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| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2019-10-09 07:41:08 +0300 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2021-07-25 12:36:25 +0300 |
| commit | c757096ea1033c46ab768709847f7776b7e92a92 (patch) | |
| tree | 4266fd517670b9a1c62c49a8375ee5139470199b /drivers/net/can/flexcan.c | |
| parent | a08ec5fe709fe0d9fbd524ca6dcf6c41320d5bf3 (diff) | |
| download | linux-c757096ea1033c46ab768709847f7776b7e92a92.tar.xz | |
can: rx-offload: add skb queue for use during ISR
Adding a skb to the skb_queue in rx-offload requires to take a lock.
This commit avoids this by adding an unlocked skb queue that is
appended at the end of the ISR. Having one lock at the end of the ISR
should be OK as the HW is empty, not about to overflow.
Link: https://lore.kernel.org/r/20210724204745.736053-2-mkl@pengutronix.de
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Co-developed-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/flexcan.c')
| -rw-r--r-- | drivers/net/can/flexcan.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 57f3635ad8d7..d9dcf6a8412b 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -1198,6 +1198,9 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id) } } + if (handled) + can_rx_offload_irq_finish(&priv->offload); + return handled; } |