linux-kernel - [PATCH 1/2] module: export param_free

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Date:	Wed, 26 Aug 2015 14:32:49 -0400
From:	Dan Streetman <ddstreet@...e.org>
To:	Seth Jennings <sjennings@...iantweb.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rusty Russell <rusty@...tcorp.com.au>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Linux-MM <linux-mm@...ck.org>, Dan Streetman <ddstreet@...e.org>
Subject: [PATCH 1/2] module: export param_free_charp()

Change the param_free_charp() function from static to exported.

It is used by zswap in the next patch.

Signed-off-by: Dan Streetman <ddstreet@...e.org>
---
 include/linux/moduleparam.h | 1 +
 kernel/params.c             | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index c12f214..52666d9 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -386,6 +386,7 @@ extern int param_get_ullong(char *buffer, const struct kernel_param *kp);
 extern const struct kernel_param_ops param_ops_charp;
 extern int param_set_charp(const char *val, const struct kernel_param *kp);
 extern int param_get_charp(char *buffer, const struct kernel_param *kp);
+extern void param_free_charp(void *arg);
 #define param_check_charp(name, p) __param_check(name, p, char *)
 
 /* We used to allow int as well as bool.  We're taking that away! */
diff --git a/kernel/params.c b/kernel/params.c
index b6554aa..93a380a 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -325,10 +325,11 @@ int param_get_charp(char *buffer, const struct kernel_param *kp)
 }
 EXPORT_SYMBOL(param_get_charp);
 
-static void param_free_charp(void *arg)
+void param_free_charp(void *arg)
 {
 	maybe_kfree_parameter(*((char **)arg));
 }
+EXPORT_SYMBOL(param_free_charp);
 
 const struct kernel_param_ops param_ops_charp = {
 	.set = param_set_charp,
-- 
2.1.0

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