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

net: qca_spi: Avoid high load if QCA7000 is not available

Browse Source 
In case the QCA7000 is not available via SPI (e.g. in reset),
the driver will cause a high load. The reason for this is
that the synchronization is never finished and schedule()
is never called. Since the synchronization is not timing
critical, it's safe to drop this from the scheduling condition.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: 291ab06ecf ("net: qualcomm: new Ethernet over SPI driver for QCA7000")
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Wahren 2023-06-14 23:06:56 +02:00 committed by David S. Miller
parent c938ab4da0
commit 92717c2356
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/qualcomm/qca_spi.c
View File

@ -582,8 +582,7 @@ qcaspi_spi_thread(void *data)
while (!kthread_should_stop()) {
set_current_state(TASK_INTERRUPTIBLE);
if ((qca->intr_req == qca->intr_svc) &&
(qca->txr.skb[qca->txr.head] == NULL) &&
(qca->sync == QCASPI_SYNC_READY))
!qca->txr.skb[qca->txr.head])
schedule();
set_current_state(TASK_RUNNING);