linux-kernel - Re: [PATCH 1/1] powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile

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Date:   Mon, 17 Feb 2020 07:31:14 +0100
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Leonardo Bras <leonardo@...ux.ibm.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>, desnesn@...ux.ibm.com
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] powerpc/cputable: Remove unnecessary copy of
 cpu_spec->oprofile_type



Le 15/02/2020 à 06:36, Leonardo Bras a écrit :
> Before checking for cpu_type == NULL, this same copy happens, so doing
> it here will just write the same value to the t->oprofile_type
> again.
> 
> Remove the repeated copy, as it is unnecessary.
> 
> Signed-off-by: Leonardo Bras <leonardo@...ux.ibm.com>
> ---
>   arch/powerpc/kernel/cputable.c | 1 -
>   1 file changed, 1 deletion(-)
> 
> diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
> index e745abc5457a..5a87ec96582f 100644
> --- a/arch/powerpc/kernel/cputable.c
> +++ b/arch/powerpc/kernel/cputable.c
> @@ -2197,7 +2197,6 @@ static struct cpu_spec * __init setup_cpu_spec(unsigned long offset,
>   		 */
>   		if (old.oprofile_cpu_type != NULL) {
>   			t->oprofile_cpu_type = old.oprofile_cpu_type;
> -			t->oprofile_type = old.oprofile_type;
>   		}

The action being reduced to a single line, the { } should be removed.

Christophe