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net: mscc: ocelot: stop returning IRQ_NONE in ocelot_xtr_irq_handler 

Since the xtr (extraction) IRQ of the ocelot switch is not shared, then
if it fired, it means that some data must be present in the queues of
the CPU port module. So simplify the code.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2021-02-14 00:37:50 +02:00 committed by David S. Miller
parent 140261925a
commit f833ca293d
1 changed files with 2 additions and 5 deletions
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7
drivers/net/ethernet/mscc/ocelot_vsc7514.c
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@ -604,10 +604,7 @@ static irqreturn_t ocelot_xtr_irq_handler(int irq, void *arg)
int i = 0, grp = 0;
int err = 0;
if (!(ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp)))
return IRQ_NONE;
do {
while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp)) {
struct skb_shared_hwtstamps *shhwtstamps;
struct ocelot_port_private *priv;
struct ocelot_port *ocelot_port;
@ -702,7 +699,7 @@ static irqreturn_t ocelot_xtr_irq_handler(int irq, void *arg)
netif_rx(skb);
dev->stats.rx_bytes += len;
dev->stats.rx_packets++;
} while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp));
}
if (err)
while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp))