linux-kernel - Re: [PATCH v2] selftests: KVM: Replace optarg with arg in guest_modes

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Date:   Thu, 2 Feb 2023 09:10:57 +0100
From:   Andrew Jones <andrew.jones@...ux.dev>
To:     shahuang@...hat.com
Cc:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Shuah Khan <shuah@...nel.org>,
        Sean Christopherson <seanjc@...gle.com>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] selftests: KVM: Replace optarg with arg in
 guest_modes_cmdline

On Thu, Feb 02, 2023 at 10:57:15AM +0800, shahuang@...hat.com wrote:
> From: Shaoqin Huang <shahuang@...hat.com>
> 
> The parameter arg in guest_modes_cmdline not being used now, and the
> optarg should be replaced with arg in guest_modes_cmdline.
> 
> And this is the chance to change strtoul() to atoi_non_negative(), since
> guest mode ID will never be negative.

Fixes: e42ac777d661 ("KVM: selftests: Factor out guest mode code")

> 
> Signed-off-by: Shaoqin Huang <shahuang@...hat.com>
> 
> ---
> Changes from v1:
>   - Change strtoul() to atoi_non_negative(). [Vipin]
> 
> ---
>  tools/testing/selftests/kvm/lib/guest_modes.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/kvm/lib/guest_modes.c b/tools/testing/selftests/kvm/lib/guest_modes.c
> index 99a575bbbc52..1df3ce4b16fd 100644
> --- a/tools/testing/selftests/kvm/lib/guest_modes.c
> +++ b/tools/testing/selftests/kvm/lib/guest_modes.c
> @@ -127,7 +127,7 @@ void guest_modes_cmdline(const char *arg)
>  		mode_selected = true;
>  	}
>  
> -	mode = strtoul(optarg, NULL, 10);
> +	mode = atoi_non_negative("Guest mode ID", arg);
>  	TEST_ASSERT(mode < NUM_VM_MODES, "Guest mode ID %d too big", mode);
>  	guest_modes[mode].enabled = true;
>  }
> -- 
> 2.39.0
> 

Reviewed-by: Andrew Jones <andrew.jones@...ux.dev>