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>

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 1b18b47..325cfb3 100644 (file)
--- 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 563188a..2c96c0c 100644 (file)
--- 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 8cecda4..5c8530d 100644 (file)
--- 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 8aeb1aa..f396048 100644 (file)
--- 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 c893c6a..979e0a0 100644 (file)
--- 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 17383f9..045f492 100644 (file)
--- 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
 

diff --git a/drivers/firmware/efi/arm-init.c b/drivers/firmware/efi/arm-init.c
index 80d1a88..b5214c1 100644 (file)
--- a/drivers/firmware/efi/arm-init.c
+++ b/drivers/firmware/efi/arm-init.c
@@ -193,7 +193,7 @@ static __init void reserve_regions(void)
         * uses its own memory map instead.
         */
        memblock_dump_all();
-       memblock_remove(0, (phys_addr_t)ULLONG_MAX);
+       memblock_remove(0, PHYS_ADDR_MAX);
 
        for_each_efi_memory_desc(md) {
                paddr = md->phys_addr;

diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index 2190deb..2bf8e7c 100644 (file)
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -686,7 +686,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
        struct elf32_hdr *ehdr;
        phys_addr_t mpss_reloc;
        phys_addr_t boot_addr;
-       phys_addr_t min_addr = (phys_addr_t)ULLONG_MAX;
+       phys_addr_t min_addr = PHYS_ADDR_MAX;
        phys_addr_t max_addr = 0;
        bool relocate = false;
        char seg_name[10];

diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c
index 17b314d..dc09d7a 100644 (file)
--- a/drivers/soc/qcom/mdt_loader.c
+++ b/drivers/soc/qcom/mdt_loader.c
@@ -50,7 +50,7 @@ ssize_t qcom_mdt_get_size(const struct firmware *fw)
        const struct elf32_phdr *phdrs;
        const struct elf32_phdr *phdr;
        const struct elf32_hdr *ehdr;
-       phys_addr_t min_addr = (phys_addr_t)ULLONG_MAX;
+       phys_addr_t min_addr = PHYS_ADDR_MAX;
        phys_addr_t max_addr = 0;
        int i;
 
@@ -97,7 +97,7 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw,
        const struct elf32_hdr *ehdr;
        const struct firmware *seg_fw;
        phys_addr_t mem_reloc;
-       phys_addr_t min_addr = (phys_addr_t)ULLONG_MAX;
+       phys_addr_t min_addr = PHYS_ADDR_MAX;
        phys_addr_t max_addr = 0;
        size_t fw_name_len;
        ssize_t offset;