linux-kernel - Re: [PATCH V2 18/46] arm64/sysreg: Add register fields for PMUACR

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Message-ID: <88f15900-03d2-49f0-bc44-7ded076d9a42@sirena.org.uk>
Date: Tue, 17 Dec 2024 15:32:02 +0000
From: Mark Brown <broonie@...nel.org>
To: Anshuman Khandual <anshuman.khandual@....com>
Cc: Rob Herring <robh@...nel.org>, linux-kernel@...r.kernel.org,
	kvmarm@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	maz@...nel.org, ryan.roberts@....com,
	Oliver Upton <oliver.upton@...ux.dev>,
	James Morse <james.morse@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>
Subject: Re: [PATCH V2 18/46] arm64/sysreg: Add register fields for PMUACR_EL1

On Tue, Dec 17, 2024 at 10:03:10AM +0530, Anshuman Khandual wrote:

> I am wondering how this did not cause any re-definition warning ?

If the redefinition is identical to the one that was already there then
the compiler will usually not warn.

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