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net/smc: add function to get link group from link

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Replace a frequently used construct with a more readable variant,
reducing the code. Also might come handy when we start to support
more than a single per link group.

Signed-off-by: Stefan Raspl <raspl@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Raspl
2018-07-23 13:53:10 +02:00
committed by David S. Miller
parent bac6de7b63
commit 00e5fb263f
5 changed files with 20 additions and 47 deletions
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2
net/smc/smc_cdc.c
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@@ -365,7 +365,7 @@ static void smc_cdc_rx_handler(struct ib_wc *wc, void *buf)
return; /* invalid message */
/* lookup connection */
lgr = container_of(link, struct smc_link_group, lnk[SMC_SINGLE_LINK]);
lgr = smc_get_lgr(link);
read_lock_bh(&lgr->conns_lock);
conn = smc_lgr_find_conn(ntohl(cdc->token), lgr);
read_unlock_bh(&lgr->conns_lock);