add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/sparc/kernel/central.c
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@@ -55,7 +55,7 @@
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 			else
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 				return 5;
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 		}
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-		/* Fallthrough */
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+		fallthrough;
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 	default:
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 		return 4;
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 	}
..
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@@ -168,7 +168,7 @@
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 		goto out;
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 	}
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-	if (!strcmp(op->dev.of_node->parent->name, "central"))
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+	if (of_node_name_eq(op->dev.of_node->parent, "central"))
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 		p->central = true;
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 	p->pregs = of_ioremap(&op->resource[0], 0,