netdev - Re: [gpio:for-next 67/67] pch_gbe_main.c:undefined reference to `devm_gpio_request

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Date:	Fri, 25 Oct 2013 12:41:57 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Darren Hart <dvhart@...ux.intel.com>,
	"David S. Miller" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Cc:	Fengguang Wu <fengguang.wu@...el.com>,
	David Cohen <david.a.cohen@...ux.intel.com>,
	Alexandre Courbot <acourbot@...dia.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>
Subject: Re: [gpio:for-next 67/67] pch_gbe_main.c:undefined reference to `devm_gpio_request_one'

On Fri, Oct 25, 2013 at 12:24 PM, Darren Hart <dvhart@...ux.intel.com> wrote:
> On Fri, 2013-10-25 at 11:34 +0200, Linus Walleij wrote:

> Minnow doesn't currently have a CONFIG_ upstream which can be used to
> force this selection.

Well it wouldn't help with randconfig or allyesconfig anyway.

>> Is there some default y we can add so this gets compiled for this
>> entire board, or shall I set:
>>
>> depends on PCH_GBE
>> default y
>>
>> On the GPIO_LYNXPOINT or GPIO_PCH driver?
>
> Why would GPIO_PCH depend on PCH_GBE? The inverse is certainly true for
> MinnowBoard.

OK this was the wrong idea.

> I had some MinnowBoard Kconfig bits in my early drivers, but they
> included things like CONFIG_MINNOWBOARD which is not upstream (rightly
> so) but it means I don't have a way to conditionally make PCH_GBE
> dependent on GPIO_PCH and GPIOLIB.
>
> I wouldn't object to adding a dependency to GPIO_PCH and GPIOLIB
> unconditionally for PCH_GBE as GPIO_PCH is the same chip... but I don't
> know if David Miller would be amenable to that.

Well we should probably just stick a dependency to GPIOLIB in there.

- It #includes <linux/gpio.h>
- It uses gpiolib functions to do something vital

It was just happy that dummy versions were slotted in until now.

I'll post the following:
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig b/drivers/net/etherne
index a588ffde9700..f2528262aba7 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
@@ -4,7 +4,7 @@

 config PCH_GBE
        tristate "OKI SEMICONDUCTOR IOH(ML7223/ML7831) GbE"
-       depends on PCI && (X86 || COMPILE_TEST)
+       depends on PCI && GPIOLIB && (X86 || COMPILE_TEST)
        select MII
        select PTP_1588_CLOCK_PCH
        ---help---

Yours,
Linus Walleij
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