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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-07-23 09:05:38 +0100
committerMark Rutland <mark.rutland@arm.com>2017-08-09 14:10:29 +0100
commit31e43ad3b74a5d7b282023b72f25fc677c14c727 (patch)
tree8329fe0b3d9d9f51f9bcc6390f9526e70b922aaf /arch/arm64/include/asm/stacktrace.h
parentarm64: unwind: reference pt_regs via embedded stack frame (diff)
downloadlinux-dev-31e43ad3b74a5d7b282023b72f25fc677c14c727.tar.xz
linux-dev-31e43ad3b74a5d7b282023b72f25fc677c14c727.zip
arm64: unwind: remove sp from struct stackframe
The unwind code sets the sp member of struct stackframe to 'frame pointer + 0x10' unconditionally, without regard for whether doing so produces a legal value. So let's simply remove it now that we have stopped using it anyway. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will.deacon@arm.com>
Diffstat (limited to '')
-rw-r--r--arch/arm64/include/asm/stacktrace.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h
index 5b6eafccc5d8..3bebab378c72 100644
--- a/arch/arm64/include/asm/stacktrace.h
+++ b/arch/arm64/include/asm/stacktrace.h
@@ -20,7 +20,6 @@ struct task_struct;
struct stackframe {
unsigned long fp;
- unsigned long sp;
unsigned long pc;
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
unsigned int graph;