Commit 4c235cb9 authored Jan 13, 2014 by Ben Peddell Committed by Russell King Jan 28, 2014

ARM: 7941/2: Fix incorrect FDT initrd parameter override



Commit 65939301 (arm: set initrd_start/initrd_end for fdt scan)
caused the FDT initrd_start and initrd_end to override the
phys_initrd_start and phys_initrd_size set by the initrd= kernel
parameter.  With this patch initrd_start and initrd_end will be
overridden if phys_initrd_start and phys_initrd_size are set by the
kernel initrd= parameter.

Fixes: 65939301 (arm: set initrd_start/initrd_end for fdt scan)

Signed-off-by: Ben Peddell <klightspeed@killerwolves.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 2ab4e8c0

arch/arm/mm/init.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -345,10 +345,11 @@ void __init arm_memblock_init(struct meminfo *mi,
		#endif
		#ifdef CONFIG_BLK_DEV_INITRD
		/* FDT scan will populate initrd_start */
		if (initrd_start) {
		if (initrd_start && !phys_initrd_size) {
		phys_initrd_start = __virt_to_phys(initrd_start);
		phys_initrd_size = initrd_end - initrd_start;
		}
		initrd_start = initrd_end = 0;
		if (phys_initrd_size &&
		!memblock_is_region_memory(phys_initrd_start, phys_initrd_size)) {
		pr_err("INITRD: 0x%08llx+0x%08lx is not a memory region - disabling initrd\n",

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