Re: linux-next: Tree for March 8 (mtd)

From: Randy Dunlap
Date: Mon Mar 08 2010 - 12:27:52 EST


On 03/07/10 20:27, Stephen Rothwell wrote:
> Hi all,
>
> Changes since 20100305:
>
>
> The mtd tree still has its 2 build failures for which I applied patches.


drivers/mtd/sm_ftl.c:
sm_ftl.c:(.text+0x9c110): undefined reference to `__nand_calculate_ecc'
sm_ftl.c:(.text+0x9c123): undefined reference to `__nand_correct_data'
sm_ftl.c:(.text+0x9c14a): undefined reference to `__nand_calculate_ecc'
sm_ftl.c:(.text+0x9c15d): undefined reference to `__nand_correct_data'
sm_ftl.c:(.text+0x9c9ac): undefined reference to `__nand_calculate_ecc'
sm_ftl.c:(.text+0x9c9bf): undefined reference to `__nand_calculate_ecc'


CONFIG_SM_FTL=y
CONFIG_SM_FTL_MUSEUM=y

CONFIG_MTD_NAND=m
CONFIG_MTD_NAND_VERIFY_WRITE=y
CONFIG_MTD_NAND_ECC_SMC=y

but drivers/mtd/nand/Makefile does this:
obj-$(CONFIG_MTD_NAND) += nand.o nand_ecc.o

so having CONFIG_MTD_NAND_ECC_SMC different from CONFIG_MTD_NAND does not work.


Also:

config SM_FTL
tristate "SmartMedia/xD new translation layer"
depends on EXPERIMENTAL && BLOCK
select MTD_BLKDEVS
help
This enables new and very EXPERMENTAL support for SmartMedia/xD
EXPERIMENTAL

FTL (Flash tanslation layer)
end with .

Write support isn't yet well tested, therefore this code IS likely to
eat your card, so please don't use it together with valuable data.
Use readonly driver (CONFIG_SSFDC) instead.

config SM_FTL_MUSEUM
boolean "Additional Support for 1MiB and 2MiB SmartMedia cards"
depends on SM_FTL && MTD_NAND
select MTD_NAND_ECC_SMC
help
Very old SmartMedia cards need ECC to be calculated in the FTL
end with .

Such cards are very rare, thus enabling this option is mostly useless
end with .

Also this support is completely UNTESTED.



--
~Randy
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