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Date: Sat, 28 May 2022 16:12:36 +0800 From: Yu-Jen Chang <arthurchang09@...il.com> To: ak@...ux.intel.com, jdike@...ux.intel.com Cc: tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com, keescook@...omium.org, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org, richard@....at, anton.ivanov@...bridgegreys.com, johannes@...solutions.net, linux-um@...ts.infradead.org, jserv@...s.ncku.edu.tw, Yu-Jen Chang <arthurchang09@...il.com> Subject: [PATCH 2/2] x86/um: Use x86_64-optimized memchr Add x86_64-optimized memchr, which is 4x faster than the original implementation, into um. Signed-off-by: Yu-Jen Chang <arthurchang09@...il.com> Signed-off-by: Ching-Chun (Jim) Huang <jserv@...s.ncku.edu.tw> --- arch/x86/um/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile index ba5789c35..52b7c21ca 100644 --- a/arch/x86/um/Makefile +++ b/arch/x86/um/Makefile @@ -28,7 +28,7 @@ else obj-y += syscalls_64.o vdso/ -subarch-y = ../lib/csum-partial_64.o ../lib/memcpy_64.o ../entry/thunk_64.o +subarch-y = ../lib/csum-partial_64.o ../lib/memcpy_64.o ../lib/string_64.o ../entry/thunk_64.o endif -- 2.25.1
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