Do away with link status polling on LAN95xx USB Ethernet and rely on interrupts instead, thereby reducing bus traffic, CPU overhead and improving interface bringup latency. Link to v2: https://lore.kernel.org/netdev/cover.1651574194.git.lukas@xxxxxxxxx/ Only change since v2: * Patch [5/7]: * Drop call to __irq_enter_raw() which worked around a warning in generic_handle_domain_irq(). That warning is gone since 792ea6a074ae (queued on tip.git/irq/urgent). (Marc Zyngier, Thomas Gleixner) Lukas Wunner (7): usbnet: Run unregister_netdev() before unbind() again usbnet: smsc95xx: Don't clear read-only PHY interrupt usbnet: smsc95xx: Don't reset PHY behind PHY driver's back usbnet: smsc95xx: Avoid link settings race on interrupt reception usbnet: smsc95xx: Forward PHY interrupts to PHY driver to avoid polling net: phy: smsc: Cache interrupt mask net: phy: smsc: Cope with hot-removal in interrupt handler drivers/net/phy/smsc.c | 28 +++--- drivers/net/usb/asix_devices.c | 6 +- drivers/net/usb/smsc95xx.c | 152 +++++++++++++++------------------ drivers/net/usb/usbnet.c | 6 +- 4 files changed, 88 insertions(+), 104 deletions(-) -- 2.35.2
