[PATCH] ice: wait for reset completion in ice_resume()

Aaron Ma
2026-04-02T02:43:52Z

ice_resume() schedules an asynchronous PF reset and returns
immediately. The reset runs later in ice_service_task(). If
userspace tries to bring up the net device before the reset
finishes, ice_open() fails with -EBUSY:

ice_resume()
ice_schedule_reset() # sets ICE_PFR_REQ, returns
...
ice_open()
ice_is_reset_in_progress() # ICE_PFR_REQ still set, -EBUSY
...
ice_service_task()
ice_do_reset()
ice_rebuild() # clears ICE_PFR_REQ, too late

Reproduced on E800 series NICs during suspend/resume with irdma
enabled, where the aux device probe widens the race window.

Wait for the reset to complete before returning from ice_resume().

Fixes: 769c500dcc1e ("ice: Add advanced power mgmt for WoL")
Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
---
drivers/net/ethernet/intel/ice/ice_main.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 3c36e3641b9e9..a029c247510fd 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -5702,6 +5702,16 @@ static int ice_resume(struct device *dev)
/* Restart the service task */
mod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));

+ /* Wait for the scheduled reset to finish so that the device is fully
+ * operational before returning. Without this, userspace (e.g.
+ * NetworkManager) may try to open the net device while the
+ * asynchronous reset and rebuild is still in progress, resulting in
+ * "can't open net device while reset is in progress" errors.
+ */
+ ret = ice_wait_for_reset(pf, 10 * HZ);
+ if (ret)
+ dev_err(dev, "Wait for reset failed during resume: %d\n", ret);
+
return 0;
}

--
2.43.0