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2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/sparc/kernel/cpumap.c
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@@ -50,7 +50,7 @@
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 	/* Offsets into nodes[] for each level of the tree */
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 	struct cpuinfo_level level[CPUINFO_LVL_MAX];
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-	struct cpuinfo_node  nodes[0];
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+	struct cpuinfo_node  nodes[];
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 };
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@@ -194,8 +194,7 @@
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 	n = enumerate_cpuinfo_nodes(tmp_level);
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-	new_tree = kzalloc(sizeof(struct cpuinfo_tree) +
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-	                   (sizeof(struct cpuinfo_node) * n), GFP_ATOMIC);
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+	new_tree = kzalloc(struct_size(new_tree, nodes, n), GFP_ATOMIC);
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 	if (!new_tree)
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 		return NULL;
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