Mailing List Archive: [Patch] string: do not export memweight() to userspace

From: WANG Cong <xiyou.wangcong@gmail.com>

This patch fixes the following warning:

usr/include/linux/string.h:8: userspace cannot reference function or variable defined in the kernel

Cc: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>

---
diff --git a/include/linux/string.h b/include/linux/string.h
index ffe0442..b917881 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -144,8 +144,8 @@ static inline bool strstarts(const char *str, const char *prefix)
{
return strncmp(str, prefix, strlen(prefix)) == 0;
}
-#endif

extern size_t memweight(const void *ptr, size_t bytes);

+#endif /* __KERNEL__ */
#endif /* _LINUX_STRING_H_ */
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

2012/8/6 Cong Wang <amwang@redhat.com>:
> From: WANG Cong <xiyou.wangcong@gmail.com>
>
> This patch fixes the following warning:
>
> usr/include/linux/string.h:8: userspace cannot reference function or variable defined in the kernel

Thanks for finding this problem.
Looks good to me.

> Cc: Akinobu Mita <akinobu.mita@gmail.com>
> Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
>
> ---
> diff --git a/include/linux/string.h b/include/linux/string.h
> index ffe0442..b917881 100644
> --- a/include/linux/string.h
> +++ b/include/linux/string.h
> @@ -144,8 +144,8 @@ static inline bool strstarts(const char *str, const char *prefix)
> {
> return strncmp(str, prefix, strlen(prefix)) == 0;
> }
> -#endif
>
> extern size_t memweight(const void *ptr, size_t bytes);
>
> +#endif /* __KERNEL__ */
> #endif /* _LINUX_STRING_H_ */
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/