[PATCH v10 04/11] arm64: Make return_address() use arch_stack_walk()
From: <hidden>
Date: 2021-10-15 02:59:32
Also in:
live-patching, lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
From: "Madhavan T. Venkataraman" <redacted> Currently, return_address() in ARM64 code walks the stack using start_backtrace() and walk_stackframe(). Make it use arch_stack_walk() instead. This makes maintenance easier. Signed-off-by: Madhavan T. Venkataraman <redacted> --- arch/arm64/kernel/return_address.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/arch/arm64/kernel/return_address.c b/arch/arm64/kernel/return_address.c
index a6d18755652f..92a0f4d434e4 100644
--- a/arch/arm64/kernel/return_address.c
+++ b/arch/arm64/kernel/return_address.c@@ -35,15 +35,11 @@ NOKPROBE_SYMBOL(save_return_addr); void *return_address(unsigned int level) { struct return_address_data data; - struct stackframe frame; data.level = level + 2; data.addr = NULL; - start_backtrace(&frame, - (unsigned long)__builtin_frame_address(0), - (unsigned long)return_address); - walk_stackframe(current, &frame, save_return_addr, &data); + arch_stack_walk(save_return_addr, &data, current, NULL); if (!data.level) return data.addr;
--
2.25.1
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