On 11/12/20 9:20 AM, Jason Gunthorpe wrote:
I think it should be like this, Bart?
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 6017d525084a0c..80f9673956ced2 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2311,7 +2311,7 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev,
mutex_lock(&sport->port_guid_id.mutex);
list_for_each_entry(stpg, &sport->port_guid_id.tpg_list, entry) {
- if (!IS_ERR_OR_NULL(ch->sess))
+ if (ch->sess)
break;
ch->sess = target_setup_session(&stpg->tpg, tag_num,
tag_size, TARGET_PROT_NORMAL,
@@ -2321,12 +2321,12 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev,
mutex_lock(&sport->port_gid_id.mutex);
list_for_each_entry(stpg, &sport->port_gid_id.tpg_list, entry) {
- if (!IS_ERR_OR_NULL(ch->sess))
+ if (ch->sess)
break;
ch->sess = target_setup_session(&stpg->tpg, tag_num,
tag_size, TARGET_PROT_NORMAL, i_port_id,
ch, NULL);
- if (!IS_ERR_OR_NULL(ch->sess))
+ if (ch->sess)
break;
/* Retry without leading "0x" */
ch->sess = target_setup_session(&stpg->tpg, tag_num,
@@ -2335,7 +2335,9 @@ static int srpt_cm_req_recv(struct srpt_device *const sdev,
}
mutex_unlock(&sport->port_gid_id.mutex);
- if (IS_ERR_OR_NULL(ch->sess)) {
+ if (!ch->sess)
+ ch->sess = ERR_PTR(-ENOENT);
+ if (IS_ERR(ch->sess)) {
WARN_ON_ONCE(ch->sess == NULL);
ret = PTR_ERR(ch->sess);
ch->sess = NULL;
Hi Jason,
The ib_srpt driver accepts three different formats for the initiator
ACL. Up to two of the three target_setup_session() calls will fail if
the fifth argument of target_setup_session() does not use the format of
the initiator ID in configfs. If the first or the second
target_setup_session() call fails it is essential that later
target_setup_session() calls happen. Hence the IS_ERR_OR_NULL(ch->sess)
checks in the above loops.
In other words, I like YueHaibing's patch better.
Thanks,
Bart.
