Re: [PATCH] Trivial patch to remove list member from struct tcx_par in drivers/video/tcx.c

[Geert Uytterhoeven <geert@linux-m68k.org>]

On Mon, 10 Oct 2005, Hareesh Nagarajan wrote:
> This patch removes the list_head member 'list' from struct tcx_par in the file
> drivers/video/tcx.c among other trivial cleanups. The member 'list' is never
> used. It turns out that other frame buffer code like cg14.c, leo.c, bw2.c,
> etc. (in drivers/video) seem to have the same extra list_head member in their
> respective *_par structures.

What about the other changes you made (cfr. below)?

> The patch applies to the 2.6.13.4 kernel sources.

Please send patches inlined in the future. If you send them as an attachment,
we cannot easily comment on them.

> (AFAICT, I am not missing anything; If I am, I'm sorry for wasting your time.)

> --- linux-2.6.13.4/drivers/video/tcx.c	2005-10-10 13:54:29.000000000 -0500
> +++ linux-2.6.13.4-edit/drivers/video/tcx.c	2005-10-10 21:05:22.110156000 -0500
> @@ -174,13 +173,13 @@
>  			 unsigned red, unsigned green, unsigned blue,
>  			 unsigned transp, struct fb_info *info)
>  {
> +	if (regno >= 256)
> +		return 1;
> +
>  	struct tcx_par *par = (struct tcx_par *) info->par;
>  	struct bt_regs __iomem *bt = par->bt;
>  	unsigned long flags;
>  
> -	if (regno >= 256)
> -		return 1;
> -
>  	red >>= 8;
>  	green >>= 8;
>  	blue >>= 8;

Please don't change this, or it won't compile anymore with gcc 2.95.

> @@ -442,7 +441,7 @@
>  
>  	tcx_reset(&all->info);
>  
> -	tcx_blank(0, &all->info);
> +	tcx_blank(FB_BLANK_UNBLANK, &all->info);
>  
>  	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
>  		printk(KERN_ERR "tcx: Could not allocate color map.\n");

What about this change?

> @@ -490,8 +489,7 @@
>  	struct list_head *pos, *tmp;
>  
>  	list_for_each_safe(pos, tmp, &tcx_list) {
> -		struct all_info *all = list_entry(pos, typeof(*all), list);
> -
> +		struct all_info *all = list_entry(pos, struct all_info, list);
>  		unregister_framebuffer(&all->info);
>  		fb_dealloc_cmap(&all->info.cmap);
>  		kfree(all);

And this one?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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