linux-kernel - Re: [PATCH v3 02/57] apparmor: Free up _

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Date:   Tue, 13 Jun 2023 01:38:25 -0700
From:   John Johansen <john.johansen@...onical.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        torvalds@...ux-foundation.org, keescook@...omium.org,
        gregkh@...uxfoundation.org, pbonzini@...hat.com
Cc:     masahiroy@...nel.org, nathan@...nel.org, ndesaulniers@...gle.com,
        nicolas@...sle.eu, catalin.marinas@....com, will@...nel.org,
        vkoul@...nel.org, trix@...hat.com, ojeda@...nel.org,
        mingo@...hat.com, longman@...hat.com, boqun.feng@...il.com,
        dennis@...nel.org, tj@...nel.org, cl@...ux.com, acme@...nel.org,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
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Subject: Re: [PATCH v3 02/57] apparmor: Free up __cleanup() name

On 6/12/23 02:07, Peter Zijlstra wrote:
> In order to use __cleanup for __attribute__((__cleanup__(func))) the
> name must not be used for anything else. Avoid the conflict.
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Acked-by: John Johansen <john.johansen@...onical.com>

> ---
>   security/apparmor/include/lib.h |    6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> --- a/security/apparmor/include/lib.h
> +++ b/security/apparmor/include/lib.h
> @@ -232,7 +232,7 @@ void aa_policy_destroy(struct aa_policy
>    */
>   #define fn_label_build(L, P, GFP, FN)					\
>   ({									\
> -	__label__ __cleanup, __done;					\
> +	__label__ __do_cleanup, __done;					\
>   	struct aa_label *__new_;					\
>   									\
>   	if ((L)->size > 1) {						\
> @@ -250,7 +250,7 @@ void aa_policy_destroy(struct aa_policy
>   			__new_ = (FN);					\
>   			AA_BUG(!__new_);				\
>   			if (IS_ERR(__new_))				\
> -				goto __cleanup;				\
> +				goto __do_cleanup;			\
>   			__lvec[__j++] = __new_;				\
>   		}							\
>   		for (__j = __count = 0; __j < (L)->size; __j++)		\
> @@ -272,7 +272,7 @@ void aa_policy_destroy(struct aa_policy
>   			vec_cleanup(profile, __pvec, __count);		\
>   		} else							\
>   			__new_ = NULL;					\
> -__cleanup:								\
> +__do_cleanup:								\
>   		vec_cleanup(label, __lvec, (L)->size);			\
>   	} else {							\
>   		(P) = labels_profile(L);				\
> 
>