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authorPeter Zijlstra <peterz@infradead.org>2021-11-15 17:46:39 +0100
committerPeter Zijlstra <peterz@infradead.org>2021-12-11 09:09:45 +0100
commitc6dbd3e5e69cf3ca47a3864115d4cbdd44619243 (patch)
tree1b0c415e73a50ff8f0e036856c325ceccf0db483 /arch/x86/Kconfig
parentbff8c3848e071d387d8b0784dc91fa49cd563774 (diff)
downloadlinux-c6dbd3e5e69cf3ca47a3864115d4cbdd44619243.tar.gz
x86/mmx_32: Remove X86_USE_3DNOW
This code puts an exception table entry on the PREFETCH instruction to
overwrite it with a JMP.d8 when it triggers an exception. Except of
course, our code is no longer writable, also SMP.

Instead of fixing this broken mess, simply take it out.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/YZKQzUmeNuwyvZpk@hirez.programming.kicks-ass.net
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index dd13ba82ce7a..0c9c680fd15a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1957,7 +1957,7 @@ config EFI
 
 config EFI_STUB
 	bool "EFI stub support"
-	depends on EFI && !X86_USE_3DNOW
+	depends on EFI
 	depends on $(cc-option,-mabi=ms) || X86_32
 	select RELOCATABLE
 	help