From: Jakub Kicinski Date: Wed, 11 Feb 2026 04:57:52 +0000 (-0800) Subject: Merge branch 'ipv6-tcp-no-longer-rebuild-fl6-at-each-transmit' X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=70f1fbee85a4ee1c4d9278dff30b51f16e1d99db;p=thirdparty%2Fkernel%2Flinux.git Merge branch 'ipv6-tcp-no-longer-rebuild-fl6-at-each-transmit' Eric Dumazet says: ==================== ipv6: tcp: no longer rebuild fl6 at each transmit TCP v6 spends a good amount of time rebuilding a fresh fl6 at each transmit in inet6_csk_xmit()/inet6_csk_route_socket(). TCP v4 caches the information in inet->cork.fl.u.ip4 instead. This series changes TCP v6 to behave the same, saving cpu cycles and reducing cache line misses and stack use. ==================== Link: https://patch.msgid.link/20260206173426.1638518-1-edumazet@google.com Signed-off-by: Jakub Kicinski --- 70f1fbee85a4ee1c4d9278dff30b51f16e1d99db