Граф коммитов

482559 Коммитов

Автор SHA1 Сообщение Дата
Michal Kubeček fbe168ba91 net: generic dev_disable_lro() stacked device handling
Large receive offloading is known to cause problems if received packets
are passed to other host. Therefore the kernel disables it by calling
dev_disable_lro() whenever a network device is enslaved in a bridge or
forwarding is enabled for it (or globally). For virtual devices we need
to disable LRO on the underlying physical device (which is actually
receiving the packets).

Current dev_disable_lro() code handles this  propagation for a vlan
(including 802.1ad nested vlan), macvlan or a vlan on top of a macvlan.
It doesn't handle other stacked devices and their combinations, in
particular propagation from a bond to its slaves which often causes
problems in virtualization setups.

As we now have generic data structures describing the upper-lower device
relationship, dev_disable_lro() can be generalized to disable LRO also
for all lower devices (if any) once it is disabled for the device
itself.

For bonding and teaming devices, it is necessary to disable LRO not only
on current slaves at the moment when dev_disable_lro() is called but
also on any slave (port) added later.

v2: use lower device links for all devices (including vlan and macvlan)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:48:56 -05:00
Dan Carpenter b6267d3e80 amd-xgbe: fix ->rss_hash_type
There was a missing break statement so we set everything to
PKT_HASH_TYPE_L3 even when we intended to use PKT_HASH_TYPE_L4.

Fixes: 5b9dfe299e ('amd-xgbe: Provide support for receive side scaling')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:39:54 -05:00
Herbert Xu 0c828f2f83 lib: rhashtable - Remove weird non-ASCII characters from comments
My editor spewed garbage that looked like memory corruption on
my screen.  It turns out that a number of occurences of "fi" got
turned into a ligature.

This patch replaces these ligatures with the ASCII letters "fi".

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Cheers,
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:38:46 -05:00
Alexander Kochetkov 6ff53fd371 net/smsc911x: Fix delays in the PHY enable/disable routines
Increased delay in the smsc911x_phy_disable_energy_detect (from 1ms to 2ms).
Dropped delays in the smsc911x_phy_enable_energy_detect (100ms and 1ms).

The patch affect SMSC LAN generation 4 chips with integrated PHY (LAN9221).

I saw problems with soft reset due to wrong udelay timings.
After I fixed udelay, I measured the time needed to bring integrated PHY
from power-down to operational mode (the time beetween clearing EDPWRDOWN
bit and soft reset complete event). I got 1ms (measured using ktime_get).
The value is equal to the current value (1ms) used in the
smsc911x_phy_disable_energy_detect. It is near the upper bound and in order
to avoid rare soft reset faults it is doubled (2ms).

I don't know official timing for bringing up integrated PHY as specs doesn't
clarify this (or may be I didn't found).

It looks safe to drop delays before and after setting EDPWRDOWN bit
(enable PHY power-down mode). I didn't saw any regressions with the patch.

The patch was reviewed by Steve Glendinning and Microchip Team.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Acked-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:37:53 -05:00
Alexander Kochetkov 242bcd5ba1 net/smsc911x: Fix rare soft reset timeout issue due to PHY power-down mode
The patch affect SMSC LAN generation 4 chips with integrated PHY (LAN9221).

It is possible that PHY could enter power-down mode (ENERGYON clear),
between ENERGYON bit check in smsc911x_phy_disable_energy_detect and SRST
bit set in smsc911x_soft_reset. This could happen, for example, if someone
disconnect ethernet cable between the checks. The PHY in a power-down mode
would prevent the MAC portion of chip to be software reseted.

Initially found by code review, confirmed later using test case.

This is low probability issue, and in order to reproduce it you have to
run the script:

while true; do
	ifconfig eth0 down
	ifconfig eth0 up || break
done

While the script is running you have to plug/unplug ethernet cable many
times (using gpio controlled ethernet switch, for example) until get:

[ 4516.477783] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 4516.512207] smsc911x smsc911x.0: eth0: SMSC911x/921x identified at 0xce006000, IRQ: 336
[ 4516.524658] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 4516.559082] smsc911x smsc911x.0: eth0: SMSC911x/921x identified at 0xce006000, IRQ: 336
[ 4516.571990] ADDRCONF(NETDEV_UP): eth0: link is not ready
ifconfig: SIOCSIFFLAGS: Input/output error

The patch was reviewed by Steve Glendinning and Microchip Team.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Acked-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:37:53 -05:00
Anish Bhatt d7990b0c34 cxgb4i/cxgb4 : Refactor macros to conform to uniform standards
Refactored all macros used in cxgb4i as part of previously started cxgb4 macro
names cleanup. Makes them more uniform and avoids namespace collision.
Minor changes in other drivers where required as some of these macros are used
 by multiple drivers, affected drivers are iw_cxgb4, cxgb4(vf) & csiostor

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:36:22 -05:00
Jason Wang 8c847d2541 tun: fix issues of iovec iterators using in tun_put_user()
This patch fixes two issues after using iovec iterators:
- vlan_offset should be initialized to zero, otherwise unexpected offset
  will be used in skb_copy_datagram_iter()
- advance iovec iterator when vnet_hdr_sz is greater than sizeof(gso), this
  is the case when mergeable rx buffer were enabled for a virt guest.

Fixes e0b46d0ee9 ("tun: Use iovec iterators")
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:33:22 -05:00
Thomas Graf 882288c05e FOU: Fix no return statement warning for !CONFIG_NET_FOU_IP_TUNNELS
net/ipv4/fou.c: In function ‘ip_tunnel_encap_del_fou_ops’:
net/ipv4/fou.c:861:1: warning: no return statement in function returning non-void [-Wreturn-type]

Fixes: a8c5f90fb5 ("ip_tunnel: Ops registration for secondary encap (fou, gue)")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-13 14:32:00 -05:00
Ilya Dryomov cc9f1f518c libceph: change from BUG to WARN for __remove_osd() asserts
No reason to use BUG_ON for osd request list assertions.

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
2014-11-13 22:26:34 +03:00
Ilya Dryomov ba9d114ec5 libceph: clear r_req_lru_item in __unregister_linger_request()
kick_requests() can put linger requests on the notarget list.  This
means we need to clear the much-overloaded req->r_req_lru_item in
__unregister_linger_request() as well, or we get an assertion failure
in ceph_osdc_release_request() - !list_empty(&req->r_req_lru_item).

AFAICT the assumption was that registered linger requests cannot be on
any of req->r_req_lru_item lists, but that's clearly not the case.

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
2014-11-13 22:21:14 +03:00
Ilya Dryomov a390de0208 libceph: unlink from o_linger_requests when clearing r_osd
Requests have to be unlinked from both osd->o_requests (normal
requests) and osd->o_linger_requests (linger requests) lists when
clearing req->r_osd.  Otherwise __unregister_linger_request() gets
confused and we trip over a !list_empty(&osd->o_linger_requests)
assert in __remove_osd().

MON=1 OSD=1:

    # cat remove-osd.sh
    #!/bin/bash
    rbd create --size 1 test
    DEV=$(rbd map test)
    ceph osd out 0
    sleep 3
    rbd map dne/dne # obtain a new osdmap as a side effect
    rbd unmap $DEV & # will block
    sleep 3
    ceph osd in 0

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
2014-11-13 22:21:13 +03:00
Ilya Dryomov aaef31703a libceph: do not crash on large auth tickets
Large (greater than 32k, the value of PAGE_ALLOC_COSTLY_ORDER) auth
tickets will have their buffers vmalloc'ed, which leads to the
following crash in crypto:

[   28.685082] BUG: unable to handle kernel paging request at ffffeb04000032c0
[   28.686032] IP: [<ffffffff81392b42>] scatterwalk_pagedone+0x22/0x80
[   28.686032] PGD 0
[   28.688088] Oops: 0000 [#1] PREEMPT SMP
[   28.688088] Modules linked in:
[   28.688088] CPU: 0 PID: 878 Comm: kworker/0:2 Not tainted 3.17.0-vm+ #305
[   28.688088] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
[   28.688088] Workqueue: ceph-msgr con_work
[   28.688088] task: ffff88011a7f9030 ti: ffff8800d903c000 task.ti: ffff8800d903c000
[   28.688088] RIP: 0010:[<ffffffff81392b42>]  [<ffffffff81392b42>] scatterwalk_pagedone+0x22/0x80
[   28.688088] RSP: 0018:ffff8800d903f688  EFLAGS: 00010286
[   28.688088] RAX: ffffeb04000032c0 RBX: ffff8800d903f718 RCX: ffffeb04000032c0
[   28.688088] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8800d903f750
[   28.688088] RBP: ffff8800d903f688 R08: 00000000000007de R09: ffff8800d903f880
[   28.688088] R10: 18df467c72d6257b R11: 0000000000000000 R12: 0000000000000010
[   28.688088] R13: ffff8800d903f750 R14: ffff8800d903f8a0 R15: 0000000000000000
[   28.688088] FS:  00007f50a41c7700(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000
[   28.688088] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   28.688088] CR2: ffffeb04000032c0 CR3: 00000000da3f3000 CR4: 00000000000006b0
[   28.688088] Stack:
[   28.688088]  ffff8800d903f698 ffffffff81392ca8 ffff8800d903f6e8 ffffffff81395d32
[   28.688088]  ffff8800dac96000 ffff880000000000 ffff8800d903f980 ffff880119b7e020
[   28.688088]  ffff880119b7e010 0000000000000000 0000000000000010 0000000000000010
[   28.688088] Call Trace:
[   28.688088]  [<ffffffff81392ca8>] scatterwalk_done+0x38/0x40
[   28.688088]  [<ffffffff81392ca8>] scatterwalk_done+0x38/0x40
[   28.688088]  [<ffffffff81395d32>] blkcipher_walk_done+0x182/0x220
[   28.688088]  [<ffffffff813990bf>] crypto_cbc_encrypt+0x15f/0x180
[   28.688088]  [<ffffffff81399780>] ? crypto_aes_set_key+0x30/0x30
[   28.688088]  [<ffffffff8156c40c>] ceph_aes_encrypt2+0x29c/0x2e0
[   28.688088]  [<ffffffff8156d2a3>] ceph_encrypt2+0x93/0xb0
[   28.688088]  [<ffffffff8156d7da>] ceph_x_encrypt+0x4a/0x60
[   28.688088]  [<ffffffff8155b39d>] ? ceph_buffer_new+0x5d/0xf0
[   28.688088]  [<ffffffff8156e837>] ceph_x_build_authorizer.isra.6+0x297/0x360
[   28.688088]  [<ffffffff8112089b>] ? kmem_cache_alloc_trace+0x11b/0x1c0
[   28.688088]  [<ffffffff8156b496>] ? ceph_auth_create_authorizer+0x36/0x80
[   28.688088]  [<ffffffff8156ed83>] ceph_x_create_authorizer+0x63/0xd0
[   28.688088]  [<ffffffff8156b4b4>] ceph_auth_create_authorizer+0x54/0x80
[   28.688088]  [<ffffffff8155f7c0>] get_authorizer+0x80/0xd0
[   28.688088]  [<ffffffff81555a8b>] prepare_write_connect+0x18b/0x2b0
[   28.688088]  [<ffffffff81559289>] try_read+0x1e59/0x1f10

This is because we set up crypto scatterlists as if all buffers were
kmalloc'ed.  Fix it.

Cc: stable@vger.kernel.org
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2014-11-13 22:21:12 +03:00
Yan, Zheng 3231300bb9 ceph: fix flush tid comparision
TID of cap flush ack is 64 bits, but ceph_inode_info::flushing_cap_tid
is only 16 bits. 16 bits should be plenty to let the cap flush updates
pipeline appropriately, but we need to cast in the proper direction when
comparing these differently-sized versions. So downcast the 64-bits one
to 16 bits.

Reflects ceph.git commit a5184cf46a6e867287e24aeb731634828467cd98.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@redhat.com>
2014-11-13 22:19:05 +03:00
Linus Torvalds 3b98ec4eec sound fixes for 3.18-rc5
Things get calming down, now we have only a few fix patches:
 a trivial fix for memory leak in usb-audio, a patch for the new
 HD-audio PCI id, a device-specific mute-LED fix, and a slightly big
 patch to cover the missing COEF inits of various Realtek codecs.
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Merge tag 'sound-3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Things get calming down, now we have only a few fix patches: a trivial
  fix for memory leak in usb-audio, a patch for the new HD-audio PCI id,
  a device-specific mute-LED fix, and a slightly big patch to cover the
  missing COEF inits of various Realtek codecs"

* tag 'sound-3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Add mute LED control for Lenovo Ideapad Z560
  ALSA: hda/realtek - Change EAPD to verb control
  ALSA: usb-audio: Fix memory leak in FTU quirk
  ALSA: hda_intel: Add DeviceIDs for Sunrise Point-LP
2014-11-13 09:57:04 -08:00
Linus Torvalds 2c54396e40 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull SELinux fixlet from James Morris:
 "WARN_ONCE() here will unnecessarily terrify users"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  selinux: convert WARN_ONCE() to printk() in selinux_nlmsg_perm()
2014-11-13 09:46:15 -08:00
Linus Torvalds 911883759f Merge branch 'stable-3.18' of git://git.infradead.org/users/pcmoore/audit
Pull audit fixes from Paul Moore:
 "After he sent the initial audit pull request for 3.18, Eric asked me
  to take over the management of the audit tree, hence this pull request
  to fix a couple of problems with audit.

  As you can see below, the changes are minimal: adding some whitespace
  to a string so userspace parses it correctly, and fixing a problem
  with audit's usage of fsnotify that was causing audit watch rules to
  be lost.  Neither of these patches were very controversial on the
  mailing lists and they fix real problems, getting them into 3.18 would
  be a good thing"

* 'stable-3.18' of git://git.infradead.org/users/pcmoore/audit:
  audit: keep inode pinned
  audit: AUDIT_FEATURE_CHANGE message format missing delimiting space
2014-11-13 09:36:39 -08:00
Linus Torvalds 5a7a662cc6 . stable fix for dm-thin that avoids normal IO racing with discard
. stable fix for a dm-cache related bug in dm-btree walking code that
   results from using very large fast device (e.g. 4T) with a very small
   cache blocksize (e.g. 32K) -- this is a very uncommon configuration
 
 . a couple fixes for dm-raid (one for stable and the other addresses a
   crash in 3.18-rc1 code)
 
 . stable fix for dm-thinp that addresses a very rare dm-bufio bug having
   to do with memory reclaimation (via shrinker) when using dm-thinp
   ontop of loopback devices
 
 . fix a leak in dm-stripe target constructor's error path
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Merge tag 'dm-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - stable fix for dm-thin that avoids normal IO racing with discard

 - stable fix for a dm-cache related bug in dm-btree walking code that
   results from using very large fast device (eg 4T) with a very small
   cache blocksize (eg 32K) -- this is a very uncommon configuration

 - a couple fixes for dm-raid (one for stable and the other addresses a
   crash in 3.18-rc1 code)

 - stable fix for dm-thinp that addresses a very rare dm-bufio bug
   having to do with memory reclaimation (via shrinker) when using
   dm-thinp ontop of loopback devices

 - fix a leak in dm-stripe target constructor's error path

* tag 'dm-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm btree: fix a recursion depth bug in btree walking code
  dm thin: grab a virtual cell before looking up the mapping
  dm raid: fix inaccessible superblocks causing oops in configure_discard_support
  dm raid: ensure superblock's size matches device's logical block size
  dm bufio: change __GFP_IO to __GFP_FS in shrinker callbacks
  dm stripe: fix potential for leak in stripe_ctr error path
2014-11-13 09:19:20 -08:00
James Morris 09c6268927 Merge branch 'stable-3.18' of git://git.infradead.org/users/pcmoore/selinux into for-linus 2014-11-13 21:49:53 +11:00
Takashi Iwai 3542aed748 ALSA: hda - Add mute LED control for Lenovo Ideapad Z560
Lenovo Ideapad Z560 has a mute LED that is controlled via EAPD pin
0x1b on CX20585 codec.  (EAPD bit on corresponds to mute LED on.)
The machine doesn't need other EAPD, so the fixup concentrates on
controlling EAPD 0x1b following the vmaster state (but inversely).

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=665315
Reported-by: Szymon Kowalczyk <fazerxlo@o2.pl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-13 09:12:03 +01:00
Cornelia Huck 65eca3a202 virtio_console: move early VQ enablement
Commit f5866db6 (virtio_console: enable VQs early) tried to make
sure that DRIVER_OK was set when virtio_console started using its
virtqueues. Doing this in add_port(), however, means that we try
to set DRIVER_OK again when when a port is dynamically added after
the probe function is done.

Let's move virtio_device_ready() to the probe function just before
trying to use the virtqueues instead. This is fine as nothing can
fail inbetween.

Reported-by: Thomas Graf <tgraf@suug.ch>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-11-13 09:53:26 +02:00
Florian Fainelli 9dfa9a27b6 net: systemport: fix tx work done in TX napi poll
With commit d75b1ade56 ("net: less interrupt masking in NAPI") napi
repoll is done only when work_done == budget. bcm_sysport_tx_poll()
always returns 0 whether or not we completed the poll quantum.

Fix this by returning either 0 when we did complete the TX ring reclaim,
or budget to trigger a repoll.

Fixes: d75b1ade56 ("net: less interrupt masking in NAPI")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 22:21:33 -05:00
Govindarajulu Varadarajan f41281d02f enic: fix work done in tx napi_poll
With the commit d75b1ade56 ("net: less interrupt masking in NAPI") napi repoll
is done only when work_done == budget. In tx napi poll we always return 0.
So tx napi is not called again and we do not clean up the tx ring.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 22:18:14 -05:00
Joe Perches a768851f94 irda: Fix build failures after IRDA_DEBUG->pr_debug
Fix the build failures that result from the use of pr_debug
without the referenced char * arrays being defined.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 22:01:14 -05:00
Linus Torvalds 04689e749b Two fixes---one of them not exactly a one liner, but things are
calming down on the KVM front at last.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Two fixes --- one of them not exactly a one liner, but things are
  calming down on the KVM front at last"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Fix uninitialized op->type for some immediate values
  KVM: s390: virtio_ccw: remove unused variable
2014-11-12 15:29:28 -08:00
Linus Torvalds 74b60ef779 Xtensa fixes for 3.18-rc5:
- fix umount syscall;
 - fix ISS and xtfpga Kconfig dependencies so that more randconfigs are buildable
 - add seccomp, getrandom, and memfd_create syscalls;
 - add defconfigs for KC705 and SMP LX200;
 - implement pgprot_noncached.
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Merge tag 'xtensa-20141109' of git://github.com/czankel/xtensa-linux

Pull Xtensa fixes from Chris Zankel:
 - fix umount syscall
 - fix ISS and xtfpga Kconfig dependencies so that more randconfigs are
   buildable
 - add seccomp, getrandom, and memfd_create syscalls
 - add defconfigs for KC705 and SMP LX200
 - implement pgprot_noncached

* tag 'xtensa-20141109' of git://github.com/czankel/xtensa-linux:
  xtensa: xtfpga: add lx200 SMP DTS and defconfig
  xtensa: xtfpga: add generic KC705 board config
  xtensa: re-wire umount syscall to sys_oldumount
  xtensa: xtfpga: only select ethoc when ethernet is available
  xtensa: add seccomp, getrandom, and memfd_create syscalls
  xtensa: ISS: add BLOCK dependency to BLK_DEV_SIMDISK
  xtensa: implement pgprot_noncached
  xtensa/uapi: Add definition of TIOC[SG]RS485
2014-11-12 15:21:52 -08:00
Linus Torvalds 0a6cb34f46 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 - stack corruption fix for pseries hwrng driver
 - add missing DMA unmap in caam crypto driver
 - fix NUMA crash in qat crypto driver
 - fix buggy mapping of zero-length associated data in qat crypto driver

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  hwrng: pseries - port to new read API and fix stack corruption
  crypto: caam - fix missing dma unmap on error path
  crypto: qat - Enforce valid numa configuration
  crypto: qat - Prevent dma mapping zero length assoc data
2014-11-12 14:19:47 -08:00
Linus Torvalds 15e5cda9e6 Rabin Vincent found a way that tracing could cause an infinite loop
in the kernel. The splice logic wants a full page from the ring buffer
 but the ring_buffer_wait() returns when there's any data in the ring buffer.
 The splice code would then continue the loop waiting for a full page.
 But if a full page never happens, the splice code will never sleep and
 just continue to loop.
 
 There's another case that Rabin fixed that could loop if there's no memory
 and kmalloc() constantly returns NULL.
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Merge tag 'trace-fixes-v3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Rabin Vincent found a way that tracing could cause an infinite loop in
  the kernel.  The splice logic wants a full page from the ring buffer
  but the ring_buffer_wait() returns when there's any data in the ring
  buffer.  The splice code would then continue the loop waiting for a
  full page.  But if a full page never happens, the splice code will
  never sleep and just continue to loop.

  There's another case that Rabin fixed that could loop if there's no
  memory and kmalloc() constantly returns NULL"

* tag 'trace-fixes-v3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Do not risk busy looping in buffer splice
  tracing: Do not busy wait in buffer splice
2014-11-12 14:02:29 -08:00
Linus Torvalds 9d1f9c73df Nasty, stupid bug, and I've suddenly had two reports.
Thanks,
 Rusty.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull kernel argument parsing fix from Rusty Russell:
 "Nasty, stupid bug, and I've suddenly had two reports"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  param: fix crash on bad kernel arguments
2014-11-12 13:53:55 -08:00
Haiyang Zhang 4d3c9d37f7 hyperv: Add processing of MTU reduced by the host
If the host uses packet encapsulation feature, the MTU may be reduced by the
host due to headroom reservation for encapsulation. This patch handles this
new MTU value.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 16:21:36 -05:00
Linus Torvalds de34b81bc2 Fix PCI device ID in fam15h_power driver
Fix suspend/resume behavior in pwm-fan driver
 Reduce logging noise created by ibmpowernv driver
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Merge tag 'hwmon-for-linus-v3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 - fix PCI device ID in fam15h_power driver
 - fix suspend/resume behavior in pwm-fan driver
 - reduce logging noise created by ibmpowernv driver

* tag 'hwmon-for-linus-v3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (fam15h_power) Fix NB device ID for F16h M30h
  hwmon: (pwm-fan) Fix suspend/resume behavior
  hwmon: (ibmpowernv) Quieten when probing finds no device
2014-11-12 13:18:20 -08:00
Linus Torvalds 999f81dd19 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal driver fixes from Eduardo Valentin:
 "This week we have few fixes:
   - fix in IMX thermal driver to do the correct loading sequence with
     CPUfreq
   - fix in Exynos related to TMU_CONTROL offset in Exynos5260
   - fix the unit conversion in int3403"

[ Still pulling from Eduardo as Rui Zhang is on a business trip and has
  troubles with his machine ]

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  imx: thermal: imx_get_temp might be called before sensor clock is prepared
  thermal: exynos: use correct offset for TMU_CONTROL register on Exynos5260
  thermal: imx: correct driver load sequence for cpu cooling
  Thermal/int3403: Fix thermal hysteresis unit conversion
2014-11-12 13:15:18 -08:00
Richard Guy Briggs d950f84c1c selinux: convert WARN_ONCE() to printk() in selinux_nlmsg_perm()
Convert WARN_ONCE() to printk() in selinux_nlmsg_perm().

After conversion from audit_log() in commit e173fb26, WARN_ONCE() was
deemed too alarmist, so switch it to printk().

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: Changed to printk(WARNING) so we catch all of the different
 invalid netlink messages.  In Richard's defense, he brought this
 point up earlier, but I didn't understand his point at the time.]
Signed-off-by: Paul Moore <pmoore@redhat.com>
2014-11-12 16:14:02 -05:00
Linus Torvalds c921220115 - Register offset fix for stmpe
- Eradicate build warning when !PM in rtsx_pcr
  - Fix device ID collision when multiple boards are connected in viperboard
  - Use correct Regmap handle - fixing unhanded IRQs in max77693
  - Unmask MUIC IRQs in max77693
  - Clear VBUS & CHG bits so board doesn't reboot instead of poweroff in twl4030
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Merge tag 'mfd-fixes-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD fixes from Lee Jones:
 - register offset fix for stmpe
 - eradicate build warning when !PM in rtsx_pcr
 - fix device ID collision when multiple boards are connected in
   viperboard
 - use correct Regmap handle - fixing unhanded IRQs in max77693
 - unmask MUIC IRQs in max77693
 - clear VBUS & CHG bits so board doesn't reboot instead of poweroff in
   twl4030

* tag 'mfd-fixes-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: twl4030-power: Fix poweroff with PM configuration enabled
  mfd: max77693: Fix always masked MUIC interrupts
  mfd: max77693: Use proper regmap for handling MUIC interrupts
  mfd: viperboard: Fix platform-device id collision
  mfd: rtsx: Fix build warnings for !PM
  mfd: stmpe: Fix STMPE24xx GPMR LSB
2014-11-12 13:13:24 -08:00
Linus Torvalds b3cf93b356 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "Radeon and i915 fixes.

  I probably should have sent these earlier, but nothing too urgent in
  them:

   - i915:
        blackscreen and corruption fixes
   - radeon:
        oops, locking and stability"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: add missing crtc unlock when setting up the MC
  drm/radeon: use gart for DMA IB tests
  drm/radeon: make sure mode init is complete in bandwidth_update
  drm/radeon: set correct CE ram size for CIK
  drm/i915: safeguard against too high minimum brightness
  drm/i915: vlv: fix gunit HW state corruption during S4 suspend
  drm/i915: Disable caches for Global GTT.
2014-11-12 12:37:45 -08:00
Hiroaki SHIMODA 6251edd932 netlink: Properly unbind in error conditions.
Even if netlink_kernel_cfg::unbind is implemented the unbind() method is
not called, because cfg->unbind is omitted in __netlink_kernel_create().
And fix wrong argument of test_bit() and off by one problem.

At this point, no unbind() method is implemented, so there is no real
issue.

Fixes: 4f52090052 ("netlink: have netlink per-protocol bind function return an error code.")
Signed-off-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Cc: Richard Guy Briggs <rgb@redhat.com>
Acked-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 15:12:06 -05:00
Lendacky, Thomas 5226cfc500 amd-xgbe: Fix sparse endian warnings
Change the types of the descriptor entries in the xgbe_ring_desc struct
from u32 to __le32 to fix endian warnings issued by sparse.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 15:10:23 -05:00
Jisheng Zhang 824ab78215 net: pxa168_eth: move SET_NETDEV_DEV a bit earlier
This is to ensure the net_device's dev.parent is set before we used it
in dma_zalloc_coherent() from init_hash_table().

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 15:07:15 -05:00
Richard Cochran cca04b2854 net: ptp: fix time stamp matching logic for VLAN packets.
Commit ae5c6c6d "ptp: Classify ptp over ip over vlan packets" changed the
code in two drivers that matches time stamps with PTP frames, with the goal
of allowing VLAN tagged PTP packets to receive hardware time stamps.

However, that commit failed to account for the VLAN header when parsing
IPv4 packets. This patch fixes those two drivers to correctly match VLAN
tagged IPv4/UDP PTP messages with their time stamps.

This patch should also be applied to v3.17.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 15:06:17 -05:00
Hariprasad Shenai c94f8f4156 cxgb4: Fix static checker warning
Fix static checker warning that got introduced in commit e2ac962895
("cxgb4: Cleanup macros so they follow the same style and look consistent, part
2") due to accidental checkin of bogus line.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 15:05:26 -05:00
Tom Herbert a8c5f90fb5 ip_tunnel: Ops registration for secondary encap (fou, gue)
Instead of calling fou and gue functions directly from ip_tunnel
use ops for these that were previously registered. This patch adds the
logic to add and remove encapsulation operations for ip_tunnel,
and modified fou (and gue) to register with ip_tunnels.

This patch also addresses a circular dependency between ip_tunnel
and fou that was causing link errors when CONFIG_NET_IP_TUNNEL=y
and CONFIG_NET_FOU=m. References to fou an gue have been removed from
ip_tunnel.c

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 15:01:35 -05:00
Anish Bhatt ee7bc3cdc2 cxgb4 : dcb open-lldp interop fixes
* In LLD_MANAGED mode, traffic classes were being returned in reverse order to
  lldp agent.
* Priotype of strict is no longer the default returned.
* Change behaviour of getdcbx() based on discussions on lldp-devel

These were missed as there was no working fetch interface for open-lldp when
running in LLD_MANAGED mode till now.

Fixes: 76bcb31efc ("cxgb4 : Add DCBx support codebase and dcbnl_ops")

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 15:00:07 -05:00
Joe Perches 4243cdc2c1 udp: Neaten function pointer calls and add braces
Standardize function pointer uses.

Convert calling style from:
	(*foo)(args...);
to:
	foo(args...);

Other miscellanea:

o Add braces around loops with single ifs on multiple lines
o Realign arguments around these functions
o Invert logic in if to return immediately.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 14:51:59 -05:00
David S. Miller feed1a9660 Merge branch 'r8152-next'
Hayes Wang says:

====================
Code adjustment

v3:
 Remove the test_bit for patch #2.

v2:
 Correct the spelling error for the comment of patch #3.

v1:
Adjust some codes to make them more reasonable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 14:49:15 -05:00
hayeswang a1f83feecc r8152: check RTL8152_UNPLUG and netif_running before autoresume
If the device is unplugged or !netif_running(), the workqueue
doesn't need to wake the device, and could return directly.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 14:49:08 -05:00
hayeswang 9451a11c18 r8152: clear the flag of SCHEDULE_TASKLET in tasklet
Clear the flag of SCHEDULE_TASKLET in bottom_half() to avoid
re-schedule the tasklet again by workqueue.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 14:49:08 -05:00
hayeswang 0c29dde43c r8152: remove the duplicate init for the list of rx_done
The INIT_LIST_HEAD(&tp->rx_done) would be done in rtl_start_rx(),
so remove the unnecessary one in alloc_all_mem().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 14:49:08 -05:00
David S. Miller d3f15dbd42 Merge branch 'bcm7xxx-next'
Florian Fainelli says:

====================
net: phy: bcm7xxx: workaround updates

This patch series contains some updates to the Broadcom BCM7xxx internal
PHY driver, including:

- removing an annonying print that would appear during interface up/down and
  suspend/resume cycles
- drop a workaround sequence for a non-production PHY revision
- add new workarounds for the latest and greatest PHY devices found out there
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 13:58:10 -05:00
Florian Fainelli 0c2fdc25ae net: phy: bcm7xxx: add workaround for PHY revision E0 and F0
PHY revisions E0 and F0 share the same shorter workaround initialization
sequence. Dedicate a special function for these two PHY revisions to
perform the needed workaround sequence.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 13:58:07 -05:00
Florian Fainelli a490631fa6 net: phy: bcm7xxx: add PHY revision D0 workaround sequence
PHY revision D0 requires a specific workaround sequence which needs to
be applied to get the HW to behave properly in all corner cases
conditions. Do this based on the revision we just read out of the HW
using a specific function.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 13:58:06 -05:00
Florian Fainelli 9c41f2baa9 net: phy: bcm7xxx: introduce r_rc_cal_reset helper
This function performs a R/RC calibration reset and will start being
used by more than one function in the next patches, create a helper
function to factor code.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-12 13:58:06 -05:00