[PATCH net 1/2] net/smc: Scan from current RMB list when no position specified

[Wen Gu <guwen@linux.alibaba.com>]

When finding the first RMB of link group, it should start from the
current RMB list whose index is 0. So fix it.

Fixes: b4ba4652b3f8 ("net/smc: extend LLC layer for SMC-Rv2")
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
---
 net/smc/smc_llc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index a0840b8..8423e8e 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -578,7 +578,10 @@ static struct smc_buf_desc *smc_llc_get_next_rmb(struct smc_link_group *lgr,
 {
 	struct smc_buf_desc *buf_next;
 
-	if (!buf_pos || list_is_last(&buf_pos->list, &lgr->rmbs[*buf_lst])) {
+	if (!buf_pos)
+		return _smc_llc_get_next_rmb(lgr, buf_lst);
+
+	if (list_is_last(&buf_pos->list, &lgr->rmbs[*buf_lst])) {
 		(*buf_lst)++;
 		return _smc_llc_get_next_rmb(lgr, buf_lst);
 	}
-- 
1.8.3.1