[PATCH net v2] net: stmmac: do not overwrite phc_index when no PTP clock is registered

[patchwork-bot+netdevbpf at kernel.org]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba at kernel.org>:

On Mon, 14 Sep 2026 09:41:07 +0200 you wrote:
> stmmac_get_ts_info() reports phc_index as 0 when hardware timestamping
> is supported but no PTP clock has been registered yet (e.g. while the
> interface is down). Zero is a valid PHC index and would make userspace
> resolve the wrong clock; the absence of a clock should be reported as
> -1.
> 
> The ethtool core already initializes phc_index to -1 before invoking
> the get_ts_info callback (ethtool_init_tsinfo()), so just drop the
> erroneous assignment.
> 
> [...]

Here is the summary with links:
  - [net,v2] net: stmmac: do not overwrite phc_index when no PTP clock is registered
    https://git.kernel.org/netdev/net/c/f0ef4b1eaed0

You are awesome, thank you!
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