linux-kernel - Interpretation of sparse warning

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Message-ID: <46EAE885.3080106@lwfinger.net>
Date:	Fri, 14 Sep 2007 15:01:09 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: Interpretation of sparse warning

The code sequence

        u32 macstat;
.....
        macstat = le32_to_cpu(rxhdr->mac_status);

generates the following sparse warnings

drivers/net/wireless/b43legacy/xmit.c:446:12: warning: cast to restricted type
drivers/net/wireless/b43legacy/xmit.c:446:12: warning: cast from restricted type

(#446 is the macstat = ..... line)

My version of sparse is from the git tree and was downloaded today.

I think the code sequence is correct. What, if anything, should I do to eliminate the warning?

Thanks,

Larry


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