sw64: simplify do_entInt()

Sunway inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I56OLG

--------------------------------

It has already disabled interrupt in hmcode and it's unnecessary to
disable again in do_entInt(). This way, do_entInt() is a wrapper of
handle_chip_irq(), so simplify it.
Signed-off-by: NHe Chuyue <hechuyue@wxiat.com>
Signed-off-by: NGu Zitao <guzitao@wxiat.com>

arch/sw_64/chip/chip3/chip.c

@@ -656,7 +656,7 @@ static void handle_dev_int(struct pt_regs *regs)
 	sw64_io_write(node, DEV_INT_CONFIG, config_val);
 }
 
-void handle_chip_irq(unsigned long type, unsigned long vector,
+asmlinkage void do_entInt(unsigned long type, unsigned long vector,
 			  unsigned long irq_arg, struct pt_regs *regs)
 {
 	struct pt_regs *old_regs;
@@ -738,6 +738,7 @@ void handle_chip_irq(unsigned long type, unsigned long vector,
 	}
 	pr_crit("PC = %016lx PS = %04lx\n", regs->pc, regs->ps);
 }
+EXPORT_SYMBOL(do_entInt);
 
 /*
  * Early fix up the chip3 Root Complex settings

arch/sw_64/include/asm/irq_impl.h

@@ -41,10 +41,8 @@ enum sw64_irq_type {
 extern struct irqaction timer_irqaction;
 extern void init_rtc_irq(irq_handler_t handler);
 extern void handle_irq(int irq);
-extern void handle_ipi(struct pt_regs *);
+extern void handle_ipi(struct pt_regs *regs);
 extern void __init sw64_init_irq(void);
 extern irqreturn_t timer_interrupt(int irq, void *dev);
-extern void handle_chip_irq(unsigned long type, unsigned long vector,
-			    unsigned long irq_arg, struct pt_regs *regs);
 
 #endif

arch/sw_64/kernel/irq_sw64.c

@@ -9,15 +9,6 @@
 #include <asm/dma.h>
 #include <asm/irq_impl.h>
 
-asmlinkage void
-do_entInt(unsigned long type, unsigned long vector,
-	  unsigned long irq_arg, struct pt_regs *regs)
-{
-	local_irq_disable();
-	handle_chip_irq(type, vector, irq_arg, regs);
-}
-EXPORT_SYMBOL(do_entInt);
-
 void __init
 init_IRQ(void)
 {