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SubjectRe: [PATCH] apparmor: avoid -Wempty-body warning
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On 3/22/21 4:00 AM, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> Building with 'make W=1' shows a warning for an empty macro:
>
> security/apparmor/label.c: In function '__label_update':
> security/apparmor/label.c:2096:59: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body]
> 2096 | AA_BUG(labels_ns(label) != labels_ns(new));
>
> Change the macro defintion to use no_printk(), which improves
> format string checking and avoids the warning.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Aked-by: John Johansen <john.johansen@canonical.com>

I have pulled it into the apparmor tree

> ---
> security/apparmor/include/lib.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/security/apparmor/include/lib.h b/security/apparmor/include/lib.h
> index 7d27db740bc2..67fbb81a11f3 100644
> --- a/security/apparmor/include/lib.h
> +++ b/security/apparmor/include/lib.h
> @@ -36,7 +36,7 @@
> #define AA_BUG_FMT(X, fmt, args...) \
> WARN((X), "AppArmor WARN %s: (" #X "): " fmt, __func__, ##args)
> #else
> -#define AA_BUG_FMT(X, fmt, args...)
> +#define AA_BUG_FMT(X, fmt, args...) no_printk(fmt, ##args)
> #endif
>
> #define AA_ERROR(fmt, args...) \
>

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