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authorPeter Zijlstra <peterz@infradead.org>2021-12-04 16:43:40 +0300
committerBorislav Petkov <bp@suse.de>2021-12-08 14:25:37 +0300
commitf94909ceb1ed4bfdb2ada72f93236305e6d6951f (patch)
treee7368c974b829530e82f34111f1f5ab183504921 /arch/x86/lib/hweight.S
parent22da5a07c75e1104caf6a42f189c97b83d070073 (diff)
downloadlinux-f94909ceb1ed4bfdb2ada72f93236305e6d6951f.tar.xz
x86: Prepare asm files for straight-line-speculation
Replace all ret/retq instructions with RET in preparation of making RET a macro. Since AS is case insensitive it's a big no-op without RET defined. find arch/x86/ -name \*.S | while read file do sed -i 's/\<ret[q]*\>/RET/' $file done Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20211204134907.905503893@infradead.org
Diffstat (limited to 'arch/x86/lib/hweight.S')
-rw-r--r--arch/x86/lib/hweight.S6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/lib/hweight.S b/arch/x86/lib/hweight.S
index dbf8cc97b7f5..12c16c6aa44a 100644
--- a/arch/x86/lib/hweight.S
+++ b/arch/x86/lib/hweight.S
@@ -32,7 +32,7 @@ SYM_FUNC_START(__sw_hweight32)
imull $0x01010101, %eax, %eax # w_tmp *= 0x01010101
shrl $24, %eax # w = w_tmp >> 24
__ASM_SIZE(pop,) %__ASM_REG(dx)
- ret
+ RET
SYM_FUNC_END(__sw_hweight32)
EXPORT_SYMBOL(__sw_hweight32)
@@ -65,7 +65,7 @@ SYM_FUNC_START(__sw_hweight64)
popq %rdx
popq %rdi
- ret
+ RET
#else /* CONFIG_X86_32 */
/* We're getting an u64 arg in (%eax,%edx): unsigned long hweight64(__u64 w) */
pushl %ecx
@@ -77,7 +77,7 @@ SYM_FUNC_START(__sw_hweight64)
addl %ecx, %eax # result
popl %ecx
- ret
+ RET
#endif
SYM_FUNC_END(__sw_hweight64)
EXPORT_SYMBOL(__sw_hweight64)