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From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Dan Carpenter <dan.carpenter@oracle.co>,
	linux-sparse@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: detecting misuse of of_get_property
Date: Tue, 29 Oct 2019 12:47:50 +0100	[thread overview]
Message-ID: <20191029114750.a7inago2vd2o4lzl@ltop.local> (raw)
In-Reply-To: <20191029104917.GI1944@kadam>

On Tue, Oct 29, 2019 at 01:50:58PM +0300, Dan Carpenter wrote:
> +static void match_of_get_property(const char *fn, struct expression *expr, void *unused)
> +{
> +	struct expression *left = expr->left;
> +	struct symbol *type;
> +
> +	type = get_type(left);
> +	if (!type || type->type != SYM_PTR)
> +		return;
> +	type = get_base_type(type);
> +	if (type_bits(type) == 8)
> +		return;
> +	if (type->type == SYM_RESTRICT)
> +		return;

Wouldn't this also silently accept assignments to any bitwise
type: __le32, __be16, ... ? 

-- Luc

  parent reply	other threads:[~2019-10-29 11:47 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-28 19:32 detecting misuse of of_get_property Rasmus Villemoes
2019-10-28 22:49 ` Luc Van Oostenryck
2019-10-29  7:24   ` Rasmus Villemoes
2019-10-29 10:50 ` Dan Carpenter
2019-10-29 11:43   ` Rasmus Villemoes
2019-10-29 12:57     ` Dan Carpenter
2019-10-29 11:47   ` Luc Van Oostenryck [this message]
2019-10-29 12:55     ` Dan Carpenter
2019-10-29 13:37       ` Luc Van Oostenryck

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