Messages in this thread | | | Date | Mon, 17 Aug 2009 10:00:51 +0200 | From | Jiri Slaby <> | Subject | Re: [PATCH 1/1] VIDEO: console, use DIV_ROUND_UP |
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On 08/17/2009 10:00 AM, Sergey Senozhatsky wrote: > So... In general, ((vc->vc_font.width + 7) >> 3) == DIV_ROUND_UP(vc->vc_font.width, 8) - 1;
?
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
DIV_ROUND_UP(vc->vc_font.width, 8) expands to: (((vc->vc_font.width) + (8) - 1) / (8)) which is pretty printed: (vc->vc_font.width + 7) / 8 and that's equivalent to: (vc->vc_font.width + 7) >> 3
Correct?
> Are you sure we really can use DIV_ROUND_UP?
Yeah, pretty sure.
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