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2011-05-23cfq-iosched: Make IO merge related stats per cpuVivek Goyal
Make BLKIO_STAT_MERGED per cpu hence gettring rid of need of taking blkg->stats_lock. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-05-23cfq-iosched: Fix a memory leak of per cpu stats for root groupVivek Goyal
We allocated per cpu stats struct for root group but did not free it. Fix it. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-05-23sh_mobile: Add MSTP clock for MERAMDamian
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23sh_mobile_meram: Add support for NV24 framebuffersDamian
Since the NV24 framebuffer has a CbCr plane that is twice as wide as the Y plane, it needs to be handled as a special case. Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23sh_mobile_meram: MERAM framework for LCDCDamian
Based on the patch by Takanari Hayama <taki@igel.co.jp> Adds support framework necessary to use Media RAM (MERAM) caching functionality with the LCDC. The MERAM is accessed through up to 4 Interconnect Buffers (ICBs). ICB numbers and MERAM address ranges to use are specified in by filling in the .meram_cfg member of the LCDC platform data Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23SH: SE7751: Fix pcibios_map_platform_irq prototype.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: nilfs2: use mark_buffer_dirty to mark btnode or meta data dirty nilfs2: always set back pointer to host inode in mapping->host nilfs2: get rid of NILFS_I_NILFS nilfs2: use list_first_entry nilfs2: use empty_aops for gc-inodes nilfs2: implement resize ioctl nilfs2: add truncation routine of segment usage file nilfs2: add routine to move secondary super block nilfs2: add ioctl which limits range of segment to be allocated nilfs2: zero fill unused portion of super root block nilfs2: super root size should change depending on inode size nilfs2: get rid of private page allocator nilfs2: merge list_del()/list_add_tail() to list_move_tail()
2011-05-23sh: remove warning and warning_symbol from struct stacktrace_opsRichard Weinberger
Both warning and warning_symbol are nowhere used. Let's get rid of them. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23sh: wire up sys_sendmmsg.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23clocksource: sh_tmu: Runtime PM supportMagnus Damm
Add Runtime PM support to the TMU driver. The hardware device is enabled as long as the clocksource or the clockevent portion of the driver is used. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23clocksource: sh_tmu: __clocksource_updatefreq_hz() updateMagnus Damm
This patch updates the clocksource part of the TMU driver to make use of the __clocksource_updatefreq_hz() function. Without this patch the old code uses clocksource_register() together with a hack that assumes a never changing clock rate (see clk_enable(), clk_get_rate() and clk_disable()). The patch uses clocksource_register_hz() with 1 Hz as initial value, then lets the ->enable() callback update the value with __clocksource_updatefreq_hz() once the struct clk has been enabled and the frequency is stable. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23clocksource: sh_cmt: Runtime PM supportMagnus Damm
Add Runtime PM support to the CMT driver. The hardware device is enabled as long as the clocksource or the clockevent portion of the driver is used. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23clocksource: sh_cmt: __clocksource_updatefreq_hz() updateMagnus Damm
This patch updates the clocksource part of the CMT driver to make use of the __clocksource_updatefreq_hz() function. Without this patch the old code uses clocksource_register() together with a hack that assumes a never changing clock rate (see clk_enable(), clk_get_rate() and clk_disable()). The patch uses clocksource_register_hz() with 1 Hz as initial value, then lets the ->enable() callback update the value with __clocksource_updatefreq_hz() once the struct clk has been enabled and the frequency is stable. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23OMAP: DSS2: Add support for NV12 formatAmber Jain
Add the support for NV12 color format. Configure base address for UV component of NV12 color format. Change the way chroma scaling is handled for YUV formats on OMAP4 by enabling chroma-resampling for video pipeline and hence using FIR2 register set for scaling UV. Changes to _dispc_set_scaling(), because of the reason above, are: - call _dispc_set_scaling_common() to handle scaling for all color formats except for OMAP4 where it only handles scaling for RGB or Y-component - call _dispc_set_scaling_uv() for special handling required for UV component on OMAP4. - dispc_set_scaling_uv() also resets chroma-resampling bit for RGB color modes. Contains chroma scaling (_dispc_set_scaling_uv) design and implemented by Lajos Molnar <molnar@ti.com> Signed-off-by: Amber Jain <amber@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-05-23OMAP: DSS2: Add new registers for NV12 supportAmber Jain
Add new registers specific to UV color component that are introduced in OMAP4. Add simple helper functions to configure the newly added registers. These new registers are mainly: - UV base address registers used specifically for NV12 color-format - FIR registers used for UV-color-component scaling on OMAP4 - Accumulator registers used for UV-color-component scaling Add these new registers to save/restore and DUMPREG functions. Also add two new features for OMAP4: - FEAT_HANDLE_UV_SEPARATE - this is used on OMAP4 as UV color-component requires separate handling. - FEAT_ATTR2 - this is used on OMAP4 to configure new ATTRIBUTES2 register. Signed-off-by: Amber Jain <amber@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-05-23OMAP: DSS2: Use for loop where ever possible in SR(), RR()Amber Jain
Use for loop instead of individual entries for OVL_FIR_COEF_H, OVL_FIR_COEF_HV, OVL_FIR_COEF_V and OVL_CONV_COEF in SR() and RR(). Signed-off-by: Amber Jain <amber@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-05-23OMAP: DSS2: Ensure non-zero FIR values are configuredAmber Jain
FIR values can never be zero as per TRM, and the current code writes zero when scaling is not used. It was not causing any problem as scaling was disabled when zero was written. Its still safer to not write zero to it in any case. Now we configure correct FIR values even when scaling is not used (i.e. set FIR to 1024 when scaling is not used), but the scaling enable bits are still kept off if the scaling is not needed. Signed-off-by: Amber Jain <amber@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-05-23OMAP: DSS2: Add new color formats for OMAP4Amber Jain
Add new color formats supported by OMAP4: NV12, RGBA16, RGBX16, ARGB16_1555, XRGB16_1555. NV12 color format is defined here, its support in DSS will be added separately. Signed-off-by: Amber Jain <amber@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-05-23UBIFS: switch to dynamic printksArtem Bityutskiy
Switch to debugging using dynamic printk (pr_debug()). There is no good reason to carry custom debugging prints if there is so cool and powerful generic dynamic printk infrastructure, see Documentation/dynamic-debug-howto.txt. With dynamic printks we can switch on/of individual prints, per-file, per-function and per format messages. This means that instead of doing old-fashioned echo 1 > /sys/module/ubifs/parameters/debug_msgs to enable general messages, we can do: echo 'format "UBIFS DBG gen" +ptlf' > control to enable general messages and additionally ask the dynamic printk infrastructure to print process ID, line number and function name. So there is no reason to keep UBIFS-specific crud if there is more powerful generic thing. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6: ide/ide-scan-pci.c: Use for_each_pci_dev(). ide: Use linux/mutex.h IDE: ide-floppy, remove unnecessary NULL check drivers/ide/pmac.c: Remove unnecessary casts of pci_get_drvdata ide: fix use after free in ide-acpi
2011-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: (28 commits) sparc32: fix build, fix missing cpu_relax declaration SCHED_TTWU_QUEUE is not longer needed since sparc32 now implements IPI sparc32,leon: Remove unnecessary page_address calls in LEON DMA API. sparc: convert old cpumask API into new one sparc32, sun4d: Implemented SMP IPIs support for SUN4D machines sparc32, sun4m: Implemented SMP IPIs support for SUN4M machines sparc32,leon: Implemented SMP IPIs for LEON CPU sparc32: implement SMP IPIs using the generic functions sparc32,leon: SMP power down implementation sparc32,leon: added some SMP comments sparc: add {read,write}*_be routines sparc32,leon: don't rely on bootloader to mask IRQs sparc32,leon: operate on boot-cpu IRQ controller registers sparc32: always define boot_cpu_id sparc32: removed unused code, implemented by generic code sparc32: avoid build warning at mm/percpu.c:1647 sparc32: always register a PROM based early console sparc32: probe for cpu info only during startup sparc: consolidate show_cpuinfo in cpu.c sparc32,leon: implement genirq CPU affinity ...
2011-05-22Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds
* 'for-linus' of git://neil.brown.name/md: md: allow resync_start to be set while an array is active. md/raid10: reformat some loops with less indenting. md/raid10: remove unused variable. md/raid10: make more use of 'slot' in raid10d. md/raid10: some tidying up in fix_read_error md/raid1: improve handling of pages allocated for write-behind. md/raid1: try fix_sync_read_error before process_checks. md/raid1: tidy up new functions: process_checks and fix_sync_read_error. md/raid1: split out two sub-functions from sync_request_write md: make error_handler functions more uniform and correct. md/multipath: discard ->working_disks in favour of ->degraded md/raid1: clean up read_balance. md: simplify raid10 read_balance md/bitmap: fix saving of events_cleared and other state. md: reject a re-add request that cannot be honoured. md: Fix race when creating a new md device.
2011-05-22wireless: fix fatal kernel-doc error + warning in mac80211.hRandy Dunlap
Fix new kernel-doc Error and Warning in <net/mac80211.h>: Error(linux-2.6.39-git5/include/net/mac80211.h:550): cannot understand prototype: 'struct ieee80211_sched_scan_ies ' Warning(linux-2.6.39-git5/include/net/mac80211.h:2289): No description found for parameter 'sta' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-22x86: setup_smep needs to be __cpuinitLinus Torvalds
The setup_smep function gets calle at resume time too, and is thus not a pure __init function. When marked as __init, it gets thrown out after the kernel has initialized, and when the kernel is suspended and resumed, the code will no longer be around, and we'll get a nice "kernel tried to execute NX-protected page" oops because the page is no longer marked executable. Reported-and-tested-by: Parag Warudkar <parag.lkml@gmail.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: "H. Peter Anvin" <hpa@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-22Remove prefetch() from <linux/skbuff.h> and "netlabel_addrlist.h"Linus Torvalds
Commit e66eed651fd1 ("list: remove prefetching from regular list iterators") removed the include of prefetch.h from list.h. The skbuff list traversal still had them. Quoth David Miller: "Please just remove the prefetches. Those are modelled after list.h as I intend to eventually convert SKB list handling to "struct list_head" but we're not there yet. Therefore if we kill prefetches from list.h we should kill it from these things in skbuff.h too." Requested-by: David Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-22Add appropriate <linux/prefetch.h> include for prefetch usersPaul Gortmaker
After discovering that wide use of prefetch on modern CPUs could be a net loss instead of a win, net drivers which were relying on the implicit inclusion of prefetch.h via the list headers showed up in the resulting cleanup fallout. Give them an explicit include via the following $0.02 script. ========================================= #!/bin/bash MANUAL="" for i in `git grep -l 'prefetch(.*)' .` ; do grep -q '<linux/prefetch.h>' $i if [ $? = 0 ] ; then continue fi ( echo '?^#include <linux/?a' echo '#include <linux/prefetch.h>' echo . echo w echo q ) | ed -s $i > /dev/null 2>&1 if [ $? != 0 ]; then echo $i needs manual fixup MANUAL="$i $MANUAL" fi done echo ------------------- 8\<---------------------- echo vi $MANUAL ========================================= Signed-off-by: Paul <paul.gortmaker@windriver.com> [ Fixed up some incorrect #include placements, and added some non-network drivers and the fib_trie.c case - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-22sparc32: fix build, fix missing cpu_relax declarationSam Ravnborg
Fix following sparc (32 bit) build error: CC arch/sparc/kernel/asm-offsets.s In file included from include/linux/seqlock.h:29:0, from include/linux/time.h:8, from include/linux/timex.h:56, from include/linux/sched.h:57, from arch/sparc/kernel/asm-offsets.c:13: include/linux/spinlock.h: In function 'spin_unlock_wait': include/linux/spinlock.h:360:2: error: implicit declaration of function 'cpu_relax' Most likely caused by commit e66eed651fd1 ("list: remove prefetching from regular list iterators") due to include changes. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-23dmaengine: shdma: synchronize RCU before freeing, simplify spinlockGuennadi Liakhovetski
List elements, deleted using list_del_rcu(), cannot be freed without synchronising RCU. Further, the spinlock, used to protect the RCU writer, is called in process context, so, we don't have to save flags. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23dmaengine: shdma: add runtime- and system-level power managementGuennadi Liakhovetski
This patch extends and fixes runtime power management in the shdma driver to support powering down the DMA controller and adds support for system-level suspend and resume. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23dmaengine: shdma: fix lockingGuennadi Liakhovetski
Close multiple theoretical races, especially the one in .device_free_chan_resources(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23sh: sh-sci: sh7377 and sh73a0 build fixesMagnus Damm
Fix sh7377 and sh73a0 build failure: drivers/tty/serial/sh-sci.c: In function 'scif_txfill': drivers/tty/serial/sh-sci.c:338: error: implicit declaration of function 'sci_SCTFDR_in' drivers/tty/serial/sh-sci.c: In function 'scif_rxfill': drivers/tty/serial/sh-sci.c:351: error: implicit declaration of function 'sci_SCRFDR_in' make[3]: *** [drivers/tty/serial/sh-sci.o] Error 1 make[2]: *** [drivers/tty/serial] Error 2 make[1]: *** [drivers/tty] Error 2 make: *** [drivers] Error 2 Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23sh: cosmetic improvement: use an existing pointerGuennadi Liakhovetski
Use an existing local variable, instead of calculating the pointer multiple times explicitly. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <damm@opensource.se> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23serial: sh-sci: suspend/resume wakeup support V2Magnus Damm
This patch adds wakeup support to the sh-sci driver. The serial core deals with all details but defaults to wakeup disabled. So to make use of this feature enable wakeup in sysfs: echo enabled > /sys/class/tty/ttySC0/power/wakeup Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23serial: sh-sci: Runtime PM supportMagnus Damm
Add support for Runtime PM in the sh-sci driver. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23Merge branch 'sh/genirq-threading' into sh-latestPaul Mundt
2011-05-23Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
2011-05-22bnx2x: allow device properly initialize after hotplugDmitry Kravkov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22bnx2x: fix DMAE timeout according to hw specificationsDmitry Kravkov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22bnx2x: properly handle CFC DEL in cnic flowVladislav Zolotarov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22bnx2x: call dev_kfree_skb_any instead of dev_kfree_skbVladislav Zolotarov
replace function calls when possible call in both irq/non-irq contexts Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22net: filter: move forward declarations to avoid compile warningsHeiko Carstens
Get rid of this compile warning: In file included from arch/s390/kernel/compat_linux.c:37:0: include/linux/filter.h:139:23: warning: 'struct sk_buff' declared inside parameter list Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22pktgen: refactor pg_init() codeWANG Cong
This also shrinks the object size a little. text data bss dec hex filename 28834 186 8 29028 7164 net/core/pktgen.o 28816 186 8 29010 7152 net/core/pktgen.o.AFTER Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: "David Miller" <davem@davemloft.net>, Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22pktgen: use vzalloc_node() instead of vmalloc_node() + memset()WANG Cong
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22net: skb_trim explicitely check the linearity instead of data_lenEmmanuel Grumbach
The purpose of the check on data_len is to check linearity, so use the inline helper for this. No overhead and more explicit. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22ipv4: Give backtrace in ip_rt_bug().Dave Jones
Add a stack backtrace to the ip_rt_bug path for debugging Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22net: avoid synchronize_rcu() in dev_deactivate_manyEric Dumazet
dev_deactivate_many() issues one synchronize_rcu() call after qdiscs set to noop_qdisc. This call is here to make sure they are no outstanding qdisc-less dev_queue_xmit calls before returning to caller. But in dismantle phase, we dont have to wait, because we wont activate again the device, and we are going to wait one rcu grace period later in rollback_registered_many(). After this patch, device dismantle uses one synchronize_net() and one rcu_barrier() call only, so we have a ~30% speedup and a smaller RTNL latency. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Patrick McHardy <kaber@trash.net>, CC: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22net: remove synchronize_net() from netdev_set_master()Eric Dumazet
In the old days, we used to access dev->master in __netif_receive_skb() in a rcu_read_lock section. So one synchronize_net() call was needed in netdev_set_master() to make sure another cpu could not use old master while/after we release it. We now use netdev_rx_handler infrastructure and added one synchronize_net() call in bond_release()/bond_release_all() Remove the obsolete synchronize_net() from netdev_set_master() and add one in bridge del_nbp() after its netdev_rx_handler_unregister() call. This makes enslave -d a bit faster. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Jiri Pirko <jpirko@redhat.com> CC: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22rtnetlink: ignore NETDEV_RELEASE and NETDEV_JOIN eventAmerigo Wang
These two events are not expected to be caught by userspace. Signed-off-by: WANG Cong <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22net: rename NETDEV_BONDING_DESLAVE to NETDEV_RELEASEAmerigo Wang
s/NETDEV_BONDING_DESLAVE/NETDEV_RELEASE/ as Andy suggested. Signed-off-by: WANG Cong <amwang@redhat.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Neil Horman <nhorman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-22bridge: call NETDEV_JOIN notifiers when add a slaveAmerigo Wang
In the previous patch I added NETDEV_JOIN, now we can notify netconsole when adding a device to a bridge too. Signed-off-by: WANG Cong <amwang@redhat.com> Cc: Neil Horman <nhorman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>