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| author | Li Zhong <zhong@linux.vnet.ibm.com> | 2013-12-12 22:39:55 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-14 01:04:13 -0500 |
| commit | 1cbac010529b393edbeffd0fb7e7e710e14084ac (patch) | |
| tree | a6f2b31410927c7569ab4154c4c79826f343bb12 /net/packet | |
| parent | f085ff1c131c08fb6b34802f63c22921c4d8c506 (diff) | |
| download | linux-1cbac010529b393edbeffd0fb7e7e710e14084ac.tar.gz linux-1cbac010529b393edbeffd0fb7e7e710e14084ac.tar.bz2 linux-1cbac010529b393edbeffd0fb7e7e710e14084ac.zip | |
packet: fix using smp_processor_id() in preemptible code
This patches fixes the following warning by replacing smp_processor_id()
with raw_smp_processor_id():
[ 11.120893] BUG: using smp_processor_id() in preemptible [00000000] code: arping/3510
[ 11.120913] caller is .packet_sendmsg+0xc14/0xe68
[ 11.120920] CPU: 13 PID: 3510 Comm: arping Not tainted 3.13.0-rc3-next-20131211-dirty #1
[ 11.120926] Call Trace:
[ 11.120932] [c0000001f803f6f0] [c0000000000138dc] .show_stack+0x110/0x25c (unreliable)
[ 11.120942] [c0000001f803f7e0] [c00000000083dd24] .dump_stack+0xa0/0x37c
[ 11.120951] [c0000001f803f870] [c000000000493fd4] .debug_smp_processor_id+0xfc/0x12c
[ 11.120959] [c0000001f803f900] [c0000000007eba78] .packet_sendmsg+0xc14/0xe68
[ 11.120968] [c0000001f803fa80] [c000000000700968] .sock_sendmsg+0xa0/0xe0
[ 11.120975] [c0000001f803fbf0] [c0000000007014d8] .SyS_sendto+0x100/0x148
[ 11.120983] [c0000001f803fd60] [c0000000006fff10] .SyS_socketcall+0x1c4/0x2e8
[ 11.120990] [c0000001f803fe30] [c00000000000a1e4] syscall_exit+0x0/0x9c
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 9d70f1349926..cc803c63059a 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -310,7 +310,7 @@ static bool packet_use_direct_xmit(const struct packet_sock *po) static u16 packet_pick_tx_queue(struct net_device *dev) { - return (u16) smp_processor_id() % dev->real_num_tx_queues; + return (u16) raw_smp_processor_id() % dev->real_num_tx_queues; } /* register_prot_hook must be invoked with the po->bind_lock held, |