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amd8111e: Don't receive packets when the napi budget == 0 

Processing any incoming packets with a with a napi budget of 0
is incorrect driver behavior.

This matters as netpoll will shortly call drivers with a budget of 0
to avoid receive packet processing happening in hard irq context.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Eric W. Biederman 2014-03-14 18:01:11 -07:00 committed by David S. Miller
parent fdabfc8a74
commit 278d5385b1
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/amd/amd8111e.c
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@ -720,6 +720,9 @@ static int amd8111e_rx_poll(struct napi_struct *napi, int budget)
int rx_pkt_limit = budget;
unsigned long flags;
if (rx_pkt_limit <= 0)
goto rx_not_empty;
do{
/* process receive packets until we use the quota*/
/* If we own the next entry, it's a new packet. Send it up. */