On 9/25/2023 8:55 AM, Arnd Bergmann wrote:
From: Arnd Bergmann <[email protected]>

A previous fix added PTP as an optional dependency, which was correct as
of commit 87758511075ec ("igc: fix build errors for PTP"), but this
has recently changed with the PTP code getting more deeply integrated
into the ICE driver.

Trying to build ICE when PTP is disabled results in this internal link failure
as the local functions are left out of the driver:

ERROR: modpost: "ice_is_clock_mux_present_e810t" 
[drivers/net/ethernet/intel/ice/ice.ko] undefined!
ERROR: modpost: "ice_is_phy_rclk_present" 
[drivers/net/ethernet/intel/ice/ice.ko] undefined!
ERROR: modpost: "ice_cgu_get_pin_name" [drivers/net/ethernet/intel/ice/ice.ko] 
undefined!
ERROR: modpost: "ice_get_cgu_state" [drivers/net/ethernet/intel/ice/ice.ko] 
undefined!
ERROR: modpost: "ice_is_cgu_present" [drivers/net/ethernet/intel/ice/ice.ko] 
undefined!
ERROR: modpost: "ice_get_cgu_rclk_pin_info" 
[drivers/net/ethernet/intel/ice/ice.ko] undefined!
ERROR: modpost: "ice_cgu_get_pin_type" [drivers/net/ethernet/intel/ice/ice.ko] 
undefined!
ERROR: modpost: "ice_cgu_get_pin_freq_supp" 
[drivers/net/ethernet/intel/ice/ice.ko] undefined!

I tried rearranging the code to allow building it again, but this was getting
too complicated for an outsider, so just enforce the dependency to fix 
randconfig
builds again, until someone wants to clean this up again.

Hi Arnd,

There's a pending patch to netdev that does this [1].

Thanks,
Tony

In practice, any configuration that includes this driver is also going to
want PTP clocks anyway.

Fixes: 8a3a565ff210a ("ice: add admin commands to access cgu configuration")
Signed-off-by: Arnd Bergmann <[email protected]>

[1] https://lore.kernel.org/netdev/[email protected]/
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