linux-kernel - Re: [PATCH] arm64: Delete the zero

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Message-ID: <953cf17b-9476-4215-8c33-b4175a331181@sirena.org.uk>
Date:   Tue, 5 Dec 2023 16:56:51 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Zenghui Yu <yuzenghui@...wei.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        catalin.marinas@....com, will@...nel.org,
        wanghaibin.wang@...wei.com
Subject: Re: [PATCH] arm64: Delete the zero_za macro

On Wed, Dec 06, 2023 at 12:01:40AM +0800, Zenghui Yu wrote:
> zero_za was introduced in commit ca8a4ebcff44 ("arm64/sme: Manually encode
> SME instructions") but doesn't appear to have any in kernel user. Drop it.
> 
> Signed-off-by: Zenghui Yu <yuzenghui@...wei.com>

You're right that this isn't used, though OTOH it's not exactly doing
any harm either and as a macro doesn't inflate the image or anything.

Acked-by: Mark Brown <broonie@...nel.org>

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