linux-ext4 - Re: [PATCH -V4] ext4: sparse fixes

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Message-ID: <20081121175110.GA12412@infradead.org>
Date:	Fri, 21 Nov 2008 12:51:10 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	cmm@...ibm.com, tytso@....edu, sandeen@...hat.com,
	linux-ext4@...r.kernel.org
Subject: Re: [PATCH -V4] ext4: sparse fixes

On Fri, Nov 21, 2008 at 10:10:36PM +0530, Aneesh Kumar K.V wrote:
>  #define EXT4_HAS_COMPAT_FEATURE(sb,mask)			\
> -	(EXT4_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask))
> +	(__force __u32)!!(EXT4_SB(sb)->s_es->s_feature_compat &	\
> +					cpu_to_le32(mask))

As mentioned before please don't abuse __force here.

	((EXT4_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask)) != 0)

does the right things and is a lote more readable.

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