Signed-off-by: Steve French <sfrench@us.ibm.com>

Christoph had noticed too many ifdefs in the CIFS code making it
hard to read.  This patch removes about a quarter of them from
the C files in cifs by improving a few key ifdefs in the .h files.

Signed-off-by: Steve French <sfrench@us.ibm.com>

Signed-off-by: Steve French <sfrench@us.ibm.com>

Fixes two problems:
1) we dropped down to negotiating lanman if we did not recognize the
mechanism (krb5 e.g.)
2) we did not stop cifsd (thus will fail when doing rmod cifs with
slab free errors) when we fail tcon but have a bad session (which is
the case in which signing is required but we don't allow signing on
the client)

It also turns on extended security flag in the header when passing
"sec=krb5" on mount command (although kerberos support is not done of
course)

Acked-by: Jeff Layton <jlayton@redhat.com>
CC: Shaggy <shaggy@us.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

Signed-off-by: Steve French <sfrench@us.ibm.com>

Potential problem was noticed by Cyrill Gorcunov

CC: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

This should be the last big batch of whitespace/formatting fixes.
checkpatch warnings for the cifs directory are down about 90% and
many of the remaining ones are harder to remove or make the code
harder to read.

Signed-off-by: Steve French <sfrench@us.ibm.com>

We were checking the wrong (old) global variable to determine
whether to override server and force signing on the SMB
connection.

Acked-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

More whitespace problems found by checkpatch

Signed-off-by: Steve French <sfrench@us.ibm.com>

   Various coding style problems found by running the new
   checkpatch.pl script against fs/cifs.  3 more files
   fixed up.

Signed-off-by: Steve French <sfrench@us.ibm.com>