linux_dsm_epyc7002/drivers
Robert Love 848e7d5b46 [SCSI] fcoe: Fix deadlock between fip's recv_work and rtnl
The rtnl cannot be held durrng the fcoe_interface_put.
If it is the last reference on the fcoe_interface the
fcoe_ctlr_destroy will be called as a part of the
cleanup, ultimately calling cancel_work_sync(&fip->recv_work);

If we are processing a flogi response we will be in
the recv_work context and we will lock the rtnl to
add a new unicast MAC address. This is how the deadlock
can occur.

The fix is simply to move the rtnl_lock/unlock into
fcoe_interface_cleanup so that it can be unlocked before
fcoe_interface_put is called.

Here is the lockdep report:

Jul 21 11:26:35 bubba [  223.870702]
ul 21 11:26:35 bubba [  223.870704] =======================================================
Jul 21 11:26:35 bubba [  223.871255] [ INFO: possible circular locking dependency detected ]
Jul 21 11:26:35 bubba [  223.871530] 3.0.0-rc7+ #1
Jul 21 11:26:35 bubba [  223.871797] -------------------------------------------------------
Jul 21 11:26:35 bubba [  223.872072] lockdeptest.sh/3464 is trying to acquire lock:
Jul 21 11:26:35 bubba [  223.872345]  ((&fip->recv_work)
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba , at:
Jul 21 11:26:35 bubba [<ffffffff810531f1>] wait_on_work+0x0/0xbd
Jul 21 11:26:35 bubba [  223.873022]
Jul 21 11:26:35 bubba [  223.873023] but task is already holding lock:
Jul 21 11:26:35 bubba [  223.873555]  (rtnl_mutex
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba , at:
Jul 21 11:26:35 bubba [<ffffffff813e8233>] rtnl_lock+0x12/0x14
Jul 21 11:26:35 bubba [  223.874229]
Jul 21 11:26:35 bubba [  223.874230] which lock already depends on the new lock.
Jul 21 11:26:35 bubba [  223.874231]
Jul 21 11:26:35 bubba [  223.875032]
Jul 21 11:26:35 bubba [  223.875033] the existing dependency chain (in reverse order) is:
Jul 21 11:26:35 bubba [  223.875573]
Jul 21 11:26:35 bubba [  223.875573] -> #1
Jul 21 11:26:35 bubba (rtnl_mutex
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba :
Jul 21 11:26:35 bubba [  223.876301]
Jul 21 11:26:35 bubba [<ffffffff8106c14a>] lock_acquire+0xd2/0xf7
Jul 21 11:26:35 bubba [  223.876645]
Jul 21 11:26:35 bubba [<ffffffff8151d975>] __mutex_lock_common+0x47/0x30d
Jul 21 11:26:35 bubba [  223.876991]
Jul 21 11:26:35 bubba [<ffffffff8151dd36>] mutex_lock_nested+0x3b/0x40
Jul 21 11:26:35 bubba [  223.877334]
Jul 21 11:26:35 bubba [<ffffffff813e8233>] rtnl_lock+0x12/0x14
Jul 21 11:26:35 bubba [  223.877675]
Jul 21 11:26:35 bubba [<ffffffffa003d5a0>] fcoe_update_src_mac+0x2b/0x80 [fcoe]
Jul 21 11:26:35 bubba [  223.878022]
Jul 21 11:26:35 bubba [<ffffffffa003d698>] fcoe_flogi_resp+0x5e/0x79 [fcoe]
Jul 21 11:26:35 bubba [  223.878366]
Jul 21 11:26:35 bubba [<ffffffffa001566f>] fc_exch_recv+0x7f5/0x9da [libfc]
Jul 21 11:26:35 bubba [  223.878713]
Jul 21 11:26:35 bubba [<ffffffffa00327d8>] fcoe_ctlr_recv_work+0x71f/0x10dc [libfcoe]
Jul 21 11:26:35 bubba [  223.879258]
Jul 21 11:26:35 bubba [<ffffffff81053761>] process_one_work+0x1d7/0x347
Jul 21 11:26:35 bubba [  223.879601]
Jul 21 11:26:35 bubba [<ffffffff81054ade>] worker_thread+0xf8/0x17c
Jul 21 11:26:35 bubba [  223.879944]
Jul 21 11:26:35 bubba [<ffffffff81058184>] kthread+0x7d/0x85
Jul 21 11:26:35 bubba [  223.880287]
Jul 21 11:26:35 bubba [<ffffffff81526414>] kernel_thread_helper+0x4/0x10
Jul 21 11:26:35 bubba [  223.880634]
Jul 21 11:26:35 bubba [  223.880635] -> #0
Jul 21 11:26:35 bubba ((&fip->recv_work)
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba :
Jul 21 11:26:35 bubba [  223.881357]
Jul 21 11:26:35 bubba [<ffffffff8106b93e>] __lock_acquire+0xb1d/0xe2c
Jul 21 11:26:35 bubba [  223.881695]
Jul 21 11:26:35 bubba [<ffffffff8106c14a>] lock_acquire+0xd2/0xf7
Jul 21 11:26:35 bubba [  223.882033]
Jul 21 11:26:35 bubba [<ffffffff81053241>] wait_on_work+0x50/0xbd
Jul 21 11:26:35 bubba [  223.882378]
Jul 21 11:26:35 bubba [<ffffffff81053b32>] __cancel_work_timer+0xb6/0xf4
Jul 21 11:26:35 bubba [  223.882718]
Jul 21 11:26:35 bubba [<ffffffff81053b8a>] cancel_work_sync+0xb/0xd
Jul 21 11:26:35 bubba [  223.883057]
Jul 21 11:26:35 bubba [<ffffffffa00317e6>] fcoe_ctlr_destroy+0x1d/0x67 [libfcoe]
Jul 21 11:26:35 bubba [  223.883399]
Jul 21 11:26:35 bubba [<ffffffffa003e51e>] fcoe_interface_release+0x21/0x45 [fcoe]
Jul 21 11:26:35 bubba [  223.883940]
Jul 21 11:26:35 bubba [<ffffffff811fbbe6>] kref_put+0x43/0x4d
Jul 21 11:26:35 bubba [  223.884280]
Jul 21 11:26:35 bubba [<ffffffffa003ebba>] fcoe_interface_put+0x17/0x19 [fcoe]
Jul 21 11:26:35 bubba [  223.884624]
Jul 21 11:26:35 bubba [<ffffffffa003f2a6>] fcoe_interface_cleanup+0x188/0x193 [fcoe]
Jul 21 11:26:35 bubba [  223.885163]
Jul 21 11:26:35 bubba [<ffffffffa003f303>] fcoe_destroy+0x52/0x72 [fcoe]
Jul 21 11:26:35 bubba [  223.885502]
Jul 21 11:26:35 bubba [<ffffffffa00340a4>] fcoe_transport_destroy+0xab/0x110 [libfcoe]
Jul 21 11:26:35 bubba [  223.886045]
Jul 21 11:26:35 bubba [<ffffffff81056153>] param_attr_store+0x43/0x62
Jul 21 11:26:35 bubba [  223.886385]
Jul 21 11:26:35 bubba [<ffffffff8105602d>] module_attr_store+0x21/0x25
Jul 21 11:26:35 bubba [  223.886728]
Jul 21 11:26:35 bubba [<ffffffff8114c23d>] sysfs_write_file+0x103/0x13f
Jul 21 11:26:35 bubba [  223.887068]
Jul 21 11:26:35 bubba [<ffffffff810f3e7b>] vfs_write+0xa7/0xfa
Jul 21 11:26:35 bubba [  223.887406]
Jul 21 11:26:35 bubba [<ffffffff810f4073>] sys_write+0x45/0x69
Jul 21 11:26:35 bubba [  223.887742]
Jul 21 11:26:35 bubba [<ffffffff815252bb>] system_call_fastpath+0x16/0x1b
Jul 21 11:26:35 bubba [  223.888083]
Jul 21 11:26:35 bubba [  223.888084] other info that might help us debug this:
Jul 21 11:26:35 bubba [  223.888085]
Jul 21 11:26:35 bubba [  223.888879]  Possible unsafe locking scenario:
Jul 21 11:26:35 bubba [  223.888881]
Jul 21 11:26:35 bubba [  223.889411]        CPU0                    CPU1
Jul 21 11:26:35 bubba [  223.889683]        ----                    ----
Jul 21 11:26:35 bubba [  223.889955]   lock(
Jul 21 11:26:35 bubba rtnl_mutex
Jul 21 11:26:35 bubba );
Jul 21 11:26:35 bubba [  223.890349]                                lock(
Jul 21 11:26:35 bubba (&fip->recv_work)
Jul 21 11:26:35 bubba );
Jul 21 11:26:35 bubba [  223.890751]                                lock(
Jul 21 11:26:35 bubba rtnl_mutex
Jul 21 11:26:35 bubba );
Jul 21 11:26:35 bubba [  223.891154]   lock(
Jul 21 11:26:35 bubba (&fip->recv_work)
Jul 21 11:26:35 bubba );
Jul 21 11:26:35 bubba [  223.891549]
Jul 21 11:26:35 bubba [  223.891550]  *** DEADLOCK ***
Jul 21 11:26:35 bubba [  223.891551]
Jul 21 11:26:35 bubba [  223.892347] 6 locks held by lockdeptest.sh/3464:
Jul 21 11:26:35 bubba [  223.892621]  #0:
Jul 21 11:26:35 bubba (&buffer->mutex
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba , at:
Jul 21 11:26:35 bubba [<ffffffff8114c171>] sysfs_write_file+0x37/0x13f
Jul 21 11:26:35 bubba [  223.893359]  #1:
Jul 21 11:26:35 bubba (s_active
Jul 21 11:26:35 bubba ){++++.+}
Jul 21 11:26:35 bubba , at:
Jul 21 11:26:35 bubba [<ffffffff8114c21c>] sysfs_write_file+0xe2/0x13f
Jul 21 11:26:35 bubba [  223.894094]  #2:
Jul 21 11:26:35 bubba (param_lock
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba , at:
Jul 21 11:26:35 bubba [<ffffffff81056146>] param_attr_store+0x36/0x62
Jul 21 11:26:35 bubba [  223.894835]  #3:
Jul 21 11:26:35 bubba (ft_mutex
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba , at:
Jul 21 11:26:35 bubba [<ffffffffa0034017>] fcoe_transport_destroy+0x1e/0x110 [libfcoe]
Jul 21 11:26:35 bubba [  223.895574]  #4:
Jul 21 11:26:35 bubba (fcoe_config_mutex
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba , at:
Jul 21 11:26:35 bubba [<ffffffffa003f2c9>] fcoe_destroy+0x18/0x72 [fcoe]
Jul 21 11:26:35 bubba [  223.896314]  #5:
Jul 21 11:26:35 bubba (rtnl_mutex
Jul 21 11:26:35 bubba ){+.+.+.}
Jul 21 11:26:35 bubba , at:
Jul 21 11:26:35 bubba [<ffffffff813e8233>] rtnl_lock+0x12/0x14
Jul 21 11:26:35 bubba [  223.897047]
Jul 21 11:26:35 bubba [  223.897048] stack backtrace:
Jul 21 11:26:35 bubba [  223.897578] Pid: 3464, comm: lockdeptest.sh Not tainted 3.0.0-rc7+ #1
Jul 21 11:26:35 bubba [  223.897853] Call Trace:
Jul 21 11:26:35 bubba [  223.898128]  [<ffffffff81068e16>] print_circular_bug+0x1f8/0x209
Jul 21 11:26:35 bubba [  223.898416]  [<ffffffff8106b93e>] __lock_acquire+0xb1d/0xe2c
Jul 21 11:26:35 bubba [  223.898699]  [<ffffffff810531f1>] ? wait_on_cpu_work+0xe6/0xe6
Jul 21 11:26:35 bubba [  223.898982]  [<ffffffff8106c14a>] lock_acquire+0xd2/0xf7
Jul 21 11:26:35 bubba [  223.899263]  [<ffffffff810531f1>] ? wait_on_cpu_work+0xe6/0xe6
Jul 21 11:26:35 bubba [  223.899547]  [<ffffffff8104a097>] ? mod_timer+0x8f/0x98
Jul 21 11:26:35 bubba [  223.899827]  [<ffffffff81053241>] wait_on_work+0x50/0xbd
Jul 21 11:26:35 bubba [  223.900108]  [<ffffffff810531f1>] ? wait_on_cpu_work+0xe6/0xe6
Jul 21 11:26:35 bubba [  223.900390]  [<ffffffff81053b32>] __cancel_work_timer+0xb6/0xf4
Jul 21 11:26:35 bubba [  223.900671]  [<ffffffff81053b8a>] cancel_work_sync+0xb/0xd
Jul 21 11:26:35 bubba [  223.900953]  [<ffffffffa00317e6>] fcoe_ctlr_destroy+0x1d/0x67 [libfcoe]
Jul 21 11:26:35 bubba [  223.901237]  [<ffffffffa003e51e>] fcoe_interface_release+0x21/0x45 [fcoe]
Jul 21 11:26:35 bubba [  223.901522]  [<ffffffffa003e4fd>] ? fcoe_enable+0x6b/0x6b [fcoe]
Jul 21 11:26:35 bubba [  223.901803]  [<ffffffff811fbbe6>] kref_put+0x43/0x4d
Jul 21 11:26:35 bubba [  223.902083]  [<ffffffffa003ebba>] fcoe_interface_put+0x17/0x19 [fcoe]
Jul 21 11:26:35 bubba [  223.902367]  [<ffffffffa003f2a6>] fcoe_interface_cleanup+0x188/0x193 [fcoe]
Jul 21 11:26:35 bubba [  223.902653]  [<ffffffff8151dd36>] ? mutex_lock_nested+0x3b/0x40
Jul 21 11:26:35 bubba [  223.902939]  [<ffffffffa003f303>] fcoe_destroy+0x52/0x72 [fcoe]
Jul 21 11:26:35 bubba [  223.903223]  [<ffffffffa00340a4>] fcoe_transport_destroy+0xab/0x110 [libfcoe]
Jul 21 11:26:35 bubba [  223.903508]  [<ffffffff81056153>] param_attr_store+0x43/0x62
Jul 21 11:26:35 bubba [  223.903792]  [<ffffffff8105602d>] module_attr_store+0x21/0x25
Jul 21 11:26:35 bubba [  223.904075]  [<ffffffff8114c23d>] sysfs_write_file+0x103/0x13f
Jul 21 11:26:35 bubba [  223.904357]  [<ffffffff810f3e7b>] vfs_write+0xa7/0xfa
Jul 21 11:26:35 bubba [  223.904642]  [<ffffffff810f51d6>] ? fget_light+0x35/0x96
Jul 21 11:26:35 bubba [  223.904923]  [<ffffffff810f4073>] sys_write+0x45/0x69
Jul 21 11:26:35 bubba [  223.905204]  [<ffffffff815252bb>] system_call_fastpath+0x16/0x1b
Jul 21 11:26:36 bubba [  223.964438] ixgbe 0000:05:00.0: eth3: detected SFP+: 5
Jul 21 11:26:37 bubba [  225.196702] ixgbe 0000:05:00.0: eth3: NIC Link is Up 10 Gbps, Flow Control: None

Signed-off-by: Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Reviewed-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-08-28 19:38:43 -07:00
..
accessibility
acpi Merge branch 'battery' into release 2011-08-05 22:16:42 -04:00
amba
ata drivers/ata/sata_dwc_460ex.c: add missing kfree 2011-08-18 23:58:11 -04:00
atm atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
auxdisplay
base Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2011-08-17 13:15:25 -07:00
bcma Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
block Merge branch 'stable/for-jens' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus 2011-08-09 20:43:26 +02:00
bluetooth
cdrom drivers/cdrom/cdrom.c: relax check on dvd manufacturer value 2011-08-02 12:43:50 +02:00
char net: Compute protocol sequence numbers and fragment IDs using MD5. 2011-08-06 18:33:19 -07:00
clk
clocksource Merge branch 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-07-23 10:34:47 -07:00
connector proc_fork_connector: a lockless ->real_parent usage is not safe 2011-07-28 18:26:32 -07:00
cpufreq Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2011-07-26 09:21:09 -07:00
cpuidle cpuidle: stop depending on pm_idle 2011-08-03 19:06:37 -04:00
crypto n2_crypto: Attach on Niagara-T3. 2011-07-28 01:30:07 -07:00
dca
dio
dma Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-08-10 17:37:17 -07:00
edac i7core_edac: fixed typo in error count calculation 2011-08-18 14:07:15 -07:00
eisa eisa/pci_eisa.c: fix BUG introduced by 005bdad7b8 2011-08-04 06:32:51 -10:00
firewire Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2011-08-21 18:13:19 -07:00
firmware Merge branch 'pstore-efi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2011-08-02 21:18:39 -10:00
gpio Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6 2011-08-01 06:13:48 -10:00
gpu drm/radeon: Extended DDC Probing for Toshiba L300D Radeon Mobility X1100 HDMI-A Connector 2011-08-23 13:24:55 +01:00
hid Merge branches 'roccat', 'upstream' and 'wiimote' into for-linus 2011-07-22 22:47:08 +02:00
hwmon hwmon: (ibmaem) add missing kfree 2011-08-11 10:14:18 -07:00
hwspinlock
i2c i2c-eg20t : Fix the issue of Combined R/W transfer mode 2011-07-27 00:02:28 +01:00
ide drivers/ide/cy82c693.c: Add missing pci_dev_put 2011-08-04 01:30:34 -07:00
idle
ieee802154
infiniband Merge branches 'ipoib' and 'iser' into for-next 2011-08-17 10:57:43 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2011-08-03 22:00:09 -10:00
iommu
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2011-07-28 05:58:19 -07:00
leds arch/arm/mach-ux500/board-u5500.c: calibrate ALS input voltage 2011-07-25 20:57:15 -07:00
lguest
macintosh
mca
md dm table: set flush capability based on underlying devices 2011-08-02 12:32:08 +01:00
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2011-07-30 00:08:53 -07:00
memstick
message Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-07-30 08:36:02 -10:00
mfd mfd: Fix mismatch in twl4030 mutex lock-unlock 2011-07-31 23:28:27 +02:00
misc mmc: cb710: fix possible pci_dev leak in cb710_pci_configure() 2011-08-13 14:50:23 -04:00
mmc mmc: dw_mmc: Fix DDR mode support. 2011-08-13 14:50:32 -04:00
mtd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
net Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2011-08-11 23:09:46 -07:00
nfc NFC: pn533: use after free in pn533_disconnect() 2011-07-26 16:27:24 -04:00
nubus
of Revert "dt: add of_alias_scan and of_alias_get_id" 2011-08-04 11:26:24 +01:00
oprofile atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
parisc
parport Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2011-07-25 23:09:27 -07:00
pci pci: fix new kernel-doc warning in pci.c 2011-08-20 18:02:32 -07:00
pcmcia Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2011-07-31 06:23:08 -10:00
platform acer-wmi: support Lenovo ideapad S205 wifi switch 2011-08-05 15:21:52 -04:00
pnp Merge 'akpm' patch series 2011-07-25 21:00:19 -07:00
power s3c-adc-battery: Fix compilation error due to missing header (module.h) 2011-08-19 21:01:46 +04:00
pps
ps3
ptp
rapidio
regulator Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 2011-08-01 14:05:46 -10:00
rtc Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-08-17 10:28:33 -07:00
s390 [S390] qdio: Use kstrtoul_from_user 2011-08-03 16:44:21 +02:00
sbus atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
scsi [SCSI] fcoe: Fix deadlock between fip's recv_work and rtnl 2011-08-28 19:38:43 -07:00
sfi
sh Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x 2011-08-01 06:10:16 -10:00
sn
spi spi/pl022: remove function cannot exit 2011-08-02 14:54:11 +01:00
ssb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-07-25 13:56:39 -07:00
staging gma500: kill MIPI interface types 2011-08-16 07:22:16 -07:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2011-08-03 15:12:09 -10:00
tc
telephony
thermal thermal: make THERMAL_HWMON implementation fully internal 2011-08-02 14:51:57 -04:00
tty sh: Fix boot crash related to SCI 2011-08-07 15:51:45 -07:00
uio Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2011-07-25 23:06:24 -07:00
usb USB: Serial: Add PID(0xF7C0) to FTDI SIO driver for a zeitcontrol-device 2011-08-10 22:11:45 -07:00
uwb
vhost atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
video savagedb: Fix typo causing regression in savage4 series video chip detection 2011-08-06 12:02:40 -07:00
virt drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c 2011-07-22 09:24:39 -05:00
virtio virtio: expose for non-virtualization users too 2011-07-23 16:20:30 +09:30
vlynq
w1 atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
watchdog watchdog: Cleanup WATCHDOG_CORE help text 2011-08-02 08:23:07 +00:00
xen xen: self-balloon needs module.h 2011-08-16 07:23:34 -07:00
zorro
Kconfig Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2011-07-25 22:59:39 -07:00