On Mon, Feb 28, 2022 at 08:51:44PM +0100, Niels Dossche wrote: > The documentation of the function rvt_error_qp says both r_lock and > s_lock need to be held when calling that function. > It also asserts using lockdep that both of those locks are held. > rvt_error_qp is called form rvt_send_cq, which is called from > rvt_qp_complete_swqe, which is called from rvt_send_complete, which is > called from rvt_ruc_loopback in two places. Both of these places do not > hold r_lock. Fix this by acquiring a spin_lock of r_lock in both of > these places. > The r_lock acquiring cannot be added in rvt_qp_complete_swqe because > some of its other callers already have r_lock acquired. > > Signed-off-by: Niels Dossche <dossche.niels@xxxxxxxxx> > --- > drivers/infiniband/sw/rdmavt/qp.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) Applied to for-next, thanks Jason
