diff options
| author | Steve French <stfrench@microsoft.com> | 2020-12-09 04:13:31 +0100 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2020-12-14 02:12:07 +0100 |
| commit | ebcd6de98754d9b6a5f89d7835864b1c365d432f (patch) | |
| tree | a1149a5690c7f7bb7ec0bbd3359313b4e64052df /fs/cifs/smb2ops.c | |
| parent | cifs: Fix fall-through warnings for Clang (diff) | |
| download | linux-ebcd6de98754d9b6a5f89d7835864b1c365d432f.tar.xz linux-ebcd6de98754d9b6a5f89d7835864b1c365d432f.zip | |
SMB3: avoid confusing warning message on mount to Azure
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>
Diffstat (limited to 'fs/cifs/smb2ops.c')
| -rw-r--r-- | fs/cifs/smb2ops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 3d914d7d0d11..22f1d8dc12b0 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -477,7 +477,8 @@ parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf, 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__); |