lkml.org 
[lkml]   [2018]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 3/4] auxdisplay: charlcd: fix x/y address commands
On Tue, Feb 27, 2018 at 12:05:10AM +0100, Robert Abel wrote:
> Hi Miguel,
>
> On 26 Feb 2018 17:49, Miguel Ojeda wrote:
> > On Mon, Feb 26, 2018 at 12:54 AM, Robert Abel <rabel@robertabel.eu> wrote:
> >> + /* clamp new x/y coordinates */
> >> + if (tmp_addr.x >= lcd->width)
> >> + tmp_addr.x = lcd->width - 1;
> >
> > tmp_addr.x = min(tmp_addr.x, lcd->width - 1);
>
> Had throught of that, too. However, it introduces a warning about type
> mismatch, because lcd->width is int while tmp_addr.x is unsigned long
> int. I didn't fell like saving a line warranted much bigger changes to
> the lcd struct.

The you can use min_t() :

tmp_addr.x = min_t(unsigned, tmp_addr.x, lcd->width - 1);

Willy

\
 
 \ /
  Last update: 2018-02-27 06:20    [W:0.201 / U:0.304 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site