linux-kernel - Re: [PATCH v3] gcov: fix when CONFIG

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Date:   Mon, 1 Apr 2019 21:47:09 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     trong@...roid.com, oberpar@...ux.ibm.com, akpm@...ux-foundation.org
Cc:     ndesaulniers@...gle.com, ghackmann@...roid.com, linux-mm@...ck.org,
        kbuild-all@...org, lkp@...el.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] gcov: fix when CONFIG_MODULES is not set

On 4/1/19 8:09 PM, trong@...roid.com wrote:
> From: Tri Vo <trong@...roid.com>
> 
> Fixes: 8c3d220cb6b5 ("gcov: clang support")
> 
> Cc: Greg Hackmann <ghackmann@...roid.com>
> Cc: Peter Oberparleiter <oberpar@...ux.ibm.com>
> Cc: linux-mm@...ck.org
> Cc: kbuild-all@...org
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
> Reported-by: kbuild test robot <lkp@...el.com>
> Link: https://marc.info/?l=linux-mm&m=155384681109231&w=2
> Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
> Signed-off-by: Tri Vo <trong@...roid.com>

Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested

Thanks.

> ---
>  kernel/gcov/clang.c   | 4 ++++
>  kernel/gcov/gcc_3_4.c | 4 ++++
>  kernel/gcov/gcc_4_7.c | 4 ++++
>  3 files changed, 12 insertions(+)
> 
> diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c
> index 125c50397ba2..cfb9ce5e0fed 100644
> --- a/kernel/gcov/clang.c
> +++ b/kernel/gcov/clang.c
> @@ -223,7 +223,11 @@ void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
>   */
>  bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
>  {
> +#ifdef CONFIG_MODULES
>  	return within_module((unsigned long)info->filename, mod);
> +#else
> +	return false;
> +#endif
>  }
>  
>  /* Symbolic links to be created for each profiling data file. */
> diff --git a/kernel/gcov/gcc_3_4.c b/kernel/gcov/gcc_3_4.c
> index 801ee4b0b969..8fc30f178351 100644
> --- a/kernel/gcov/gcc_3_4.c
> +++ b/kernel/gcov/gcc_3_4.c
> @@ -146,7 +146,11 @@ void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
>   */
>  bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
>  {
> +#ifdef CONFIG_MODULES
>  	return within_module((unsigned long)info, mod);
> +#else
> +	return false;
> +#endif
>  }
>  
>  /* Symbolic links to be created for each profiling data file. */
> diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
> index ec37563674d6..0b6886d4a4dd 100644
> --- a/kernel/gcov/gcc_4_7.c
> +++ b/kernel/gcov/gcc_4_7.c
> @@ -159,7 +159,11 @@ void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
>   */
>  bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
>  {
> +#ifdef CONFIG_MODULES
>  	return within_module((unsigned long)info, mod);
> +#else
> +	return false;
> +#endif
>  }
>  
>  /* Symbolic links to be created for each profiling data file. */
> 


-- 
~Randy