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* [PATCH 5.1 038/155] EDAC/mpc85xx: Prevent building as a module
       [not found] <>
@ 2019-06-13  8:32 ` Greg Kroah-Hartman
  0 siblings, 0 replies; only message in thread
From: Greg Kroah-Hartman @ 2019-06-13  8:32 UTC (permalink / raw)
  To: linux-kernel
  Cc: Greg Kroah-Hartman, stable, Michael Ellerman, Borislav Petkov,
	Johannes Thumshirn, James Morse, Mauro Carvalho Chehab,
	linux-edac, linuxppc-dev, morbidrsa, Sasha Levin

[ 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 <>
Signed-off-by: Borislav Petkov <>
Acked-by: Johannes Thumshirn <>
Cc: James Morse <>
Cc: Mauro Carvalho Chehab <>
Cc: linux-edac <>
Signed-off-by: Sasha Levin <>
 drivers/edac/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 47eb4d13ed5f..5e2e0348d460 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -263,8 +263,8 @@ 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
 	  Support for error detection and correction on the Freescale
 	  MPC8349, MPC8560, MPC8540, MPC8548, T4240

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2019-06-13  8:32 ` [PATCH 5.1 038/155] EDAC/mpc85xx: Prevent building as a module Greg Kroah-Hartman

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