> -----Original Message----- > From: Intel-wired-lan <[email protected]> On Behalf Of > Aleksandr Loktionov > Sent: 27 March 2026 12:53 > To: [email protected]; Nguyen, Anthony L > <[email protected]>; Loktionov, Aleksandr > <[email protected]> > Cc: [email protected]; Greenwalt, Paul <[email protected]> > Subject: [Intel-wired-lan] [PATCH net] ice: fix PTP Call Trace during PTP > release > > From: Paul Greenwalt <[email protected]> > > If a PF reset occurs when the PTP state is ICE_PTP_UNINIT, then > ice_ptp_rebuild() will update the state to ICE_PTP_ERROR. This will result in > the following PTP release call trace during driver unload: > > kernel BUG at lib/list_debug.c:52! > ice_ptp_release+0x332/0x3c0 [ice] > ice_deinit_features.part.0+0x10e/0x120 [ice] > ice_remove+0x100/0x220 [ice] > > This was observed when passing PF1 through to a VM. ice_ptp_init() fails > because ctrl_pf is NULL and sets the state to ICE_PTP_UNINIT. > > Fix by detecting the ICE_PTP_UNINIT state in ice_ptp_rebuild() and returning > without error, preventing the invalid state transition to ICE_PTP_ERROR. The > only valid path to ICE_PTP_ERROR is from ICE_PTP_RESETTING after a failed > rebuild. > > Fixes: 8293e4cb2ff5 ("ice: introduce PTP state machine") > Cc: [email protected] > Signed-off-by: Paul Greenwalt <[email protected]> > Signed-off-by: Aleksandr Loktionov <[email protected]> > --- > > drivers/net/ethernet/intel/ice/ice_ptp.c | 5 +++++ > 1 file changed, 5 insertions(+) >
Tested-by: Rinitha S <[email protected]> (A Contingent worker at Intel)
