tcp: move inet6_csk_update_pmtu() to tcp_ipv6.c

This function is only called from tcp_v6_mtu_reduced() and can be
(auto)inlined by the compiler.

Note that inet6_csk_route_socket() is no longer (auto)inlined,
which is a good thing as it is slow path.

$ scripts/bloat-o-meter -t vmlinux.0 vmlinux.1

add/remove: 0/2 grow/shrink: 2/0 up/down: 93/-129 (-36)
Function                                     old     new   delta
tcp_v6_mtu_reduced                           139     228     +89
inet6_csk_route_socket                       486     490      +4
__pfx_inet6_csk_update_pmtu                   16       -     -16
inet6_csk_update_pmtu                        113       -    -113
Total: Before=25076512, After=25076476, chg -0.00%

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260223153047.886683-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions