linux-kernel - [PATCH 2/5] drivers/tty: make sysrq.c slightly more explicitly non-modular

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Date:	Sat, 8 Aug 2015 20:51:34 -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>
Subject: [PATCH 2/5] drivers/tty: make sysrq.c slightly more explicitly non-modular

The Kconfig currently controlling compilation of this code is:

config.debug:config MAGIC_SYSRQ
      bool "Magic SysRq key"

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

Lets remove the traces of modularity we can so that when reading the
driver there is less doubt it is builtin-only.

Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.

We don't delete the module.h include since other parts of the file are
using content from there.

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jslaby@...e.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 drivers/tty/sysrq.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index b5b427888b24..dd2c435e223e 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -996,6 +996,10 @@ static const struct kernel_param_ops param_ops_sysrq_reset_seq = {
 #define param_check_sysrq_reset_seq(name, p)	\
 	__param_check(name, p, unsigned short)
 
+/*
+ * not really modular, but the easiest way to keep compat with existing
+ * bootargs behaviour is to continue using module_param here.
+ */
 module_param_array_named(reset_seq, sysrq_reset_seq, sysrq_reset_seq,
 			 &sysrq_reset_seq_len, 0644);
 
@@ -1112,4 +1116,4 @@ static int __init sysrq_init(void)
 
 	return 0;
 }
-module_init(sysrq_init);
+device_initcall(sysrq_init);
-- 
2.5.0

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