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authorEric W. Biederman <ebiederm@xmission.com>2014-03-14 18:03:23 -0700
committerDavid S. Miller <davem@davemloft.net>2014-03-14 22:52:47 -0400
commit9b2c05713edb56a338536ab26541e155763c0961 (patch)
tree1cb8b388f0bc09607572b09a41f1cba3b89d85de /drivers
parent4c50254902dc57e5f6a52ed601a4b8f976f2ed81 (diff)
fs_enet: 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
index 62f042d4aaa9..dc80db41d6b3 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
@@ -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.