On 2/20/2014 8:10 PM, Paul Gortmaker wrote:
On 14-02-20 01:05 AM, Prabhakar Kushwaha wrote:
On 2/20/2014 4:16 AM, Paul Gortmaker wrote:
commit d2ae2e20fbdde5a65f3a5a153044ab1e5c53f7cc ("driver/memory:Move
Freescale IFC driver to a common driver") introduces this build
regression into the mpc85xx_defconfig:
drivers/built-in.o: In function `fsl_ifc_nand_remove':
drivers/mtd/nand/fsl_ifc_nand.c:1147: undefined reference to `fsl_ifc_ctrl_dev'
drivers/mtd/nand/fsl_ifc_nand.c:1147: undefined reference to `fsl_ifc_ctrl_dev'
drivers/built-in.o: In function `fsl_ifc_nand_probe':
drivers/mtd/nand/fsl_ifc_nand.c:1031: undefined reference to `fsl_ifc_ctrl_dev'
drivers/mtd/nand/fsl_ifc_nand.c:1031: undefined reference to `fsl_ifc_ctrl_dev'
drivers/built-in.o: In function `match_bank':
drivers/mtd/nand/fsl_ifc_nand.c:1013: undefined reference to `convert_ifc_address'
drivers/built-in.o: In function `fsl_ifc_nand_probe':
drivers/mtd/nand/fsl_ifc_nand.c:1059: undefined reference to `fsl_ifc_ctrl_dev'
drivers/mtd/nand/fsl_ifc_nand.c:1080: undefined reference to `fsl_ifc_ctrl_dev'
drivers/mtd/nand/fsl_ifc_nand.c:1069: undefined reference to `fsl_ifc_ctrl_dev'
drivers/mtd/nand/fsl_ifc_nand.c:1069: undefined reference to `fsl_ifc_ctrl_dev'
make: *** [vmlinux] Error 1
This happens because there is nothing to descend us into the
drivers/memory directory in the mpc85xx_defconfig. It wasn't
selecting CONFIG_MEMORY. So we never built drivers/memory/fsl_ifc.o
and so we have nothing to link the above symbols against.
Since the goal of the original commit was to relocate the driver to
an arch independent location, it only makes sense to relocate the
Kconfig setting there as well. But that alone won't fix the build
failure; for that we ensure whoever selects FSL_IFC also selects MEMORY.
Cc: Prabhakar Kushwaha <prabhakar@xxxxxxxxxxxxx>
Cc: Scott Wood <scottwood@xxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---
[v2: fix the mislocated FSL_IFC as per Scott's comment. It still
probably makes sense to go in via Greg's char-misc/char-misc-next
(vs. powerpc-next) since that is where the regression was introduced.]
arch/powerpc/Kconfig | 4 ----
drivers/memory/Kconfig | 4 ++++
drivers/mtd/nand/Kconfig | 1 +
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 957bf344c0f5..b9fcecc706ab 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -736,10 +736,6 @@ config FSL_LBC
controller. Also contains some common code used by
drivers for specific local bus peripherals.
-config FSL_IFC
- bool
- depends on FSL_SOC
-
config FSL_GTM
bool
depends on PPC_83xx || QUICC_ENGINE || CPM2
diff --git a/drivers/memory/Kconfig b/drivers/memory/Kconfig
index 29a11db365bc..a3640fe9852f 100644
--- a/drivers/memory/Kconfig
+++ b/drivers/memory/Kconfig
@@ -50,4 +50,8 @@ config TEGRA30_MC
analysis, especially for IOMMU/SMMU(System Memory Management
Unit) module.
+config FSL_IFC
+ bool
+ depends on FSL_SOC
+
endif
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 90ff447bf043..a4bee41ad5cb 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -428,6 +428,7 @@ config MTD_NAND_FSL_IFC
tristate "NAND support for Freescale IFC controller"
depends on MTD_NAND && FSL_SOC
select FSL_IFC
+ select MEMORY
help
Various Freescale chips e.g P1010, include a NAND Flash machine
with built-in hardware ECC capabilities.
Hi All,
I am not sure which version of patch is being picked here.
Latest version is v8 and it is a "patch set" and it do enable
CONFIG_MEMORY in powerpc/configs
It really doesn't matter what the latest version is, if the
maintainer has already taken an earlier version and merged it.
In that case one needs to work with the maintainer to determine
whether they want a new version, or a delta/fixup commit on the
old one.
I think, I got the reason of this issue.
I thought this patch will be picked by powerpc.git and updated version
were sent on linuxppc-dev mail list after initial version review on both
powerpc and linux-kernel mailing list. It should have sent on both the
list "always". A learning for future :)
I am OK with the current patch and modification because it full fill
my requirements.
I will sent separate patch to fix other things.
1. driver/memory:Move Freescale IFC driver to a common driver
http://patchwork.ozlabs.org/patch/315531/
So, this has the Kconfig move part, but the one currently in
char-misc does not. And it still needs the "select".
2. powerpc/config: Enable memory driver
http://patchwork.ozlabs.org/patch/315532/
Updating the defconfigs is fine, but incomplete in itself. You
still need the IFC users to select MEMORY, otherwise you still
introduce build failures for anyone else who chooses IFC but
does not choose MEMORY.
In short, the char-misc tree still needs the v2 patch above.
Yes, this patch still required.
Thanks,
Prabhakar
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