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| author | Vladimir Oltean <[email protected]> | 2023-10-17 14:31:44 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2023-10-19 01:08:23 +0000 |
| commit | 1f9f2143f24e224a8582a5d54918c43b9121eccc (patch) | |
| tree | 8592accc70ed34b9919eff9bea3512701fb2c3ee /net/ipv4/tcp_bpf.c | |
| parent | tcp: tsq: relax tcp_small_queue_check() when rtx queue contains a single skb (diff) | |
| download | kernel-1f9f2143f24e224a8582a5d54918c43b9121eccc.tar.gz kernel-1f9f2143f24e224a8582a5d54918c43b9121eccc.zip | |
net: mdio-mux: fix C45 access returning -EIO after API change
The mii_bus API conversion to read_c45() and write_c45() did not cover
the mdio-mux driver before read() and write() were made C22-only.
This broke arch/arm64/boot/dts/freescale/fsl-ls1028a-qds-13bb.dtso.
The -EOPNOTSUPP from mdiobus_c45_read() is transformed by
get_phy_c45_devs_in_pkg() into -EIO, is further propagated to
of_mdiobus_register() and this makes the mdio-mux driver fail to probe
the entire child buses, not just the PHYs that cause access errors.
Fix the regression by introducing special c45 read and write accessors
to mdio-mux which forward the operation to the parent MDIO bus.
Fixes: db1a63aed89c ("net: phy: Remove fallback to old C45 method")
Signed-off-by: Vladimir Oltean <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Russell King (Oracle) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_bpf.c')
0 files changed, 0 insertions, 0 deletions