linux-kernel - Re: [PATCH v6 11/14] msi: platform: make platform_msi_create_device

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Date:   Wed, 4 Jan 2017 16:49:41 +0000
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Hanjun Guo <hanjun.guo@...aro.org>
Cc:     Marc Zyngier <marc.zyngier@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linuxarm@...wei.com,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        Tomasz Nowicki <tn@...ihalf.com>, Ma Jun <majun258@...wei.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Agustin Vega-Frias <agustinv@...eaurora.org>,
        Sinan Kaya <okaya@...eaurora.org>,
        charles.garcia-tobin@....com, huxinwei@...wei.com,
        yimin@...wei.com, Jon Masters <jcm@...hat.com>
Subject: Re: [PATCH v6 11/14] msi: platform: make
 platform_msi_create_device_domain() ACPI aware

On Mon, Jan 02, 2017 at 09:31:42PM +0800, Hanjun Guo wrote:
> With the platform msi domain created for ITS, irqchip such as
> mbi-gen connecting ITS, which needs ctreate its own irqdomain.

This patch touches generic platform-msi code, there is nothing ITS
and mbi-gen specific that has to be known here.

> Fortunately with the platform msi support upstreamed by Marc,
> we just need to add minor code to make it run properly.

Do you really think that anyone reading this log can easily
make use of this statement ?

> platform_msi_create_device_domain() is almost ready for ACPI use
> except of_node_to_fwnode() is for dt only, make it ACPI aware then
> things will work in both DTS and ACPI.

This commit log is unreadable and the readable bits do not contain
information that can be used for the purpose a commit log is made
for.

Please rewrite it in a way that can be used in the future to understand
what this patch does and why you want it in the kernel, thanks.

Lorenzo

> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
> Tested-by: Majun <majun258@...wei.com>
> Tested-by: Xinwei Kong <kong.kongxinwei@...ilicon.com>
> Cc: Marc Zyngier <marc.zyngier@....com>
> Cc: Greg KH <gregkh@...uxfoundation.org>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> ---
>  drivers/base/platform-msi.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
> index be6a599..035ca3b 100644
> --- a/drivers/base/platform-msi.c
> +++ b/drivers/base/platform-msi.c
> @@ -345,8 +345,7 @@ struct irq_domain *
>  
>  	data->host_data = host_data;
>  	domain = irq_domain_create_hierarchy(dev->msi_domain, 0, nvec,
> -					     of_node_to_fwnode(dev->of_node),
> -					     ops, data);
> +					     dev->fwnode, ops, data);
>  	if (!domain)
>  		goto free_priv;
>  
> -- 
> 1.9.1
>