Suppress clang warnings about potential unaliged accesses
to members in packed structs. This gets rid of almost 10,000
warnings about accesses to the ring 0 stack pointer in the TSS.
Signed-off-by: Michael Davidson <md@xxxxxxxxxx>
---
arch/x86/Makefile | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 894a8d18bf97..7f21703c475d 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -128,6 +128,11 @@ endif
KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args)
endif
+ifeq ($(cc-name),clang)
+# Suppress clang warnings about potential unaligned accesses.
+KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
+endif
+
ifdef CONFIG_X86_X32
x32_ld_ok := $(call try-run,\
/bin/echo -e '1: .quad 1b' | \
--
2.12.0.367.g23dc2f6d3c-goog
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