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x86/dumpstack: Remove dump_trace() and related callbacks

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All previous users of dump_trace() have been converted to use the new
unwind interfaces, so we can remove it and the related
print_context_stack() and print_context_stack_bp() callback functions.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/5b97da3572b40b5a4d8e185cf2429308d0987a13.1474045023.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Josh Poimboeuf 2016-09-16 14:18:17 -05:00 • committed by Ingo Molnar
parent e18bcccd1a
commit c8fe460982
4 changed files with 0 additions and 226 deletions
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35
arch/x86/kernel/dumpstack_32.c
View file

@ -121,41 +121,6 @@ unknown:
return -EINVAL;
}
void dump_trace(struct task_struct *task, struct pt_regs *regs,
unsigned long *stack, unsigned long bp,
const struct stacktrace_ops *ops, void *data)
{
unsigned long visit_mask = 0;
int graph = 0;
task = task ? : current;
stack = stack ? : get_stack_pointer(task, regs);
bp = bp ? : (unsigned long)get_frame_pointer(task, regs);
for (;;) {
const char *begin_str, *end_str;
struct stack_info info;
if (get_stack_info(stack, task, &info, &visit_mask))
break;
stack_type_str(info.type, &begin_str, &end_str);
if (begin_str && ops->stack(data, begin_str) < 0)
break;
bp = ops->walk_stack(task, stack, bp, ops, data, &info, &graph);
if (end_str && ops->stack(data, end_str) < 0)
break;
stack = info.next_sp;
touch_nmi_watchdog();
}
}
EXPORT_SYMBOL(dump_trace);
void show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
unsigned long *sp, char *log_lvl)
{