[PATCH net v2] net: stmmac: resume PHY before hardware setup when opening the interface

Jakub Kicinski kuba at kernel.org
Wed Jul 22 07:42:46 PDT 2026


On Tue,  7 Jul 2026 21:54:25 +0200 Stefan Agner wrote:
> Since the referenced commit, changing the MTU on a running interface no
> longer disconnects and reconnects the PHY; __stmmac_release() merely
> stops phylink, which also suspends the PHY (BMCR power-down) when WoL
> is not enabled. __stmmac_open() then performs the DMA software reset in
> stmmac_hw_setup() before phylink_start() resumes the PHY again.

This patch is 2 weeks old now, which is the time horizon for most 
of our systems. Please repost if it's still relevant.



More information about the linux-arm-kernel mailing list