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authorPeter Zijlstra <peterz@infradead.org>2021-12-04 14:43:41 +0100
committerBorislav Petkov <bp@suse.de>2021-12-08 19:23:12 +0100
commitb17c2baa305cccbd16bafa289fd743cc2db77966 (patch)
treedd6c3b4e52c2f9bb1040c6f84f59244ea7ece435 /arch/x86/lib
parentf94909ceb1ed4bfdb2ada72f93236305e6d6951f (diff)
x86: Prepare inline-asm for straight-line-speculation
Replace all ret/retq instructions with ASM_RET in preparation of making it more than a single instruction. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20211204134907.964635458@infradead.org
Diffstat (limited to 'arch/x86/lib')
-rw-r--r--arch/x86/lib/error-inject.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/lib/error-inject.c b/arch/x86/lib/error-inject.c
index be5b5fb1598b..520897061ee0 100644
--- a/arch/x86/lib/error-inject.c
+++ b/arch/x86/lib/error-inject.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
+#include <linux/linkage.h>
#include <linux/error-injection.h>
#include <linux/kprobes.h>
@@ -10,7 +11,7 @@ asm(
".type just_return_func, @function\n"
".globl just_return_func\n"
"just_return_func:\n"
- " ret\n"
+ ASM_RET
".size just_return_func, .-just_return_func\n"
);