diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2014-10-23 15:57:27 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-26 22:46:04 -0400 |
| commit | bf1bac5b7882daa41249f85fbc97828f0597de5c (patch) | |
| tree | 2243934db57482a50d163c53db8cf7f5836dac22 /drivers/net | |
| parent | 96e4be06cbfcb8c9c2da7c77bacce0e56b581c0b (diff) | |
| download | linux-bf1bac5b7882daa41249f85fbc97828f0597de5c.tar.bz2 | |
net/mlx4_core: Call synchronize_irq() before freeing EQ buffer
After moving the EQ ownership to software effectively destroying it, call
synchronize_irq() to ensure that any handler routines running on other CPU
cores finish execution. Only then free the EQ buffer.
The same thing is done when we destroy a CQ which is one of the sources
generating interrupts. In the case of CQ we want to avoid completion handlers
on a CQ that was destroyed. In the case we do the same to avoid receiving
asynchronous events after the EQ has been destroyed and its buffers freed.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/eq.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index a49c9d11d8a5..49290a405903 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -1026,6 +1026,7 @@ static void mlx4_free_eq(struct mlx4_dev *dev, pr_cont("\n"); } } + synchronize_irq(eq->irq); mlx4_mtt_cleanup(dev, &eq->mtt); for (i = 0; i < npages; ++i) |