Lines Matching refs:buftail
26 struct frame_tail buftail; in user_backtrace() local
31 if (!access_ok(tail, sizeof(buftail))) in user_backtrace()
35 err = __copy_from_user_inatomic(&buftail, tail, sizeof(buftail)); in user_backtrace()
41 lr = ptrauth_strip_insn_pac(buftail.lr); in user_backtrace()
49 if (tail >= buftail.fp) in user_backtrace()
52 return buftail.fp; in user_backtrace()
74 struct compat_frame_tail buftail; in compat_user_backtrace() local
78 if (!access_ok(tail, sizeof(buftail))) in compat_user_backtrace()
82 err = __copy_from_user_inatomic(&buftail, tail, sizeof(buftail)); in compat_user_backtrace()
88 perf_callchain_store(entry, buftail.lr); in compat_user_backtrace()
95 compat_ptr(buftail.fp)) in compat_user_backtrace()
98 return (struct compat_frame_tail __user *)compat_ptr(buftail.fp) - 1; in compat_user_backtrace()