linux-kernel - Re: [PATCH] fix "passing argument # of '__memcpy' discards qualifiers from pointer target type" warnings

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Date:	Wed, 24 Oct 2007 17:25:30 +0200
From:	Bodo Eggert <7eggert@....de>
To:	Miguel Botón <mboton.lkml@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fix "passing argument # of '__memcpy' discards qualifiers from pointer target type" warnings

Miguel Botón <mboton.lkml@...il.com> wrote:

> This patch fixes the warnings "passing argument 1 of '__memcpy' discards
> qualifiers from pointer target type" and "passing argument 2 of '__memcpy'
> discards qualifiers from pointer target type" when compiling some files.
> 
> I don't really know if this is the best way but at least I don't get more
> warnings.

> +++ linux-2.6.24-rc1/fs/cifs/dir.c    2007-10-24 15:49:44.000000000 +0200
> @@ -585,6 +585,7 @@

> +     unsigned char *dstname = (unsigned char *)a->name;

> @@ -593,7 +594,7 @@

> -             memcpy((unsigned char *)a->name, b->name, a->len);
> +             memcpy(dstname, b->name, a->len);

This looks like a compiler bug. Get the gcc people to fix it.
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