diff options
| author | Vladislav Zolotarov <vladz@broadcom.com> | 2010-07-21 05:59:01 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-07-21 11:11:54 -0700 |
| commit | a13773a53faa28cf79982601b6fc9ddb0ca45f36 (patch) | |
| tree | 1eb2a88545d8ffe742648886b9da48446b6f0eb0 /drivers/net/bnx2x.h | |
| parent | 573201f36fd9c7c6d5218cdcd9948cee700b277d (diff) | |
| download | lwn-a13773a53faa28cf79982601b6fc9ddb0ca45f36.tar.gz lwn-a13773a53faa28cf79982601b6fc9ddb0ca45f36.zip | |
bnx2x: Protect a SM state change
Bug fix: Protect the statistics state machine state update with a
spinlock. Otherwise there was a race condition that would cause the
statistics to stay enabled despite the fact that they were disabled in
the LINK_DOWN event handler.
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
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>
Diffstat (limited to 'drivers/net/bnx2x.h')
| -rw-r--r-- | drivers/net/bnx2x.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/bnx2x.h b/drivers/net/bnx2x.h index 8bd23687c530..bb0872a63315 100644 --- a/drivers/net/bnx2x.h +++ b/drivers/net/bnx2x.h @@ -1062,6 +1062,10 @@ struct bnx2x { /* used to synchronize stats collecting */ int stats_state; + + /* used for synchronization of concurrent threads statistics handling */ + spinlock_t stats_lock; + /* used by dmae command loader */ struct dmae_command stats_dmae; int executer_idx; |