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

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Message-ID: <20231205160140.1438-1-yuzenghui@huawei.com>
Date:   Wed, 6 Dec 2023 00:01:40 +0800
From:   Zenghui Yu <yuzenghui@...wei.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <catalin.marinas@....com>, <will@...nel.org>, <broonie@...nel.org>,
        <wanghaibin.wang@...wei.com>, Zenghui Yu <yuzenghui@...wei.com>
Subject: [PATCH] arm64: Delete the zero_za macro

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>
---
 arch/arm64/include/asm/fpsimdmacros.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm64/include/asm/fpsimdmacros.h b/arch/arm64/include/asm/fpsimdmacros.h
index cdf6a35e3994..cda81d009c9b 100644
--- a/arch/arm64/include/asm/fpsimdmacros.h
+++ b/arch/arm64/include/asm/fpsimdmacros.h
@@ -242,14 +242,6 @@
 		| (\nx << 5)
 .endm
 
-/*
- * Zero the entire ZA array
- *	ZERO ZA
- */
-.macro zero_za
-	.inst 0xc00800ff
-.endm
-
 .macro __for from:req, to:req
 	.if (\from) == (\to)
 		_for__body %\from
-- 
2.33.0