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um: Set HAVE_EFFICIENT_UNALIGNED_ACCESS for x86

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The x86 port of UM has efficient unaligned access. Set the option as it
is appropriate and will e.g. cause UBSAN to not enable unaligned memory
access checking by default.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20240913134442.967599-6-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Benjamin Berg
2024-09-13 15:44:42 +02:00
committed by Johannes Berg
parent 71fae9dfa7
commit 797d3688f9
1 changed files with 1 additions and 0 deletions
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arch/x86/um/Kconfig
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@@ -10,6 +10,7 @@ config UML_X86
def_bool y
select ARCH_BINFMT_ELF_EXTRA_PHDRS if X86_32
select DCACHE_WORD_ACCESS
select HAVE_EFFICIENT_UNALIGNED_ACCESS
config 64BIT
bool "64-bit kernel" if "$(SUBARCH)" = "x86"