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UPSTREAM: arm64: unexport walk_stackframe

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The walk_stackframe functions is architecture-specific, with a varying
prototype, and common code should not use it directly. None of its
current users can be built as modules. With THREAD_INFO_IN_TASK, users
will also need to hold a stack reference before calling it.

There's no reason for it to be exported, and it's very easy to misuse,
so unexport it for now.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Bug: 38331309
Change-Id: Ibe0dca36cc7d35f92c6bc13b373755d82f0eb9ef
(cherry picked from commit 2020a5ae7c)
Signed-off-by: Zubin Mithra <zsm@google.com>
This commit is contained in:
Mark Rutland
2016-11-03 20:23:07 +00:00
committed by Zubin Mithra
parent 62c30ed34e
commit f00a4a09f4
1 changed files with 0 additions and 1 deletions
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arch/arm64/kernel/stacktrace.c
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@@ -126,7 +126,6 @@ void notrace walk_stackframe(struct task_struct *tsk, struct stackframe *frame,
break;
}
}
EXPORT_SYMBOL(walk_stackframe);
#ifdef CONFIG_STACKTRACE
struct stack_trace_data {