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| author | Peter Zijlstra <peterz@infradead.org> | 2021-12-04 14:43:40 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-12-08 12:25:37 +0100 |
| commit | f94909ceb1ed4bfdb2ada72f93236305e6d6951f (patch) | |
| tree | e7368c974b829530e82f34111f1f5ab183504921 /arch/x86/lib/memcpy_64.S | |
| parent | x86/lib/atomic64_386_32: Rename things (diff) | |
| download | linux-f94909ceb1ed4bfdb2ada72f93236305e6d6951f.tar.xz linux-f94909ceb1ed4bfdb2ada72f93236305e6d6951f.zip | |
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/memcpy_64.S')
| -rw-r--r-- | arch/x86/lib/memcpy_64.S | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S index 1cc9da6e29c7..59cf2343f3d9 100644 --- a/arch/x86/lib/memcpy_64.S +++ b/arch/x86/lib/memcpy_64.S @@ -39,7 +39,7 @@ SYM_FUNC_START_WEAK(memcpy) rep movsq movl %edx, %ecx rep movsb - ret + RET SYM_FUNC_END(memcpy) SYM_FUNC_END_ALIAS(__memcpy) EXPORT_SYMBOL(memcpy) @@ -53,7 +53,7 @@ SYM_FUNC_START_LOCAL(memcpy_erms) movq %rdi, %rax movq %rdx, %rcx rep movsb - ret + RET SYM_FUNC_END(memcpy_erms) SYM_FUNC_START_LOCAL(memcpy_orig) @@ -137,7 +137,7 @@ SYM_FUNC_START_LOCAL(memcpy_orig) movq %r9, 1*8(%rdi) movq %r10, -2*8(%rdi, %rdx) movq %r11, -1*8(%rdi, %rdx) - retq + RET .p2align 4 .Lless_16bytes: cmpl $8, %edx @@ -149,7 +149,7 @@ SYM_FUNC_START_LOCAL(memcpy_orig) movq -1*8(%rsi, %rdx), %r9 movq %r8, 0*8(%rdi) movq %r9, -1*8(%rdi, %rdx) - retq + RET .p2align 4 .Lless_8bytes: cmpl $4, %edx @@ -162,7 +162,7 @@ SYM_FUNC_START_LOCAL(memcpy_orig) movl -4(%rsi, %rdx), %r8d movl %ecx, (%rdi) movl %r8d, -4(%rdi, %rdx) - retq + RET .p2align 4 .Lless_3bytes: subl $1, %edx @@ -180,7 +180,7 @@ SYM_FUNC_START_LOCAL(memcpy_orig) movb %cl, (%rdi) .Lend: - retq + RET SYM_FUNC_END(memcpy_orig) .popsection |