[PATCH 1/1] Add dditional error text for missing mount.cifs

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If a cifs mount is attempted without mount.cifs present on the
system the following appears via dmesg:

[   25.949378] CIFS VFS: No username specified

The purpose of this patch is to better inform the user of the
possible cause of the error and show a potential solution.

Signed-off-by: Mike Pagano <mpagano@xxxxxxxxxx>
---
 fs/cifs/connect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 8813ff7..aa3249d 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3371,7 +3371,7 @@ cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data,
        /* BB fixme parse for domain name here */
        cifs_dbg(FYI, "Username: %s\n", volume_info->username);
    } else {
-       cifs_dbg(VFS, "No username specified\n");
+       cifs_dbg(VFS, "No username specified. Check for missing external program mount.cifs\n");
    /* In userspace mount helper we can get user name from alternate
       locations such as env variables and files on disk */
        return -EINVAL;
--
1.8.3.2
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