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Commit 9981293f authored by Mark Rutland's avatar Mark Rutland Committed by Will Deacon
Browse files

arm64: make dt_scan_depth1_nodes more readable 



Improve the readability of dt_scan_depth1_nodes by removing the nested
conditionals.

Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarStefano Stabellini <sstabellini@kernel.org>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent 2366c7fd

arch/arm64/kernel/acpi.c

+16 −9
Original line number Diff line number Diff line
@@ -66,17 +66,24 @@ static int __init dt_scan_depth1_nodes(unsigned long node, 
				       void *data)

{

	/*

	 * Return 1 as soon as we encounter a node at depth 1 that is

	 * not the /chosen node, or /hypervisor node with compatible

	 * string "xen,xen".

	 * Ignore anything not directly under the root node; we'll

	 * catch its parent instead.

	 */

	if (depth == 1 && (strcmp(uname, "chosen") != 0)) {

		if (strcmp(uname, "hypervisor") != 0 ||

		    !of_flat_dt_is_compatible(node, "xen,xen"))

			return 1;

	}

	if (depth != 1)

		return 0;



	if (strcmp(uname, "chosen") == 0)

		return 0;



	if (strcmp(uname, "hypervisor") == 0 &&

	    of_flat_dt_is_compatible(node, "xen,xen"))

		return 0;



	/*

	 * This node at depth 1 is neither a chosen node nor a xen node,

	 * which we do not expect.

	 */

	return 1;

}



/*