Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 392/453] SMB3: avoid confusing warning message on mount to Azure | Date | Mon, 28 Dec 2020 13:50:28 +0100 |
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From: Steve French <stfrench@microsoft.com>
commit ebcd6de98754d9b6a5f89d7835864b1c365d432f upstream.
Mounts to Azure cause an unneeded warning message in dmesg "CIFS: VFS: parse_server_interfaces: incomplete interface info"
Azure rounds up the size (by 8 additional bytes, to a 16 byte boundary) of the structure returned on the query of the server interfaces at mount time. This is permissible even though different than other servers so do not log a warning if query network interfaces response is only rounded up by 8 bytes or fewer.
CC: Stable <stable@vger.kernel.org> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/cifs/smb2ops.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -478,7 +478,8 @@ parse_server_interfaces(struct network_i goto out; } - if (bytes_left || p->Next) + /* Azure rounds the buffer size up 8, to a 16 byte boundary */ + if ((bytes_left > 8) || p->Next) cifs_dbg(VFS, "%s: incomplete interface info\n", __func__);
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