irqchip: mips-gic: Remove gic_present

Nothing uses the global gic_present variable anymore; mips_gic_present()
should be used instead. Remove the dead code.
Signed-off-by: NPaul Burton <paul.burton@imgtec.com>
Acked-by: NMarc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17045/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

drivers/irqchip/irq-mips-gic.c

@@ -39,7 +39,6 @@
 #define GIC_SHARED_TO_HWIRQ(x)	(GIC_SHARED_HWIRQ_BASE + (x))
 #define GIC_HWIRQ_TO_SHARED(x)	((x) - GIC_SHARED_HWIRQ_BASE)
 
-unsigned int gic_present;
 void __iomem *mips_gic_base;
 
 struct gic_pcpu_mask {
@@ -781,7 +780,6 @@ static int __init gic_of_init(struct device_node *node,
 		/* Ensure GIC region is enabled before trying to access it */
 		__sync();
 	}
-	gic_present = true;
 
 	__gic_init(gic_base, gic_len, cpu_vec, 0, node);
 

include/linux/irqchip/mips-gic.h

@@ -17,16 +17,10 @@
 
 #ifdef CONFIG_MIPS_GIC
 
-extern unsigned int gic_present;
-
 extern int gic_get_c0_compare_int(void);
 extern int gic_get_c0_perfcount_int(void);
 extern int gic_get_c0_fdc_int(void);
 
-#else /* CONFIG_MIPS_GIC */
-
-#define gic_present	0
-
 #endif /* CONFIG_MIPS_GIC */
 
 #endif /* __LINUX_IRQCHIP_MIPS_GIC_H */