From: Yaowei Bai <baiyaowei@xxxxxxxxxxxxxxxxxxxx> Subject: kernel/resource: iomem_is_exclusive can be boolean Make iomem_is_exclusive return bool due to this particular function only using either one or zero as its return value. No functional change. Link: http://lkml.kernel.org/r/1513266622-15860-5-git-send-email-baiyaowei@xxxxxxxxxxxxxxxxxxxx Signed-off-by: Yaowei Bai <baiyaowei@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/ioport.h | 2 +- kernel/resource.c | 10 +++++----- 2 files changed, 6 insertions(+), 6 deletions(-) diff -puN include/linux/ioport.h~kernel-resource-iomem_is_exclusive-can-be-boolean include/linux/ioport.h --- a/include/linux/ioport.h~kernel-resource-iomem_is_exclusive-can-be-boolean +++ a/include/linux/ioport.h @@ -265,7 +265,7 @@ extern struct resource * __devm_request_ extern void __devm_release_region(struct device *dev, struct resource *parent, resource_size_t start, resource_size_t n); extern int iomem_map_sanity_check(resource_size_t addr, unsigned long size); -extern int iomem_is_exclusive(u64 addr); +extern bool iomem_is_exclusive(u64 addr); extern int walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages, diff -puN kernel/resource.c~kernel-resource-iomem_is_exclusive-can-be-boolean kernel/resource.c --- a/kernel/resource.c~kernel-resource-iomem_is_exclusive-can-be-boolean +++ a/kernel/resource.c @@ -1563,17 +1563,17 @@ static int strict_iomem_checks; /* * check if an address is reserved in the iomem resource tree - * returns 1 if reserved, 0 if not reserved. + * returns true if reserved, false if not reserved. */ -int iomem_is_exclusive(u64 addr) +bool iomem_is_exclusive(u64 addr) { struct resource *p = &iomem_resource; - int err = 0; + bool err = false; loff_t l; int size = PAGE_SIZE; if (!strict_iomem_checks) - return 0; + return false; addr = addr & PAGE_MASK; @@ -1596,7 +1596,7 @@ int iomem_is_exclusive(u64 addr) continue; if (IS_ENABLED(CONFIG_IO_STRICT_DEVMEM) || p->flags & IORESOURCE_EXCLUSIVE) { - err = 1; + err = true; break; } } _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
