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authorAlexander Duyck <alexander.h.duyck@redhat.com>2015-05-01 20:34:38 +0300
committerDavid S. Miller <davem@davemloft.net>2015-05-04 07:06:55 +0300
commit59486329b46f31532ab032014fbaae72e9f190c3 (patch)
treebc80091cb635563920b38e95698977263eb90b3a /drivers/net
parent4212b5433187d01b5ae83664b06e990a9116250f (diff)
downloadlinux-59486329b46f31532ab032014fbaae72e9f190c3.tar.xz
fm10k: Do not assume budget will never be 0 for NAPI
The netpoll path will call napi->poll with a budget of 0 in order to clean the Tx rings only. This change updates the fm10k driver so that it will correctly support that instead of cleaning 1 Rx frame if a budget of 0 is received. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index 1b0661e3573b..c754b2027281 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -610,7 +610,7 @@ static bool fm10k_clean_rx_irq(struct fm10k_q_vector *q_vector,
unsigned int total_bytes = 0, total_packets = 0;
u16 cleaned_count = fm10k_desc_unused(rx_ring);
- do {
+ while (likely(total_packets < budget)) {
union fm10k_rx_desc *rx_desc;
/* return some buffers to hardware, one at a time is too slow */
@@ -659,7 +659,7 @@ static bool fm10k_clean_rx_irq(struct fm10k_q_vector *q_vector,
/* update budget accounting */
total_packets++;
- } while (likely(total_packets < budget));
+ }
/* place incomplete frames back on ring for completion */
rx_ring->skb = skb;