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| author | Eric W. Biederman <ebiederm@xmission.com> | 2014-03-14 18:01:11 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-03-14 22:52:47 -0400 |
| commit | 278d5385b148c87d3652886af3c17ea65e1f26da (patch) | |
| tree | 9ca7e687769f2b1921b3198a9e2aca12978f259e /drivers/net/ethernet/amd/amd8111e.c | |
| parent | fdabfc8a74c713f4e4318715d449651f798db74a (diff) | |
| download | linux-stable-278d5385b148c87d3652886af3c17ea65e1f26da.tar.gz linux-stable-278d5385b148c87d3652886af3c17ea65e1f26da.tar.bz2 linux-stable-278d5385b148c87d3652886af3c17ea65e1f26da.zip | |
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>
Diffstat (limited to 'drivers/net/ethernet/amd/amd8111e.c')
| -rw-r--r-- | drivers/net/ethernet/amd/amd8111e.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/amd8111e.c b/drivers/net/ethernet/amd/amd8111e.c index 2061b471fd16..26efaaa5e73f 100644 --- a/drivers/net/ethernet/amd/amd8111e.c +++ b/drivers/net/ethernet/amd/amd8111e.c @@ -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. */ |