linux-kernel - Re: EDAC: Correct Kconfig dependencies

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Message-ID: <20110810223816.GA28802@redhat.com>
Date:	Wed, 10 Aug 2011 18:38:16 -0400
From:	Dave Jones <davej@...hat.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Randy Dunlap <rdunlap@...otime.net>,
	Borislav Petkov <borislav.petkov@....com>
Subject: Re: EDAC: Correct Kconfig dependencies

On Wed, Aug 10, 2011 at 06:59:01PM +0000, Linux Kernel wrote:
 > Gitweb:     http://git.kernel.org/linus/af9d220bac41dc3201893e1601cc7c44f7da4498
 > Commit:     af9d220bac41dc3201893e1601cc7c44f7da4498
 > Parent:     f2c0d0266cc5eb36a4aa44944b4096ec121490aa
 > Author:     Borislav Petkov <borislav.petkov@....com>
 > AuthorDate: Wed Aug 10 14:43:30 2011 +0200
 > Committer:  Linus Torvalds <torvalds@...ux-foundation.org>
 > CommitDate: Wed Aug 10 10:57:42 2011 -0700
 > 
 >     EDAC: Correct Kconfig dependencies
 >     
 >     Both AMD and Intel i7 EDAC drivers use MCE features and are thus
 >     dependent of this functionality present in the kernel. Express this in
 >     Kconfig so that randconfig builds don't break.
 >     
 >     Reported-by: Randy Dunlap <rdunlap@...otime.net>
 >     Signed-off-by: Borislav Petkov <borislav.petkov@....com>
 >     Acked-by: Randy Dunlap <rdunlap@...otime.net>
 >     Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>

This commit broke the build for me..

drivers/edac/i7core_edac.c:259:18: error: field ‘edac_mce’ has incomplete type
drivers/edac/i7core_edac.c:262:23: error: ‘MCE_LOG_LEN’ undeclared here (not in a function)
drivers/edac/i7core_edac.c: In function ‘i7core_mce_output_error’:
drivers/edac/i7core_edac.c:1671:25: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1672:20: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1673:23: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1674:15: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1675:18: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1676:18: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1680:7: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1742:22: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1742:31: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1743:39: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1744:15: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1751:7: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c: In function ‘i7core_check_error’:
drivers/edac/i7core_edac.c:1787:50: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1791:3: error: invalid use of undefined type ‘struct mce’
drivers/edac/i7core_edac.c:1793:49: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c: In function ‘i7core_mce_check_error’:
drivers/edac/i7core_edac.c:1838:11: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1842:9: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1847:293: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1859:52: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c:1864:9: error: dereferencing pointer to incomplete type
drivers/edac/i7core_edac.c: In function ‘i7core_unregister_mci’:
drivers/edac/i7core_edac.c:1910:2: error: implicit declaration of function ‘edac_mce_unregister’ [-Werror=implicit-function-declaration]
drivers/edac/i7core_edac.c: In function ‘i7core_register_mci’:
drivers/edac/i7core_edac.c:2008:2: error: implicit declaration of function ‘edac_mce_register’ [-Werror=implicit-function-declaration]

it needs at least to include asm/mce.h for all the missing types, but the bigger problem
is that CONFIG_EDAC_MCE not being select'd means that we never build edac_mce.o
(it's an unselectable bool in drivers/edac/Kconfig)

	Dave

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