Re: [PATCH] char: fix sparse shadowed variable warnings incyclades.c

From: Harvey Harrison
Date: Wed Feb 27 2008 - 18:40:19 EST


On Wed, 2008-02-27 at 15:34 -0800, Andrew Morton wrote:
> On Fri, 22 Feb 2008 10:14:15 -0800
> Harvey Harrison <harvey.harrison@xxxxxxxxx> wrote:
>
> Unrelated to your change, but...
>
> We prefer min_t over casts like this (not sure why, but let's be consistent)
>
> The reason for this cast is that all this code is using `int' for the
> transfer count (arguably wrong - should use size_t, but that propagates all
> the way to tty_operations.write) but cyclades has
>
> #define SERIAL_XMIT_SIZE (min(PAGE_SIZE, 4096))
>
> which is unsigned on most architectures.
>
> A possibly-sane fix for all of this is to use min_t in the above then nuke
> the casts.
>

I'll trace this through and get you a patch.

Harvey



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