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

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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>
This commit is contained in:
Eric W. Biederman 2014-03-14 18:03:23 -07:00 committed by David S. Miller
parent 4c50254902
commit 9b2c05713e
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
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@ -91,6 +91,9 @@ static int fs_enet_rx_napi(struct napi_struct *napi, int budget)
u16 pkt_len, sc;
int curidx;
if (budget <= 0)
return received;
/*
* First, grab all of the stats for the incoming packet.
* These get messed up if we get called due to a busy condition.