linux-kernel - Re: [PATCH] pch_gbe: Fix build error by selecting all the possible dependencies.

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Date:	Tue, 09 Oct 2012 13:51:19 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	haicheng.lee@...il.com
Cc:	haicheng.li@...ux.intel.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, fengguang.wu@...el.com
Subject: Re: [PATCH] pch_gbe: Fix build error by selecting all the possible
 dependencies.

From: Haicheng Li <haicheng.lee@...il.com>
Date: Tue,  9 Oct 2012 17:43:12 +0800

> Fengguang reported a kernel build failure as following:
> drivers/built-in.o: In function `pch_gbe_ioctl':
> pch_gbe_main.c:(.text+0x510370): undefined reference to `pch_ch_control_write'
> pch_gbe_main.c:(.text+0x510393): undefined reference to `pch_ch_control_write'
> pch_gbe_main.c:(.text+0x5103b3): undefined reference to `pch_ch_control_write'
> ...
> 
> It's a regression by commit da1586461. The root cause is that
> the CONFIG_PPS is not set there, consequently CONFIG_PTP_1588_CLOCK
> can not be set anyway, which finally causes ptp_pch and pch_gbe_main
> build failures.
> 
> As David prefers to use *select* to fix such module co-dependency issues,
> this patch explicitly selects all the possible dependencies of PCH_PTP.
> 
> Reported-by: Fengguang Wu <fengguang.wu@...el.com>
> Reviewed-by: David S. Miller <davem@...emloft.net>
> Signed-off-by: Haicheng Li <haicheng.lee@...il.com>

Applied, thanks.
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