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[v3,04/43] fbdev/deferred-io: Test screen_buffer for vmalloc'ed memory

Message ID 20240419083331.7761-5-tzimmermann@suse.de (mailing list archive)
State Handled Elsewhere
Headers show
Series drm: Provide fbdev emulation per memory manager | expand

Commit Message

Thomas Zimmermann April 19, 2024, 8:28 a.m. UTC 
Framebuffers in virtual memory are available via screen_buffer. Use
it instead of screen_base and avoid the type casting.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
---
 drivers/video/fbdev/core/fb_defio.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
index f23b1cbe67192..b38f775cd39dd 100644
--- a/drivers/video/fbdev/core/fb_defio.c
+++ b/drivers/video/fbdev/core/fb_defio.c
@@ -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);