin KaFai Lau's avatar
      ipv6: Fix __ip6_route_redirect · b0a1ba59
      Martin KaFai Lau authored
      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: default avatarMartin KaFai Lau <kafai@fb.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b0a1ba59
    • Vivien Didelot's avatar
      net: dsa: set slave MII bus PHY mask · 24df8986
      Vivien Didelot authored
      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: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
      Tested-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      24df8986
  3. 25 Jan, 2015 6 commits
  4. 24 Jan, 2015 1 commit
  5. 21 Jan, 2015 1 commit
  6. 20 Jan, 2015 4 commits
    • Linus Torvalds's avatar
      Merge tag 'pinctrl-v3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl · 06efe0e5
      Linus Torvalds authored
      Pull pin control fixes from Linus Walleij:
       "Here is a (hopefully final) slew of pin control fixes for the v3.19
        series.  The deadlock fix is kind of serious and tagged for stable,
        the rest is business as usual.
      
         - Fix two deadlocks around the pin control mutexes, a long-standing
           issue that manifest itself in plug/unplug of pin controllers.
           (Tagged for stable.)
      
         - Handle an error path with zero functions in the Qualcomm pin
           controller.
      
         - Drop a bogus second GPIO chip added in the Lantiq driver.
      
         - Fix sudden IRQ loss on Rockchip pin controllers.
      
         - Register the GIT tree in MAINTAINERS"
      
      * tag 'pinctrl-v3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
        pinctrl: MAINTAINERS: add git tree reference
        pinctrl: qcom: Don't iterate past end of function array
        pinctrl: lantiq: remove bogus of_gpio_chip_add
        pinctrl: Fix two deadlocks
        pinctrl: rockchip: Avoid losing interrupts when supporting both edges
      06efe0e5
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · eef8f4c2
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Socket addresses returned in the error queue need to be fully
          initialized before being passed on to userspace, fix from Willem de
          Bruijn.
      
       2) Interrupt handling fixes to davinci_emac driver from Tony Lindgren.
      
       3) Fix races between receive packet steering and cpu hotplug, from Eric
          Dumazet.
      
       4) Allowing netlink sockets to subscribe to unknown multicast groups
          leads to crashes, don't allow it.  From Johannes Berg.
      
       5) One to many socket races in SCTP fixed by Daniel Borkmann.
      
       6) Put in a guard against the mis-use of ipv6 atomic fragments, from
          Hagen Paul Pfeifer.
      
       7) Fix promisc mode and ethtool crashes in sh_eth driver, from Ben
          Hutchings.
      
       8) NULL deref and double kfree fix in sxgbe driver from Girish K.S and
          Byungho An.
      
       9) cfg80211 deadlock fix from Arik Nemtsov.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (36 commits)
        s2io: use snprintf() as a safety feature
        r8152: remove sram_read
        r8152: remove generic_ocp_read before writing
        bgmac: activate irqs only if there is nothing to poll
        bgmac: register napi before the device
        sh_eth: Fix ethtool operation crash when net device is down
        sh_eth: Fix promiscuous mode on chips without TSU
        ipv6: stop sending PTB packets for MTU < 1280
        net: sctp: fix race for one-to-many sockets in sendmsg's auto associate
        genetlink: synchronize socket closing and family removal
        genetlink: disallow subscribing to unknown mcast groups
        genetlink: document parallel_ops
        net: rps: fix cpu unplug
        net: davinci_emac: Add support for emac on dm816x
        net: davinci_emac: Fix ioremap for devices with MDIO within the EMAC address space
        net: davinci_emac: Fix incomplete code for getting the phy from device tree
        net: davinci_emac: Free clock after checking the frequency
        net: davinci_emac: Fix runtime pm calls for davinci_emac
        net: davinci_emac: Fix hangs with interrupts
        ip: zero sockaddr returned on error queue
        ...
      eef8f4c2
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · 22628890
      Linus Torvalds authored
      Pull crypto fix from Herbert Xu:
       "This fixes a regression that arose from the change to add a crypto
        prefix to module names which was done to prevent the loading of
        arbitrary modules through the Crypto API.
      
        In particular, a number of modules were missing the crypto prefix
        which meant that they could no longer be autoloaded"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
        crypto: add missing crypto module aliases
      22628890
    • Dan Carpenter's avatar
      s2io: use snprintf() as a safety feature · a8c1d28a
      Dan Carpenter authored
      "sp->desc[i]" has 25 characters.  "dev->name" has 15 characters.  If we
      used all 15 characters then the sprintf() would overflow.
      
      I changed the "sprintf(sp->name, "%s Neterion %s"" to snprintf(), as
      well, even though it can't overflow just to be consistent.
      Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a8c1d28a
  7. 19 Jan, 2015 14 commits
  8. 18 Jan, 2015 3 commits
    • Emmanuel Grumbach's avatar
      iwlwifi: mvm: abort scheduled scan upon RFKILL · 90ea15c1
      Emmanuel Grumbach authored
      When we have an active scheduled scan, and the RFKILL
      interrupt kicks in, the stack will cancel the scheduled
      scan as part of the down flow. But cancelling scheduled
      scan usually implies sending a command to the firwmare
      which has been killed as part of the RFKILL interrupt
      handling.
      Because of that, we returned an error to mac80211 when
      it asked to stop the scheduled scan and didn't notify the
      end of the scheduled scan. Besides a fat warning, this led
      to a situation in which cfg80211 would refuse any new scan
      request.
      
      To disentangle this, fake that the scheduled scan has been
      stopped without sending the command to the firwmare, return
      0 after having properly let cfg80211 know that the scan
      has been cancelled.
      
      This is basically the same as:
      commit 9b520d84
      Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
      Date:   Tue Nov 4 15:54:11 2014 +0200
      
          iwlwifi: mvm: abort scan upon RFKILL
      
          This code existed but not for all the different FW APIs
          we support.
          Fix this.
      
      but for the scheduled scan case.
      
      Link: http://permalink.gmane.org/gmane.linux.kernel.wireless.general/133232Reported-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
      90ea15c1
    • Linus Torvalds's avatar
      Merge tag 'gpio-v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · b62a9c20
      Linus Torvalds authored
      Pull GPIO fixes from Linus Walleij:
       "Here is a set of fixes that mainly appeared when Johan Hovold started
        exercising the removal path of the GPIO library, dealing with
        hotplugging of GPIO controllers. Details from tag:
      
        A slew of fixes dealing with some irritating bugs (non-regressions)
        that have been around forever in the GPIO subsystem, most of them also
        tagged for stable:
      
         - A large slew of fixes from Johan Hovold who is finally testing and
           reviewing the removal path of the GPIO drivers.
      
         - Fix of_get_named_gpiod_flags() so it works as expected.
      
         - Fix an IRQ handling bug in the crystalcove driver"
      
      * tag 'gpio-v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        gpiolib: of: Correct error handling in of_get_named_gpiod_flags
        gpio: sysfs: fix gpio attribute-creation race
        gpio: sysfs: fix gpio device-attribute leak
        gpio: sysfs: fix gpio-chip device-attribute leak
        gpio: unregister gpiochip device before removing it
        gpio: fix sleep-while-atomic in gpiochip_remove
        gpio: fix memory leak and sleep-while-atomic
        gpio: clean up gpiochip_add error handling
        gpio: fix gpio-chip list corruption
        gpio: fix memory and reference leaks in gpiochip_add error path
        gpio: crystalcove: use handle_nested_irq
      b62a9c20
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 66893885
      Linus Torvalds authored
      Pull input subsystem fixes from Dmitry Torokhov.
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: uinput - fix ioctl nr overflow for UI_GET_SYSNAME/VERSION
        Input: I8042 - add Acer Aspire 7738 to the nomux list
        Input: elantech - support new ICs types for version 4
        Input: i8042 - reset keyboard to fix Elantech touchpad detection
        MAINTAINERS: remove Dmitry Torokhov's alternate address
      66893885