linux-kernel - Re: [PATCH v2 2/3] ARM: cns3xxx: Add architecture definition for EHCI/OHCI controller

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Date:	Thu, 25 Nov 2010 21:51:23 +0800
From:	Lin Mac <mkl0301@...il.com>
To:	Anton Vorontsov <cbouatmailru@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	dbrownell@...rs.sourceforge.net, linux-usb@...r.kernel.org
Subject: Re: [PATCH v2 2/3] ARM: cns3xxx: Add architecture definition for
 EHCI/OHCI controller

2010/11/25 Anton Vorontsov <cbouatmailru@...il.com>:
> On Thu, Nov 25, 2010 at 03:25:38PM +0800, Lin Mac wrote:
> [...]
>> >  #include <linux/module.h>
>> >  #include <linux/io.h>
>> >  #include <linux/delay.h>
>> > +#include <asm/atomic.h>
>> It's not necessary for mach/pm.h already included it, right?
>
> Technically, it's not necessary. But in Linux we don't rely on
> headers including other headers. Think that someday mach/pm.h
> may not include asm/atomic.h, so the build will break.
>
> Thanks,

Get it. So should I re-submit all 3 patches, or just the last one?

>>
>> >  #include <mach/system.h>
>> >  #include <mach/cns3xxx.h>
>> >  #include <mach/pm.h>
>> > @@ -117,3 +118,6 @@ int cns3xxx_cpu_clock(void)
>> >        return cpu;
>> >  }
>> >  EXPORT_SYMBOL(cns3xxx_cpu_clock);
>> > +
>> > +atomic_t usb_pwr_ref = ATOMIC_INIT(0);
>> > +EXPORT_SYMBOL(usb_pwr_ref);
--
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