* [PATCH AUTOSEL 5.18 21/22] cifs: when a channel is not found for server, log its connection id
[not found] <20220621204928.249907-1-sashal@kernel.org>
@ 2022-06-21 20:49 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2022-06-21 20:49 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Shyam Prasad N, Steve French, Sasha Levin, sfrench, linux-cifs,
samba-technical
From: Shyam Prasad N <sprasad@microsoft.com>
[ Upstream commit 5d24968f5b7e00bae564b1646c3b9e0e3750aabe ]
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 <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/cifs/sess.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 83b9047c945a..453ce8f52b8b 100644
--- 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;
}
--
2.35.1
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