linux-kernel - Re: linux-next: build failure after merge of the usb tree

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Message-ID: <CAPcyv4hot6QGUKANfUqqNQk07C+G9gKgW8kgnkT82JMHCgyh1g@mail.gmail.com>
Date:	Thu, 29 May 2014 11:40:09 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	Greg KH <greg@...ah.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the usb tree

On Thu, May 29, 2014 at 11:18 AM, Greg KH <greg@...ah.com> wrote:
> On Thu, May 29, 2014 at 07:01:29PM +1000, Stephen Rothwell wrote:
>> Hi Greg,
>>
>> After merging the usb tree, today's linux-next build (sparc64 defconfig)
>> failed like this:
>>
>> drivers/usb/core/hub.c: In function 'port_event':
>> drivers/usb/core/hub.c:4853:2: error: implicit declaration of function 'hub_handle_remote_wakeup' [-Werror=implicit-function-declaration]
>>
>> Caused by commits af376a461cf0 ("usb: refactor port handling in
>> hub_events()") and 7e73be227b15 ("usb: hub_handle_remote_wakeup()
>> depends on CONFIG_PM_RUNTIME=y") This build has CONFIG_PM not set ...
>>
>> I have added this fix patch for today (there is probably a better way):
>>
>> From: Stephen Rothwell <sfr@...b.auug.org.au>
>> Date: Thu, 29 May 2014 18:55:06 +1000
>> Subject: [PATCH] usb: hub_handle_remote_wakeup() only exists for CONFIG_PM=y
>>
>> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
>> ---
>>  drivers/usb/core/hub.c | 6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
>> index 5672752bfd2c..879b66e13370 100644
>> --- a/drivers/usb/core/hub.c
>> +++ b/drivers/usb/core/hub.c
>> @@ -3977,6 +3977,12 @@ EXPORT_SYMBOL_GPL(usb_disable_ltm);
>>  void usb_enable_ltm(struct usb_device *udev) { }
>>  EXPORT_SYMBOL_GPL(usb_enable_ltm);
>>
>> +static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port,
>> +             u16 portstatus, u16 portchange)
>> +{
>> +     return 0;
>> +}
>> +
>>  #endif       /* CONFIG_PM */
>>
>>
>
> Dan, any objection to me taking this patch?
>
> thanks,
>

None.  That's identical to the one I have in my queue.  I was only
holding off to send it along with the pending updates to patch 18 and
19 per Alan's concerns.

Acked-by: Dan Williams <dan.j.williams@...el.com>

Side note, as you mentioned before, git trees are horrible for review
purposes, but they are good for sanity checking.  In retrospect I
should have kept this series in a kbuild-robot visible branch.

--
Dan
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