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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Borislav Petkov <bp@suse.de>, Johannes Thumshirn <jth@kernel.org>,
	James Morse <james.morse@arm.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-edac <linux-edac@vger.kernel.org>,
	linuxppc-dev@ozlabs.org, morbidrsa@gmail.com,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.14 23/99] EDAC/mpc85xx: Prevent building as a module
Date: Sat,  1 Jun 2019 09:22:30 -0400
Message-ID: <20190601132346.26558-23-sashal@kernel.org> (raw)
In-Reply-To: <20190601132346.26558-1-sashal@kernel.org>

From: Michael Ellerman <mpe@ellerman.id.au>

[ Upstream commit 2b8358a951b1e2a534a54924cd8245e58a1c5fb8 ]

The mpc85xx EDAC driver can be configured as a module but then fails to
build because it uses two unexported symbols:

  ERROR: ".pci_find_hose_for_OF_device" [drivers/edac/mpc85xx_edac_mod.ko] undefined!
  ERROR: ".early_find_capability" [drivers/edac/mpc85xx_edac_mod.ko] undefined!

We don't want to export those symbols just for this driver, so make the
driver only configurable as a built-in.

This seems to have been broken since at least

  c92132f59806 ("edac/85xx: Add PCIe error interrupt edac support")

(Nov 2013).

 [ bp: make it depend on EDAC=y so that the EDAC core doesn't get built
   as a module. ]

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: linuxppc-dev@ozlabs.org
Cc: morbidrsa@gmail.com
Link: https://lkml.kernel.org/r/20190502141941.12927-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/edac/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 96afb2aeed18a..aaaa8ce8d3fdd 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -246,8 +246,8 @@ config EDAC_PND2
 	  micro-server but may appear on others in the future.
 
 config EDAC_MPC85XX
-	tristate "Freescale MPC83xx / MPC85xx"
-	depends on FSL_SOC
+	bool "Freescale MPC83xx / MPC85xx"
+	depends on FSL_SOC && EDAC=y
 	help
 	  Support for error detection and correction on the Freescale
 	  MPC8349, MPC8560, MPC8540, MPC8548, T4240
-- 
2.20.1


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