add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/alpha/kernel/sys_alcor.c
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@@ -23,7 +23,6 @@
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 #include <asm/dma.h>
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 #include <asm/mmu_context.h>
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 #include <asm/irq.h>
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-#include <asm/pgtable.h>
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 #include <asm/core_cia.h>
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 #include <asm/tlbflush.h>
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..
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@@ -133,7 +132,8 @@
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 	init_i8259a_irqs();
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 	common_init_isa_dma();
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-	setup_irq(16+31, &isa_cascade_irqaction);
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+	if (request_irq(16 + 31, no_action, 0, "isa-cascade", NULL))
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+		pr_err("Failed to register isa-cascade interrupt\n");
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 }
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