| commit | faff57a92ba1d7247c5e86ecea2886d2c9d54507 | |
| author | Eric Dumazet <edumazet@google.com> | |
| Mon, 13 May 2013 02:24:11 +0000 (13 02:24 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Tue, 14 May 2013 20:02:30 +0000 (14 13:02 -0700) | ||
| tree | 8e9fbdb7e277f538867bffa5f2bf6588310f4e09 | treesnapshot (tar.gz zip) |
| parent | a3659aa09a2ee7e0028349b9100d8b4a7750a4be | commitdiff |
net/802/mrp: fix lockdep splat
commit fb745e9a037895 ("net/802/mrp: fix possible race condition when
calling mrp_pdu_queue()") introduced a lockdep splat.
[ 19.735147] =================================
[ 19.735235] [ INFO: inconsistent lock state ]
[ 19.735324] 3.9.2-build-0063 #4 Not tainted
[ 19.735412] ---------------------------------
[ 19.735500] inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
[ 19.735592] rmmod/1840 [HC0[0]:SC0[0]:HE1:SE1] takes:
[ 19.735682] (&(&app->lock)->rlock#2){+.?...}, at: [<f862bb5b>]
mrp_uninit_applicant+0x69/0xba [mrp]
app->lock is normally taken under softirq context, so disable BH to
avoid the splat.
Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Ward <david.ward@ll.mit.edu>
Cc: Cong Wang <amwang@redhat.com>
Tested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit fb745e9a037895 ("net/802/mrp: fix possible race condition when
calling mrp_pdu_queue()") introduced a lockdep splat.
[ 19.735147] =================================
[ 19.735235] [ INFO: inconsistent lock state ]
[ 19.735324] 3.9.2-build-0063 #4 Not tainted
[ 19.735412] ---------------------------------
[ 19.735500] inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
[ 19.735592] rmmod/1840 [HC0[0]:SC0[0]:HE1:SE1] takes:
[ 19.735682] (&(&app->lock)->rlock#2){+.?...}, at: [<f862bb5b>]
mrp_uninit_applicant+0x69/0xba [mrp]
app->lock is normally taken under softirq context, so disable BH to
avoid the splat.
Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Ward <david.ward@ll.mit.edu>
Cc: Cong Wang <amwang@redhat.com>
Tested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/802/mrp.c | diffblobblamehistory |