diff options
| author | Karsten Graul <kgraul@linux.ibm.com> | 2020-07-18 16:06:09 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-20 01:30:22 +0300 |
| commit | a35fffbf98189ba8359f19073286b2ea816255c5 (patch) | |
| tree | b58e77a5bc1f139d0f4996bc7411e62f2006ffac /net | |
| parent | 9b8737788af6c76ef93e3161ee2cdc4ddcc034ca (diff) | |
| download | linux-a35fffbf98189ba8359f19073286b2ea816255c5.tar.xz | |
net/smc: handle unexpected response types for confirm link
A delete link could arrive during confirm link processing. Handle this
situation directly in smc_llc_srv_conf_link() rather than using the
logic in smc_llc_wait() to avoid the unexpected message handling there.
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Fixes: 1551c95b6124 ("net/smc: final part of add link processing as SMC server")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/smc/smc_llc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index c1a038689c63..58f4da2e0cc7 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -1051,12 +1051,14 @@ static int smc_llc_srv_conf_link(struct smc_link *link, if (rc) return -ENOLINK; /* receive CONFIRM LINK response over the RoCE fabric */ - qentry = smc_llc_wait(lgr, link, SMC_LLC_WAIT_FIRST_TIME, - SMC_LLC_CONFIRM_LINK); - if (!qentry) { + qentry = smc_llc_wait(lgr, link, SMC_LLC_WAIT_FIRST_TIME, 0); + if (!qentry || + qentry->msg.raw.hdr.common.type != SMC_LLC_CONFIRM_LINK) { /* send DELETE LINK */ smc_llc_send_delete_link(link, link_new->link_id, SMC_LLC_REQ, false, SMC_LLC_DEL_LOST_PATH); + if (qentry) + smc_llc_flow_qentry_del(&lgr->llc_flow_lcl); return -ENOLINK; } smc_llc_save_peer_uid(qentry); |