Commit b74fd80d authored Nov 20, 2025 by Chenghai Huang Committed by Herbert Xu Dec 19, 2025

crypto: hisilicon/qm - fix incorrect judgment in qm_get_complete_eqe_num()



In qm_get_complete_eqe_num(), the function entry has already
checked whether the interrupt is valid, so the interrupt event
can be processed directly. Currently, the interrupt valid bit is
being checked again redundantly, and no interrupt processing is
performed. Therefore, the loop condition should be modified to
directly process the interrupt event, and use do while instead of
the current while loop, because the condition is always satisfied
on the first iteration.

Fixes: f5a33298 ("crypto: hisilicon/qm - add the save operation of eqe and aeqe")
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

parent 50fdb78b

drivers/crypto/hisilicon/qm.c

+4 −5

Original line number	Diff line number	Diff line
		@@ -991,7 +991,7 @@ static void qm_get_complete_eqe_num(struct hisi_qm *qm)
		return;
		poll_data = &qm->poll_data[cqn];

		while (QM_EQE_PHASE(dw0) != qm->status.eqc_phase) {
		do {
		poll_data->qp_finish_id[eqe_num] = dw0 & QM_EQE_CQN_MASK;
		eqe_num++;

		@@ -1004,11 +1004,10 @@ static void qm_get_complete_eqe_num(struct hisi_qm *qm)
		qm->status.eq_head++;
		}

		if (eqe_num == (eq_depth >> 1) - 1)
		break;

		dw0 = le32_to_cpu(eqe->dw0);
		}
		if (QM_EQE_PHASE(dw0) != qm->status.eqc_phase)
		break;
		} while (eqe_num < (eq_depth >> 1) - 1);

		poll_data->eqe_num = eqe_num;
		queue_work(qm->wq, &poll_data->work);