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Commit de6d2d1b authored by Gavin Shan's avatar Gavin Shan Committed by Michael Ellerman
Browse files

powerpc/kernel: Use of_property_read_u32() in rtas_initialize() 



This uses of_property_read_u32() in rtas_initialize() so that we
needn't explicitly care the CPU's endian.

Signed-off-by: default avatarGavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent dbecd509

arch/powerpc/kernel/rtas.c

+9 −11
Original line number Diff line number Diff line
@@ -1145,7 +1145,8 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs) 
void __init rtas_initialize(void)

{

	unsigned long rtas_region = RTAS_INSTANTIATE_MAX;

	const __be32 *basep, *entryp, *sizep;

	u32 base, size, entry;

	int no_base, no_size, no_entry;



	/* Get RTAS dev node and fill up our "rtas" structure with infos

	 * about it.
@@ -1154,20 +1155,17 @@ void __init rtas_initialize(void) 
	if (!rtas.dev)

		return;



	basep = of_get_property(rtas.dev, "linux,rtas-base", NULL);

	sizep = of_get_property(rtas.dev, "rtas-size", NULL);

	if (basep == NULL || sizep == NULL) {

	no_base = of_property_read_u32(rtas.dev, "linux,rtas-base", &base);

	no_size = of_property_read_u32(rtas.dev, "rtas-size", &size);

	if (no_base || no_size) {

		rtas.dev = NULL;

		return;

	}



	rtas.base = __be32_to_cpu(*basep);

	rtas.size = __be32_to_cpu(*sizep);

	entryp = of_get_property(rtas.dev, "linux,rtas-entry", NULL);

	if (entryp == NULL) /* Ugh */

		rtas.entry = rtas.base;

	else

		rtas.entry = __be32_to_cpu(*entryp);

	rtas.base = base;

	rtas.size = size;

	no_entry = of_property_read_u32(rtas.dev, "linux,rtas-entry", &entry);

	rtas.entry = no_entry ? rtas.base : entry;



	/* If RTAS was found, allocate the RMO buffer for it and look for

	 * the stop-self token if any