[PATCH v4 4/8] [IA64] Change xlate_dev_{kmem,mem}_ptr() prototypes
From: Thierry Reding <hidden>
Date: 2014-08-13 10:29:18
Also in:
linux-arch, linux-s390, linux-serial, lkml, sparclinux
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Thierry Reding <redacted> xlate_dev_mem_ptr() is used to convert a physical address to an uncached kernel virtual address mapping, so make it use phys_addr_t as type for the physical address and return void * for the kernel virtual address. xlate_dev_kmem_ptr() converts a cached kernel virtual address mapping to an uncached kernel virtual address mapping, so make it use void * for both the input parameter and return value. Signed-off-by: Thierry Reding <redacted> --- Changes in v4: - new patch arch/ia64/include/asm/uaccess.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 449c8c0fa2bd..103bedc59644 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h@@ -365,15 +365,15 @@ ia64_done_with_exception (struct pt_regs *regs) } #define ARCH_HAS_TRANSLATE_MEM_PTR 1 -static __inline__ char * -xlate_dev_mem_ptr (unsigned long p) +static __inline__ void * +xlate_dev_mem_ptr(phys_addr_t p) { struct page *page; - char * ptr; + void *ptr; page = pfn_to_page(p >> PAGE_SHIFT); if (PageUncached(page)) - ptr = (char *)p + __IA64_UNCACHED_OFFSET; + ptr = (void *)p + __IA64_UNCACHED_OFFSET; else ptr = __va(p);
@@ -383,15 +383,15 @@ xlate_dev_mem_ptr (unsigned long p) /* * Convert a virtual cached kernel memory pointer to an uncached pointer */ -static __inline__ char * -xlate_dev_kmem_ptr (char * p) +static __inline__ void * +xlate_dev_kmem_ptr(void *p) { struct page *page; - char * ptr; + void *ptr; page = virt_to_page((unsigned long)p); if (PageUncached(page)) - ptr = (char *)__pa(p) + __IA64_UNCACHED_OFFSET; + ptr = (void *)__pa(p) + __IA64_UNCACHED_OFFSET; else ptr = p;
--
2.0.4