Commit 05f96ef1 authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[ARM] Allow gcc to optimise arm_add_memory a little more 



For some reason, gcc was calculating meminfo.bank[meminfo.nr_banks]
repeatedly.  Use a pointer to it instead.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent b7dc96d7

arch/arm/kernel/setup.c

+7 −4
Original line number Original line Diff line number Diff line
@@ -441,16 +441,19 @@ __early_param("initrd=", early_initrd); 




static void __init arm_add_memory(unsigned long start, unsigned long size)

static void __init arm_add_memory(unsigned long start, unsigned long size)

{

{

	struct membank *bank;



	/*

	/*

	 * Ensure that start/size are aligned to a page boundary.

	 * Ensure that start/size are aligned to a page boundary.

	 * Size is appropriately rounded down, start is rounded up.

	 * Size is appropriately rounded down, start is rounded up.

	 */

	 */

	size -= start & ~PAGE_MASK;

	size -= start & ~PAGE_MASK;





	meminfo.bank[meminfo.nr_banks].start = PAGE_ALIGN(start);

	bank = &meminfo.bank[meminfo.nr_banks++];

	meminfo.bank[meminfo.nr_banks].size  = size & PAGE_MASK;



	meminfo.bank[meminfo.nr_banks].node  = PHYS_TO_NID(start);

	bank->start = PAGE_ALIGN(start);

	meminfo.nr_banks += 1;

	bank->size  = size & PAGE_MASK;

	bank->node  = PHYS_TO_NID(start);

}

}





/*

/*