[PATCH] make Alpha use generic copy_siginfo_to_user

  Having looked closer than before, it seems that Alpha can
  use the generic copy_siginfo_to_user function.

arch/alpha/kernel/signal.c

@@ -36,36 +36,6 @@ static int do_signal(sigset_t *, struct pt_regs *, struct switch_stack *,
 		     unsigned long, unsigned long);
 
 
-int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from)
-{
-	if (!access_ok (VERIFY_WRITE, to, sizeof(siginfo_t)))
-		return -EFAULT;
-	if (from->si_code < 0)
-		return __copy_to_user(to, from, sizeof(siginfo_t));
-	else {
-		int err;
-
-		/* If you change siginfo_t structure, please be sure
-		   this code is fixed accordingly.
-		   It should never copy any pad contained in the structure
-		   to avoid security leaks, but must copy the generic
-		   3 ints plus the relevant union member.  */
-		err = __put_user(*(long *)&from->si_signo, (long *)&to->si_signo);
-		err |= __put_user((short)from->si_code, &to->si_code);
-		switch (from->si_code >> 16) {
-		case __SI_CHLD >> 16:
-			err |= __put_user(from->si_utime, &to->si_utime);
-			err |= __put_user(from->si_stime, &to->si_stime);
-			err |= __put_user(from->si_status, &to->si_status);
-		default:
-			err |= __put_user(from->si_addr, &to->si_addr);
-			break;
-		/* case __SI_RT: This is not generated by the kernel as of now.  */
-		}
-		return err;
-	}
-}
-
 /*
  * The OSF/1 sigprocmask calling sequence is different from the
  * C sigprocmask() sequence..

include/asm-alpha/siginfo.h

@@ -6,7 +6,6 @@
 #define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 4)
 
 #define HAVE_ARCH_COPY_SIGINFO
-#define HAVE_ARCH_COPY_SIGINFO_TO_USER
 
 #include <asm-generic/siginfo.h>