Re: [PATCH] powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y

From: Christophe Leroy
Date: Sat Jul 01 2023 - 02:30:46 EST




Le 01/07/2023 à 07:46, Randy Dunlap a écrit :
>
>
> On 6/9/23 20:11, Randy Dunlap wrote:
>> Hi--
>>
>> On 5/16/23 11:54, Pali Rohár wrote:
>>> On Tuesday 16 May 2023 08:28:54 Randy Dunlap wrote:
>>>> In a randconfig with CONFIG_SERIAL_CPM=m and
>>>> CONFIG_PPC_EARLY_DEBUG_CPM=y, there is a build error:
>>>> ERROR: modpost: "udbg_putc" [drivers/tty/serial/cpm_uart/cpm_uart.ko] undefined!
>>>>
>>>> Prevent the build error by allowing PPC_EARLY_DEBUG_CPM only when
>>>> SERIAL_CPM=y.
>>>>
>>>> Fixes: c374e00e17f1 ("[POWERPC] Add early debug console for CPM serial ports.")
>>>> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
>>>> Cc: Scott Wood <scottwood@xxxxxxxxxxxxx>
>>>> Cc: Kumar Gala <galak@xxxxxxxxxxxxxxxxxxx>
>>>> Cc: "Pali Rohár" <pali@xxxxxxxxxx>
>>>> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
>>>> Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
>>>> Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
>>>> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
>>>
>>> Looks good,
>>>
>>> Reviewed-by: Pali Rohár <pali@xxxxxxxxxx>
>>
>> I'm still seeing this build error in linux-next even with other (PPC) CPM
>> patches applied.
>>
>
> Patchwork shows status as Superseded:
>
> http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20230516152854.22465-1-rdunlap@xxxxxxxxxxxxx/
>
> but I don't understand why or by what.

Neither do I. I must have made a mistake but I can't remember.

>
> I'm going to resubmit the patch now.

Fine, then the previous is really superseeded now.

Christophe

>
>
>>>
>>>> ---
>>>> arch/powerpc/Kconfig.debug | 2 +-
>>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> diff -- a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
>>>> --- a/arch/powerpc/Kconfig.debug
>>>> +++ b/arch/powerpc/Kconfig.debug
>>>> @@ -240,7 +240,7 @@ config PPC_EARLY_DEBUG_40x
>>>>
>>>> config PPC_EARLY_DEBUG_CPM
>>>> bool "Early serial debugging for Freescale CPM-based serial ports"
>>>> - depends on SERIAL_CPM
>>>> + depends on SERIAL_CPM=y
>>>> help
>>>> Select this to enable early debugging for Freescale chips
>>>> using a CPM-based serial port. This assumes that the bootwrapper
>>
>