fbdev: kill sparse warning in deferred IO
Kill the following in fb_defio.c:
drivers/video/fb_defio.c:40:43: warning: incorrect type in argument 1 (different address spaces)
drivers/video/fb_defio.c:40:43: expected void *addr
drivers/video/fb_defio.c:40:43: got char [noderef] *screen_base<asn:2>
The framebuffer memory of these types of devices are allocated from system
RAM.
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/fb_defio.c b/drivers/video/fb_defio.c
index f963f5f..1a8643f 100644
--- a/drivers/video/fb_defio.c
+++ b/drivers/video/fb_defio.c
@@ -32,12 +32,14 @@
unsigned long offset;
struct page *page;
struct fb_info *info = vma->vm_private_data;
+ /* info->screen_base is in System RAM */
+ void *screen_base = (void __force *) info->screen_base;
offset = (vaddr - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT);
if (offset >= info->fix.smem_len)
return NOPAGE_SIGBUS;
- page = vmalloc_to_page(info->screen_base + offset);
+ page = vmalloc_to_page(screen_base + offset);
if (!page)
return NOPAGE_OOM;