linux-kernel - Re: [PATCH] kexec: Delete an unnecessary comparison

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Date:   Fri, 14 Aug 2020 13:51:19 +0800
From:   Dave Young <dyoung@...hat.com>
To:     Youling Tang <tangyouling@...ngson.cn>
Cc:     Eric Biederman <ebiederm@...ssion.com>,
        Vivek Goyal <vgoyal@...hat.com>, kexec@...ts.infradead.org,
        linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: [PATCH] kexec: Delete an unnecessary comparison

On 08/13/20 at 08:45pm, Youling Tang wrote:
> Regardless of whether the ret value is zero or non-zero, the trajectory
> of the program execution is the same, so there is no need to compare.
> 
> Signed-off-by: Youling Tang <tangyouling@...ngson.cn>
> ---
>  kernel/kexec_file.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
> index 78c0837..3ad0ae2 100644
> --- a/kernel/kexec_file.c
> +++ b/kernel/kexec_file.c
> @@ -800,8 +800,6 @@ static int kexec_calculate_store_digests(struct kimage *image)
>  
>  		ret = kexec_purgatory_get_set_symbol(image, "purgatory_sha256_digest",
>  						     digest, SHA256_DIGEST_SIZE, 0);
> -		if (ret)
> -			goto out_free_digest;
>  	}
>  
>  out_free_digest:
> -- 
> 2.1.0
> 

Acked-by: Dave Young <dyoung@...hat.com>

Thanks
Dave