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2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/arch/mips/fw/arc/identify.c
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@@ -32,10 +32,6 @@
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 		.liname		= "SGI Indy",
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 		.flags		= PROM_FLAG_ARCS,
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 	}, {
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-		.arcname	= "SGI-IP27",
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-		.liname		= "SGI Origin",
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-		.flags		= PROM_FLAG_ARCS,
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-	}, {
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 		.arcname	= "SGI-IP28",
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 		.liname		= "SGI IP28",
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 		.flags		= PROM_FLAG_ARCS,
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@@ -87,6 +83,11 @@
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 	return system_type;
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 }
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+static pcomponent * __init ArcGetChild(pcomponent *Current)
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+{
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+	return (pcomponent *) ARC_CALL1(child_component, Current);
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+}
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+
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 void __init prom_identify_arch(void)
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 {
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 	pcomponent *p;
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@@ -98,13 +99,7 @@
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 	 */
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 	p = ArcGetChild(PROM_NULL_COMPONENT);
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 	if (p == NULL) {
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-#ifdef CONFIG_SGI_IP27
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-		/* IP27 PROM misbehaves, seems to not implement ARC
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-		   GetChild().	So we just assume it's an IP27.	 */
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-		iname = "SGI-IP27";
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-#else
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 		iname = "Unknown";
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-#endif
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 	} else
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 		iname = (char *) (long) p->iname;
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