Re: [PATCH] fbcon: break earlier in search_fb_in_map and search_for_mapped_con

From: Andy Shevchenko
Date: Sun Sep 29 2024 - 15:45:42 EST


Thu, Sep 26, 2024 at 07:59:11PM +0800, Qianqiang Liu kirjoitti:
> Break the for loop immediately upon finding the target, making the
> process more efficient.

You may make it even more effecient (in terms of code readability as I believe
compiler optimizes this anyway to the same):

> int i, retval = 0;
>
> for (i = first_fb_vc; i <= last_fb_vc; i++) {
> - if (con2fb_map[i] == idx)
> + if (con2fb_map[i] == idx) {
> retval = 1;
> + break;
> + }

return 1;

> }
> return retval;

return 0;

> }

...

> int i, retval = 0;
>
> for (i = first_fb_vc; i <= last_fb_vc; i++) {
> - if (con2fb_map[i] != -1)
> + if (con2fb_map[i] != -1) {
> retval = 1;
> + break;
> + }
> }
> return retval;

Ditto.

...

Since it's applied, you can consider a followup.

--
With Best Regards,
Andy Shevchenko