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

can: ti_hecc: Fix napi poll return value for repoll

Browse Source 
After commit d75b1ade56 ("net: less interrupt masking in NAPI") napi
repoll is done only when work_done == budget.
So we need to return budget if there are still packets to receive.

Signed-off-by: Oliver Stäbler <oliver.staebler@bytesatwork.ch>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Oliver Stäbler 2017-11-20 14:45:15 +01:00 committed by Marc Kleine-Budde
parent 8bd13bd522
commit f6c23b174c
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/can/ti_hecc.c
View File

@ -637,6 +637,9 @@ static int ti_hecc_rx_poll(struct napi_struct *napi, int quota)
mbx_mask = hecc_read(priv, HECC_CANMIM); mbx_mask = hecc_read(priv, HECC_CANMIM);
mbx_mask |= HECC_TX_MBOX_MASK; mbx_mask |= HECC_TX_MBOX_MASK;
hecc_write(priv, HECC_CANMIM, mbx_mask); hecc_write(priv, HECC_CANMIM, mbx_mask);
} else {
/* repoll is done only if whole budget is used */
num_pkts = quota;
} }
return num_pkts; return num_pkts;