Per-next-PR merge.

net/smc/af_smc.c
  b5dd4d69 ("net/smc: llc_conf_mutex refactor, replace it with rw_semaphore")
  e40b801b ("net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()")
https://lore.kernel.org/all/20230221124008.6303c330@canb.auug.org.au/Signed-off-by: Jakub Kicinski <kuba@kernel.org>