public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: David Cohen <david.a.cohen@linux.intel.com>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 1/1] usb: ulpi: ulpi_init should be executed in subsys_initcall
Date: Fri, 22 May 2015 09:08:45 -0700	[thread overview]
Message-ID: <20150522160845.GA31627@psi-dev26.jf.intel.com> (raw)
In-Reply-To: <1432294155-18039-1-git-send-email-baolu.lu@linux.intel.com>

Hi,

On Fri, May 22, 2015 at 07:29:15PM +0800, Lu Baolu wrote:
> Phy drivers and the ulpi interface providers depend on the
> registeration of the ulpi bus.  Ulpi registers the bus in
> module_init(). This could result in a load order issue, i.e.

It's still not an issue :(
I'd say "unnecessary probe delays".

But of cource it's Felipe's call :) Description looks better now.

BR, David

> ulpi phy drivers or the ulpi interface providers loading
> before the bus registeration.
> 
> This patch fixes this load order issue by putting ulpi_init
> in subsys_initcall().
> 
> Reported-by: Zhuo Qiuxu <qiuxu.zhuo@intel.com>
> Signed-off-by: Lu Baolu <baolu.lu@linux.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);
>  
>  static void __exit ulpi_exit(void)
>  {
> -- 
> 2.1.4
> 

  reply	other threads:[~2015-05-22 16:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-22 11:29 [PATCH v3 1/1] usb: ulpi: ulpi_init should be executed in subsys_initcall Lu Baolu
2015-05-22 16:08 ` David Cohen [this message]
2015-05-25  6:24   ` Lu, Baolu
2015-05-26 14:50     ` Felipe Balbi
2015-05-27  1:33       ` Lu, Baolu
2015-05-25 12:09   ` Heikki Krogerus

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20150522160845.GA31627@psi-dev26.jf.intel.com \
    --to=david.a.cohen@linux.intel.com \
    --cc=baolu.lu@linux.intel.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=heikki.krogerus@linux.intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox