From: Will Deacon <will@kernel.org>
To: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: linux-arm-kernel@lists.infradead.org,
Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <maz@kernel.org>
Subject: Re: [PATCH v2] arm64: cpufeature: Use defined macro instead of magic numbers
Date: Fri, 30 Jul 2021 13:03:36 +0100 [thread overview]
Message-ID: <20210730120335.GA23589@willie-the-truck> (raw)
In-Reply-To: <1626415089-57584-1-git-send-email-zhangshaokun@hisilicon.com>
On Fri, Jul 16, 2021 at 01:58:09PM +0800, Shaokun Zhang wrote:
> Use defined macro to simplify the code and make it more readable.
>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Marc Zyngier <maz@kernel.org>
> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
> ---
> ChangeLog:
> v1-->v2:
> 1. Address Will's comment to make code more readable.
>
> arch/arm64/kernel/cpufeature.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
> index 125d5c9471ac..93004bc8e1e8 100644
> --- a/arch/arm64/kernel/cpufeature.c
> +++ b/arch/arm64/kernel/cpufeature.c
> @@ -1733,7 +1733,7 @@ static void cpu_has_fwb(const struct arm64_cpu_capabilities *__unused)
> u64 val = read_sysreg_s(SYS_CLIDR_EL1);
>
> /* Check that CLIDR_EL1.LOU{U,IS} are both 0 */
> - WARN_ON(val & (7 << 27 | 7 << 21));
> + WARN_ON(CLIDR_LOUU(val) || CLIDR_LOUIS(val));
Acked-by: Will Deacon <will@kernel.org>
Will
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next prev parent reply other threads:[~2021-07-30 12:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-16 5:58 [PATCH v2] arm64: cpufeature: Use defined macro instead of magic numbers Shaokun Zhang
2021-07-30 12:03 ` Will Deacon [this message]
2021-07-30 18:01 ` Catalin Marinas
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