linux-kernel - Re: [PATCH V3] arm64/cpufeature: Add get_arm64_ftr_reg

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Message-Id: <159057996975.77588.7036217455816555869.b4-ty@kernel.org>
Date:   Wed, 27 May 2020 13:25:49 +0100
From:   Will Deacon <will@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org,
        Anshuman Khandual <anshuman.khandual@....com>
Cc:     catalin.marinas@....com, Will Deacon <will@...nel.org>,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        mark.rutland@....com, suzuki.poulose@....com
Subject: Re: [PATCH V3] arm64/cpufeature: Add get_arm64_ftr_reg_nowarn()

On Wed, 27 May 2020 15:34:36 +0530, Anshuman Khandual wrote:
> There is no way to proceed when requested register could not be searched in
> arm64_ftr_reg[]. Requesting for a non present register would be an error as
> well. Hence lets just WARN_ON() when search fails in get_arm64_ftr_reg()
> rather than checking for return value and doing a BUG_ON() instead in some
> individual callers. But there are also caller instances that dont error out
> when register search fails. Add a new helper get_arm64_ftr_reg_nowarn() for
> such cases.

Applied to arm64 (for-next/cpufeature), thanks!

[1/1] arm64/cpufeature: Add get_arm64_ftr_reg_nowarn()
      https://git.kernel.org/arm64/c/3577dd37c703

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev