linux-kernel - Re: [PATCH v2 1/8] crash_core.c: remove unnecessary parameter of function

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Message-ID: <d00bf2e8-3022-64a1-0458-56497179d5aa@huaweicloud.com>
Date:   Thu, 31 Aug 2023 09:25:59 +0800
From:   "Leizhen (ThunderTown)" <thunder.leizhen@...weicloud.com>
To:     Baoquan He <bhe@...hat.com>, linux-kernel@...r.kernel.org
Cc:     akpm@...ux-foundation.org, catalin.marinas@....com,
        thunder.leizhen@...wei.com, dyoung@...hat.com, prudo@...hat.com,
        samuel.holland@...ive.com, kexec@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, x86@...nel.org
Subject: Re: [PATCH v2 1/8] crash_core.c: remove unnecessary parameter of
 function



On 2023/8/29 20:16, Baoquan He wrote:
> In all call sites of __parse_crashkernel(), the parameter 'name' is
> hardcoded as "crashkernel=". So remove the unnecessary parameter 'name',
> add local varibale 'name' inside __parse_crashkernel() instead.

Reviewed-by: Zhen Lei <thunder.leizhen@...wei.com>

> 
> Signed-off-by: Baoquan He <bhe@...hat.com>
> ---
>  kernel/crash_core.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/kernel/crash_core.c b/kernel/crash_core.c
> index 90ce1dfd591c..f27b4e45d410 100644
> --- a/kernel/crash_core.c
> +++ b/kernel/crash_core.c
> @@ -241,11 +241,11 @@ static int __init __parse_crashkernel(char *cmdline,
>  			     unsigned long long system_ram,
>  			     unsigned long long *crash_size,
>  			     unsigned long long *crash_base,
> -			     const char *name,
>  			     const char *suffix)
>  {
>  	char	*first_colon, *first_space;
>  	char	*ck_cmdline;
> +	char	*name = "crashkernel=";
>  
>  	BUG_ON(!crash_size || !crash_base);
>  	*crash_size = 0;
> @@ -283,7 +283,7 @@ int __init parse_crashkernel(char *cmdline,
>  			     unsigned long long *crash_base)
>  {
>  	return __parse_crashkernel(cmdline, system_ram, crash_size, crash_base,
> -					"crashkernel=", NULL);
> +				NULL);
>  }
>  
>  int __init parse_crashkernel_high(char *cmdline,
> @@ -292,7 +292,7 @@ int __init parse_crashkernel_high(char *cmdline,
>  			     unsigned long long *crash_base)
>  {
>  	return __parse_crashkernel(cmdline, system_ram, crash_size, crash_base,
> -				"crashkernel=", suffix_tbl[SUFFIX_HIGH]);
> +				suffix_tbl[SUFFIX_HIGH]);
>  }
>  
>  int __init parse_crashkernel_low(char *cmdline,
> @@ -301,7 +301,7 @@ int __init parse_crashkernel_low(char *cmdline,
>  			     unsigned long long *crash_base)
>  {
>  	return __parse_crashkernel(cmdline, system_ram, crash_size, crash_base,
> -				"crashkernel=", suffix_tbl[SUFFIX_LOW]);
> +				suffix_tbl[SUFFIX_LOW]);
>  }
>  
>  /*
> 

-- 
Regards,
  Zhen Lei