sparc32: fix sparse warnings in pcic.c

Fix following warnings:
pcic.c:164:14: warning: symbol 'pcic_regs' was not declared. Should it be static?
pcic.c:165:14: warning: symbol 'pcic_speculative' was not declared. Should it be static?
pcic.c:166:14: warning: symbol 'pcic_trapped' was not declared. Should it be static?
pcic.c:332:66: warning: Using plain integer as NULL pointer
pcic.c:344:66: warning: Using plain integer as NULL pointer
pcic.c:539:38: warning: Using plain integer as NULL pointer
pcic.c:677:1: warning: symbol 'pcic_pin_to_irq' was not declared. Should it be static?
pcic.c:783:6: warning: symbol 'pcic_nmi' was not declared. Should it be static?

Add extern for pcic_regs.
Define a few variables static.
Replace 0 with NULL.
Delete unused funtion pcic_pin_to_irq().
Include kernel.h so we could drop declaration of
t_nmi and add prototype for pcic_nmi.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 10 insertions, 30 deletions

diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index 8bc2c819f10a..52542419795c 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -140,6 +140,10 @@ void __init clock_stop_probe(void);
 void __init auxio_probe(void);
 void __init auxio_power_probe(void);
 
+/* pcic.c */
+extern void __iomem *pcic_regs;
+void pcic_nmi(unsigned int pend, struct pt_regs *regs);
+
 #else /* CONFIG_SPARC32 */
 #endif /* CONFIG_SPARC32 */
 #endif /* !(__SPARC_KERNEL_H) */
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index aabfcab94325..6cc78c213c01 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -36,6 +36,7 @@
 #include <asm/uaccess.h>
 #include <asm/irq_regs.h>
 
+#include "kernel.h"
 #include "irq.h"
 
 /*
@@ -162,8 +163,8 @@ static int pcic0_up;
 static struct linux_pcic pcic0;
 
 void __iomem *pcic_regs;
-volatile int pcic_speculative;
-volatile int pcic_trapped;
+static volatile int pcic_speculative;
+static volatile int pcic_trapped;
 
 /* forward */
 unsigned int pcic_build_device_irq(struct platform_device *op,
@@ -329,7 +330,7 @@ int __init pcic_probe(void)
 
         pcic->pcic_res_cfg_addr.name = "pcic_cfg_addr";
         if ((pcic->pcic_config_space_addr =
-            ioremap(regs[2].phys_addr, regs[2].reg_size * 2)) == 0) {
+            ioremap(regs[2].phys_addr, regs[2].reg_size * 2)) == NULL) {
                 prom_printf("PCIC: Error, cannot map "
                             "PCI Configuration Space Address.\n");
                 prom_halt();
@@ -341,7 +342,7 @@ int __init pcic_probe(void)
          */
         pcic->pcic_res_cfg_data.name = "pcic_cfg_data";
         if ((pcic->pcic_config_space_data =
-            ioremap(regs[3].phys_addr, regs[3].reg_size * 2)) == 0) {
+            ioremap(regs[3].phys_addr, regs[3].reg_size * 2)) == NULL) {
                 prom_printf("PCIC: Error, cannot map "
                             "PCI Configuration Space Data.\n");
                 prom_halt();
@@ -353,7 +354,6 @@ int __init pcic_probe(void)
         strcpy(pbm->prom_name, namebuf);
 
         {
-                extern volatile int t_nmi[4];
                 extern int pcic_nmi_trap_patch[4];
 
                 t_nmi[0] = pcic_nmi_trap_patch[0];
@@ -536,7 +536,7 @@ pcic_fill_irq(struct linux_pcic *pcic, struct pci_dev *dev, int node)
                 prom_getstring(node, "name", namebuf, sizeof(namebuf));
         }
 
-        if ((p = pcic->pcic_imap) == 0) {
+        if ((p = pcic->pcic_imap) == NULL) {
                 dev->irq = 0;
                 return;
         }
@@ -670,30 +670,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
         }
 }
 
-/*
- * pcic_pin_to_irq() is exported to bus probing code
- */
-unsigned int
-pcic_pin_to_irq(unsigned int pin, const char *name)
-{
-        struct linux_pcic *pcic = &pcic0;
-        unsigned int irq;
-        unsigned int ivec;
-
-        if (pin < 4) {
-                ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO);
-                irq = ivec >> (pin << 2) & 0xF;
-        } else if (pin < 8) {
-                ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI);
-                irq = ivec >> ((pin-4) << 2) & 0xF;
-        } else {                                        /* Corrupted map */
-                printk("PCIC: BAD PIN %d FOR %s\n", pin, name);
-                for (;;) {}     /* XXX Cannot panic properly in case of PROLL */
-        }
-/* P3 */ /* printk("PCIC: dev %s pin %d ivec 0x%x irq %x\n", name, pin, ivec, irq); */
-        return irq;
-}
-
 /* Makes compiler happy */
 static volatile int pcic_timer_dummy;