[PATCH net] net: phy: Kconfig: Fix error related to undefined reference

[PATCH net] net: phy: Kconfig: Fix error related to undefined reference

[Divya Koppera]

When microchip_t1_phy is built in and phyptp is module
facing undefined reference issue. This get fixed when
microchip_t1_phy made dependent on PTP_1588_CLOCK_OPTIONAL.

Reported-by: kernel test robot <lkp@intel.com>
Closes:
https://lore.kernel.org/oe-kbuild-all/202501090604.YEoJXCXi-lkp@intel.com
Fixes: fa51199c5f34 ("net: phy: microchip_rds_ptp : Add rds ptp library for Microchip phys")
Signed-off-by: Divya Koppera <divya.koppera@microchip.com>
---
 drivers/net/phy/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index dc625f2b3ae4..9ad3dbfd2f99 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -287,8 +287,8 @@ config MICROCHIP_PHY
 
 config MICROCHIP_T1_PHY
 	tristate "Microchip T1 PHYs"
-	select MICROCHIP_PHY_RDS_PTP if NETWORK_PHY_TIMESTAMPING && \
-				  PTP_1588_CLOCK_OPTIONAL
+	select MICROCHIP_PHY_RDS_PTP if NETWORK_PHY_TIMESTAMPING
+	depends on PTP_1588_CLOCK_OPTIONAL
 	help
 	  Supports the LAN8XXX PHYs.
 
-- 
2.17.1

Re: [PATCH net] net: phy: Kconfig: Fix error related to undefined reference

[Simon Horman]

On Thu, Jan 09, 2025 at 05:44:32PM +0530, Divya Koppera wrote:
> When microchip_t1_phy is built in and phyptp is module
> facing undefined reference issue. This get fixed when
> microchip_t1_phy made dependent on PTP_1588_CLOCK_OPTIONAL.
> 
> Reported-by: kernel test robot <lkp@intel.com>
> Closes:
> https://lore.kernel.org/oe-kbuild-all/202501090604.YEoJXCXi-lkp@intel.com
> Fixes: fa51199c5f34 ("net: phy: microchip_rds_ptp : Add rds ptp library for Microchip phys")
> Signed-off-by: Divya Koppera <divya.koppera@microchip.com>

Hi Divya,

I think that this patch should be targeted at net-next, where
the problem seems to manifest, rather than net where it does not.
Likewise, this patch applies to net-next, but not net.

Also, I think the prefix for the patch should be "net: phy: microchip_t1".
And perhaps the following subject is a bit more descriptive.

	[PATCH net-next] net: phy: microchip_t1: depend on PTP_1588_CLOCK_OPTIONAL

As for the code change itself, it looks good to me.

Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested

-- 
pw-bot: changes-requested