linux-kernel - Re: [PATCH v4 1/1] usb: ulpi: ulpi_init should be executed in subsys

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Message-ID: <20150527023702.GA7038@kroah.com>
Date:	Tue, 26 May 2015 19:37:02 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Lu Baolu <baolu.lu@...ux.intel.com>
Cc:	Heikki Krogerus <heikki.krogerus@...ux.intel.com>, balbi@...com,
	David Cohen <david.a.cohen@...ux.intel.com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	qiuxu.zhuo@...el.com
Subject: Re: [PATCH v4 1/1] usb: ulpi: ulpi_init should be executed in
 subsys_initcall

On Wed, May 27, 2015 at 09:45:37AM +0800, Lu Baolu wrote:
> Phy drivers and the ulpi interface providers depend on the
> registration of the ulpi bus.  Ulpi registers the bus in
> module_init(). This could cause unnecessary probe delays.

What do you mean by "probe delays"?

> 
> Reported-by: Zhuo Qiuxu <qiuxu.zhuo@...el.com>
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> ---
>  drivers/usb/common/ulpi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
> index 0e6f968..01c0c04 100644
> --- a/drivers/usb/common/ulpi.c
> +++ b/drivers/usb/common/ulpi.c
> @@ -242,7 +242,7 @@ static int __init ulpi_init(void)
>  {
>  	return bus_register(&ulpi_bus);
>  }
> -module_init(ulpi_init);
> +subsys_initcall(ulpi_init);

Hasn't this already been rejected?

confused,

greg k-h
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