unwind_frame 28 arch/arm/kernel/stacktrace.c int notrace unwind_frame(struct stackframe *frame) unwind_frame 375 arch/arm/kernel/unwind.c int unwind_frame(struct stackframe *frame) unwind_frame 41 arch/arm64/kernel/stacktrace.c int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame) unwind_frame 23 arch/unicore32/include/asm/stacktrace.h #define unwind_frame(f) (-EINVAL) unwind_frame 33 arch/unicore32/kernel/stacktrace.c int notrace unwind_frame(struct stackframe *frame)