From: Wen Gu guwen@linux.alibaba.com
[ Upstream commit b24aa141c2ff26c919237aee61ea1818fc6780d9 ]
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 Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 a0840b8c935b8..8423e8e0063f4 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); }