[RFC PATCH 15/28] x86/sync_core: Use RIP-relative addressing

[Ard Biesheuvel]

From: Ard Biesheuvel <a...@kernel.org>

Use RIP-relative accesses and avoid fixups at runtime.

Signed-off-by: Ard Biesheuvel <a...@kernel.org>
---
 arch/x86/include/asm/sync_core.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/sync_core.h b/arch/x86/include/asm/sync_core.h
index ab7382f92aff..cfd2f3bca83b 100644
--- a/arch/x86/include/asm/sync_core.h
+++ b/arch/x86/include/asm/sync_core.h
@@ -31,7 +31,8 @@ static inline void iret_to_self(void)
                "pushfq\n\t"
                "mov %%cs, %0\n\t"
                "pushq %q0\n\t"
-               "pushq $1f\n\t"
+               "leaq 1f(%%rip), %q0\n\t"
+               "pushq %q0\n\t"
                "iretq\n\t"
                "1:"
                : "=&r" (tmp), ASM_CALL_CONSTRAINT : : "cc", "memory");
-- 
2.46.0.792.g87dc391469-goog