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

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[ 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: b4ba4652b3 ("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>
This commit is contained in:
Wen Gu 2023-05-26 19:49:00 +08:00 committed by Greg Kroah-Hartman
parent 752836e1a2
commit 8c3ec8e789
1 changed files with 4 additions and 1 deletions
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5
net/smc/smc_llc.c
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@ -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);
}