bianbu-repo-mirror/bianbu-linux-6.6
1
0
Fork 0
mirror of https://gitee.com/bianbu-linux/linux-6.6 synced 2025-07-06 00:13:38 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

bnxt_en: Fix race when modifying pause settings.

Browse source 
The driver was modified to not rely on rtnl lock to protect link
settings about 2 years ago.  The pause setting was missed when
making that change.  Fix it by acquiring link_lock mutex before
calling bnxt_hwrm_set_pause().

Fixes: e2dc9b6e38 ("bnxt_en: Don't use rtnl lock to protect link change logic in workqueue.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vasundhara Volam 2020-07-11 20:48:23 -04:00 • committed by David S. Miller
parent 1df0d89604
commit 163e9ef636
1 changed files with 4 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

5
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
View file

@ -1765,8 +1765,11 @@ static int bnxt_set_pauseparam(struct net_device *dev,
if (epause->tx_pause)
link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_TX;
if (netif_running(dev))
if (netif_running(dev)) {
mutex_lock(&bp->link_lock);
rc = bnxt_hwrm_set_pause(bp);
mutex_unlock(&bp->link_lock);
}
return rc;
}