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net: pcs: xpcs: Explicitly return error on caps validation

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If an unsupported interface is passed to the PCS validation callback there
is no need in further link-modes calculations since the resultant array
will be initialized with zeros which will be perceived by the phylink
subsystem as error anyway (see phylink_validate_mac_and_pcs()). Instead
let's explicitly return the -EINVAL error to inform the caller about the
unsupported interface as it's done in the rest of the pcs_validate
callbacks.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Serge Semin 2024-02-22 20:58:23 +03:00 committed by David S. Miller
parent f5151005d3
commit 361dd531a1
1 changed files with 4 additions and 3 deletions
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7
drivers/net/pcs/pcs-xpcs.c
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@ -613,14 +613,15 @@ static int xpcs_validate(struct phylink_pcs *pcs, unsigned long *supported,
xpcs = phylink_pcs_to_xpcs(pcs);
compat = xpcs_find_compat(xpcs->id, state->interface);
if (!compat)
return -EINVAL;
/* Populate the supported link modes for this PHY interface type.
* FIXME: what about the port modes and autoneg bit? This masks
* all those away.
*/
if (compat)
for (i = 0; compat->supported[i] != __ETHTOOL_LINK_MODE_MASK_NBITS; i++)
set_bit(compat->supported[i], xpcs_supported);
for (i = 0; compat->supported[i] != __ETHTOOL_LINK_MODE_MASK_NBITS; i++)
set_bit(compat->supported[i], xpcs_supported);
linkmode_and(supported, supported, xpcs_supported);