xen-netback: use local var in xenvif_tx_check_gop() instead of re-calculating

shinfo already holds the result of skb_shinfo(skb) at this point - no
need to re-invoke the construct even twice.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jan Beulich 2021-02-25 16:39:01 +01:00 committed by David S. Miller
parent 73f476aa19
commit 826d82170b

View file

@ -557,8 +557,8 @@ check_frags:
}
if (skb_has_frag_list(skb) && !first_shinfo) {
first_shinfo = skb_shinfo(skb);
shinfo = skb_shinfo(skb_shinfo(skb)->frag_list);
first_shinfo = shinfo;
shinfo = skb_shinfo(shinfo->frag_list);
nr_frags = shinfo->nr_frags;
goto check_frags;