On 1/21/21 5:14 PM, Michael Ellerman wrote:
Randy Dunlap <rdun...@infradead.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 <rdun...@infradead.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 <rdun...@infradead.org>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Yury Norov <yury.no...@gmail.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?

Hi Michael,
Sorry for the delay.

Changing the akebono_defconfig doesn't cause the missing symbols
to be set -- the defconfig is not being used here.

I guess that if you have users who set CONFIG_AKEBONO and expect
it to build cleanly, you will need something like my patch or the
patch that Florian just posted.

Changing the akebono_defconfig also would not help 'make randconfig'
builds to build cleanly if they had happened to enable AKEBONO.


We don't need to add ETHERNET or NET_VENDOR_IBM to the defconfig because
they're both default y.

cheers

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