[PATCH] create a kstrdup library function

This patch creates a new kstrdup library function and changes the "local"
implementations in several places to use this function.

Most of the changes come from the sound and net subsystems.  The sound part
had already been acknowledged by Takashi Iwai and the net part by David S.
Miller.

I left UML alone for now because I would need more time to read the code
carefully before making changes there.

Signed-off-by: Paulo Marques <pmarques@grupopie.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 2 insertions, 4 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d6afd440cf7b..d89816ad642f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -925,10 +925,6 @@ extern int skb_checksum_help(struct sk_buff *skb, int inward);
 extern void             net_enable_timestamp(void);
 extern void             net_disable_timestamp(void);
 
-#ifdef CONFIG_SYSCTL
-extern char *net_sysctl_strdup(const char *s);
-#endif
-
 #endif /* __KERNEL__ */
 
 #endif  /* _LINUX_DEV_H */
diff --git a/include/linux/string.h b/include/linux/string.h
index b9fc59469956..93994c613095 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -88,6 +88,8 @@ extern int memcmp(const void *,const void *,__kernel_size_t);
 extern void * memchr(const void *,int,__kernel_size_t);
 #endif
 
+extern char *kstrdup(const char *s, int gfp);
+
 #ifdef __cplusplus
 }
 #endif