From: Xiong Weimin <[email protected]> vdpasim_kick_vq() sets pending_kick when a virtqueue is kicked while the device is suspended (!running but DRIVER_OK). vdpasim_resume() later replays kicks for all virtqueues when pending_kick is set.
vdpasim_do_reset() clears running and status but leaves pending_kick unchanged. If a kick is deferred during suspend and the device is reset before resume, a later resume can spuriously kick every virtqueue even though no new work was queued after reset. Clear pending_kick in vdpasim_do_reset() together with the other device state that must not survive a reset. Tested-on: openEuler VM (6.16.8, /usr/src/linux-6.16.8) Tested-by: Xiong Weimin <[email protected]> Signed-off-by: Xiong Weimin <[email protected]> --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -161,6 +161,7 @@ static void vdpasim_do_reset(struct vdpasim *vdpasim, u32 flags) } vdpasim->running = false; + vdpasim->pending_kick = false; spin_unlock(&vdpasim->iommu_lock); vdpasim->features = 0; -- 2.43.0
