Skip to content

K
Kernel

openeuler / Kernel
1 年多 前同步成功

通知 8
Star 0
Fork 0
K
Kernel
切换分支/标签
  1. 01 10月, 2013 1 次提交
  3. 27 9月, 2013 15 次提交
    • A
      brcmsmac: call bcma_core_pci_power_save() from non-atomic context · c7515d23
      由 Arend van Spriel 提交于 
      This patch adds explicit call to bcma_core_pci_power_save() from
a non-atomic context resolving 'scheduling while atomic' issue.

[   13.224317] BUG: scheduling while atomic: dhcpcd/1800/0x00000202
[   13.224322] Modules linked in: brcmsmac nouveau coretemp kvm_intel kvm cordic brcmutil bcma dell_wmi atl1c ttm mxm_wmi wmi
[   13.224354] CPU: 0 PID: 1800 Comm: dhcpcd Tainted: G        W    3.11.0-wl #1
[   13.224359] Hardware name: Alienware M11x R2/M11x R2, BIOS A04 11/23/2010
[   13.224363]  ffff880177c12c40 ffff880170fd1968 ffffffff8169af5b 0000000000000007
[   13.224374]  ffff880170fd1ad0 ffff880170fd1978 ffffffff81697ee2 ffff880170fd19f8
[   13.224383]  ffffffff816a19f5 00000000000f4240 000000000000d080 ffff880170fd1fd8
[   13.224391] Call Trace:
[   13.224399]  [<ffffffff8169af5b>] dump_stack+0x4f/0x84
[   13.224403]  [<ffffffff81697ee2>] __schedule_bug+0x43/0x51
[   13.224409]  [<ffffffff816a19f5>] __schedule+0x6e5/0x810
[   13.224412]  [<ffffffff816a1c34>] schedule+0x24/0x70
[   13.224416]  [<ffffffff816a04fc>] schedule_hrtimeout_range_clock+0x10c/0x150
[   13.224420]  [<ffffffff810684e0>] ? update_rmtp+0x60/0x60
[   13.224424]  [<ffffffff8106915f>] ? hrtimer_start_range_ns+0xf/0x20
[   13.224429]  [<ffffffff816a054e>] schedule_hrtimeout_range+0xe/0x10
[   13.224432]  [<ffffffff8104f6fb>] usleep_range+0x3b/0x40
[   13.224437]  [<ffffffffa003733a>] bcma_pcie_mdio_read.isra.5+0x8a/0x100 [bcma]
[   13.224442]  [<ffffffffa00374a5>] bcma_pcie_mdio_writeread.isra.6.constprop.13+0x25/0x30 [bcma]
[   13.224448]  [<ffffffffa00374f9>] bcma_core_pci_power_save+0x49/0x80 [bcma]
[   13.224452]  [<ffffffffa003765d>] bcma_core_pci_up+0x2d/0x60 [bcma]
[   13.224460]  [<ffffffffa03dc17c>] brcms_c_up+0xfc/0x430 [brcmsmac]
[   13.224467]  [<ffffffffa03d1a7d>] brcms_up+0x1d/0x20 [brcmsmac]
[   13.224473]  [<ffffffffa03d2498>] brcms_ops_start+0x298/0x340 [brcmsmac]
[   13.224478]  [<ffffffff81600a12>] ? cfg80211_netdev_notifier_call+0xd2/0x5f0
[   13.224483]  [<ffffffff815fa53d>] ? packet_notifier+0xad/0x1d0
[   13.224487]  [<ffffffff81656e75>] ieee80211_do_open+0x325/0xf80
[   13.224491]  [<ffffffff8106ac09>] ? __raw_notifier_call_chain+0x9/0x10
[   13.224495]  [<ffffffff81657b41>] ieee80211_open+0x71/0x80
[   13.224498]  [<ffffffff81526267>] __dev_open+0x87/0xe0
[   13.224502]  [<ffffffff8152650c>] __dev_change_flags+0x9c/0x180
[   13.224505]  [<ffffffff815266a3>] dev_change_flags+0x23/0x70
[   13.224509]  [<ffffffff8158cd68>] devinet_ioctl+0x5b8/0x6a0
[   13.224512]  [<ffffffff8158d5c5>] inet_ioctl+0x75/0x90
[   13.224516]  [<ffffffff8150b38b>] sock_do_ioctl+0x2b/0x70
[   13.224519]  [<ffffffff8150b681>] sock_ioctl+0x71/0x2a0
[   13.224523]  [<ffffffff8114ed47>] do_vfs_ioctl+0x87/0x520
[   13.224528]  [<ffffffff8113f159>] ? ____fput+0x9/0x10
[   13.224533]  [<ffffffff8106228c>] ? task_work_run+0x9c/0xd0
[   13.224537]  [<ffffffff8114f271>] SyS_ioctl+0x91/0xb0
[   13.224541]  [<ffffffff816aa252>] system_call_fastpath+0x16/0x1b

Cc: <stable@vger.kernel.org> # 3.11.x
Cc: Tod Jackson <tod.jackson@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Rafal Milecki <zajec5@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: NHante Meuleman <meuleman@broadcom.com>
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      c7515d23
    • A
      brcmfmac: obtain platform data upon module initialization · db4efbbe
      由 Arend van Spriel 提交于 
      The driver uses platform_driver_probe() to obtain platform data
if any. However, that function is placed in the .init section so
it must be called upon driver module initialization.

The problem was reported by Fenguang Wu resulting in a kernel
oops because the .init section was already freed.

[   48.966342] Switched to clocksource tsc
[   48.970002] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
[   48.970851] BUG: unable to handle kernel paging request at ffffffff82196446
[   48.970957] IP: [<ffffffff82196446>] classes_init+0x26/0x26
[   48.970957] PGD 1e76067 PUD 1e77063 PMD f388063 PTE 8000000002196163
[   48.970957] Oops: 0011 [#1]
[   48.970957] CPU: 0 PID: 17 Comm: kworker/0:1 Not tainted 3.11.0-rc7-00444-gc52dd7f #23
[   48.970957] Workqueue: events brcmf_driver_init
[   48.970957] task: ffff8800001d2000 ti: ffff8800001d4000 task.ti: ffff8800001d4000
[   48.970957] RIP: 0010:[<ffffffff82196446>]  [<ffffffff82196446>] classes_init+0x26/0x26
[   48.970957] RSP: 0000:ffff8800001d5d40  EFLAGS: 00000286
[   48.970957] RAX: 0000000000000001 RBX: ffffffff820c5620 RCX: 0000000000000000
[   48.970957] RDX: 0000000000000001 RSI: ffffffff816f7380 RDI: ffffffff820c56c0
[   48.970957] RBP: ffff8800001d5d50 R08: ffff8800001d2508 R09: 0000000000000002
[   48.970957] R10: 0000000000000000 R11: 0001f7ce298c5620 R12: ffff8800001c76b0
[   48.970957] R13: ffffffff81e91d40 R14: 0000000000000000 R15: ffff88000e0ce300
[   48.970957] FS:  0000000000000000(0000) GS:ffffffff81e84000(0000) knlGS:0000000000000000
[   48.970957] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   48.970957] CR2: ffffffff82196446 CR3: 0000000001e75000 CR4: 00000000000006b0
[   48.970957] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.970957] DR3: 0000000000000000 DR6: 0000000000000000 DR7: 0000000000000000
[   48.970957] Stack:
[   48.970957]  ffffffff816f7df8 ffffffff820c5620 ffff8800001d5d60 ffffffff816eeec9
[   48.970957]  ffff8800001d5de0 ffffffff81073dc5 ffffffff81073d68 ffff8800001d5db8
[   48.970957]  0000000000000086 ffffffff820c5620 ffffffff824f7fd0 0000000000000000
[   48.970957] Call Trace:
[   48.970957]  [<ffffffff816f7df8>] ? brcmf_sdio_init+0x18/0x70
[   48.970957]  [<ffffffff816eeec9>] brcmf_driver_init+0x9/0x10
[   48.970957]  [<ffffffff81073dc5>] process_one_work+0x1d5/0x480
[   48.970957]  [<ffffffff81073d68>] ? process_one_work+0x178/0x480
[   48.970957]  [<ffffffff81074188>] worker_thread+0x118/0x3a0
[   48.970957]  [<ffffffff81074070>] ? process_one_work+0x480/0x480
[   48.970957]  [<ffffffff8107aa17>] kthread+0xe7/0xf0
[   48.970957]  [<ffffffff810829f7>] ? finish_task_switch.constprop.57+0x37/0xd0
[   48.970957]  [<ffffffff8107a930>] ? __kthread_parkme+0x80/0x80
[   48.970957]  [<ffffffff81a6923a>] ret_from_fork+0x7a/0xb0
[   48.970957]  [<ffffffff8107a930>] ? __kthread_parkme+0x80/0x80
[   48.970957] Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
cc cc cc cc cc cc <cc> cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
[   48.970957] RIP  [<ffffffff82196446>] classes_init+0x26/0x26
[   48.970957]  RSP <ffff8800001d5d40>
[   48.970957] CR2: ffffffff82196446
[   48.970957] ---[ end trace 62980817cd525f14 ]---

Cc: <stable@vger.kernel.org> # 3.10.x, 3.11.x
Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Reviewed-by: NHante Meuleman <meuleman@broadcom.com>
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Tested-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      db4efbbe
    • B
      mwifiex: fix NULL pointer dereference in usb suspend handler · 346ece0b
      由 Bing Zhao 提交于 
      Bug 60815 - Interface hangs in mwifiex_usb
https://bugzilla.kernel.org/show_bug.cgi?id=60815

[ 2.883807] BUG: unable to handle kernel NULL pointer dereference
            at 0000000000000048
[ 2.883813] IP: [<ffffffff815a65e0>] pfifo_fast_enqueue+0x90/0x90

[ 2.883834] CPU: 1 PID: 3220 Comm: kworker/u8:90 Not tainted
            3.11.1-monotone-l0 #6
[ 2.883834] Hardware name: Microsoft Corporation Surface with
            Windows 8 Pro/Surface with Windows 8 Pro,
            BIOS 1.03.0450 03/29/2013

On Surface Pro, suspend to ram gives a NULL pointer dereference in
pfifo_fast_enqueue(). The stack trace reveals that the offending
call is clearing carrier in mwifiex_usb suspend handler.

Since commit 1499d9fa "mwifiex: don't drop carrier flag over suspend"
has removed the carrier flag handling over suspend/resume in SDIO
and PCIe drivers, I'm removing it in USB driver too. This also fixes
the bug for Surface Pro.

Cc: <stable@vger.kernel.org> # 3.5+
Tested-by: NDmitry Khromov <icechrome@gmail.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      346ece0b
    • A
      mwifiex: fix hang issue for USB chipsets · bd1c6142
      由 Amitkumar Karwar 提交于 
      Bug 60815 - Interface hangs in mwifiex_usb
https://bugzilla.kernel.org/show_bug.cgi?id=60815

We have 4 bytes of interface header for packets delivered to SDIO
and PCIe, but not for USB interface.

In Tx AMSDU case, currently 4 bytes of garbage data is unnecessarily
appended for USB packets. This sometimes leads to a firmware hang,
because it may not interpret the data packet correctly.

Problem is fixed by removing this redundant headroom for USB.

Cc: <stable@vger.kernel.org> # 3.5+
Tested-by: NDmitry Khromov <icechrome@gmail.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      bd1c6142
    • C
      p54usb: add USB ID for Corega WLUSB2GTST USB adapter · 1e43692c
      由 Christian Lamparter 提交于 
      Added USB ID for Corega WLUSB2GTST USB adapter.

Cc: <stable@vger.kernel.org>
Reported-by: NJoerg Kalisch <the_force@gmx.de>
Signed-off-by: NChristian Lamparter <chunkeey@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      1e43692c
    • S
      cw1200: Use a threaded oneshot irq handler for cw1200_spi · 87421cb6
      由 Solomon Peachy 提交于 
      This supercedes the older patch ("cw1200: Don't perform SPI transfers in
interrupt context") that badly attempted to fix this problem.

This is a far simpler solution, which has the added benefit of
actually working.
Signed-off-by: NSolomon Peachy <pizza@shaftnet.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      87421cb6
    • S
      Revert "cw1200: Don't perform SPI transfers in interrupt context" · c4fb19d2
      由 Solomon Peachy 提交于 
      This reverts commit aec8e88c.

This solution turned out to cause interrupt delivery problems, and
rather than trying to fix this approach, it has been scrapped in favor
of an alternative (and far simpler) implementation.
Signed-off-by: NSolomon Peachy <pizza@shaftnet.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      c4fb19d2
    • B
      mwifiex: fix PCIe hs_cfg cancel cmd timeout · b7be1522
      由 Bing Zhao 提交于 
      For pcie8897, the hs_cfg cancel command (0xe5) times out when host
comes out of suspend. This is caused by an incompleted host sleep
handshake between driver and firmware.

Like SDIO interface, PCIe also needs to go through firmware power
save events to complete the handshake for host sleep configuration.
Only USB interface doesn't require power save events for hs_cfg.

Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      b7be1522
    • L
      rtlwifi: Align private space in rtl_priv struct · 60ce314d
      由 Larry Finger 提交于 
      The private array at the end of the rtl_priv struct is not aligned.
On ARM architecture, this causes an alignment trap and is fixed by aligning
that array with __align(sizeof(void *)). That should properly align that
space according to the requirements of all architectures.
Reported-by: NJason Andrews <jasona@cadence.com>
Tested-by: NJason Andrews <jasona@cadence.com>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      60ce314d
    • F
      ath9k: add txq locking for ath_tx_aggr_start · 919123d2
      由 Felix Fietkau 提交于 
      Prevents race conditions when un-aggregated frames are pending in the
driver.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      919123d2
    • A
      p54usb: fix leak at failure path in p54u_load_firmware() · e78641c1
      由 Alexey Khoroshilov 提交于 
      If request_firmware_nowait() fails in p54u_load_firmware(),
p54u_load_firmware_cb is not called and no one decrements usb_dev refcnt.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      e78641c1
    • F
      ath9k: don't use BAW tracking on PS responses for non-AMPDU packets · 20e6e55a
      由 Felix Fietkau 提交于 
      When .release_buffered_frames was implemented, only A-MPDU packets were
buffered internally. Now that this has changed, the BUF_AMPDU flag needs
to be checked before calling ath_tx_addto_baw
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      20e6e55a
    • S
      ath9k: Fix regression in LNA diversity · d29a5fd8
      由 Sujith Manoharan 提交于 
      The commit "ath9k: Optimize LNA check" tried
to use the "rs_firstaggr" flag to optimize the LNA
combining algorithm when processing subframes in
an A-MPDU. This doesn't appear to work well in practice,
so revert it and use the old method of relying on
"rs_moreaggr".

Cc: stable@vger.kernel.org # 3.11
Signed-off-by: NSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      d29a5fd8
    • F
      ath9k: do not link bf_next across multiple A-MPDUs · 440c1c87
      由 Felix Fietkau 提交于 
      This might trip up tx completion processing, although the condition that
triggers this should not (yet) occur in practice.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      440c1c87
    • F
      ath9k: fix stale flag handling on buffer clone · 86c7d8d4
      由 Felix Fietkau 提交于 
      Fixes a regression from commit
"ath9k: shrink a few data structures by reordering fields"

When cloning a buffer, the stale flag (part of bf_state now) needs to be
reset after copying the state to prevent tx processing hangs.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      86c7d8d4
  5. 20 9月, 2013 4 次提交
    • N
      netconsole: fix a deadlock with rtnl and netconsole's mutex · c71380ff
      由 Nikolay Aleksandrov 提交于 
      This bug was introduced by commit
7a163bfb ("netconsole: avoid a crash with
multiple sysfs writers"). In store_enabled() we have the following
sequence: acquire nt->mutex then rtnl, but in the netconsole netdev
notifier we have rtnl then nt->mutex effectively leading to a deadlock.
The NULL pointer dereference that the above commit tries to fix is
actually due to another bug in netpoll_cleanup(). This is fixed by dropping
the mutex from the netdev notifier as it's already protected by rtnl.
Signed-off-by: NNikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c71380ff
    • M
      skge: fix broken driver · c194992c
      由 Mikulas Patocka 提交于 
      The patch 136d8f37 broke the skge driver.
Note this part of the patch:
+               if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) {
+                       dev_kfree_skb(nskb);
+                       goto resubmit;
+               }
+
                pci_unmap_single(skge->hw->pdev,
                                 dma_unmap_addr(e, mapaddr),
                                 dma_unmap_len(e, maplen),
                                 PCI_DMA_FROMDEVICE);
                skb = e->skb;
                prefetch(skb->data);
-               skge_rx_setup(skge, e, nskb, skge->rx_buf_size);

The function skge_rx_setup modifies e->skb to point to the new skb. Thus,
after this change, the new buffer, not the old, is returned to the
networking stack.

This bug is present in kernels 3.11, 3.11.1 and 3.12-rc1. The patch should
be queued for 3.11-stable.
Signed-off-by: NMikulas Patocka <mpatocka@redhat.com>
Reported-by: NMikulas Patocka <mpatocka@redhat.com>
Reported-by: NVasiliy Glazov <vascom2@gmail.com>
Tested-by: NMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c194992c
    • A
      ip: generate unique IP identificator if local fragmentation is allowed · 703133de
      由 Ansis Atteka 提交于 
      If local fragmentation is allowed, then ip_select_ident() and
ip_select_ident_more() need to generate unique IDs to ensure
correct defragmentation on the peer.

For example, if IPsec (tunnel mode) has to encrypt large skbs
that have local_df bit set, then all IP fragments that belonged
to different ESP datagrams would have used the same identificator.
If one of these IP fragments would get lost or reordered, then
peer could possibly stitch together wrong IP fragments that did
not belong to the same datagram. This would lead to a packet loss
or data corruption.
Signed-off-by: NAnsis Atteka <aatteka@nicira.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      703133de
    • P
      xen-netback: Don't destroy the netdev until the vif is shut down · 279f438e
      由 Paul Durrant 提交于 
      Without this patch, if a frontend cycles through states Closing
and Closed (which Windows frontends need to do) then the netdev
will be destroyed and requires re-invocation of hotplug scripts
to restore state before the frontend can move to Connected. Thus
when udev is not in use the backend gets stuck in InitWait.

With this patch, the netdev is left alone whilst the backend is
still online and is only de-registered and freed just prior to
destroying the vif (which is also nicely symmetrical with the
netdev allocation and registration being done during probe) so
no re-invocation of hotplug scripts is required.
Signed-off-by: NPaul Durrant <paul.durrant@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Acked-by: NWei Liu <wei.liu2@citrix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      279f438e
  7. 19 9月, 2013 2 次提交
  9. 18 9月, 2013 3 次提交
  11. 17 9月, 2013 7 次提交
  13. 16 9月, 2013 8 次提交