From: Jeremy Fitzhardinge <jeremy@goop.org>
To: "Robert P. J. Day" <rpjday@mindspring.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
bbpetkov@yahoo.de, linux-kernel@vger.kernel.org, muli@il.ibm.com,
satyam@infradead.org, amitkale@netxen.com,
achim_leubner@adaptec.com
Subject: Re: [PATCH 1/1] unify DMA_..BIT_MASK definitions: v3.1
Date: Fri, 05 Oct 2007 14:23:41 -0700 [thread overview]
Message-ID: <4706AB5D.4060602@goop.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0710051701530.12079@localhost.localdomain>
Robert P. J. Day wrote:
> or you could take advantage of the macros in kernel.h and write that
> as:
>
> +#define DMA_BIT_MASK(n) (((n) == 64) ? ULLONG_MAX : ((1ULL<<(n))-1))
>
But that's a more indirect way of expressing "I want all 1's".
J
next prev parent reply other threads:[~2007-10-05 21:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-18 19:46 [PATCH 1/1] unify DMA_..BIT_MASK definitions: v3.1 Borislav Petkov
2007-09-19 15:03 ` Satyam Sharma
2007-10-05 19:47 ` Andrew Morton
2007-10-05 20:43 ` Jeremy Fitzhardinge
2007-10-05 21:00 ` Andrew Morton
2007-10-05 21:03 ` Robert P. J. Day
2007-10-05 21:23 ` Jeremy Fitzhardinge [this message]
2007-10-06 7:54 ` Borislav Petkov
2007-10-05 21:24 ` Andreas Schwab
2007-10-05 21:28 ` Jeremy Fitzhardinge
2007-10-05 22:24 ` Andrew Morton
2007-10-05 22:32 ` Jeremy Fitzhardinge
2007-10-06 8:37 ` Borislav Petkov
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