nfp: add the PF driver - net-next.git

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author	Jakub Kicinski <jakub.kicinski@netronome.com>	2017-02-09 09:17:38 -0800
committer	David S. Miller <davem@davemloft.net>	2017-02-10 15:52:27 -0500
commit	63461a028f761f8e45d22d06fb7e7468def024b7 (patch)
tree	e92dbfbbc3b48bf496d10002c3f5b39b05a86bf5 /sound/soc/codecs/wm8804.c
parent	fdace6c224e9fc0e81337b6fee3cfd136824c983 (diff)

nfp: add the PF driver

Add PF driver for NFP4000 and NFP6000. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>

Diffstat (limited to 'sound/soc/codecs/wm8804.c')

0 files changed, 0 insertions, 0 deletions

synchronize_rcu_expedited The kernel showing this callchain was built with CONFIG_PREEMPT_RCU=y, which caused the code to try using workqueues before they were initialized, which did not go well. This commit therefore reworks RCU to permit synchronous grace periods to proceed during this mid-boot phase. This commit is therefore a fix to a regression introduced in v4.9, and is therefore being put forward post-merge-window in v4.10. This commit sets a flag from the existing rcu_scheduler_starting() function which causes all synchronous grace periods to take the expedited path. The expedited path now checks this flag, using the requesting task to drive the expedited grace period forward during the mid-boot phase. Finally, this flag is updated by a core_initcall() function named rcu_exp_runtime_mode(), which causes the runtime codepaths to be used. Note that this arrangement assumes that tasks are not sent POSIX signals (or anything similar) from the time that the first task is spawned through core_initcall() time. Fixes: 8b355e3bc140 ("rcu: Drive expedited grace periods from workqueue") Reported-by: "Zheng, Lv" <lv.zheng@intel.com> Reported-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Stan Kain <stan.kain@gmail.com> Tested-by: Ivan <waffolz@hotmail.com> Tested-by: Emanuel Castelo <emanuel.castelo@gmail.com> Tested-by: Bruno Pesavento <bpesavento@infinito.it> Tested-by: Borislav Petkov <bp@suse.de> Tested-by: Frederic Bezies <fredbezies@gmail.com> Cc: <stable@vger.kernel.org> # 4.9.0-

Diffstat (limited to 'net/ipv6/calipso.c')


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