netfilter: nft_queue: use raw_smp_processor_id()
authorPablo Neira Ayuso <pablo@netfilter.org>
Sun, 11 Dec 2016 19:46:51 +0000 (20:46 +0100)
committerPablo Neira Ayuso <pablo@netfilter.org>
Wed, 14 Dec 2016 22:39:01 +0000 (23:39 +0100)
commitc2e756ff9e699865d294cdc112acfc36419cf5cc
tree3937f4311cceabb642712adfbf89b5dc3a4df82a
parent8010d7feb2f0367ae573ad601b2905e29db50cd3
netfilter: nft_queue: use raw_smp_processor_id()

Using smp_processor_id() causes splats with PREEMPT_RCU:

[19379.552780] BUG: using smp_processor_id() in preemptible [00000000] code: ping/32389
[19379.552793] caller is debug_smp_processor_id+0x17/0x19
[...]
[19379.552823] Call Trace:
[19379.552832]  [<ffffffff81274e9e>] dump_stack+0x67/0x90
[19379.552837]  [<ffffffff8129a4d4>] check_preemption_disabled+0xe5/0xf5
[19379.552842]  [<ffffffff8129a4fb>] debug_smp_processor_id+0x17/0x19
[19379.552849]  [<ffffffffa07c42dd>] nft_queue_eval+0x35/0x20c [nft_queue]

No need to disable preemption since we only fetch the numeric value, so
let's use raw_smp_processor_id() instead.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
net/netfilter/nft_queue.c