treewide: use PHYS_ADDR_MAX to avoid type casting ULLONG_MAX

With PHYS_ADDR_MAX there is now a type safe variant for all bits set.
Make use of it.

Patch created using a semantic patch as follows:

// <smpl>
@@
typedef phys_addr_t;
@@
-(phys_addr_t)ULLONG_MAX
+PHYS_ADDR_MAX
// </smpl>

Link: http://lkml.kernel.org/r/20180419214204.19322-1-stefan@agner.ch
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>	[arm64]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

6 files changed, 9 insertions, 9 deletions

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 1b18b4722420..325cfb3b858a 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -310,7 +310,7 @@ static void __init arm64_memory_present(void)
 }
 #endif
 
-static phys_addr_t memory_limit = (phys_addr_t)ULLONG_MAX;
+static phys_addr_t memory_limit = PHYS_ADDR_MAX;
 
 /*
  * Limit the memory size that was specified via FDT.
@@ -401,7 +401,7 @@ void __init arm64_memblock_init(void)
 	 * high up in memory, add back the kernel region that must be accessible
 	 * via the linear mapping.
 	 */
-	if (memory_limit != (phys_addr_t)ULLONG_MAX) {
+	if (memory_limit != PHYS_ADDR_MAX) {
 		memblock_mem_limit_remove_map(memory_limit);
 		memblock_add(__pa_symbol(_text), (u64)(_end - _text));
 	}
@@ -666,7 +666,7 @@ __setup("keepinitrd", keepinitrd_setup);
  */
 static int dump_mem_limit(struct notifier_block *self, unsigned long v, void *p)
 {
-	if (memory_limit != (phys_addr_t)ULLONG_MAX) {
+	if (memory_limit != PHYS_ADDR_MAX) {
 		pr_emerg("Memory Limit: %llu MB\n", memory_limit >> 20);
 	} else {
 		pr_emerg("Memory Limit: none\n");
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 563188ac6fa2..2c96c0c68116 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -93,7 +93,7 @@ void __init add_memory_region(phys_addr_t start, phys_addr_t size, long type)
 	 * If the region reaches the top of the physical address space, adjust
 	 * the size slightly so that (start + size) doesn't overflow
 	 */
-	if (start + size - 1 == (phys_addr_t)ULLONG_MAX)
+	if (start + size - 1 == PHYS_ADDR_MAX)
 		--size;
 
 	/* Sanity check */
@@ -376,7 +376,7 @@ static void __init bootmem_init(void)
 	unsigned long reserved_end;
 	unsigned long mapstart = ~0UL;
 	unsigned long bootmap_size;
-	phys_addr_t ramstart = (phys_addr_t)ULLONG_MAX;
+	phys_addr_t ramstart = PHYS_ADDR_MAX;
 	bool bootmap_valid = false;
 	int i;
 
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 8cecda4bd66a..5c8530d0c611 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -215,7 +215,7 @@ void __init mem_topology_setup(void)
 	/* Place all memblock_regions in the same node and merge contiguous
 	 * memblock_regions
 	 */
-	memblock_set_node(0, (phys_addr_t)ULLONG_MAX, &memblock.memory, 0);
+	memblock_set_node(0, PHYS_ADDR_MAX, &memblock.memory, 0);
 }
 
 void __init initmem_init(void)
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 8aeb1aabe76e..f396048a0d68 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1620,7 +1620,7 @@ static void __init bootmem_init_nonnuma(void)
 	       (top_of_ram - total_ram) >> 20);
 
 	init_node_masks_nonnuma();
-	memblock_set_node(0, (phys_addr_t)ULLONG_MAX, &memblock.memory, 0);
+	memblock_set_node(0, PHYS_ADDR_MAX, &memblock.memory, 0);
 	allocate_node_data(0);
 	node_set_online(0);
 }
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index c893c6a3d707..979e0a02cbe1 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -692,7 +692,7 @@ void __init initmem_init(void)
 	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
 #endif
 
-	memblock_set_node(0, (phys_addr_t)ULLONG_MAX, &memblock.memory, 0);
+	memblock_set_node(0, PHYS_ADDR_MAX, &memblock.memory, 0);
 	sparse_memory_present_with_active_regions(0);
 
 #ifdef CONFIG_FLATMEM
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 17383f9677fa..045f492d5f68 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -742,7 +742,7 @@ kernel_physical_mapping_init(unsigned long paddr_start,
 #ifndef CONFIG_NUMA
 void __init initmem_init(void)
 {
-	memblock_set_node(0, (phys_addr_t)ULLONG_MAX, &memblock.memory, 0);
+	memblock_set_node(0, PHYS_ADDR_MAX, &memblock.memory, 0);
 }
 #endif