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Commit d60d2d8a authored by Antonino A. Daplas's avatar Antonino A. Daplas Committed by Linus Torvalds
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vga16fb: restrict to blit rectangles with widths of multiples of 8 pixels 



Advertise that vga16fb can only handle widths that are 8-pixel-multiple only
(software limitation). To ensure that a legal font is available, SELECT an
8x16 font in Kconfig.

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 2d2699d9

drivers/video/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -519,6 +519,7 @@ config FB_VGA16 
	select FB_CFB_COPYAREA

	select FB_CFB_IMAGEBLIT

	select VGASTATE

	select FONT_8x16 if FRAMEBUFFER_CONSOLE

	help

	  This is the frame buffer device driver for VGA 16 color graphic

	  cards. Say Y if you have such a card.

drivers/video/vga16fb.c

+2 −0
Original line number Diff line number Diff line
@@ -1378,6 +1378,8 @@ static int __init vga16fb_probe(struct platform_device *dev) 
	info->fbops = &vga16fb_ops;

	info->var = vga16fb_defined;

	info->fix = vga16fb_fix;

	/* supports 8-pixel wide blit rectangles only */

	info->pixmap.blit_x = 1 << (8 - 1);

	info->flags = FBINFO_FLAG_DEFAULT |

		FBINFO_HWACCEL_YPAN;