diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-12-07 13:13:28 -0500 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-12-22 08:21:02 -0500 |
| commit | a448276ce515c91cde4675be497364b91c764d95 (patch) | |
| tree | e231786f2358f89a66ba958c97ee4e42c35fe259 /arch/arm64/kernel/traps.c | |
| parent | cec8d0e7f06e08b981e9d61bef267c8c36d536f5 (diff) | |
arm64: Use ftrace_graph_get_ret_stack() instead of curr_ret_stack
The structure of the ret_stack array on the task struct is going to
change, and accessing it directly via the curr_ret_stack index will no
longer give the ret_stack entry that holds the return address. To access
that, architectures must now use ftrace_graph_get_ret_stack() to get the
associated ret_stack that matches the saved return address.
Cc: linux-arm-kernel@lists.infradead.org
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/arm64/kernel/traps.c')
| -rw-r--r-- | arch/arm64/kernel/traps.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 5f4d9acb32f5..49ebf3771391 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -122,7 +122,7 @@ void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) frame.pc = thread_saved_pc(tsk); } #ifdef CONFIG_FUNCTION_GRAPH_TRACER - frame.graph = tsk->curr_ret_stack; + frame.graph = 0; #endif skip = !!regs; |