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Message-ID: <77012b38-4b49-47f4-9a88-d773d52909ad@infradead.org>
Date: Sun, 25 Feb 2024 22:50:10 -0800
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Subject: Re: [PATCH] net: ethernet: adi: requires PHYLIB support
To: Michal Kubecek <mkubecek@suse.cz>
Cc: linux-kernel@vger.kernel.org, kernel test robot <lkp@intel.com>,
 Lennart Franzen <lennart@lfdomain.com>,
 Alexandru Tachici <alexandru.tachici@analog.com>,
 "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>,
 Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
 netdev@vger.kernel.org
References: <20240215070050.2389-1-rdunlap@infradead.org>
 <20240226064440.ismpxvp5qmnskyna@lion.mk-sys.cz>
Content-Language: en-US
From: Randy Dunlap <rdunlap@infradead.org>
In-Reply-To: <20240226064440.ismpxvp5qmnskyna@lion.mk-sys.cz>
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Hi,

On 2/25/24 22:44, Michal Kubecek wrote:
> On Wed, Feb 14, 2024 at 11:00:50PM -0800, Randy Dunlap wrote:
>> This driver uses functions that are supplied by the Kconfig symbol
>> PHYLIB, so select it to ensure that they are built as needed.
>>
>> When CONFIG_ADIN1110=y and CONFIG_PHYLIB=m, there are multiple build
>> (linker) errors that are resolved by this Kconfig change:
>>
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_net_open':
>>    drivers/net/ethernet/adi/adin1110.c:933: undefined reference to `phy_start'
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_probe_netdevs':
>>    drivers/net/ethernet/adi/adin1110.c:1603: undefined reference to `get_phy_device'
>>    ld: drivers/net/ethernet/adi/adin1110.c:1609: undefined reference to `phy_connect'
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_disconnect_phy':
>>    drivers/net/ethernet/adi/adin1110.c:1226: undefined reference to `phy_disconnect'
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `devm_mdiobus_alloc':
>>    include/linux/phy.h:455: undefined reference to `devm_mdiobus_alloc_size'
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_register_mdiobus':
>>    drivers/net/ethernet/adi/adin1110.c:529: undefined reference to `__devm_mdiobus_register'
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_net_stop':
>>    drivers/net/ethernet/adi/adin1110.c:958: undefined reference to `phy_stop'
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_disconnect_phy':
>>    drivers/net/ethernet/adi/adin1110.c:1226: undefined reference to `phy_disconnect'
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_adjust_link':
>>    drivers/net/ethernet/adi/adin1110.c:1077: undefined reference to `phy_print_status'
>>    ld: drivers/net/ethernet/adi/adin1110.o: in function `adin1110_ioctl':
>>    drivers/net/ethernet/adi/adin1110.c:790: undefined reference to `phy_do_ioctl'
>>    ld: drivers/net/ethernet/adi/adin1110.o:(.rodata+0xf60): undefined reference to `phy_ethtool_get_link_ksettings'
>>    ld: drivers/net/ethernet/adi/adin1110.o:(.rodata+0xf68): undefined reference to `phy_ethtool_set_link_ksettings'
>>
>> Fixes: bc93e19d088b ("net: ethernet: adi: Add ADIN1110 support")
>> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
>> Reported-by: kernel test robot <lkp@intel.com>
>> Closes: https://lore.kernel.org/oe-kbuild-all/202402070626.eZsfVHG5-lkp@intel.com/
>> Cc: Lennart Franzen <lennart@lfdomain.com>
>> Cc: Alexandru Tachici <alexandru.tachici@analog.com>
>> Cc: "David S. Miller" <davem@davemloft.net>
>> Cc: Eric Dumazet <edumazet@google.com>
>> Cc: Jakub Kicinski <kuba@kernel.org>
>> Cc: Paolo Abeni <pabeni@redhat.com>
>> Cc: netdev@vger.kernel.org
>> ---
>>  drivers/net/ethernet/adi/Kconfig |    1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff -- a/drivers/net/ethernet/adi/Kconfig b/drivers/net/ethernet/adi/Kconfig
>> --- a/drivers/net/ethernet/adi/Kconfig
>> +++ b/drivers/net/ethernet/adi/Kconfig
>> @@ -7,6 +7,7 @@ config NET_VENDOR_ADI
>>  	bool "Analog Devices devices"
>>  	default y
>>  	depends on SPI
>> +	select PHYLIB
>>  	help
>>  	  If you have a network (Ethernet) card belonging to this class, say Y.
> 
> Shouldn't the "select PHYLIB" be added to ADIN1110 rather than
> NET_VENDOR_ADI? Now with v6.8-rc6, PHYLIB and few other options are
> forced to "Y" whenever NET_VENDOR_ADI is enabled (even with ADIN1110
> disabled).

ugh, I believe that you are correct.
I'll send a corrected patch.

Thanks.
-- 
#Randy