arch, drivers: replace for_each_membock() with for_each_mem_range()

There are several occurrences of the following pattern:

	for_each_memblock(memory, reg) {
		start = __pfn_to_phys(memblock_region_memory_base_pfn(reg);
		end = __pfn_to_phys(memblock_region_memory_end_pfn(reg));

		/* do something with start and end */
	}

Using for_each_mem_range() iterator is more appropriate in such cases and
allows simpler and cleaner code.

[[email protected]: fix arch/arm/mm/pmsa-v7.c build]
[[email protected]: mips: fix cavium-octeon build caused by memblock refactoring]
  Link: http://lkml.kernel.org/r/[email protected]

Signed-off-by: Mike Rapoport <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Baoquan He <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Daniel Axtens <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Emil Renner Berthing <[email protected]>
Cc: Hari Bathini <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Marek Szyprowski <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Russell King <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>

1 files changed, 15 insertions, 8 deletions

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 115c92839af5..d44e522c569b 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -484,8 +484,9 @@ static struct resource __initdata *standard_resources[] = {
 static void __init setup_resources(void)
 {
 	struct resource *res, *std_res, *sub_res;
-	struct memblock_region *reg;
+	phys_addr_t start, end;
 	int j;
+	u64 i;
 
 	code_resource.start = (unsigned long) _text;
 	code_resource.end = (unsigned long) _etext - 1;
@@ -494,7 +495,7 @@ static void __init setup_resources(void)
 	bss_resource.start = (unsigned long) __bss_start;
 	bss_resource.end = (unsigned long) __bss_stop - 1;
 
-	for_each_memblock(memory, reg) {
+	for_each_mem_range(i, &start, &end) {
 		res = memblock_alloc(sizeof(*res), 8);
 		if (!res)
 			panic("%s: Failed to allocate %zu bytes align=0x%x\n",
@@ -502,8 +503,13 @@ static void __init setup_resources(void)
 		res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM;
 
 		res->name = "System RAM";
-		res->start = reg->base;
-		res->end = reg->base + reg->size - 1;
+		res->start = start;
+		/*
+		 * In memblock, end points to the first byte after the
+		 * range while in resourses, end points to the last byte in
+		 * the range.
+		 */
+		res->end = end - 1;
 		request_resource(&iomem_resource, res);
 
 		for (j = 0; j < ARRAY_SIZE(standard_resources); j++) {
@@ -819,14 +825,15 @@ static void __init reserve_kernel(void)
 
 static void __init setup_memory(void)
 {
-	struct memblock_region *reg;
+	phys_addr_t start, end;
+	u64 i;
 
 	/*
 	 * Init storage key for present memory
 	 */
-	for_each_memblock(memory, reg) {
-		storage_key_init_range(reg->base, reg->base + reg->size);
-	}
+	for_each_mem_range(i, &start, &end)
+		storage_key_init_range(start, end);
+
 	psw_set_key(PAGE_DEFAULT_KEY);
 
 	/* Only cosmetics */