add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/mips/sni/pcit.c
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@@ -244,7 +244,9 @@
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 	*(volatile u32 *)SNI_PCIT_INT_REG = 0;
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 	sni_hwint = sni_pcit_hwint;
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 	change_c0_status(ST0_IM, IE_IRQ1);
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-	setup_irq(SNI_PCIT_INT_START + 6, &sni_isa_irq);
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+	if (request_irq(SNI_PCIT_INT_START + 6, sni_isa_irq_handler, 0, "ISA",
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+			NULL))
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+		pr_err("Failed to register ISA interrupt\n");
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 }
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 void __init sni_pcit_cplus_irq_init(void)
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@@ -257,7 +259,9 @@
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 	*(volatile u32 *)SNI_PCIT_INT_REG = 0x40000000;
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 	sni_hwint = sni_pcit_hwint_cplus;
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 	change_c0_status(ST0_IM, IE_IRQ0);
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-	setup_irq(MIPS_CPU_IRQ_BASE + 3, &sni_isa_irq);
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+	if (request_irq(MIPS_CPU_IRQ_BASE + 3, sni_isa_irq_handler, 0, "ISA",
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+			NULL))
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+		pr_err("Failed to register ISA interrupt\n");
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 }
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 void __init sni_pcit_init(void)