[PATCH] alpha update

- signal update; make do_signal use generic get_signal_to_deliver()
- irqs_disabled macro
- remove vmlinux.lds.s target from arch/alpha/Makefile since it works
  correctly in the top level Makefile
- extra argument for pcibios_enable_device (most likely we'll never
  use it though...)

arch/alpha/Makefile

@@ -128,9 +128,6 @@ archmrproper:
 
 vmlinux: arch/alpha/vmlinux.lds.s
 
-arch/$(ARCH)/vmlinux.lds.s: arch/$(ARCH)/vmlinux.lds.S
-	$(CPP) $(CPPFLAGS) $(CPPFLAGS_$@) -D__ASSEMBLY__ -P -C -U$(ARCH) $< -o $@
-
 bootpfile:
 	@$(MAKEBOOT) bootpfile
 

arch/alpha/kernel/init_task.c

@@ -8,7 +8,7 @@
 
 static struct fs_struct init_fs = INIT_FS;
 static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS;
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 struct mm_struct init_mm = INIT_MM(init_mm);
 struct task_struct init_task = INIT_TASK(init_task);
 

arch/alpha/kernel/pci.c

@@ -343,7 +343,7 @@ pcibios_fixup_pbus_ranges(struct pci_bus * bus,
 }
 
 int
-pcibios_enable_device(struct pci_dev *dev)
+pcibios_enable_device(struct pci_dev *dev, int mask)
 {
 	/* Nothing to do, since we enable all devices at startup.  */
 	return 0;

arch/alpha/kernel/signal.c

@@ -592,108 +592,19 @@ static int
 do_signal(sigset_t *oldset, struct pt_regs * regs, struct switch_stack * sw,
 	  unsigned long r0, unsigned long r19)
 {
+	siginfo_t info;
+	int signr;
 	unsigned long single_stepping = ptrace_cancel_bpt(current);
 
 	if (!oldset)
 		oldset = &current->blocked;
 
-	while (1) {
-		unsigned long signr;
-		struct k_sigaction *ka;
-		siginfo_t info;
-
-		spin_lock_irq(&current->sigmask_lock);
-		signr = dequeue_signal(&current->blocked, &info);
-		spin_unlock_irq(&current->sigmask_lock);
-
-		if (!signr)
-			break;
-
-		if ((current->ptrace & PT_PTRACED) && signr != SIGKILL) {
-			/* Let the debugger run.  */
-			current->exit_code = signr;
-			current->state = TASK_STOPPED;
-			notify_parent(current, SIGCHLD);
-			schedule();
-			single_stepping |= ptrace_cancel_bpt(current);
-
-			/* We're back.  Did the debugger cancel the sig?  */
-			if (!(signr = current->exit_code))
-				continue;
-			current->exit_code = 0;
-
-			/* The debugger continued.  Ignore SIGSTOP.  */
-			if (signr == SIGSTOP)
-				continue;
-
-			/* Update the siginfo structure.  Is this good?  */
-			if (signr != info.si_signo) {
-				info.si_signo = signr;
-				info.si_errno = 0;
-				info.si_code = SI_USER;
-				info.si_pid = current->parent->pid;
-				info.si_uid = current->parent->uid;
-			}
-
-			/* If the (new) signal is now blocked, requeue it.  */
-			if (sigismember(&current->blocked, signr)) {
-				send_sig_info(signr, &info, current);
-				continue;
-			}
-		}
-
-		ka = &current->sig->action[signr-1];
-		if (ka->sa.sa_handler == SIG_IGN) {
-			if (signr != SIGCHLD)
-				continue;
-			/* Check for SIGCHLD: it's special.  */
-			while (sys_wait4(-1, NULL, WNOHANG, NULL) > 0)
-				/* nothing */;
-			continue;
-		}
-
-		if (ka->sa.sa_handler == SIG_DFL) {
-			int exit_code = signr & 0x7f;
-
-			/* Init gets no signals it doesn't want.  */
-			if (current->pid == 1)
-				continue;
-
-			switch (signr) {
-			case SIGCONT: case SIGCHLD: case SIGWINCH:
-				continue;
-
-			case SIGTSTP: case SIGTTIN: case SIGTTOU:
-				if (is_orphaned_pgrp(current->pgrp))
-					continue;
-				/* FALLTHRU */
-
-			case SIGSTOP:
-				current->state = TASK_STOPPED;
-				current->exit_code = signr;
-				if (!(current->parent->sig->action[SIGCHLD-1]
-				      .sa.sa_flags & SA_NOCLDSTOP))
-					notify_parent(current, SIGCHLD);
-				schedule();
-				single_stepping |= ptrace_cancel_bpt(current);
-				continue;
-
-			case SIGQUIT: case SIGILL: case SIGTRAP:
-			case SIGABRT: case SIGFPE: case SIGSEGV:
-			case SIGBUS: case SIGSYS: case SIGXCPU: case SIGXFSZ:
-				if (do_coredump(signr, regs))
-					exit_code |= 0x80;
-				/* FALLTHRU */
-
-			default:
-				lock_kernel();
-				sig_exit(signr, exit_code, &info);
-				/* NOTREACHED */
-			}
-			continue;
-		}
+	signr = get_signal_to_deliver(&info, regs);
 
+	if (signr > 0) {
 		/* Whee!  Actually deliver the signal.  */
+		struct k_sigaction *ka = &current->sig->action[signr-1];
+
 		if (r0) syscall_restart(r0, r19, regs, ka);
 		handle_signal(signr, ka, &info, oldset, regs, sw);
 		if (single_stepping) 

include/asm-alpha/signal.h

@@ -186,7 +186,6 @@ struct sigstack {
 #ifdef __KERNEL__
 #include <asm/sigcontext.h>
 
-#define HAVE_ARCH_GET_SIGNAL_TO_DELIVER
 #define HAVE_ARCH_SYS_PAUSE
 
 #endif

include/asm-alpha/system.h

@@ -311,6 +311,8 @@ extern int __min_ipl;
 #define local_irq_save(flags)	do { (flags) = swpipl(IPL_MAX); barrier(); } while(0)
 #define local_irq_restore(flags)	do { barrier(); setipl(flags); barrier(); } while(0)
 
+#define irqs_disabled()	(getipl() == IPL_MAX)
+
 /*
  * TB routines..
  */