[PATCH net-next 1/4] gro: give 'hash' variable in dev_gro_receive() a less confusing name
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STALE2060d
SUPERSEDED
From: Alexander Lobakin <hidden>
Date: 2021-03-12 16:22:53
Also in:
lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Status: Superseded by v2 (posted 2021-03-13). [go to v2]
Revision v1 (2 revisions archived).
Revisions (2)
- v1 current
- v2 [diff against previous]
'hash' stores not the flow hash, but the index of the GRO bucket corresponding to it. Change its name to 'bucket' to avoid confusion while reading lines like '__set_bit(hash, &napi->gro_bitmask)'. Signed-off-by: Alexander Lobakin <redacted> --- net/core/dev.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/net/core/dev.c b/net/core/dev.c
index 2bfdd528c7c3..adc42ba7ffd8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c@@ -5956,7 +5956,7 @@ static void gro_flush_oldest(struct napi_struct *napi, struct list_head *head) static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb) { - u32 hash = skb_get_hash_raw(skb) & (GRO_HASH_BUCKETS - 1); + u32 bucket = skb_get_hash_raw(skb) & (GRO_HASH_BUCKETS - 1); struct list_head *head = &offload_base; struct packet_offload *ptype; __be16 type = skb->protocol;
@@ -6024,7 +6024,7 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff if (pp) { skb_list_del_init(pp); napi_gro_complete(napi, pp); - napi->gro_hash[hash].count--; + napi->gro_hash[bucket].count--; } if (same_flow)
@@ -6033,10 +6033,10 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff if (NAPI_GRO_CB(skb)->flush) goto normal; - if (unlikely(napi->gro_hash[hash].count >= MAX_GRO_SKBS)) { + if (unlikely(napi->gro_hash[bucket].count >= MAX_GRO_SKBS)) { gro_flush_oldest(napi, gro_head); } else { - napi->gro_hash[hash].count++; + napi->gro_hash[bucket].count++; } NAPI_GRO_CB(skb)->count = 1; NAPI_GRO_CB(skb)->age = jiffies;
@@ -6050,11 +6050,11 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff if (grow > 0) gro_pull_from_frag0(skb, grow); ok: - if (napi->gro_hash[hash].count) { - if (!test_bit(hash, &napi->gro_bitmask)) - __set_bit(hash, &napi->gro_bitmask); - } else if (test_bit(hash, &napi->gro_bitmask)) { - __clear_bit(hash, &napi->gro_bitmask); + if (napi->gro_hash[bucket].count) { + if (!test_bit(bucket, &napi->gro_bitmask)) + __set_bit(bucket, &napi->gro_bitmask); + } else if (test_bit(bucket, &napi->gro_bitmask)) { + __clear_bit(bucket, &napi->gro_bitmask); } return ret; --
2.30.2