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authorPeter Zijlstra <peterz@infradead.org>2021-12-04 14:43:40 +0100
committerBorislav Petkov <bp@suse.de>2021-12-08 12:25:37 +0100
commitf94909ceb1ed4bfdb2ada72f93236305e6d6951f (patch)
treee7368c974b829530e82f34111f1f5ab183504921 /arch/x86/kernel/ftrace_32.S
parent22da5a07c75e1104caf6a42f189c97b83d070073 (diff)
downloadlinux-f94909ceb1ed4bfdb2ada72f93236305e6d6951f.tar.gz
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/kernel/ftrace_32.S')
-rw-r--r--arch/x86/kernel/ftrace_32.S6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index e405fe1a8bf4..a0ed0e4a2c0c 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -19,7 +19,7 @@
 #endif
 
 SYM_FUNC_START(__fentry__)
-	ret
+	RET
 SYM_FUNC_END(__fentry__)
 EXPORT_SYMBOL(__fentry__)
 
@@ -84,7 +84,7 @@ ftrace_graph_call:
 
 /* This is weak to keep gas from relaxing the jumps */
 SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
-	ret
+	RET
 SYM_CODE_END(ftrace_caller)
 
 SYM_CODE_START(ftrace_regs_caller)
@@ -177,7 +177,7 @@ SYM_CODE_START(ftrace_graph_caller)
 	popl	%edx
 	popl	%ecx
 	popl	%eax
-	ret
+	RET
 SYM_CODE_END(ftrace_graph_caller)
 
 .globl return_to_handler