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Message-ID: <a80acd62-69d2-f3dc-410f-8d9722980e74@infradead.org>
Date:   Fri, 30 Jun 2023 22:46:12 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Pali Rohár <pali@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Kumar Gala <galak@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y



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@...radead.org>
>>> Cc: Scott Wood <scottwood@...escale.com>
>>> Cc: Kumar Gala <galak@...nel.crashing.org>
>>> Cc: "Pali Rohár" <pali@...nel.org>
>>> Cc: Michael Ellerman <mpe@...erman.id.au>
>>> Cc: Nicholas Piggin <npiggin@...il.com>
>>> Cc: Christophe Leroy <christophe.leroy@...roup.eu>
>>> Cc: linuxppc-dev@...ts.ozlabs.org
>>
>> Looks good,
>>
>> Reviewed-by: Pali Rohár <pali@...nel.org>
> 
> 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Patchwork shows status as Superseded: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@infradead.org/

but I don't understand why or by what.

I'm going to resubmit the patch now.


>>
>>> ---
>>>  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
> 

-- 
~Randy

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