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net: sfp-bus: fix SFP mode detect from bitrate 

The referenced commit moved the setting of the Autoneg and pause bits
early in sfp_parse_support(). However, we check whether the modes are
empty before using the bitrate to set some modes. Setting these bits
so early causes that test to always be false, preventing this working,
and thus some modules that used to work no longer do.

Move them just before the call to the quirk.

Fixes: 8110633db4 ("net: sfp-bus: allow SFP quirks to override Autoneg and pause bits")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://lore.kernel.org/r/E1rPMJW-001Ahf-L0@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle) 2024-01-15 12:43:38 +00:00 committed by Jakub Kicinski
parent 776dac5a66
commit 97eb5d51b4
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/phy/sfp-bus.c
View File

@ -151,10 +151,6 @@ void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
unsigned int br_min, br_nom, br_max;
__ETHTOOL_DECLARE_LINK_MODE_MASK(modes) = { 0, };
phylink_set(modes, Autoneg);
phylink_set(modes, Pause);
phylink_set(modes, Asym_Pause);
/* Decode the bitrate information to MBd */
br_min = br_nom = br_max = 0;
if (id->base.br_nominal) {
@ -339,6 +335,10 @@ void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
}
}
phylink_set(modes, Autoneg);
phylink_set(modes, Pause);
phylink_set(modes, Asym_Pause);
if (bus->sfp_quirk && bus->sfp_quirk->modes)
bus->sfp_quirk->modes(id, modes, interfaces);