From: Matthew Wilcox <matthew@wil.cx>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jeremy Higdon <jeremy@sgi.com>,
Emoore@lsil.com, linux-scsi@vger.kernel.org
Subject: Re: [RFC PATCH 2.6.9-rc2] add ability to set device queue depth to mptfusion
Date: Tue, 28 Sep 2004 12:43:24 +0100 [thread overview]
Message-ID: <20040928114324.GT16153@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <20040928114814.A794@infradead.org>
On Tue, Sep 28, 2004 at 11:48:14AM +0100, Christoph Hellwig wrote:
> > + else if (((pTarget->inq_data[0] & 0x1f) == 0x00)
> > + && (pTarget->minSyncFactor <= MPT_ULTRA160 ))
>
>
> else if (!(pTarget->inq_data[0] & 0x1f) &&
> (pTarget->minSyncFactor <= MPT_ULTRA160)
I'm not sure about converting
if ((pTarget->inq_data[0] & 0x1f) == 0x00)
to
if (!(pTarget->inq_data[0] & 0x1f))
It really depends on the semantics -- in this case I think it's "this 5
bit field has the value 0", rather than "this field is not set". It's the
same reason I hate people using if (!strcmp()) -- it's not that strcmp()
failed, it's that it returned 0.
--
"Next the statesmen will invent cheap lies, putting the blame upon
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince
himself that the war is just, and will thank God for the better sleep
he enjoys after this process of grotesque self-deception." -- Mark Twain
next prev parent reply other threads:[~2004-09-28 11:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-28 7:58 [RFC PATCH 2.6.9-rc2] add ability to set device queue depth to mptfusion Jeremy Higdon
2004-09-28 10:48 ` Christoph Hellwig
2004-09-28 11:43 ` Matthew Wilcox [this message]
2004-09-28 23:47 ` Jeremy Higdon
2004-09-29 0:14 ` Jeremy Higdon
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