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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>
This commit is contained in:
Masaru Nagai 2015-11-13 19:24:49 +09:00 committed by David S. Miller
parent cd998ecd2f
commit 2452cb0c65
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/renesas/ravb_main.c
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@ -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,