iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cxgb4: avoid enabling napi twice to the same queue

Browse Source 
Take uld mutex to avoid race between cxgb_up() and
cxgb4_register_uld() to enable napi for the same uld
queue.

Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ganesh Goudar 2017-05-31 18:26:28 +05:30 committed by David S. Miller
parent 6e80ac5cc9
commit e7519f9926
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View File

@ -2196,10 +2196,14 @@ static int cxgb_up(struct adapter *adap)
if (err)
goto irq_err;
}
mutex_lock(&uld_mutex);
enable_rx(adap);
t4_sge_start(adap);
t4_intr_enable(adap);
adap->flags |= FULL_INIT_DONE;
mutex_unlock(&uld_mutex);
notify_ulds(adap, CXGB4_STATE_UP);
#if IS_ENABLED(CONFIG_IPV6)
update_clip(adap);