linux-kernel - Re: [PATCH v4 2/3] ahci: Store irq number in struct ahci_host

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Message-ID: <20150603053905.GC20091@mtj.duckdns.org>
Date:	Wed, 3 Jun 2015 14:39:05 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Robert Richter <rric@...nel.org>
Cc:	Hans de Goede <hdegoede@...hat.com>,
	Sunil Goutham <sgoutham@...ium.com>,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Robert Richter <rrichter@...ium.com>
Subject: Re: [PATCH v4 2/3] ahci: Store irq number in struct ahci_host_priv

On Sun, May 31, 2015 at 01:55:18PM +0200, Robert Richter wrote:
> From: Robert Richter <rrichter@...ium.com>
> 
> Currently, ahci supports only msi and intx. To also support msix the
> handling of the irq number need to be changed. The irq number for msix
> devices is taken from msi_list instead of pci_dev. Thus, the irq
> number of a device needs to be stored in struct ahci_host_priv now.
> This allows the host controller to be activated in a generic way.
> 
> This change is only intended for ahci drivers. For that reason the irq
> number is stored in struct ahci_host_priv used only by ahci drivers.
> Thus, the ABI changes only for ahci_host_activate(), but existing ata
> drivers (about 50) are unaffected and keep unchanged. All users of
> ahci_host_activate() have been updated.
> 
> While touching drivers/ata/libahci.c, doing a small code cleanup in
> ahci_port_start().
> 
> Signed-off-by: Robert Richter <rrichter@...ium.com>

Applied 1-2 to libata/for-4.2.

Thanks.

-- 
tejun
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