linux-kernel - Re: [PATCH 1/7] drivers: usb: Include appropriate header file in hcd.c

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Date:	Thu, 19 Dec 2013 22:11:45 +0530
From:	Rashika Kheria <rashika.kheria@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Linux-Kernel <linux-kernel@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Matthias Beyer <mail@...ermatthias.de>,
	Sarah Sharp <sarah.a.sharp@...ux.intel.com>,
	Hans de Goede <hdegoede@...hat.com>,
	linux-usb <linux-usb@...r.kernel.org>,
	Josh Triplett <josh@...htriplett.org>
Subject: Re: [PATCH 1/7] drivers: usb: Include appropriate header file in hcd.c

On Thu, Dec 19, 2013 at 10:06 PM, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> On Thu, Dec 19, 2013 at 03:36:00PM +0530, Rashika Kheria wrote:
>> Include appropriate header file include/linux/usb/otg.h in core/hcd.c
>> because function usb_bus_start_enum() has its prototype declaration in
>> include/linux/usb/otg.h.
>>
>> This eliminates the following warning in core/hcd.c:
>> drivers/usb/core/hcd.c:2295:5: warning: no previous prototype for ‘usb_bus_start_enum’ [-Wmissing-prototypes]
>
> What is generating this warning?  I don't see it here on my machines,
> nor do I see any of the other warnings you have fixed in this series.
> How do I duplicate them?
>
> thanks,
>
> greg k-h

Hi Greg,

These warning are non-default GCC warnings. These can be seen either
by adding W=1 while running make (i.e. make W=1) or adding
-Wmissing-prototypes in KBUILD_CFLAGS in the toplevel Makefile.

Thanks,
-- 
Rashika Kheria
B.Tech CSE
IIIT Hyderabad
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