net/smc: Scan from current RMB list when no position specified

[ Upstream commit b24aa14 ] When finding the first RMB of link group, it should start from the current RMB list whose index is 0. So fix it. Fixes: b4ba465 ("net/smc: extend LLC layer for SMC-Rv2") Signed-off-by: Wen Gu <[email protected]> Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Sasha Levin <[email protected]>
raspberrypi · Jun 9, 2023 · bf1eba8 · bf1eba8
1 parent 5e27b69
commit bf1eba8
Showing 1 changed file with 4 additions and 1 deletion.
diff --git 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);
 	}