[IA64] simplify notify hooks in mca.c

There are many notify_die() and almost all take same style with
ia64_mca_spin().  This patch defines macros and replace them all,
to reduce lines and to improve readability.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

3 files changed, 38 insertions, 41 deletions

diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index 90ef338cf46f..f065093f8e9b 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -194,8 +194,8 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
                         unw_init_running(kdump_cpu_freeze, NULL);
                 break;
         case DIE_MCA_MONARCH_LEAVE:
-                /* die_register->signr indicate if MCA is recoverable */
-                if (kdump_on_fatal_mca && !args->signr) {
+                /* *(nd->data) indicate if MCA is recoverable */
+                if (kdump_on_fatal_mca && !(*(nd->data))) {
                         atomic_set(&kdump_in_progress, 1);
                         *(nd->monarch_cpu) = -1;
                         machine_kdump_on_init();
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 3ba091bb20c9..705176b434b3 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -109,6 +109,20 @@
 # define IA64_MCA_DEBUG(fmt...)
 #endif
 
+#define NOTIFY_INIT(event, regs, arg, spin)                             \
+do {                                                                    \
+        if ((notify_die((event), "INIT", (regs), (arg), 0, 0)           \
+                        == NOTIFY_STOP) && ((spin) == 1))               \
+                ia64_mca_spin(__func__);                                \
+} while (0)
+
+#define NOTIFY_MCA(event, regs, arg, spin)                              \
+do {                                                                    \
+        if ((notify_die((event), "MCA", (regs), (arg), 0, 0)            \
+                        == NOTIFY_STOP) && ((spin) == 1))               \
+                ia64_mca_spin(__func__);                                \
+} while (0)
+
 /* Used by mca_asm.S */
 DEFINE_PER_CPU(u64, ia64_mca_data); /* == __per_cpu_mca[smp_processor_id()] */
 DEFINE_PER_CPU(u64, ia64_mca_per_cpu_pte); /* PTE to map per-CPU area */
@@ -766,9 +780,8 @@ ia64_mca_rendez_int_handler(int rendez_irq, void *arg)
 
         /* Mask all interrupts */
         local_irq_save(flags);
-        if (notify_die(DIE_MCA_RENDZVOUS_ENTER, "MCA", get_irq_regs(),
-                       (long)&nd, 0, 0) == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
+
+        NOTIFY_MCA(DIE_MCA_RENDZVOUS_ENTER, get_irq_regs(), (long)&nd, 1);
 
         ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_DONE;
         /* Register with the SAL monarch that the slave has
@@ -776,17 +789,13 @@ ia64_mca_rendez_int_handler(int rendez_irq, void *arg)
          */
         ia64_sal_mc_rendez();
 
-        if (notify_die(DIE_MCA_RENDZVOUS_PROCESS, "MCA", get_irq_regs(),
-                       (long)&nd, 0, 0) == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
+        NOTIFY_MCA(DIE_MCA_RENDZVOUS_PROCESS, get_irq_regs(), (long)&nd, 1);
 
         /* Wait for the monarch cpu to exit. */
         while (monarch_cpu != -1)
                cpu_relax();     /* spin until monarch leaves */
 
-        if (notify_die(DIE_MCA_RENDZVOUS_LEAVE, "MCA", get_irq_regs(),
-                       (long)&nd, 0, 0) == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
+        NOTIFY_MCA(DIE_MCA_RENDZVOUS_LEAVE, get_irq_regs(), (long)&nd, 1);
 
         ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
         /* Enable all interrupts */
@@ -1256,7 +1265,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
         int recover, cpu = smp_processor_id();
         struct task_struct *previous_current;
         struct ia64_mca_notify_die nd =
-                { .sos = sos, .monarch_cpu = &monarch_cpu };
+                { .sos = sos, .monarch_cpu = &monarch_cpu, .data = &recover };
         static atomic_t mca_count;
         static cpumask_t mca_cpu;
 
@@ -1272,9 +1281,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
 
         previous_current = ia64_mca_modify_original_stack(regs, sw, sos, "MCA");
 
-        if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, (long)&nd, 0, 0)
-                        == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
+        NOTIFY_MCA(DIE_MCA_MONARCH_ENTER, regs, (long)&nd, 1);
 
         ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_CONCURRENT_MCA;
         if (sos->monarch) {
@@ -1293,9 +1300,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
                         cpu_relax();    /* spin until monarch wakes us */
         }
 
-        if (notify_die(DIE_MCA_MONARCH_PROCESS, "MCA", regs, (long)&nd, 0, 0)
-                        == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
+        NOTIFY_MCA(DIE_MCA_MONARCH_PROCESS, regs, (long)&nd, 1);
 
         /* Get the MCA error record and log it */
         ia64_mca_log_sal_error_record(SAL_INFO_TYPE_MCA);
@@ -1321,9 +1326,7 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
                 mca_insert_tr(0x2); /*Reload dynamic itrs*/
         }
 
-        if (notify_die(DIE_MCA_MONARCH_LEAVE, "MCA", regs, (long)&nd, 0, recover)
-                        == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
+        NOTIFY_MCA(DIE_MCA_MONARCH_LEAVE, regs, (long)&nd, 1);
 
         if (atomic_dec_return(&mca_count) > 0) {
                 int i;
@@ -1644,7 +1647,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
         struct ia64_mca_notify_die nd =
                 { .sos = sos, .monarch_cpu = &monarch_cpu };
 
-        (void) notify_die(DIE_INIT_ENTER, "INIT", regs, (long)&nd, 0, 0);
+        NOTIFY_INIT(DIE_INIT_ENTER, regs, (long)&nd, 0);
 
         mprintk(KERN_INFO "Entered OS INIT handler. PSP=%lx cpu=%d monarch=%ld\n",
                 sos->proc_state_param, cpu, sos->monarch);
@@ -1681,17 +1684,15 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
                 ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_INIT;
                 while (monarch_cpu == -1)
                        cpu_relax();     /* spin until monarch enters */
-                if (notify_die(DIE_INIT_SLAVE_ENTER, "INIT", regs, (long)&nd, 0, 0)
-                                == NOTIFY_STOP)
-                        ia64_mca_spin(__func__);
-                if (notify_die(DIE_INIT_SLAVE_PROCESS, "INIT", regs, (long)&nd, 0, 0)
-                                == NOTIFY_STOP)
-                        ia64_mca_spin(__func__);
+
+                NOTIFY_INIT(DIE_INIT_SLAVE_ENTER, regs, (long)&nd, 1);
+                NOTIFY_INIT(DIE_INIT_SLAVE_PROCESS, regs, (long)&nd, 1);
+
                 while (monarch_cpu != -1)
                        cpu_relax();     /* spin until monarch leaves */
-                if (notify_die(DIE_INIT_SLAVE_LEAVE, "INIT", regs, (long)&nd, 0, 0)
-                                == NOTIFY_STOP)
-                        ia64_mca_spin(__func__);
+
+                NOTIFY_INIT(DIE_INIT_SLAVE_LEAVE, regs, (long)&nd, 1);
+
                 mprintk("Slave on cpu %d returning to normal service.\n", cpu);
                 set_curr_task(cpu, previous_current);
                 ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
@@ -1700,9 +1701,7 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
         }
 
         monarch_cpu = cpu;
-        if (notify_die(DIE_INIT_MONARCH_ENTER, "INIT", regs, (long)&nd, 0, 0)
-                        == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
+        NOTIFY_INIT(DIE_INIT_MONARCH_ENTER, regs, (long)&nd, 1);
 
         /*
          * Wait for a bit.  On some machines (e.g., HP's zx2000 and zx6000, INIT can be
@@ -1717,12 +1716,9 @@ ia64_init_handler(struct pt_regs *regs, struct switch_stack *sw,
          * to default_monarch_init_process() above and just print all the
          * tasks.
          */
-        if (notify_die(DIE_INIT_MONARCH_PROCESS, "INIT", regs, (long)&nd, 0, 0)
-                        == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
-        if (notify_die(DIE_INIT_MONARCH_LEAVE, "INIT", regs, (long)&nd, 0, 0)
-                        == NOTIFY_STOP)
-                ia64_mca_spin(__func__);
+        NOTIFY_INIT(DIE_INIT_MONARCH_PROCESS, regs, (long)&nd, 1);
+        NOTIFY_INIT(DIE_INIT_MONARCH_LEAVE, regs, (long)&nd, 1);
+
         mprintk("\nINIT dump complete.  Monarch on cpu %d returning to normal service.\n", cpu);
         atomic_dec(&monarchs);
         set_curr_task(cpu, previous_current);
@@ -1954,7 +1950,7 @@ ia64_mca_init(void)
                         printk(KERN_INFO "Increasing MCA rendezvous timeout from "
                                 "%ld to %ld milliseconds\n", timeout, isrv.v0);
                         timeout = isrv.v0;
-                        (void) notify_die(DIE_MCA_NEW_TIMEOUT, "MCA", NULL, timeout, 0, 0);
+                        NOTIFY_MCA(DIE_MCA_NEW_TIMEOUT, NULL, timeout, 0);
                         continue;
                 }
                 printk(KERN_ERR "Failed to register rendezvous interrupt "
diff --git a/include/asm-ia64/mca.h b/include/asm-ia64/mca.h
index f1663aa94a52..18a4321349a3 100644
--- a/include/asm-ia64/mca.h
+++ b/include/asm-ia64/mca.h
@@ -157,6 +157,7 @@ extern void ia64_mca_printk(const char * fmt, ...)
 struct ia64_mca_notify_die {
         struct ia64_sal_os_state *sos;
         int *monarch_cpu;
+        int *data;
 };
 
 DECLARE_PER_CPU(u64, ia64_mca_pal_base);