From abc5992b9dd0ba599f7a91d5a0f4569a78ae88ac Mon Sep 17 00:00:00 2001 From: Kefeng Wang Date: Tue, 7 Jun 2022 20:50:23 +0800 Subject: mm: ioremap: Use more sensible name in ioremap_prot() Use more meaningful and sensible naming phys_addr instead addr in ioremap_prot(). Suggested-by: Andrew Morton Reviewed-by: Anshuman Khandual Signed-off-by: Kefeng Wang Reviewed-by: Baoquan He Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20220610092255.32445-1-wangkefeng.wang@huawei.com Signed-off-by: Will Deacon --- mm/ioremap.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'mm/ioremap.c') diff --git a/mm/ioremap.c b/mm/ioremap.c index 5fe598ecd9b7..2d754b48d230 100644 --- a/mm/ioremap.c +++ b/mm/ioremap.c @@ -11,20 +11,21 @@ #include #include -void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot) +void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size, + unsigned long prot) { unsigned long offset, vaddr; phys_addr_t last_addr; struct vm_struct *area; /* Disallow wrap-around or zero size */ - last_addr = addr + size - 1; - if (!size || last_addr < addr) + last_addr = phys_addr + size - 1; + if (!size || last_addr < phys_addr) return NULL; /* Page-align mappings */ - offset = addr & (~PAGE_MASK); - addr -= offset; + offset = phys_addr & (~PAGE_MASK); + phys_addr -= offset; size = PAGE_ALIGN(size + offset); area = get_vm_area_caller(size, VM_IOREMAP, @@ -33,7 +34,8 @@ void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot) return NULL; vaddr = (unsigned long)area->addr; - if (ioremap_page_range(vaddr, vaddr + size, addr, __pgprot(prot))) { + if (ioremap_page_range(vaddr, vaddr + size, phys_addr, + __pgprot(prot))) { free_vm_area(area); return NULL; } -- cgit 1.4.1