From: Joerg Roedel <joro@8bytes.org>
To: Varun Sethi <Varun.Sethi@freescale.com>
Cc: alex.williamson@redhat.com, iommu@lists.linux-foundation.org,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] iommu/fsl: Fix PAMU window size check.
Date: Fri, 4 Jul 2014 12:44:30 +0200 [thread overview]
Message-ID: <20140704104430.GD13434@8bytes.org> (raw)
In-Reply-To: <1403618237-26248-2-git-send-email-Varun.Sethi@freescale.com>
On Tue, Jun 24, 2014 at 07:27:15PM +0530, Varun Sethi wrote:
> /* window size is 2^(WSE+1) bytes */
> - return __ffs(addrspace_size) - 1;
> + return fls64(addrspace_size) - 2;
This looks bogus, why do you replace ffs (find-first-bit) by fls
(find-last-bit)?
Joerg
next prev parent reply other threads:[~2014-07-04 10:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 13:57 [PATCH 0/3] iommu/fsl: Fixes for the PAMU driver Varun Sethi
2014-06-24 13:57 ` [PATCH 1/3] iommu/fsl: Fix PAMU window size check Varun Sethi
2014-07-04 10:44 ` Joerg Roedel [this message]
2014-07-04 12:47 ` Varun Sethi
2014-06-24 13:57 ` [PATCH 2/3] iommu/fsl: Fix the device domain attach condition Varun Sethi
2014-07-04 10:54 ` Joerg Roedel
2014-07-04 12:50 ` Varun Sethi
2014-06-24 13:57 ` [PATCH 3/3] iommu/fsl: Fix the error condition during iommu group Varun Sethi
[not found] ` <1403618237-26248-2-git-send-email-Varun.Sethi__13822.953499812$1403630309$gmane$org@freescale.com>
2014-07-02 7:46 ` [PATCH 1/3] iommu/fsl: Fix PAMU window size check Emil Medve
2014-07-02 8:58 ` Varun Sethi
2014-07-07 8:32 ` [PATCH 0/3] iommu/fsl: Fixes for the PAMU driver Joerg Roedel
2014-07-07 8:55 ` Varun Sethi
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