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authorMasaru Nagai <masaru.nagai.vx@renesas.com>2015-11-13 19:24:49 +0900
committerDavid S. Miller <davem@davemloft.net>2015-11-16 14:44:32 -0500
commit2452cb0c6503f05ab371b26c3216c5fba54d4476 (patch)
treebec6ce7536a6b6bf20e51e367739bfeac598ad48 /drivers/net/ethernet
parentcd998ecd2f031cfdb88436ea12f7c6d0b09c7a80 (diff)
ravb: Fix int mask value overwritten issue
When RX/TX interrupt for Network Control queue and Best Effort queue is issued at the same time, the interrupt mask of Network Control queue will be reset when the mask of Best Effort queue is set. This patch fixes this problem. Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/renesas/ravb_main.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index aa7b2083cb53..7180e26f5c67 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -733,8 +733,10 @@ static irqreturn_t ravb_interrupt(int irq, void *dev_id)
((tis & tic) & BIT(q))) {
if (napi_schedule_prep(&priv->napi[q])) {
/* Mask RX and TX interrupts */
- ravb_write(ndev, ric0 & ~BIT(q), RIC0);
- ravb_write(ndev, tic & ~BIT(q), TIC);
+ ric0 &= ~BIT(q);
+ tic &= ~BIT(q);
+ ravb_write(ndev, ric0, RIC0);
+ ravb_write(ndev, tic, TIC);
__napi_schedule(&priv->napi[q]);
} else {
netdev_warn(ndev,