Commit Graph

427089 Commits

Author SHA1 Message Date
Ilia Mirkin
a7f1c1e65b drm/nv50/disp: use correct register to determine DP display bpp
Commit 0a0afd282f ("drm/nv50-/disp: move DP link training to core and
train from supervisor") added code that uses the wrong register for
computing the display bpp, used for bandwidth calculation. Adjust to use
the same register as used by exec_clkcmp and nv50_disp_intr_unk20_2_dp.

Reported-by: Torsten Wagner <torsten.wagner@gmail.com>
Reported-by: Michael Gulick <mgulick@mathworks.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67628
Cc: stable@vger.kernel.org # 3.9+
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-02-18 10:37:12 +10:00
Emil Velikov
95ca5b550a drm/nouveau/fb: use correct ram oclass for nv1a hardware
commit 8613e7314a
Author: Ben Skeggs <bskeggs@redhat.com>
Date:   Mon Oct 21 08:50:25 2013 +1000

    drm/nouveau/fb: remove ram oclass argument from base fb constructor

Introduced a unfortunate regression by using nv10 ram oclass for nv1a
hardware, causing corruption and eventually system lockup.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74866
Reported-by: John F. Godfrey <jfgodfrey@gmail.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Cc: stable@vger.kernel.org # 3.13+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-02-18 10:37:08 +10:00
Ilia Mirkin
a8c13aacdc drm/nv50/gr: add missing nv_error parameter priv
Commit ea7dce901 ("drm/nv50/gr: print mpc trap name when it's not an mp
trap") added an nv_error call that was missing the priv parameter. This
causes GPFs if the error is ever hit.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-02-18 10:37:02 +10:00
Alexandre Courbot
bf787d7cdf drm/nouveau: fix ENG_RUNLIST register address
Address of the ENG_RUNLIST register should be 0x002284 + (engine * 8),
not 0x002284 + (engine * 4).

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-02-18 10:36:58 +10:00
Ilia Mirkin
5ac607ec40 drm/nv4c/bios: disallow retrieving from prom on nv4x igp's
Suggested-by: Marcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-02-18 10:36:52 +10:00
Ilia Mirkin
b71313e14b drm/nv4c/vga: decode register is in a different place on nv4x igp's
Suggested-by: Marcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-02-18 10:36:49 +10:00
Ilia Mirkin
fa8c9ac72f drm/nv4c/mc: nv4x igp's have a different msi rearm register
See https://bugs.freedesktop.org/show_bug.cgi?id=74492

Reported-by: Ronald <ronald645@gmail.com>
Suggested-by: Marcin Kościelnicki <koriakin@0x04.net>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-02-18 10:36:45 +10:00
Ilia Mirkin
7d3428cd4b drm/nouveau: set irq_enabled manually
Since commit 0fa9061ae8 ("drm/nouveau/mc: handle irq-related setup
ourselves"), drm_device->irq_enabled remained unset. This is needed in
order to properly wait for a vblank event in the generic drm code.

See https://bugs.freedesktop.org/show_bug.cgi?id=74195

Reported-by: Jan Janecek <janjanjanx@gmail.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-02-18 10:36:35 +10:00
Vinayak Kale
39544ac9df ARM: 7957/1: add DSB after icache flush in __flush_icache_all()
Add DSB after icache flush to complete the cache maintenance operation.

Signed-off-by: Vinayak Kale <vkale@apm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-17 23:09:00 +00:00
Russell King
e83b366487 Fix uses of dma_max_pfn() when converting to a limiting address
We must use a 64-bit for this, otherwise overflowed bits get lost, and
that can result in a lower than intended value set.

Fixes: 8e0cb8a1f6 ("ARM: 7797/1: mmc: Use dma_max_pfn(dev) helper for bounce_limit calculations")
Fixes: 7d35496dd9 ("ARM: 7796/1: scsi: Use dma_max_pfn(dev) helper for bounce_limit calculations")
Tested-Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-17 23:08:41 +00:00
Duan Jiong
a6254864c0 ipv4: fix counter in_slow_tot
since commit 89aef8921bf("ipv4: Delete routing cache."), the counter
in_slow_tot can't work correctly.

The counter in_slow_tot increase by one when fib_lookup() return successfully
in ip_route_input_slow(), but actually the dst struct maybe not be created and
cached, so we can increase in_slow_tot after the dst struct is created.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-17 16:54:42 -05:00
Linus Torvalds
87eeff7974 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fixes from Sage Weil:
 "We have some patches fixing up ACL support issues from Zheng and
  Guangliang and a mount option to enable/disable this support.  (These
  fixes were somewhat delayed by the Chinese holiday.)

  There is also a small fix for cached readdir handling when directories
  are fragmented"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: fix __dcache_readdir()
  ceph: add acl, noacl options for cephfs mount
  ceph: make ceph_forget_all_cached_acls() static inline
  ceph: add missing init_acl() for mkdir() and atomic_open()
  ceph: fix ceph_set_acl()
  ceph: fix ceph_removexattr()
  ceph: remove xattr when null value is given to setxattr()
  ceph: properly handle XATTR_CREATE and XATTR_REPLACE
2014-02-17 13:51:00 -08:00
Linus Torvalds
351a7934c0 Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
 "Three cifs fixes, the most important fixing the problem with passing
  bogus pointers with writev (CVE-2014-0069).

  Two additional cifs fixes are still in review (including the fix for
  an append problem which Al also discovered)"

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Fix too big maxBuf size for SMB3 mounts
  cifs: ensure that uncached writes handle unmapped areas correctly
  [CIFS] Fix cifsacl mounts over smb2 to not call cifs
2014-02-17 13:50:11 -08:00
David Howells
7026f1929e FS-Cache: Handle removal of unadded object to the fscache_object_list rb tree
When FS-Cache allocates an object, the following sequence of events can
occur:

 -->fscache_alloc_object()
    -->cachefiles_alloc_object() [via cache->ops->alloc_object]
    <--[returns new object]
    -->fscache_attach_object()
    <--[failed]
    -->cachefiles_put_object() [via cache->ops->put_object]
       -->fscache_object_destroy()
          -->fscache_objlist_remove()
             -->rb_erase() to remove the object from fscache_object_list.

resulting in a crash in the rbtree code.

The problem is that the object is only added to fscache_object_list on
the success path of fscache_attach_object() where it calls
fscache_objlist_add().

So if fscache_attach_object() fails, the object won't have been added to
the objlist rbtree.  We do, however, unconditionally try to remove the
object from the tree.

Thanks to NeilBrown for finding this and suggesting this solution.

Reported-by: NeilBrown <neilb@suse.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: (a customer of) NeilBrown <neilb@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-17 13:47:35 -08:00
Dave Jones
416e2abd92 reiserfs: fix utterly brain-damaged indentation.
This has been this way for years, and every time I stumble across it I
lose my lunch.  After coming across it for the nth time in the Coverity
results, I had to overcome the bystander effect and do something about
it.

This ignores the 79 column limit in favor of making it look like C
instead of gibberish.

The correct thing to do here would be to lose some of the indentation by
breaking this function up into several smaller ones.  I might do that at
some point if I have the stomach to look at this again.

(Also some of those overlong ternary operations would likely be more
readable as regular if's)

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-17 13:46:33 -08:00
Tommie Gannert
3eca529953 irtty-sir.c: Do not set_termios() on irtty_close()
Issuing set_termios() from irtty_close() causes kernel Oops for
unplugged usb-serial devices.

Since no other tty_ldisc calls set_termios() on close and no tty driver
seem to check if tty->device_data is NULL or not on entry to set_termios(),
the only solution I can come up with is to remove the irtty_stop_receiver()
call, which only updates termios.

Signed-off-by: Tommie Gannert <tommie@gannert.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-17 16:27:51 -05:00
John W. Linville
ff95fe382c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2014-02-17 15:54:31 -05:00
Linus Torvalds
60f76eab19 Small dma-buf pull request for 3.14
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Merge tag 'dma-buf-for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf

Pull dma-buf fix from Sumit Semwal:
 "Just some debugfs output updates.

  There's another patch related to dma-buf, but it'll get upstreamed via
  Greg KH's pull request"

* tag 'dma-buf-for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf:
  dma-buf: update debugfs output
2014-02-17 12:42:45 -08:00
Linus Torvalds
2b250395c2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32
Pull AVR32 fixes from Hans-Christian Egtvedt.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32:
  avr32: add generic vga.h to Kbuild
  avr32: add generic ioremap_wc() definition in io.h
  avr32: Makefile: add '-D__linux__' flag for gcc-4.4.7 use
  avr32: fix missing module.h causing build failure in mimc200/fram.c
2014-02-17 12:40:36 -08:00
Yan, Zheng
4d5f5df673 ceph: fix __dcache_readdir()
If directory is fragmented, readdir() read its dirfrags one by one.
After reading all dirfrags, the corresponding dentries are sorted in
(frag_t, off) order in the dcache. If dentries of a directory are all
cached, __dcache_readdir() can use the cached dentries to satisfy
readdir syscall. But when checking if a given dentry is after the
position of readdir, __dcache_readdir() compares numerical value of
frag_t directly. This is wrong, it should use ceph_frag_compare().

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-02-17 12:37:13 -08:00
Sage Weil
45195e42c7 ceph: add acl, noacl options for cephfs mount
Make the 'acl' option dependent on having ACL support compiled in.  Make
the 'noacl' option work even without it so that one can always ask it to
be off and not error out on mount when it is not supported.

Signed-off-by: Guangliang Zhao <lucienchao@gmail.com>
Signed-off-by: Sage Weil <sage@inktank.com>
2014-02-17 12:37:12 -08:00
Guangliang Zhao
c969d9bf91 ceph: make ceph_forget_all_cached_acls() static inline
Signed-off-by: Guangliang Zhao <lucienchao@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Sage Weil <sage@inktank.com>
2014-02-17 12:37:12 -08:00
Yan, Zheng
b20a95a0dd ceph: add missing init_acl() for mkdir() and atomic_open()
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-02-17 12:37:11 -08:00
Yan, Zheng
7a92d64760 ceph: fix ceph_set_acl()
If acl is equivalent to file mode permission bits, ceph_set_acl()
needs to remove any existing acl xattr. Use __ceph_setxattr() to
handle both setting and removing acl xattr cases, it doesn't return
-ENODATA when there is no acl xattr.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-02-17 12:37:11 -08:00
Yan, Zheng
524186ace6 ceph: fix ceph_removexattr()
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-02-17 12:37:10 -08:00
Yan, Zheng
bcdfeb2eb4 ceph: remove xattr when null value is given to setxattr()
For the setxattr request, introduce a new flag CEPH_XATTR_REMOVE
to distinguish null value case from the zero-length value case.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-02-17 12:37:09 -08:00
Yan, Zheng
fbc0b970dd ceph: properly handle XATTR_CREATE and XATTR_REPLACE
return -EEXIST if XATTR_CREATE is set and xattr alread exists.
return -ENODATA if XATTR_REPLACE is set but xattr does not exist.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
2014-02-17 12:37:05 -08:00
Linus Torvalds
f2a77abdb8 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
 "Here are some more powerpc fixes for 3.14

  The main one is a nasty issue with the NUMA balancing support which
  requires a small generic change and the addition of a new accessor to
  set _PAGE_NUMA.  Both have been reviewed and acked by Mel and Rik.

  The changelog should have plenty of details but basically, without
  this fix, we get random user segfaults and/or corruptions due to
  missing TLB/hash flushes.  Aneesh series of 3 patches fixes it.

  We have some vDSO vs.  perf fixes from Anton, some small EEH fixes
  from Gavin, a ppc32 regression vs the stack overflow detector, and a
  fix for the way we handle PCIe host bridge speed settings on pseries
  (which is needed for proper operations of AMD graphics cards on
  Power8)"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/eeh: Disable EEH on reboot
  powerpc/eeh: Cleanup on eeh_subsystem_enabled
  powerpc/powernv: Rework EEH reset
  powerpc: Use unstripped VDSO image for more accurate profiling data
  powerpc: Link VDSOs at 0x0
  mm: Use ptep/pmdp_set_numa() for updating _PAGE_NUMA bit
  mm: Dirty accountable change only apply to non prot numa case
  powerpc/mm: Add new "set" flag argument to pte/pmd update function
  powerpc/pseries: Add Gen3 definitions for PCIE link speed
  powerpc/pseries: Fix regression on PCI link speed
  powerpc: Set the correct ksp_limit on ppc32 when switching to irq stack
2014-02-17 12:36:49 -08:00
Linus Torvalds
e4178d809f printk: fix syslog() overflowing user buffer
This is not a buffer overflow in the traditional sense: we don't
overflow any *kernel* buffers, but we do mis-count the amount of data we
copy back to user space for the SYSLOG_ACTION_READ_ALL case.

In particular, if the user buffer is too small to hold everything, and
*if* there is a continuation line at just the right place, we can end up
giving the user more data than he asked for.

The reason is that we first count up the number of bytes all the log
records contains, then we walk the records again until we've skipped the
records at the beginning that won't fit, and then we walk the rest of
the records and copy them to the user space buffer.

And in between that "skip the initial records that won't fit" and the
"copy the records that *will* fit to user space", we reset the 'prev'
variable that contained the record information for the last record not
copied.  That meant that when we started copying to user space, we now
had a different character count than what we had originally calculated
in the first record walk-through.

The fix is to simply not clear the 'prev' flags value (in both cases
where we had the same logic: syslog_print_all and kmsg_dump_get_buffer:
the latter is used for pstore-like dumping)

Reported-and-tested-by: Debabrata Banerjee <dbanerje@akamai.com>
Acked-by: Kay Sievers <kay@vrfy.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-17 12:24:45 -08:00
David Herrmann
3ccfd0a8d7 HID: hyperv: make sure input buffer is big enough
We need at least HID_MAX_BUFFER_SIZE (4096) bytes as input buffer. HID
core depends on this as it requires every input report to be at least as
big as advertised.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-02-17 21:18:35 +01:00
David Herrmann
a4b1b5877b HID: Bluetooth: hidp: make sure input buffers are big enough
HID core expects the input buffers to be at least of size 4096
(HID_MAX_BUFFER_SIZE). Other sizes will result in buffer-overflows if an
input-report is smaller than advertised. We could, like i2c, compute the
biggest report-size instead of using HID_MAX_BUFFER_SIZE, but this will
blow up if report-descriptors are changed after ->start() has been called.
So lets be safe and just use the biggest buffer we have.

Note that this adds an additional copy to the HIDP input path. If there is
a way to make sure the skb-buf is big enough, we should use that instead.

The best way would be to make hid-core honor the @size argument, though,
that sounds easier than it is. So lets just fix the buffer-overflows for
now and afterwards look for a faster way for all transport drivers.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-02-17 21:17:55 +01:00
Jiri Bohac
163c8ff30d bonding: 802.3ad: make aggregator_identifier bond-private
aggregator_identifier is used to assign unique aggregator identifiers
to aggregators of a bond during device enslaving.

aggregator_identifier is currently a global variable that is zeroed in
bond_3ad_initialize().

This sequence will lead to duplicate aggregator identifiers for eth1 and eth3:

create bond0
change bond0 mode to 802.3ad
enslave eth0 to bond0 		//eth0 gets agg id 1
enslave eth1 to bond0 		//eth1 gets agg id 2
create bond1
change bond1 mode to 802.3ad
enslave eth2 to bond1		//aggregator_identifier is reset to 0
				//eth2 gets agg id 1
enslave eth3 to bond0 		//eth3 gets agg id 2

Fix this by making aggregator_identifier private to the bond.

Signed-off-by: Jiri Bohac <jbohac@suse.cz>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-17 14:54:06 -05:00
Emil Goode
eb85569fe2 usbnet: remove generic hard_header_len check
This patch removes a generic hard_header_len check from the usbnet
module that is causing dropped packages under certain circumstances
for devices that send rx packets that cross urb boundaries.

One example is the AX88772B which occasionally send rx packets that
cross urb boundaries where the remaining partial packet is sent with
no hardware header. When the buffer with a partial packet is of less
number of octets than the value of hard_header_len the buffer is
discarded by the usbnet module.

With AX88772B this can be reproduced by using ping with a packet
size between 1965-1976.

The bug has been reported here:

https://bugzilla.kernel.org/show_bug.cgi?id=29082

This patch introduces the following changes:
- Removes the generic hard_header_len check in the rx_complete
  function in the usbnet module.
- Introduces a ETH_HLEN check for skbs that are not cloned from
  within a rx_fixup callback.
- For safety a hard_header_len check is added to each rx_fixup
  callback function that could be affected by this change.
  These extra checks could possibly be removed by someone
  who has the hardware to test.
- Removes a call to dev_kfree_skb_any() and instead utilizes the
  dev->done list to queue skbs for cleanup.

The changes place full responsibility on the rx_fixup callback
functions that clone skbs to only pass valid skbs to the
usbnet_skb_return function.

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Reported-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-17 14:35:46 -05:00
Trond Myklebust
292f503cad NFSv4: Use the correct net namespace in nfs4_update_server
We need to use the same net namespace that was used to resolve
the hostname and sockaddr arguments.

Fixes: 32e62b7c3e (NFS: Add nfs4_update_server)
Cc: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-02-17 14:15:46 -05:00
Nicolas Dichtel
08b44656c0 gre: add link local route when local addr is any
This bug was reported by Steinar H. Gunderson and was introduced by commit
f7cb888633 ("sit/gre6: don't try to add the same route two times").

root@morgental:~# ip tunnel add foo mode gre remote 1.2.3.4 ttl 64
root@morgental:~# ip link set foo up mtu 1468
root@morgental:~# ip -6 route show dev foo
fe80::/64  proto kernel  metric 256

but after the above commit, no such route shows up.

There is no link local route because dev->dev_addr is 0 (because local ipv4
address is 0), hence no link local address is configured.

In this scenario, the link local address is added manually: 'ip -6 addr add
fe80::1 dev foo' and because prefix is /128, no link local route is added by the
kernel.

Even if the right things to do is to add the link local address with a /64
prefix, we need to restore the previous behavior to avoid breaking userpace.

Reported-by: Steinar H. Gunderson <sesse@samfundet.no>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-17 14:08:26 -05:00
Antonio Quartulli
70b271a78b batman-adv: fix potential kernel paging error for unicast transmissions
batadv_send_skb_prepare_unicast(_4addr) might reallocate the
skb's data. If it does then our ethhdr pointer is not valid
anymore in batadv_send_skb_unicast(), resulting in a kernel
paging error.

Fixing this by refetching the ethhdr pointer after the
potential reallocation.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
2014-02-17 17:17:02 +01:00
Antonio Quartulli
a5a5cb8cab batman-adv: avoid double free when orig_node initialization fails
In the failure path of the orig_node initialization routine
the orig_node->bat_iv.bcast_own field is free'd twice: first
in batadv_iv_ogm_orig_get() and then later in
batadv_orig_node_free_rcu().

Fix it by removing the kfree in batadv_iv_ogm_orig_get().

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2014-02-17 17:17:02 +01:00
Antonio Quartulli
05c3c8a636 batman-adv: free skb on TVLV parsing success
When the TVLV parsing routine succeed the skb is left
untouched thus leading to a memory leak.

Fix this by consuming the skb in case of success.

Introduced by ef26157747
("batman-adv: tvlv - basic infrastructure")

Reported-by: Russel Senior <russell@personaltelco.net>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Tested-by: Russell Senior <russell@personaltelco.net>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2014-02-17 17:17:02 +01:00
Antonio Quartulli
a30e22ca84 batman-adv: fix TT CRC computation by ensuring byte order
When computing the CRC on a 2byte variable the order of
the bytes obviously alters the final result. This means
that computing the CRC over the same value on two archs
having different endianess leads to different numbers.

The global and local translation table CRC computation
routine makes this mistake while processing the clients
VIDs. The result is a continuous CRC mismatching between
nodes having different endianess.

Fix this by converting the VID to Network Order before
processing it. This guarantees that every node uses the same
byte order.

Introduced by 7ea7b4a142
("batman-adv: make the TT CRC logic VLAN specific")

Reported-by: Russel Senior <russell@personaltelco.net>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Tested-by: Russell Senior <russell@personaltelco.net>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2014-02-17 17:17:02 +01:00
Simon Wunderlich
b2262df7fc batman-adv: fix potential orig_node reference leak
Since batadv_orig_node_new() sets the refcount to two, assuming that
the calling function will use a reference for putting the orig_node into
a hash or similar, both references must be freed if initialization of
the orig_node fails. Otherwise that object may be leaked in that error
case.

Reported-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
2014-02-17 17:17:01 +01:00
Antonio Quartulli
08bf0ed29c batman-adv: avoid potential race condition when adding a new neighbour
When adding a new neighbour it is important to atomically
perform the following:
- check if the neighbour already exists
- append the neighbour to the proper list

If the two operations are not performed in an atomic context
it is possible that two concurrent insertions add the same
neighbour twice.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2014-02-17 17:17:01 +01:00
Antonio Quartulli
f1791425cf batman-adv: properly check pskb_may_pull return value
pskb_may_pull() returns 1 on success and 0 in case of failure,
therefore checking for the return value being negative does
not make sense at all.

This way if the function fails we will probably read beyond the current
skb data buffer. Fix this by doing the proper check.

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2014-02-17 17:17:01 +01:00
Antonio Quartulli
91c2b1a9f6 batman-adv: release vlan object after checking the CRC
There is a refcounter unbalance in the CRC checking routine
invoked on OGM reception. A vlan object is retrieved (thus
its refcounter is increased by one) but it is never properly
released. This leads to a memleak because the vlan object
will never be free'd.

Fix this by releasing the vlan object after having read the
CRC.

Reported-by: Russell Senior <russell@personaltelco.net>
Reported-by: Daniel <daniel@makrotopia.org>
Reported-by: cmsv <cmsv@wirelesspt.net>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2014-02-17 17:17:00 +01:00
Antonio Quartulli
e889241f45 batman-adv: fix TT-TVLV parsing on OGM reception
When accessing a TT-TVLV container in the OGM RX path
the variable pointing to the list of changes to apply is
altered by mistake.

This makes the TT component read data at the wrong position
in the OGM packet buffer.

Fix it by removing the bogus pointer alteration.

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2014-02-17 17:17:00 +01:00
Antonio Quartulli
930cd6e46e batman-adv: fix soft-interface MTU computation
The current MTU computation always returns a value
smaller than 1500bytes even if the real interfaces
have an MTU large enough to compensate the batman-adv
overhead.

Fix the computation by properly returning the highest
admitted value.

Introduced by a19d3d85e1
("batman-adv: limit local translation table max size")

Reported-by: Russell Senior <russell@personaltelco.net>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2014-02-17 17:17:00 +01:00
Archana Patni
218eb9ed84 HID: hid-sensor-hub: quirk for STM Sensor hub
Added STM sensor hub vendor id in HID_SENSOR_HUB_ENUM_QUIRK to
fix report descriptors. These devices uses old FW which uses
logical 0 as minimum. In these, HID reports are not using proper
collection classes. So we need to fix report descriptors,for
such devices. This will not have any impact, if the FW uses
logical 1 as minimum.

We look for usage id for "power and report state", and modify
logical minimum value to 1.

This is a follow-up patch to commit id 875e36f8.

Signed-off-by: Archana Patni <archana.patni@linux.intel.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-02-17 15:05:02 +01:00
Chen Gang
d7668f9d44 avr32: add generic vga.h to Kbuild
Need add generic "vga.h", or can not pass building for allmodconfig,
the related error:

    CC [M]  drivers/gpu/drm/drm_irq.o
  In file included from include/linux/vgaarb.h:34,
                   from drivers/gpu/drm/drm_irq.c:42:
  include/video/vga.h:22:21: error: asm/vga.h: No such file or directory

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
2014-02-17 11:24:48 +01:00
Chen Gang
1bbce4f3d1 avr32: add generic ioremap_wc() definition in io.h
Need generic ioremap_wc(), or can not pass compiling with allmodconfig,
the related error:

    CC [M]  drivers/gpu/drm/drm_bufs.o
  drivers/gpu/drm/drm_bufs.c: In function 'drm_addmap_core':
  drivers/gpu/drm/drm_bufs.c:217: error: implicit declaration of function 'ioremap_wc'
  drivers/gpu/drm/drm_bufs.c:218: warning: assignment makes pointer from integer without a cast

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
2014-02-17 11:24:45 +01:00
Chen Gang
8d80390cfc avr32: Makefile: add '-D__linux__' flag for gcc-4.4.7 use
For avr32 cross compiler, do not define '__linux__' internally, so it
will cause issue with allmodconfig.

The related error:

    CC [M]  fs/coda/psdev.o
  In file included from include/linux/coda.h:64,
                   from fs/coda/psdev.c:45:
  include/uapi/linux/coda.h:221: error: expected specifier-qualifier-list before 'u_quad_t'

The related toolchain version (which only download, not re-compile):

  [root@gchen linux-next]# /upstream/toolchain/download/avr32-gnu-toolchain-linux_x86/bin/avr32-gcc -v
  Using built-in specs.
  Target: avr32
  Configured with: /data2/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/src/gcc/configure --target=avr32 --host=i686-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86 --enable-languages=c,c++ --disable-nls --disable-libssp --disable-libstdcxx-pch --with-dwarf2 --enable-version-specific-runtime-libs --disable-shared --enable-doc --with-mpfr-lib=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86/lib --with-mpfr-include=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86/include --with-gmp=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86 --with-mpc=/home/toolsbuild/jenkins-knuth/workspace/avr32-gnu-toolchain/avr32-gnu-toolchain-linux_x86 --enable-__cxa_atexit --disable-shared --with-newlib --with-pkgversion=AVR_32_bit_GNU_Toolchain_3.4.2_435 --with-bugurl=http://www
.atmel.com/avr
  Thread model: single
  gcc version 4.4.7 (AVR_32_bit_GNU_Toolchain_3.4.2_435)

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
Cc: stable@vger.kernel.org
2014-02-17 11:24:43 +01:00
Paul Gortmaker
5745d6a41a avr32: fix missing module.h causing build failure in mimc200/fram.c
Causing this:

In file included from arch/avr32/boards/mimc200/fram.c:13:
include/linux/miscdevice.h:51: error: field 'list' has incomplete type
include/linux/miscdevice.h:55: error: expected specifier-qualifier-list before 'mode_t'
arch/avr32/boards/mimc200/fram.c:42: error: 'THIS_MODULE' undeclared here (not in a function)

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: stable@vger.kernel.org
2014-02-17 11:24:39 +01:00