linux-kernel - [PATCH 3/5] drivers/tty: make hvc_console.c explicitly non-modular

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Date:	Wed, 19 Aug 2015 17:48:07 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	<linux-kernel@...r.kernel.org>
CC:	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.com>, <linuxppc-dev@...ts.ozlabs.org>
Subject: [PATCH 3/5] drivers/tty: make hvc_console.c explicitly non-modular

The Kconfig currently controlling compilation of this code is:

drivers/tty/hvc/Kconfig:config HVC_DRIVER
drivers/tty/hvc/Kconfig:        bool

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only, even
though someone bothered to comment that the code was not used.

Unlike other changes, this driver binds in w/o using module_init,
so we dont have init ordering concerns with this commit.

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jslaby@...e.com>
Acked-by: Michael Ellerman <mpe@...erman.id.au>
Cc: linuxppc-dev@...ts.ozlabs.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 drivers/tty/hvc/hvc_console.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 4e9c4cc9e1b5..9c30f67c802a 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -29,7 +29,7 @@
 #include <linux/kernel.h>
 #include <linux/kthread.h>
 #include <linux/list.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/major.h>
 #include <linux/atomic.h>
 #include <linux/sysrq.h>
@@ -1005,19 +1005,3 @@ put_tty:
 out:
 	return err;
 }
-
-/* This isn't particularly necessary due to this being a console driver
- * but it is nice to be thorough.
- */
-static void __exit hvc_exit(void)
-{
-	if (hvc_driver) {
-		kthread_stop(hvc_task);
-
-		tty_unregister_driver(hvc_driver);
-		/* return tty_struct instances allocated in hvc_init(). */
-		put_tty_driver(hvc_driver);
-		unregister_console(&hvc_console);
-	}
-}
-module_exit(hvc_exit);
-- 
2.5.0

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