On 16/10/15 12:25, Arnd Bergmann wrote:
> On Friday 16 October 2015 09:54:45 Brian Norris wrote:
>>> MTD_NAND_BRCMNAND uses the generic nand functions, but is currently allowed
>>> to be built without CONFIG_MTD_NAND, which results in a link error:
>>>
>>> drivers/built-in.o: In function `brcmnand_remove':
>>> coresight-replicator.c:(.text+0x17ae6c): undefined reference to `nand_release'
>>> drivers/built-in.o: In function `brcmnand_probe':
>>> coresight-replicator.c:(.text+0x17d4b4): undefined reference to `nand_scan_ident'
>>> coresight-replicator.c:(.text+0x17d948): undefined reference to `nand_scan_tail'
>>
>> How did you get this? MTD_NAND_BRCMNAND is surrounded in the
>> 'if MTD_NAND' block, which implicitly generates a MTD_NAND dependency.
>> And I can confirm that in menuconfig, I see this when I disable MTD_NAND
>> and search for BRCMNAND:
>>
>> Symbol: MTD_NAND_BRCMNAND [=n]
>> Type : tristate
>> Prompt: Broadcom STB NAND controller
>> Location:
>> -> Device Drivers
>> -> Memory Technology Device (MTD) support (MTD [=y])
>> (1) -> NAND Device Support (MTD_NAND [=n])
>> Defined at drivers/mtd/nand/Kconfig:394
>> Depends on: MTD [=y] && MTD_NAND [=n] && (ARM [=y] || ARM64 || MIPS)
>
> Sorry, can't reproduce it any more. My patch is dated June 4, so it was
> probably broken then but got fixed since. I normally try to verify that
> the patches are still needed before I send them, but this time I only
> saw the current discussion and remembered something vague about it
> and sent what I had in my backlog of the randconfig-fixes series.
It may have been a problem before this patch:
d80d942bcc8e1555a76774d20be9800cfef2d415 ("ARM: BCM: Do not select
CONFIG_MTD_NAND_BRCMNAND")
--
Florian
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