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msg/async/rdma: parse IBSYNMsg.lid as hex when receiving message

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function send_msg encode struct IBSYNMsg to a string, and recv_msg parse the string.
In the function send_msg, im.lid (unsigned short int) is formatted into a string with format string %04x,
so, recv_msg should read im.lid from the string with format string %hx instead of %hu (unsigned short).

Fixes: https://tracker.ceph.com/issues/38391
Signed-off-by: Peng Liu <liupeng37@baidu.com>
This commit is contained in:
LiuPeng 2019-02-20 10:39:00 +08:00 committed by Peng Liu
parent e36364b160
commit 6c11ccf606
1 changed files with 1 additions and 1 deletions
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2
src/msg/async/rdma/Infiniband.cc
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@ -1105,7 +1105,7 @@ int Infiniband::recv_msg(CephContext *cct, int sd, IBSYNMsg& im)
ldout(cct, 1) << __func__ << " got bad length (" << r << ") " << dendl; ldout(cct, 1) << __func__ << " got bad length (" << r << ") " << dendl;
r = -EINVAL; r = -EINVAL;
} else { // valid message } else { // valid message
sscanf(msg, "%hu:%x:%x:%x:%s", &(im.lid), &(im.qpn), &(im.psn), &(im.peer_qpn),gid); sscanf(msg, "%hx:%x:%x:%x:%s", &(im.lid), &(im.qpn), &(im.psn), &(im.peer_qpn),gid);
wire_gid_to_gid(gid, &(im.gid)); wire_gid_to_gid(gid, &(im.gid));
ldout(cct, 5) << __func__ << " recevd: " << im.lid << ", " << im.qpn << ", " << im.psn << ", " << im.peer_qpn << ", " << gid << dendl; ldout(cct, 5) << __func__ << " recevd: " << im.lid << ", " << im.qpn << ", " << im.psn << ", " << im.peer_qpn << ", " << gid << dendl;
} }