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Date:   Thu, 21 Jan 2021 17:22:10 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Yury Norov <yury.norov@...il.com>,
        linuxppc-dev@...ts.ozlabs.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
CC:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH] powerpc: fix AKEBONO build failures

On January 21, 2021 5:14:23 PM PST, Michael Ellerman <mpe@...erman.id.au> wrote:
>Randy Dunlap <rdunlap@...radead.org> writes:
>> On 1/20/21 1:29 PM, Yury Norov wrote:
>>> Hi all,
>>> 
>>> I found the power pc build broken on today's
>>> linux-next (647060f3b592).
>>
>> Darn, I was building linux-5.11-rc4.
>>
>> I'll try linux-next after I send this.
>>
>> ---
>> From: Randy Dunlap <rdunlap@...radead.org>
>>
>> Fulfill AKEBONO Kconfig requirements.
>>
>> Fixes these Kconfig warnings (and more) and fixes the subsequent
>> build errors:
>>
>> WARNING: unmet direct dependencies detected for NETDEVICES
>>   Depends on [n]: NET [=n]
>>   Selected by [y]:
>>   - AKEBONO [=y] && PPC_47x [=y]
>>
>> WARNING: unmet direct dependencies detected for MMC_SDHCI
>>   Depends on [n]: MMC [=n] && HAS_DMA [=y]
>>   Selected by [y]:
>>   - AKEBONO [=y] && PPC_47x [=y]
>>
>> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
>> Cc: Michael Ellerman <mpe@...erman.id.au>
>> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
>> Cc: Paul Mackerras <paulus@...ba.org>
>> Cc: linuxppc-dev@...ts.ozlabs.org
>> Cc: Yury Norov <yury.norov@...il.com>
>> ---
>>  arch/powerpc/platforms/44x/Kconfig |    2 ++
>>  1 file changed, 2 insertions(+)
>>
>> --- lnx-511-rc4.orig/arch/powerpc/platforms/44x/Kconfig
>> +++ lnx-511-rc4/arch/powerpc/platforms/44x/Kconfig
>> @@ -206,6 +206,7 @@ config AKEBONO
>>  	select PPC4xx_HSTA_MSI
>>  	select I2C
>>  	select I2C_IBM_IIC
>> +	select NET
>>  	select NETDEVICES
>>  	select ETHERNET
>>  	select NET_VENDOR_IBM
>
>I think the problem here is too much use of select, for things that
>should instead be in the defconfig.
>
>The patch below results in the same result for make
>44x/akebono_defconfig. Does it fix the original issue?
>
>We don't need to add ETHERNET or NET_VENDOR_IBM to the defconfig
>because
>they're both default y.
>
>cheers
>
>
>diff --git a/arch/powerpc/configs/44x/akebono_defconfig
>b/arch/powerpc/configs/44x/akebono_defconfig
>index 3894ba8f8ffc..6b08a85f4ce6 100644
>--- a/arch/powerpc/configs/44x/akebono_defconfig
>+++ b/arch/powerpc/configs/44x/akebono_defconfig
>@@ -21,6 +21,7 @@ CONFIG_IRQ_ALL_CPUS=y
> # CONFIG_COMPACTION is not set
> # CONFIG_SUSPEND is not set
> CONFIG_NET=y
>+CONFIG_NETDEVICES=y
> CONFIG_PACKET=y
> CONFIG_UNIX=y
> CONFIG_INET=y
>@@ -98,6 +99,8 @@ CONFIG_USB_OHCI_HCD=y
> # CONFIG_USB_OHCI_HCD_PCI is not set
> CONFIG_USB_STORAGE=y
> CONFIG_MMC=y
>+CONFIG_MMC_SDHCI=y
>+CONFIG_MMC_SDHCI_PLTFM=y
> CONFIG_RTC_CLASS=y
> CONFIG_RTC_DRV_M41T80=y
> CONFIG_EXT2_FS=y
>diff --git a/arch/powerpc/platforms/44x/Kconfig
>b/arch/powerpc/platforms/44x/Kconfig
>index 78ac6d67a935..509b329c112f 100644
>--- a/arch/powerpc/platforms/44x/Kconfig
>+++ b/arch/powerpc/platforms/44x/Kconfig
>@@ -206,15 +206,10 @@ config AKEBONO
>        select PPC4xx_HSTA_MSI
>        select I2C
>        select I2C_IBM_IIC
>-       select NETDEVICES
>-       select ETHERNET
>-       select NET_VENDOR_IBM
>        select IBM_EMAC_EMAC4 if IBM_EMAC
>        select USB if USB_SUPPORT
>        select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
>        select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
>-       select MMC_SDHCI
>-       select MMC_SDHCI_PLTFM
>        select ATA
>        select SATA_AHCI_PLATFORM
>        help

Sure. I thought that lots of what was already there
should be in the defconfig. I  was just going with the flow. 

Thanks for fixing it. 

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

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