cifs: when a channel is not found for server, log its connection id

cifs_ses_get_chan_index gets the index for a given server pointer. When a match is not found, we warn about a possible bug. However, printing details about the non-matching server could be more useful to debug here. Signed-off-by: Shyam Prasad N <[email protected]> Signed-off-by: Steve French <[email protected]>
ambv · Jun 18, 2022 · 5d24968 · 5d24968
1 parent 7c05eae
commit 5d24968
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
@@ -81,6 +81,9 @@ cifs_ses_get_chan_index(struct cifs_ses *ses,
 	}
 
 	/* If we didn't find the channel, it is likely a bug */
+	if (server)
+		cifs_dbg(VFS, "unable to get chan index for server: 0x%llx",
+			 server->conn_id);
 	WARN_ON(1);
 	return 0;
 }