Commit Graph

241907 Commits

Author SHA1 Message Date
Stefan Wahren
93ecd2607f net: qualcomm: Fix dependency
This patch removes the dependency of the VENDOR entry and fixes
the QCA7000 one.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-11 18:12:32 -05:00
Daniel Borkmann
48eb5b9c3d ixgbe: phy: fix uninitialized status in ixgbe_setup_phy_link_tnx
Status variable is never initialized, can carry an arbitrary value
on the stack and thus may let the function fail.

Fixes: e90dd26456 ("ixgbe: Make return values more direct")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-11 16:31:54 -05:00
Brian Hill
79ce0477ff net: phy: Correctly handle MII ioctl which changes autonegotiation.
When advertised capabilities are changed with mii-tool, such as:
mii-tool -A 10baseT
the existing handler has two errors.

- An actual PHY register value is provided by mii-tool, and this
  must be mapped to internal state with mii_adv_to_ethtool_adv_t().
- The PHY state machine needs to be told that autonegotiation has
  again been performed.  If not, the MAC will not be notified of
  the new link speed and duplex, resulting in a possible config
  mismatch.

Signed-off-by: Brian Hill <Brian@houston-radar.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-11 16:21:26 -05:00
Takashi Iwai
5748eb8f8e net: ppp: Don't call bpf_prog_create() in ppp_lock
In ppp_ioctl(), bpf_prog_create() is called inside ppp_lock, which
eventually calls vmalloc() and hits BUG_ON() in vmalloc.c.  This patch
works around the problem by moving the allocation outside the lock.

The bug was revealed by the recent change in net/core/filter.c, as it
allocates via vmalloc() instead of kmalloc() now.

Reported-and-tested-by: Stefan Seyfried <stefan.seyfried@googlemail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-11 15:15:03 -05:00
Or Gerlitz
f4a1edd561 net/mlx4_en: Advertize encapsulation offloads features only when VXLAN tunnel is set
Currenly we only support Large-Send and TX checksum offloads for
encapsulated traffic of type VXLAN. We must make sure to advertize
these offloads up to the stack only when VXLAN tunnel is set.

Failing to do so, would mislead the the networking stack to assume
that the driver can offload the internal TX checksum for GRE packets
and other buggy schemes.

Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-11 13:24:45 -05:00
Anish Bhatt
a815286b94 cxgb4 : Fix bug in DCB app deletion
Unlike CEE, IEEE has a bespoke app delete call and does not rely on priority
for app deletion

Fixes : 2376c879b8 ('cxgb4 : Improve handling of DCB negotiation or loss
 thereof')

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 15:13:53 -05:00
Jesse Gross
cfdf1e1ba5 udptunnel: Add SKB_GSO_UDP_TUNNEL during gro_complete.
When doing GRO processing for UDP tunnels, we never add
SKB_GSO_UDP_TUNNEL to gso_type - only the type of the inner protocol
is added (such as SKB_GSO_TCPV4). The result is that if the packet is
later resegmented we will do GSO but not treat it as a tunnel. This
results in UDP fragmentation of the outer header instead of (i.e.) TCP
segmentation of the inner header as was originally on the wire.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 15:09:45 -05:00
Hariprasad Shenai
50d21a662d cxgb4vf: FL Starvation Threshold needs to be larger than the SGE's Egress Congestion Threshold
Free List Starvation Threshold needs to be larger than the SGE's Egress
Congestion Threshold or we'll end up in a mutual stall where the driver waits
for Ingress Packets to drive replacing Free List Pointers and the SGE waits for
Free List Pointers before pushing Ingress Packets to the host.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 14:15:03 -05:00
Hariprasad Shenai
ce8f407a3c cxgb4/cxgb4vf: For T5 use Packing and Padding Boundaries for SGE DMA transfers
T5 introduces the ability to have separate Packing and Padding Boundaries
for SGE DMA transfers from the chip to Host Memory. This change set takes
advantage of that to set up a smaller Padding Boundary to conserve PCI Link
and Memory Bandwidth with T5.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 14:15:03 -05:00
Hariprasad Shenai
65f6ecc93e cxgb4vf: Move fl_starv_thres into adapter->sge data structure
Move fl_starv_thres into adapter->sge data structure since it
_could_ be different from adapter to adapter.  Also move other per-adapter
SGE values which had been treated as driver globals into adapter->sge.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-10 14:15:03 -05:00
Charles Keepax
436c2a5036 asix: Do full reset during ax88772_bind
commit 3cc81d85ee ("asix: Don't reset PHY on if_up for ASIX 88772")
causes the ethernet on Arndale to no longer function. This appears to
be because the Arndale ethernet requires a full reset before it will
function correctly, however simply reverting the above patch causes
problems with ethtool settings getting reset.

It seems the problem is that the ethernet is not properly reset during
bind, and indeed the code in ax88772_bind that resets the device is a
very small subset of the actual ax88772_reset function. This patch uses
ax88772_reset in place of the existing reset code in ax88772_bind which
removes some code duplication and fixes the ethernet on Arndale.

It is still possible that the original patch causes some issues with
suspend and resume but that seems like a separate issue and I haven't
had a chance to test that yet.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Tested-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07 15:30:03 -05:00
Lothar Waßmann
1310b544e5 net: fec: fix regression on i.MX28 introduced by rx_copybreak support
commit 1b7bde6d65 ("net: fec: implement rx_copybreak to improve rx performance")
introduced a regression for i.MX28. The swap_buffer() function doing
the endian conversion of the received data on i.MX28 may access memory
beyond the actual packet size in the DMA buffer. fec_enet_copybreak()
does not copy those bytes, so that the last bytes of a packet may be
filled with invalid data after swapping.
This will likely lead to checksum errors on received packets.
E.g. when trying to mount an NFS rootfs:
UDP: bad checksum. From 192.168.1.225:111 to 192.168.100.73:44662 ulen 36

Do the byte swapping and copying to the new skb in one go if
necessary.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07 12:08:58 -05:00
David S. Miller
1f5623106f Merge tag 'master-2014-11-04' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
pull request: wireless 2014-11-06

Please pull this batch of fixes intended for the 3.18 stream...

For the mac80211 bits, Johannes says:

"This contains another small set of fixes for 3.18, these are all
over the place and most of the bugs are old, one even dates back
to the original mac80211 we merged into the kernel."

For the iwlwifi bits, Emmanuel says:

"I fix here two issues that are related to the firmware
loading flow. A user reported that he couldn't load the
driver because the rfkill line was pulled up while we
were running the calibrations. This was happening while
booting the system: systemd was restoring the "disable
wifi settings" and that raised an RFKILL interrupt during
the calibration. Our driver didn't handle that properly
and this is now fixed."

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06 22:15:20 -05:00
Manish Chopra
9d01412ae7 netxen: Fix link event handling.
o Poll for the link events only if firmware doesn't have capability
  to notify the driver for the link events.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06 16:43:29 -05:00
Govindarajulu Varadarajan
f6b7734ba7 enic: update desc properly in rx_copybreak
When we reuse the rx buffer, we need to update the desc. If not hardware sees
stale value.

In the following crash, when mtu is changed, hardware sees old rx buffer value
and crashes on skb_put.

Fix this by using enic_queue_rq_desc helper function which updates the necessary
desc.

[   64.657376] skbuff: skb_over_panic: text:ffffffffa041f55d len:9010 put:9010 head:ffff8800d3ca9fc0 data:ffff8800d3caa000 tail:0x2372 end:0x640 dev:enp0s3
[   64.659965] ------------[ cut here ]------------
[   64.661322] kernel BUG at net/core/skbuff.c:100!
[   64.662644] invalid opcode: 0000 [#1] PREEMPT SMP
[   64.664001] Modules linked in: rpcsec_gss_krb5 auth_rpcgss oid_registry nfsv4 cirrus ttm drm_kms_helper drm enic psmouse microcode evdev serio_raw syscopyarea sysfillrect sysimgblt i2c_piix4 i2c_core pcspkr nfs lockd grace sunrpc fscache ext4 crc16 mbcache jbd2 sd_mod ata_generic virtio_balloon ata_piix libata uhci_hcd virtio_pci virtio_ring usbcore usb_common virtio scsi_mod
[   64.664834] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W      3.17.0-netnext-10335-g942396b-dirty #273
[   64.664834] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.664834] task: ffffffff81a1d580 ti: ffffffff81a00000 task.ti: ffffffff81a00000
[   64.664834] RIP: 0010:[<ffffffff81392cf1>]  [<ffffffff81392cf1>] skb_panic+0x61/0x70
[   64.664834] RSP: 0018:ffff880210603d48  EFLAGS: 00010292
[   64.664834] RAX: 000000000000008c RBX: ffff88020b0f6930 RCX: 0000000000000000
[   64.664834] RDX: 000000000000008c RSI: ffffffff8178b288 RDI: 00000000ffffffff
[   64.664834] RBP: ffff880210603d68 R08: 0000000000000001 R09: 0000000000000001
[   64.664834] R10: 00000000000005ce R11: 0000000000000001 R12: ffff88020b1f0b40
[   64.664834] R13: 000000000000a332 R14: ffff880209a1a000 R15: 0000000000000001
[   64.664834] FS:  0000000000000000(0000) GS:ffff880210600000(0000) knlGS:0000000000000000
[   64.664834] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   64.664834] CR2: 00007f6752935e48 CR3: 0000000035743000 CR4: 00000000000006f0
[   64.664834] Stack:
[   64.664834]  ffff8800d3caa000 0000000000002372 0000000000000640 ffff88020b1f0000
[   64.664834]  ffff880210603d78 ffffffff81392d54 ffff880210603e08 ffffffffa041f55d
[   64.664834]  0000000000000296 ffffffff00000000 00008e7e00008e7e ffff880200002332
[   64.664834] Call Trace:
[   64.664834]  <IRQ>
[   64.664834]
[   64.664834]  [<ffffffff81392d54>] skb_put+0x54/0x60
[   64.664834]  [<ffffffffa041f55d>] enic_rq_service.constprop.47+0x3ad/0x730 [enic]
[   64.664834]  [<ffffffffa041fa79>] enic_poll_msix_rq+0x199/0x370 [enic]
[   64.664834]  [<ffffffff813a5499>] net_rx_action+0x139/0x210
[   64.664834]  [<ffffffff81290db3>] ? __this_cpu_preempt_check+0x13/0x20
[   64.664834]  [<ffffffff8106110e>] __do_softirq+0x14e/0x280
[   64.664834]  [<ffffffff8106152e>] irq_exit+0x8e/0xb0
[   64.664834]  [<ffffffff8100fd21>] do_IRQ+0x61/0x100
[   64.664834]  [<ffffffff814a2bf2>] common_interrupt+0x72/0x72

fixes: a03bb56e67 ("enic: implement rx_copybreak")
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06 16:42:04 -05:00
Govindarajulu Varadarajan
44aa91ab2b enic: handle error condition properly in enic_rq_indicate_buf
In case of error in rx path, we free the buf->os_buf but we do not make it NULL.
In next iteration we use the skb which is already freed. This causes the
following crash.

[  886.154772] general protection fault: 0000 [#1] PREEMPT SMP
[  886.154851] Modules linked in: rpcsec_gss_krb5 auth_rpcgss oid_registry nfsv4 microcode evdev cirrus ttm drm_kms_helper drm enic syscopyarea sysfillrect sysimgblt psmouse i2c_piix4 serio_raw pcspkr i2c_core nfs lockd grace sunrpc fscache ext4 crc16 mbcache jbd2 sd_mod crc_t10dif crct10dif_common ata_generic ata_piix virtio_balloon libata scsi_mod uhci_hcd usbcore virtio_pci virtio_ring virtio usb_common
[  886.155199] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W      3.17.0-netnext-05668-g876bc7f #272
[  886.155263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  886.155304] task: ffffffff81a1d580 ti: ffffffff81a00000 task.ti: ffffffff81a00000
[  886.155356] RIP: 0010:[<ffffffff81384030>]  [<ffffffff81384030>] kfree_skb_list+0x10/0x30
[  886.155418] RSP: 0018:ffff880210603d48  EFLAGS: 00010206
[  886.155456] RAX: 0000000000000020 RBX: 0000000000000000 RCX: 0000000000000000
[  886.155504] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 004500084e000017
[  886.155553] RBP: ffff880210603d50 R08: 00000000fe13d1b6 R09: 0000000000000001
[  886.155601] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880209ff2f00
[  886.155650] R13: ffff88020ac0fe40 R14: ffff880209ff2f00 R15: ffff8800da8e3a80
[  886.155699] FS:  0000000000000000(0000) GS:ffff880210600000(0000) knlGS:0000000000000000
[  886.155774] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  886.155814] CR2: 00007f0e0c925000 CR3: 0000000035e8b000 CR4: 00000000000006f0
[  886.155865] Stack:
[  886.155882]  0000000000000000 ffff880210603d78 ffffffff81383f79 ffff880209ff2f00
[  886.155942]  ffff88020b0c0b40 000000000000c000 ffff880210603d90 ffffffff81383faf
[  886.156001]  ffff880209ff2f00 ffff880210603da8 ffffffff8138406d ffff88020b1b08c0
[  886.156061] Call Trace:
[  886.156080]  <IRQ>
[  886.156095]
[  886.156112]  [<ffffffff81383f79>] skb_release_data+0xa9/0xc0
[  886.157656]  [<ffffffff81383faf>] skb_release_all+0x1f/0x30
[  886.159195]  [<ffffffff8138406d>] consume_skb+0x1d/0x40
[  886.160719]  [<ffffffff813942e5>] __dev_kfree_skb_any+0x35/0x40
[  886.162224]  [<ffffffffa02dc1d5>] enic_rq_service.constprop.47+0xe5/0x5a0 [enic]
[  886.163756]  [<ffffffffa02dc829>] enic_poll_msix_rq+0x199/0x370 [enic]
[  886.164730]  [<ffffffff81397e29>] net_rx_action+0x139/0x210
[  886.164730]  [<ffffffff8105fb2e>] __do_softirq+0x14e/0x280
[  886.164730]  [<ffffffff8105ff2e>] irq_exit+0x8e/0xb0
[  886.164730]  [<ffffffff8100fc1d>] do_IRQ+0x5d/0x100
[  886.164730]  [<ffffffff81496832>] common_interrupt+0x72/0x72

fixes: a03bb56e67 ("enic: implement rx_copybreak")
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06 16:42:04 -05:00
Eli Cohen
364d1798ef net/mlx5_core: Fix race on driver load
When events arrive at driver load, the event handler gets called even before
the spinlock and list are initialized. Fix this by moving the initialization
before EQs creation.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06 16:40:36 -05:00
Eli Cohen
a158906dd7 net/mlx5_core: Fix race in create EQ
After the EQ is created, it can possibly generate interrupts and the interrupt
handler is referencing eq->dev. It is therefore required to set eq->dev before
calling request_irq() so if an event is generated before request_irq() returns,
we will have a valid eq->dev field.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06 16:40:35 -05:00
Mugunthan V N
4484d0524e drivers: net: cpsw: remove cpsw_ale_stop from cpsw_ale_destroy
when cpsw is build as modulea and simple insert and removal of module
creates a deadlock, due to delete timer. the timer is created and destroyed
in cpsw_ale_start and cpsw_ale_stop which are from device open and close.

root@am437x-evm:~# modprobe -r ti_cpsw
[  158.505333] INFO: trying to register non-static key.
[  158.510623] the code is fine but needs lockdep annotation.
[  158.516448] turning off the locking correctness validator.
[  158.522282] CPU: 0 PID: 1339 Comm: modprobe Not tainted 3.14.23-00445-gd41c88f #44
[  158.530359] [<c0015380>] (unwind_backtrace) from [<c0012088>] (show_stack+0x10/0x14)
[  158.538603] [<c0012088>] (show_stack) from [<c054ad70>] (dump_stack+0x78/0x94)
[  158.546295] [<c054ad70>] (dump_stack) from [<c0088008>] (__lock_acquire+0x176c/0x1b74)
[  158.554711] [<c0088008>] (__lock_acquire) from [<c0088944>] (lock_acquire+0x9c/0x104)
[  158.563043] [<c0088944>] (lock_acquire) from [<c004e520>] (del_timer_sync+0x44/0xd8)
[  158.571289] [<c004e520>] (del_timer_sync) from [<bf2eac1c>] (cpsw_ale_destroy+0x10/0x3c [ti_cpsw])
[  158.580821] [<bf2eac1c>] (cpsw_ale_destroy [ti_cpsw]) from [<bf2eb268>] (cpsw_remove+0x30/0xa0 [ti_cpsw])
[  158.591000] [<bf2eb268>] (cpsw_remove [ti_cpsw]) from [<c035ef44>] (platform_drv_remove+0x18/0x1c)
[  158.600527] [<c035ef44>] (platform_drv_remove) from [<c035d8bc>] (__device_release_driver+0x70/0xc8)
[  158.610236] [<c035d8bc>] (__device_release_driver) from [<c035e0d4>] (driver_detach+0xb4/0xb8)
[  158.619386] [<c035e0d4>] (driver_detach) from [<c035d6e4>] (bus_remove_driver+0x4c/0x90)
[  158.627988] [<c035d6e4>] (bus_remove_driver) from [<c00af2a8>] (SyS_delete_module+0x10c/0x198)
[  158.637144] [<c00af2a8>] (SyS_delete_module) from [<c000e580>] (ret_fast_syscall+0x0/0x48)
[  179.524727] INFO: rcu_sched detected stalls on CPUs/tasks: {} (detected by 0, t=2102 jiffies, g=1487, c=1486, q=6)
[  179.535741] INFO: Stall ended before state dump start

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06 14:58:04 -05:00
Karl Beldan
2c2a9cbd64 net: mv643xx_eth: reclaim TX skbs only when released by the HW
ATM, txq_reclaim will dequeue and free an skb for each tx desc released
by the hw that has TX_LAST_DESC set. However, in case of TSO, each
hw desc embedding the last part of a segment has TX_LAST_DESC set,
losing the one-to-one 'last skb frag'/'TX_LAST_DESC set' correspondance,
which causes data corruption.

Fix this by checking TX_ENABLE_INTERRUPT instead of TX_LAST_DESC, and
warn when trying to dequeue from an empty txq (which can be symptomatic
of releasing skbs prematurely).

Fixes: 3ae8f4e0b9 ('net: mv643xx_eth: Implement software TSO')
Reported-by: Slawomir Gajzner <slawomir.gajzner@gmail.com>
Reported-by: Julien D'Ascenzio <jdascenzio@yahoo.fr>
Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Cc: Ian Campbell <ijc@hellion.org.uk>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06 14:54:39 -05:00
Giuseppe CAVALLARO
777da230c5 stmmac: fix atomicity in pm routines
This patch is to fix the atomicity when suspend and resume the
driver. The clk api have been changed (as reported by Hao Liang)
and the skb allocation is done out of the hw setup function and
taking care about the GFP flags.

Reported-by: Hao Liang <hliang1025@gmail.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: Hao Liang <hliang1025@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-05 16:22:57 -05:00
Giuseppe CAVALLARO
4741cf9cec stmmac: fix concurrency in eee initialization.
This patch aims to fix the concurrency in eee initialization
inside the stmmac driver and related warnings when enable
DEBUG_ATOMIC_SLEEP.

Prior this patch, the stmmac_eee_init could be called in several places
as shown below:

stmmac_open  stmmac_resume         PHY Layer
    |            |                     |
  stmmac_hw_setup           stmmac_adjust_link
    |                                  |           stmmac ethtool
    |__________________________|______________|
                                       |
                                 stmmac_eee_init

The patch removes the stmmac_eee_init call inside the stmmac_hw_setup
that is unnecessary. It is sufficient to call it in the adjust_link to
always guarantee that EEE is always configured at mac level too.

Fixing the lock protection now it is covered another case (not
considered before). The stmmac_eee_init could be called by the ethtool
so critical sections must be protected inside this function too.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-05 16:22:57 -05:00
Giuseppe CAVALLARO
b9d73704aa stmmac: fix lock in stmmac_set_rx_mode
When compile with CONFIG_PROVE_LOCKING the following warnings happen:

[snip]

    HARDIRQ-ON-W at:
                        [<c0480c1c>] _raw_spin_lock+0x3c/0x4c
                        [<c02c2828>] stmmac_set_rx_mode+0x18/0x3c
                        [<c038b2cc>] dev_set_rx_mode+0x1c/0x28
                        [<c038b38c>] __dev_open+0xb4/0xf8
                        [<c038b5a8>] __dev_change_flags+0x94/0x128
                        [<c038b6a8>] dev_change_flags+0x10/0x48
                        [<c062afe0>] ip_auto_config+0x1d4/0x1084
                        [<c000873c>] do_one_initcall+0x108/0x15c
                        [<c060ec50>] kernel_init_freeable+0x1a8/0x248
                        [<c0472cc0>] kernel_init+0x8/0x160
                        [<c000dfc8>] ret_from_fork+0x14/0x2c
     INITIAL USE at:
                       [<c0480c1c>] _raw_spin_lock+0x3c/0x4c
                       [<c02c2828>] stmmac_set_rx_mode+0x18/0x3c
                       [<c038b2cc>] dev_set_rx_mode+0x1c/0x28
                       [<c038b38c>] __dev_open+0xb4/0xf8
                       [<c038b5a8>] __dev_change_flags+0x94/0x128
                       [<c038b6a8>] dev_change_flags+0x10/0x48
                       [<c062afe0>] ip_auto_config+0x1d4/0x1084
                       [<c000873c>] do_one_initcall+0x108/0x15c
                       [<c060ec50>] kernel_init_freeable+0x1a8/0x248
                       [<c0472cc0>] kernel_init+0x8/0x160
                       [<c000dfc8>] ret_from_fork+0x14/0x2c

so the patch just removes the lock protection in the stmmac_set_rx_mode

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Emilio Lopez <emilio@elopez.com.ar>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-05 16:22:56 -05:00
Fabrice Gasnier
758a0ab59b stmmac: release tx lock, in case of dma mapping error.
Add missing spin_unlock when tx frames gets dropped.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-05 16:22:56 -05:00
Fabrice Gasnier
16ee817e43 stmmac: fix stmmac_tx_avail should be called with TX locked
stmmac_tx_avail() may lie if used unprotected. It's using cur_tx
and dirty_tx index. These index may be already in use by tx_clean
when entering xmit routine. So, this should be called locked.

This can cause transmit queue to be stuck, with following message:
NETDEV WATCHDOG: eth0 (stmmaceth): transmit queue 0 timed out

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-05 16:22:56 -05:00
Chen Gang
b994ca6b67 drivers: net: ethernet: xilinx: xilinx_emaclite: revert the original commit "1db3ddff1602edf2390b7667dcbaa0f71512e3ea"
Microblaze is a fpga soft core, it can be customized easily, which may
cause many various hardware version strings.

So the original fix patch based on hard-coded compatible version strings
is not a good idea (although it is correct for current issue). For it,
there will be a new solving way soon (which based on the device tree).

The original issue is related with qemu, so can only change the hardware
version string in qemu for it, then keep the original driver no touch (
qemu is for virtualization which has much easier life than real world).

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-05 16:00:51 -05:00
Iyappan Subramanian
bdd330f050 drivers: net: xgene: fix: Use separate resources
This patch fixes the following kernel crash during SGMII based 1GbE probe.

	BUG: Bad page state in process swapper/0  pfn:40fe6ad
	page:ffffffbee37a75d8 count:-1 mapcount:0 mapping:          (null) index:0x0
	flags: 0x0()
	page dumped because: nonzero _count
	Modules linked in:
	CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.17.0+ #7
	Call trace:
	[<ffffffc000087fa0>] dump_backtrace+0x0/0x12c
	[<ffffffc0000880dc>] show_stack+0x10/0x1c
	[<ffffffc0004d981c>] dump_stack+0x74/0xc4
	[<ffffffc00012fe70>] bad_page+0xd8/0x128
	[<ffffffc000133000>] get_page_from_freelist+0x4b8/0x640
	[<ffffffc000133260>] __alloc_pages_nodemask+0xd8/0x834
	[<ffffffc0004194f8>] __netdev_alloc_frag+0x124/0x1b8
	[<ffffffc00041bfdc>] __netdev_alloc_skb+0x90/0x10c
	[<ffffffc00039ff30>] xgene_enet_refill_bufpool+0x11c/0x280
	[<ffffffc0003a11a4>] xgene_enet_process_ring+0x168/0x340
	[<ffffffc0003a1498>] xgene_enet_napi+0x1c/0x50
	[<ffffffc00042b454>] net_rx_action+0xc8/0x18c
	[<ffffffc0000b0880>] __do_softirq+0x114/0x24c
	[<ffffffc0000b0c34>] irq_exit+0x94/0xc8
	[<ffffffc0000e68a0>] __handle_domain_irq+0x8c/0xf4
	[<ffffffc000081288>] gic_handle_irq+0x30/0x7c

This was due to hardware resource sharing conflict with the firmware. This
patch fixes this crash by using resources (descriptor ring, prefetch buffer)
that are not shared.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-04 17:08:42 -05:00
Iyappan Subramanian
c3f4465d27 drivers: net: xgene: Backward compatibility with older firmware
This patch adds support when used with older firmware (<= 1.13.28).

- Added xgene_ring_mgr_init() to check whether ring manager is initialized
- Calling xgene_ring_mgr_init() from xgene_port_ops.reset()
- To handle errors, changed the return type of xgene_port_ops.reset()

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-04 17:08:42 -05:00
John W. Linville
0c9a67c8f1 Merge tag 'mac80211-for-john-2014-11-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg <johannes@sipsolutions.net> says:

"This contains another small set of fixes for 3.18, these are all
over the place and most of the bugs are old, one even dates back
to the original mac80211 we merged into the kernel."

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-04 15:56:33 -05:00
John W. Linville
c00ed46d58 Merge tag 'iwlwifi-for-john-2014-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
Emmanuel Grumbach <egrumbach@gmail.com> says:

"I fix here two issues that are related to the firmware
loading flow. A user reported that he couldn't load the
driver because the rfkill line was pulled up while we
were running the calibrations. This was happening while
booting the system: systemd was restoring the "disable
wifi settings" and that raised an RFKILL interrupt during
the calibration. Our driver didn't handle that properly
and this is now fixed."

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-04 15:46:15 -05:00
Edward Cree
9fd3d3a430 sfc: don't BUG_ON efx->max_channels == 0 in probe
efx_ef10_probe() was BUGging out if the BAR2 size was 0.  This is
 unnecessarily violent; instead we should just fail to probe the device.
Kept a WARN_ON as this problem indicates a broken or misconfigured NIC.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-03 15:57:50 -05:00
Herbert Xu
3ce9b20f19 macvtap: Fix csum_start when VLAN tags are present
When VLAN is in use in macvtap_put_user, we end up setting
csum_start to the wrong place.  The result is that the whoever
ends up doing the checksum setting will corrupt the packet instead
of writing the checksum to the expected location, usually this
means writing the checksum with an offset of -4.

This patch fixes this by adjusting csum_start when VLAN tags are
detected.

Fixes: f09e2249c4 ("macvtap: restore vlan header on user read")
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Cheers,
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-03 14:52:20 -05:00
Nimrod Andy
f4c4a4e068 net: fec: fix suspend broken on multiple MACs sillicons
On i.MX6SX sdb platform, there has two same enet MACs, after system up,
just eth0 is up, and then do suspend/resume test:

[   50.437967] PM: Syncing filesystems ... done.
[   50.476924] Freezing user space processes ... (elapsed 0.005 seconds) done.
[   50.490093] Freezing remaining freezable tasks ... (elapsed 0.004 seconds) done.
[   50.559771] ------------[ cut here ]------------
[   50.564453] WARNING: CPU: 0 PID: 575 at drivers/clk/clk.c:851 __clk_disable+0x60/0x6c()
[   50.572475] Modules linked in:
[   50.575578] CPU: 0 PID: 575 Comm: sh Not tainted 3.18.0-rc2-next-20141031-00007-gf61135b #21
[   50.584031] Backtrace:
[   50.586550] [<80011ecc>] (dump_backtrace) from [<8001206c>] (show_stack+0x18/0x1c)
[   50.594136]  r6:808a7a54 r5:00000000 r4:00000000 r3:00000000
[   50.599920] [<80012054>] (show_stack) from [<806ab3c0>] (dump_stack+0x80/0x9c)
[   50.607187] [<806ab340>] (dump_stack) from [<8002a3e8>] (warn_slowpath_common+0x6c/0x8c)
[   50.615294]  r5:00000353 r4:00000000
[   50.618940] [<8002a37c>] (warn_slowpath_common) from [<8002a42c>] (warn_slowpath_null+0x24/0x2c)
[   50.627738]  r8:00000000 r7:be144c44 r6:be015600 r5:80070013 r4:be015600
[   50.634573] [<8002a408>] (warn_slowpath_null) from [<804f8d4c>] (__clk_disable+0x60/0x6c)
[   50.642777] [<804f8cec>] (__clk_disable) from [<804f8e5c>] (clk_disable+0x2c/0x38)
[   50.650359]  r4:be015600 r3:00000000
[   50.654006] [<804f8e30>] (clk_disable) from [<80420ab4>] (fec_enet_clk_enable+0xc4/0x258)
[   50.662196]  r5:be3cb620 r4:be3cb000
[   50.665838] [<804209f0>] (fec_enet_clk_enable) from [<80421178>] (fec_suspend+0x30/0x180)
[   50.674026]  r7:be144c44 r6:be144c10 r5:8037f5a4 r4:be3cb000
[   50.679802] [<80421148>] (fec_suspend) from [<8037f5d8>] (platform_pm_suspend+0x34/0x64)
[   50.687906]  r10:00000000 r9:00000000 r8:00000000 r7:be144c44 r6:be144c10 r5:8037f5a4
[   50.695852]  r4:be144c10 r3:80421148
[   50.699511] [<8037f5a4>] (platform_pm_suspend) from [<8038784c>] (dpm_run_callback.isra.14+0x34/0x6c)
[   50.708764] [<80387818>] (dpm_run_callback.isra.14) from [<80387f00>] (__device_suspend+0x12c/0x2a4)
[   50.717909]  r9:8098ec8c r8:80973bec r6:00000002 r5:811c7038 r4:be144c10
[   50.724746] [<80387dd4>] (__device_suspend) from [<803894fc>] (dpm_suspend+0x64/0x224)
[   50.732675]  r8:80973bec r7:be144c10 r6:8098ec24 r5:811c7038 r4:be144cc4
[   50.739509] [<80389498>] (dpm_suspend) from [<8038999c>] (dpm_suspend_start+0x60/0x68)
[   50.747438]  r10:8082fa24 r9:00000000 r8:00000004 r7:00000003 r6:00000000 r5:8116ec80
[   50.755386]  r4:00000002
[   50.757969] [<8038993c>] (dpm_suspend_start) from [<800679d8>] (suspend_devices_and_enter+0x90/0x3ec)
[   50.767202]  r4:00000003 r3:8116eca0
[   50.770843] [<80067948>] (suspend_devices_and_enter) from [<80067f40>] (pm_suspend+0x20c/0x2a4)
[   50.779553]  r8:00000004 r7:00000003 r6:00000000 r5:8116ec8c r4:00000003
[   50.786394] [<80067d34>] (pm_suspend) from [<80066858>] (state_store+0x70/0xc0)
[   50.793718]  r6:8116ec90 r5:00000003 r4:bd88a800 r3:0000006d
[   50.799496] [<800667e8>] (state_store) from [<802b0384>] (kobj_attr_store+0x1c/0x28)
[   50.807251]  r10:bd399f78 r8:00000000 r7:bd88a800 r6:bd88a800 r5:00000004 r4:bd085680
[   50.815219] [<802b0368>] (kobj_attr_store) from [<80153090>] (sysfs_kf_write+0x54/0x58)
[   50.823252] [<8015303c>] (sysfs_kf_write) from [<80151fd8>] (kernfs_fop_write+0xd0/0x194)
[   50.831441]  r6:00000004 r5:bd08568c r4:bd085680 r3:8015303c
[   50.837220] [<80151f08>] (kernfs_fop_write) from [<800eddb4>] (vfs_write+0xb8/0x1a8)
[   50.844975]  r10:00000000 r9:00000000 r8:00000000 r7:bd399f78 r6:01336408 r5:00000004
[   50.852924]  r4:bc584dc0
[   50.855505] [<800edcfc>] (vfs_write) from [<800ee0b8>] (SyS_write+0x48/0x88)
[   50.862567]  r10:00000000 r8:00000000 r7:01336408 r6:00000004 r5:bc584dc0 r4:bc584dc0
[   50.870537] [<800ee070>] (SyS_write) from [<8000eb00>] (ret_fast_syscall+0x0/0x48)
[   50.878120]  r9:bd398000 r8:8000ecc4 r7:00000004 r6:76f42b48 r5:01336408 r4:00000004
[   50.885983] ---[ end trace 7545115d752a316a ]---
[   50.890765] ------------[ cut here ]------------

The root cause is that eth1 is not opened and clock is not enabled, and .suspend() still
call .fec_enet_clk_enable() to disable clock.

To avoid the broken, let it check network device up status by calling .netif_running()
before disable/enable clocks.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-03 14:50:11 -05:00
Herbert Xu
2eb783c43e tun: Fix TUN_PKT_STRIP setting
We set the flag TUN_PKT_STRIP if the user buffer provided is too
small to contain the entire packet plus meta-data.  However, this
has been broken ever since we added GSO meta-data.  VLAN acceleration
also has the same problem.

This patch fixes this by taking both into account when setting the
TUN_PKT_STRIP flag.

The fact that this has been broken for six years without anyone
realising means that nobody actually uses this flag.

Fixes: f43798c276 ("tun: Allow GSO using virtio_net_hdr")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-03 14:27:06 -05:00
Herbert Xu
a8f9bfdf98 tun: Fix csum_start with VLAN acceleration
When VLAN acceleration is in use on the xmit path, we end up
setting csum_start to the wrong place.  The result is that the
whoever ends up doing the checksum setting will corrupt the packet
instead of writing the checksum to the expected location, usually
this means writing the checksum with an offset of -4.

This patch fixes this by adjusting csum_start when VLAN acceleration
is detected.

Fixes: 6680ec68ef ("tuntap: hardware vlan tx support")
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-03 14:27:06 -05:00
Emmanuel Grumbach
31b8b343e0 iwlwifi: fix RFkill while calibrating
If the RFkill interrupt fires while we calibrate, it would
make the firmware fail and the driver wasn't able to recover.
Change the flow so that the driver will kill the firmware
in that case.

Since we have now two flows that are calling
trans_stop_device (the RFkill interrupt and the
op_mode_mvm_start function) - we need to better sync this.
Use the STATUS_DEVICE_ENABLED in the pcie transport in an
atomic way to achieve this.

This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=86231

CC: <stable@vger.kernel.org> [3.10+]
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-11-03 15:29:17 +02:00
Linus Walleij
d52fdbb735 smc91x: retrieve IRQ and trigger flags in a modern way
The SMC91x is written to explicitly look up the IRQ resource
from the platform device and extract the IRQ and flags, however
the platform_get_irq() does additional things, like call
of_irq_get() in the device tree case, which will translate
the IRQ using the irqdomain and defer the probe if the
IRQ host cannot be found.

As we're not looking up the resource, this will not retrieve
the IRQ flags, but that is better done using
irqd_get_trigger_type(), as the trigger is what the driver
wants to modify. We take care to preserve the semantics that
will make the trigger type provided from the resource
override any local specifier.

Tested on the Nomadik NHK15 which has its SMC91x IRQ line
connected to a STMPE2401 GPIO expander on I2C.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-01 17:04:20 -04:00
Chen Gang
1db3ddff16 drivers: net: ethernet: xilinx: xilinx_emaclite: Compatible with 'xlnx, xps-ethernetlite-2.00.b' for QEMU using
When use current latest upstream qemu (current version: 2.1.2), need let
driver compatible with 'xlnx,xps-ethernetlite-2.00.b', or can not find
net device in microblaze qemu. Related QEMU commands under fedora 20:

  yum install libvirt
  yum install tunctl
  tunctl -b
  ip link set tap0 up
  brctl addif virbr0 tap0
  ./microblaze-softmmu/qemu-system-microblaze -M petalogix-s3adsp1800 \
    -kernel ../linux-stable.microblaze/arch/microblaze/boot/linux.bin \
    -no-reboot -append "console=ttyUL0,115200 doreboot" -nographic \
    -net nic,vlan=0,model=xlnx.xps-ethernetlite,macaddr=00:16:35:AF:94:00 \
    -net tap,vlan=0,ifname=tap0,script=no,downscript=no

  in microblaze qemu bash (guest machine):

    ifconfig eth0 add 192.168.122.2 netmask 255.255.255.0
    ifconfig eth0 up

After add this patch, can find the device, and can be used by 'telnetd'
(need cross-build busybox with glibc for it), then outside can telnet to
it without password.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-01 17:03:12 -04:00
Florian Fainelli
914adb55af net: systemport: do not crash freeing an unitialized TX ring
Callers of bcm_sysport_init_tx_ring() can currently fail, and will
always call bcm_sysport_fini_tx_ring() in a loop ending at the number of
TX queues (32) without checking if the TX ring was successfully
initialized or not.

Update bcm_sysport_fini_tx_ring() to return early and avoid a crash
de-referencing ring->cbs if the TX ring was not initialized, since
ring->cbs is the last part of the initialization done by
bcm_sysport_init_tx_ring() that could fail.

Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-01 15:13:56 -04:00
Florian Fainelli
3e8fc38c21 net: systemport: fix DMA allocation/freeing sizes
We should not be allocating a single byte of DMA coherent memory, but
instead a full-sized struct dma_desc (8 bytes).

Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-01 15:13:56 -04:00
Sudip Mukherjee
437374735c net: mvpp2: fix possible memory leak
we are allocating memory using kzalloc for struct mvpp2_prs_entry,
but later when we are getting error we were just returning the error
value without releasing the memory.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-01 15:11:50 -04:00
David S. Miller
ec1f127602 sunhme: Add DMA mapping error checks.
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-01 00:23:46 -04:00
Linus Torvalds
9f935675d4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "A bunch of fixes for minor defects reported by Coverity, a few driver
  fixups and revert of i8042.nomux change so that we are once again
  enable active MUX mode if box claims to support it"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Revert "Input: i8042 - disable active multiplexing by default"
  Input: altera_ps2 - use correct type for irq return value
  Input: altera_ps2 - write to correct register when disabling interrupts
  Input: max77693-haptic - fix potential overflow
  Input: psmouse - remove unneeded check in psmouse_reconnect()
  Input: vsxxxaa - fix code dropping bytes from queue
  Input: ims-pcu - fix dead code in ims_pcu_ofn_reg_addr_store()
  Input: opencores-kbd - fix error handling
  Input: wm97xx - adapt parameters to tosa touchscreen.
  Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544
  Input: stmpe-keypad - fix valid key line bitmask
  Input: soc_button_array - update calls to gpiod_get*()
2014-10-31 19:51:11 -07:00
Linus Torvalds
ab01f963de Merge tag 'pm+acpi-3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
 "These are fixes received after my previous pull request plus one that
  has been in the works for quite a while, but its previous version
  caused problems to happen, so it's been deferred till now.

  Fixed are two recent regressions (MFD enumeration and cpufreq-dt),
  ACPI EC regression introduced in 3.17, system suspend error code path
  regression introduced in 3.15, an older bug related to recovery from
  failing resume from hibernation and a cpufreq-dt driver issue related
  to operation performance points.

  Specifics:

   - Fix a crash on r8a7791/koelsch during resume from system suspend
     caused by a recent cpufreq-dt commit (Geert Uytterhoeven).

   - Fix an MFD enumeration problem introduced by a recent commit adding
     ACPI support to the MFD subsystem that exposed a weakness in the
     ACPI core causing ACPI enumeration to be applied to all devices
     associated with one ACPI companion object, although it should be
     used for one of them only (Mika Westerberg).

   - Fix an ACPI EC regression introduced during the 3.17 cycle causing
     some Samsung laptops to misbehave as a result of a workaround
     targeted at some Acer machines.  That includes a revert of a commit
     that went too far and a quirk for the Acer machines in question.
     From Lv Zheng.

   - Fix a regression in the system suspend error code path introduced
     during the 3.15 cycle that causes it to fail to take errors from
     asychronous execution of "late" suspend callbacks into account
     (Imre Deak).

   - Fix a long-standing bug in the hibernation resume error code path
     that fails to roll back everything correcty on "freeze" callback
     errors and leaves some devices in a "suspended" state causing more
     breakage to happen subsequently (Imre Deak).

   - Make the cpufreq-dt driver disable operation performance points
     that are not supported by the VR connected to the CPU voltage plane
     with acceptable tolerance instead of constantly failing voltage
     scaling later on (Lucas Stach)"

* tag 'pm+acpi-3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / EC: Fix regression due to conflicting firmware behavior between Samsung and Acer.
  Revert "ACPI / EC: Add support to disallow QR_EC to be issued before completing previous QR_EC"
  cpufreq: cpufreq-dt: Restore default cpumask_setall(policy->cpus)
  PM / Sleep: fix recovery during resuming from hibernation
  PM / Sleep: fix async suspend_late/freeze_late error handling
  ACPI: Use ACPI companion to match only the first physical device
  cpufreq: cpufreq-dt: disable unsupported OPPs
2014-10-31 19:08:25 -07:00
Linus Torvalds
08da742ef9 Merge tag 'pci-v3.18-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
 "These changes, intended for v3.18, fix:

  Sysfs
    - Fix "enable" filename change (Greg Kroah-Hartman)

      An unintentional sysfs filename change in commit 5136b2da77
      ("PCI: convert bus code to use dev_groups"), which appeared in
      v3.13, changed "enable" to "enabled", and this changes it back.

      Old users of "enable" are currently broken and will be helped by
      this change.  Anything that started to use "enabled" after v3.13
      will be broken by this change.  If necessary, we can add a symlink
      to make both work, but this patch doesn't do that.

  PCI device hotplug
    - Revert duplicate merge (Kamal Mostafa)

      A mistaken duplicate merge that added a check twice.  Nothing's
      broken; this just removes the unnecessary code.

  Freescale i.MX6
    - Wait for clocks to stabilize after ref_en (Richard Zhu)

      An i.MX6 clock problem that prevents mx6 nitrogen boards from booting"

* tag 'pci-v3.18-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Rename sysfs 'enabled' file back to 'enable'
  PCI: imx6: Wait for clocks to stabilize after ref_en
  Revert duplicate "PCI: pciehp: Prevent NULL dereference during probe"
2014-10-31 18:48:29 -07:00
Linus Torvalds
89453379aa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "A bit has accumulated, but it's been a week or so since my last batch
  of post-merge-window fixes, so...

   1) Missing module license in netfilter reject module, from Pablo.
      Lots of people ran into this.

   2) Off by one in mac80211 baserate calculation, from Karl Beldan.

   3) Fix incorrect return value from ax88179_178a driver's set_mac_addr
      op, which broke use of it with bonding.  From Ian Morgan.

   4) Checking of skb_gso_segment()'s return value was not all
      encompassing, it can return an SKB pointer, a pointer error, or
      NULL.  Fix from Florian Westphal.

      This is crummy, and longer term will be fixed to just return error
      pointers or a real SKB.

   6) Encapsulation offloads not being handled by
      skb_gso_transport_seglen().  From Florian Westphal.

   7) Fix deadlock in TIPC stack, from Ying Xue.

   8) Fix performance regression from using rhashtable for netlink
      sockets.  The problem was the synchronize_net() invoked for every
      socket destroy.  From Thomas Graf.

   9) Fix bug in eBPF verifier, and remove the strong dependency of BPF
      on NET.  From Alexei Starovoitov.

  10) In qdisc_create(), use the correct interface to allocate
      ->cpu_bstats, otherwise the u64_stats_sync member isn't
      initialized properly.  From Sabrina Dubroca.

  11) Off by one in ip_set_nfnl_get_byindex(), from Dan Carpenter.

  12) nf_tables_newchain() was erroneously expecting error pointers from
      netdev_alloc_pcpu_stats().  It only returna a valid pointer or
      NULL.  From Sabrina Dubroca.

  13) Fix use-after-free in _decode_session6(), from Li RongQing.

  14) When we set the TX flow hash on a socket, we mistakenly do so
      before we've nailed down the final source port.  Move the setting
      deeper to fix this.  From Sathya Perla.

  15) NAPI budget accounting in amd-xgbe driver was counting descriptors
      instead of full packets, fix from Thomas Lendacky.

  16) Fix total_data_buflen calculation in hyperv driver, from Haiyang
      Zhang.

  17) Fix bcma driver build with OF_ADDRESS disabled, from Hauke
      Mehrtens.

  18) Fix mis-use of per-cpu memory in TCP md5 code.  The problem is
      that something that ends up being vmalloc memory can't be passed
      to the crypto hash routines via scatter-gather lists.  From Eric
      Dumazet.

  19) Fix regression in promiscuous mode enabling in cdc-ether, from
      Olivier Blin.

  20) Bucket eviction and frag entry killing can race with eachother,
      causing an unlink of the object from the wrong list.  Fix from
      Nikolay Aleksandrov.

  21) Missing initialization of spinlock in cxgb4 driver, from Anish
      Bhatt.

  22) Do not cache ipv4 routing failures, otherwise if the sysctl for
      forwarding is subsequently enabled this won't be seen.  From
      Nicolas Cavallari"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (131 commits)
  drivers: net: cpsw: Support ALLMULTI and fix IFF_PROMISC in switch mode
  drivers: net: cpsw: Fix broken loop condition in switch mode
  net: ethtool: Return -EOPNOTSUPP if user space tries to read EEPROM with lengh 0
  stmmac: pci: set default of the filter bins
  net: smc91x: Fix gpios for device tree based booting
  mpls: Allow mpls_gso to be built as module
  mpls: Fix mpls_gso handler.
  r8152: stop submitting intr for -EPROTO
  netfilter: nft_reject_bridge: restrict reject to prerouting and input
  netfilter: nft_reject_bridge: don't use IP stack to reject traffic
  netfilter: nf_reject_ipv6: split nf_send_reset6() in smaller functions
  netfilter: nf_reject_ipv4: split nf_send_reset() in smaller functions
  netfilter: nf_tables_bridge: update hook_mask to allow {pre,post}routing
  drivers/net: macvtap and tun depend on INET
  drivers/net, ipv6: Select IPv6 fragment idents for virtio UFO packets
  drivers/net: Disable UFO through virtio
  net: skb_fclone_busy() needs to detect orphaned skb
  gre: Use inner mac length when computing tunnel length
  mlx4: Avoid leaking steering rules on flow creation error flow
  net/mlx4_en: Don't attempt to TX offload the outer UDP checksum for VXLAN
  ...
2014-10-31 15:04:58 -07:00
Linus Torvalds
53429290a0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc update from David Miller:
 "Two changes:

  1) It makes no sense to execute a VTOC partition table request in the
     Sun virtual block device driver and fail to load if it doesn't
     succeed because a) we don't use the result at all and b) it won't
     succeed if there is an EFI partition on the disk, for example.

     We read the partition table via the normal means in the block layer
     anyways, so this is really completely useless, so just remove it.

     From Dwight Engen.

  2) Hook up new bpf system call"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sunvdc: don't call VD_OP_GET_VTOC
  sparc: Hook up bpf system call.
2014-10-31 15:00:48 -07:00
Rafael J. Wysocki
7d627280b3 Merge branches 'pm-cpufreq' and 'pm-sleep'
* pm-cpufreq:
  cpufreq: cpufreq-dt: Restore default cpumask_setall(policy->cpus)
  cpufreq: cpufreq-dt: disable unsupported OPPs

* pm-sleep:
  PM / Sleep: fix recovery during resuming from hibernation
  PM / Sleep: fix async suspend_late/freeze_late error handling
2014-10-31 22:25:07 +01:00
Rafael J. Wysocki
76dfdc2c6e Merge branches 'acpi-scan' and 'acpi-ec'
* acpi-scan:
  ACPI: Use ACPI companion to match only the first physical device

* acpi-ec:
  ACPI / EC: Fix regression due to conflicting firmware behavior between Samsung and Acer.
  Revert "ACPI / EC: Add support to disallow QR_EC to be issued before completing previous QR_EC"
2014-10-31 22:24:44 +01:00
David S. Miller
99a49ce613 Merge tag 'master-2014-10-30' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
pull request: wireless 2014-10-31

Please pull this small batch of spooky fixes intended for the 3.18
stream...boo!

Cyril Brulebois adds an rt2x00 device ID.

Dan Carpenter provides a one-line masking fix for an ath9k debugfs
entry.

Larry Finger gives us a package of small rtlwifi fixes which add some
bits that were left out of some feature updates that were included
in the merge window.  Hopefully this isn't a sign that the rtlwifi
base is getting too big...

Marc Yang brings a fix for a temporary mwifiex stall when doing 11n
RX reordering.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-10-31 16:18:35 -04:00