linux-kernel - Re: [PATCH] scsi: hisi_sas: redefine hisi_sas_phy.phy

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Date:   Mon, 26 Jun 2017 13:41:33 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     John Garry <john.garry@...wei.com>
Cc:     <jejb@...ux.vnet.ibm.com>, <martin.petersen@...cle.com>,
        <linuxarm@...wei.com>, <linux-scsi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <dan.carpenter@...cle.com>
Subject: Re: [PATCH] scsi: hisi_sas: redefine hisi_sas_phy.phy_type as u32


John,

> Element phy_type is a bitmask and it only ever has 2 bits possibly
> set, and it is overkill to define as a u64, so redefine as a u32.
>
> This change resolves static code check complaint that "phy->phy_type
> &= ~PORT_TYPE_SAS;" would unintentionally clear the high 32 bits as
> well.
>
> Structure hisi_sas_phy is also reordered to ensure packing efficiency.

Applied to 4.13/scsi-queue, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering