diff options
| -rw-r--r-- | arch/sh/oprofile/backtrace.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/sh/oprofile/backtrace.c b/arch/sh/oprofile/backtrace.c index 37cd75d7930..2bc74de23f0 100644 --- a/arch/sh/oprofile/backtrace.c +++ b/arch/sh/oprofile/backtrace.c @@ -81,33 +81,6 @@ user_backtrace(unsigned long *stackaddr, struct pt_regs *regs) return stackaddr; } -/* - * | | /\ Higher addresses - * | | - * --------------- stack base (address of current_thread_info) - * | thread info | - * . . - * | stack | - * --------------- saved regs->regs[15] value if valid - * . . - * --------------- struct pt_regs stored on stack (struct pt_regs *) - * | | - * . . - * | | - * --------------- ??? - * | | - * | | \/ Lower addresses - * - * Thus, &pt_regs <-> stack base restricts the valid(ish) fp values - */ -static int valid_kernel_stack(unsigned long *stackaddr, struct pt_regs *regs) -{ - unsigned long stack = (unsigned long)regs; - unsigned long stack_base = (stack & ~(THREAD_SIZE - 1)) + THREAD_SIZE; - - return ((unsigned long)stackaddr > stack) && ((unsigned long)stackaddr < stack_base); -} - void sh_backtrace(struct pt_regs * const regs, unsigned int depth) { unsigned long *stackaddr; |