diff mbox series

[net-next] net: phy: fix phy_disable_eee

Message ID 57e2ae5f-4319-413c-b5c4-ebc8d049bc23@gmail.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series [net-next] net: phy: fix phy_disable_eee | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1 this patch: 1
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 2 this patch: 2
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 1 this patch: 1
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 12 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 39 this patch: 39
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-12-21--00-00 (tests: 879)

Commit Message

Heiner Kallweit Dec. 20, 2024, 10:02 p.m. UTC
genphy_c45_write_eee_adv() becomes a no-op if phydev->supported_eee
is cleared. That's not what we want because this function is still
needed to clear the EEE advertisement register(s).
Fill phydev->eee_broken_modes instead to ensure that userspace
can't re-enable EEE advertising.

Fixes: b55498ff14bd ("net: phy: add phy_disable_eee")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/phy/phy_device.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 928dc3c50..6e169fced 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -3012,10 +3012,11 @@  EXPORT_SYMBOL(phy_support_eee);
  */
 void phy_disable_eee(struct phy_device *phydev)
 {
-	linkmode_zero(phydev->supported_eee);
 	linkmode_zero(phydev->advertising_eee);
 	phydev->eee_cfg.tx_lpi_enabled = false;
 	phydev->eee_cfg.eee_enabled = false;
+	/* don't let userspace re-enable EEE advertisement */
+	linkmode_fill(phydev->eee_broken_modes);
 }
 EXPORT_SYMBOL_GPL(phy_disable_eee);