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cifs: avoid redundant calls to disable multichannel

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When the server reports query network interface info call
as unsupported following a tree connect, it means that
multichannel is unsupported, even if the server capabilities
report otherwise.

When this happens, cifs_chan_skip_or_disable is called to
disable multichannel on the client. However, we only need
to call this when multichannel is currently setup.

Fixes: f591062bdb ("cifs: handle servers that still advertise multichannel after disabling")
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Shyam Prasad N 2024-02-01 11:15:26 +00:00 committed by Steve French
parent ee36a3b345
commit e77e15fa5e
1 changed files with 1 additions and 1 deletions
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2
fs/smb/client/smb2pdu.c
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@ -419,7 +419,7 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
rc = SMB3_request_interfaces(xid, tcon, false);
free_xid(xid);
if (rc == -EOPNOTSUPP) {
if (rc == -EOPNOTSUPP && ses->chan_count > 1) {
/*
* some servers like Azure SMB server do not advertise
* that multichannel has been disabled with server