linux-kernel - [PATCH v5 3/3] lib/lzo: fast 8-byte copy on arm64

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Date:   Tue, 5 Feb 2019 14:20:09 +0000
From:   Dave Rodgman <dave.rodgman@....com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Matt Sealey <Matt.Sealey@....com>,
        Dave Rodgman <dave.rodgman@....com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
        "markus@...rhumer.com" <markus@...rhumer.com>,
        "minchan@...nel.org" <minchan@...nel.org>,
        "nitingupta910@...il.com" <nitingupta910@...il.com>,
        "rpurdie@...nedhand.com" <rpurdie@...nedhand.com>,
        "sergey.senozhatsky.work@...il.com" 
        <sergey.senozhatsky.work@...il.com>,
        "sonnyrao@...gle.com" <sonnyrao@...gle.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "sfr@...b.auug.org.au" <sfr@...b.auug.org.au>
CC:     nd <nd@....com>
Subject: [PATCH v5 3/3] lib/lzo: fast 8-byte copy on arm64

From: Matt Sealey <matt.sealey@....com>

Enable faster 8-byte copies on arm64.

Link: http://lkml.kernel.org/r/20181127161913.23863-6-dave.rodgman@arm.com
Signed-off-by: Matt Sealey <matt.sealey@....com>
Signed-off-by: Dave Rodgman <dave.rodgman@....com>
Cc: David S. Miller <davem@...emloft.net>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Herbert Xu <herbert@...dor.apana.org.au>
Cc: Markus F.X.J. Oberhumer <markus@...rhumer.com>
Cc: Minchan Kim <minchan@...nel.org>
Cc: Nitin Gupta <nitingupta910@...il.com>
Cc: Richard Purdie <rpurdie@...nedhand.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc: Sonny Rao <sonnyrao@...gle.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 lib/lzo/lzodefs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/lzo/lzodefs.h b/lib/lzo/lzodefs.h
index 00d1080155e4..fa0a45fed8c4 100644
--- a/lib/lzo/lzodefs.h
+++ b/lib/lzo/lzodefs.h
@@ -15,7 +15,7 @@
 
 #define COPY4(dst, src)	\
 		put_unaligned(get_unaligned((const u32 *)(src)), (u32 *)(dst))
-#if defined(CONFIG_X86_64)
+#if defined(CONFIG_X86_64) || defined(CONFIG_ARM64)
 #define COPY8(dst, src)	\
 		put_unaligned(get_unaligned((const u64 *)(src)), (u64 *)(dst))
 #else
-- 
2.17.1