On 06/05/2015 02:39 PM, James Hogan wrote:
[ ... ]

 From e12856c559d7dff2ad4f6497996610e12e7c7e2d Mon Sep 17 00:00:00 2001
From: James Hogan <james.ho...@imgtec.com>
Date: Fri, 5 Jun 2015 22:17:18 +0100
Subject: [PATCH] tty/metag_da: Avoid module_init/module_exit
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The metag_da TTY driver can't get built as a module at the moment, but
it still uses module_init() and module_exit(). Those macros are moving
to module.h which isn't included by metag_da.c, which will result in the
following build warnings (remarkably no build errors) and an apparent
failure to boot as the TTY driver won't be loaded.

drivers/tty/metag_da.c:660: warning: data definition has no type or storage 
class
drivers/tty/metag_da.c:660: warning: type defaults to ‘int’ in declaration of 
‘module_init’
drivers/tty/metag_da.c:660: warning: parameter names (without types) in 
function declaration
drivers/tty/metag_da.c:661: warning: data definition has no type or storage 
class
drivers/tty/metag_da.c:661: warning: type defaults to ‘int’ in declaration of 
‘module_exit’
drivers/tty/metag_da.c:661: warning: parameter names (without types) in 
function declaration
drivers/tty/metag_da.c:572: warning: ‘dashtty_init’ defined but not used
drivers/tty/metag_da.c:645: warning: ‘dashtty_exit’ defined but not used
drivers/tty/metag_da.c In function ‘dash_console_write’:
drivers/tty/metag_da.c:670 : warning: passing argument 4 of ‘chancall’ discards 
qualifiers from pointer target type

Instead of just adding the module.h include, now would be a good time to
remove the use of these macros, replacing the module_init with
device_initcall, and removing the exit function altogether since it
isn't needed. If module support is added later the code can always be
resurrected.

Reported-by: Guenter Roeck <li...@roeck-us.net>
Signed-off-by: James Hogan <james.ho...@imgtec.com>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Jiri Slaby <jsl...@suse.cz>
Cc: Paul Gortmaker <paul.gortma...@windriver.com>
Cc: linux-metag@vger.kernel.org

Yes, that does the trick.

Tested-by: Guenter Roeck <li...@roeck-us.net>

Thanks,
Guenter

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