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Subject[PATCH v2] myri10ge: remove an unneeded NULL check
Date
The define of skb_list_walk_safe(first, skb, next_skb) is:
for ((skb) = (first), (next_skb) = (skb) ? (skb)->next : NULL; (skb); \
(skb) = (next_skb), (next_skb) = (skb) ? (skb)->next : NULL)

Thus, if the 'segs' passed as 'first' into the skb_list_walk_safe is NULL,
the loop will exit immediately. In other words, it can be sure the 'segs'
is non-NULL when we run inside the loop. So just remove the unnecessary
NULL check. Also remove the unneeded assignmnets.

Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
---
changes since v1:
- remove the unneeded assignmnets.

v1: https://lore.kernel.org/lkml/20220319052350.26535-1-xiam0nd.tong@gmail.com/
---
drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index 50ac3ee2577a..071657e3dba8 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -2903,12 +2903,8 @@ static netdev_tx_t myri10ge_sw_tso(struct sk_buff *skb,
status = myri10ge_xmit(curr, dev);
if (status != 0) {
dev_kfree_skb_any(curr);
- if (segs != NULL) {
- curr = segs;
- segs = next;
- curr->next = NULL;
- dev_kfree_skb_any(segs);
- }
+ segs->next = NULL;
+ dev_kfree_skb_any(next);
goto drop;
}
}
--
2.17.1
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