Re: [PATCH net v1 1/2] net: dsa: microchip: fix devicetree parsing of cpu node

Andrew, Jakub,

On Sat, Dec 5, 2020 at 10:28 AM Sven Van Asbroeck [off-list ref] wrote:

From: Sven Van Asbroeck <redacted>

On the ksz8795, if the devicetree contains a cpu node,
devicetree parsing fails and the whole driver errors out.

Fix the devicetree parsing code by making it use the
correct number of ports.

Fixes: 912aae27c6af ("net: dsa: microchip: really look for phy-mode in port nodes")
Tested-by: Sven Van Asbroeck <redacted> # ksz8795
Signed-off-by: Sven Van Asbroeck <redacted>
---

Any chance that this patch could still get merged?
I believe this will work fine on both ksz8795 and ksz9477, even though num_ports
is defined differently, because:

ksz8795:
/* set the real number of ports */
dev->ds->num_ports = dev->port_cnt + 1;
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/dsa/microchip/ksz8795.c?h=v5.10-rc7#n1266

ksz9477:
/* set the real number of ports */
dev->ds->num_ports = dev->port_cnt;
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/dsa/microchip/ksz9477.c?h=v5.10-rc7#n1585

Would it be possible to merge this into net, so users get working cpu nodes?
I don't think this will prevent you from harmonizing port_cnt in net-next.