Commit 98a1153a authored by Antonino A. Daplas's avatar Antonino A. Daplas Committed by Linus Torvalds
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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: default avatarAntonino Daplas <adaplas@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 895bf69b

drivers/video/fb_defio.c

+3 −1
Original line number Diff line number Diff line
@@ -32,12 +32,14 @@ static struct page* fb_deferred_io_nopage(struct vm_area_struct *vma, 
	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;