Commit abc79a0e authored by Thomas Zimmermann's avatar Thomas Zimmermann
Browse files

fbdev/deferred-io: Test screen_buffer for vmalloc'ed memory 



Framebuffers in virtual memory are available via screen_buffer. Use
it instead of screen_base and avoid the type casting.

Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-5-tzimmermann@suse.de
parent 28aea43c

drivers/video/fbdev/core/fb_defio.c

+3 −3
Original line number Diff line number Diff line
@@ -25,11 +25,11 @@ 


static struct page *fb_deferred_io_page(struct fb_info *info, unsigned long offs)

{

	void *screen_base = (void __force *) info->screen_base;

	const void *screen_buffer = info->screen_buffer;

	struct page *page;



	if (is_vmalloc_addr(screen_base + offs))

		page = vmalloc_to_page(screen_base + offs);

	if (is_vmalloc_addr(screen_buffer + offs))

		page = vmalloc_to_page(screen_buffer + offs);

	else

		page = pfn_to_page((info->fix.smem_start + offs) >> PAGE_SHIFT);