The irdma_puda_send() calls the irdma_puda_get_next_send_wqe() to get entries, but does not clear the entries after the function call. This could lead to wqe data inconsistency. A proper implementation can be found in irdma_uk_send().

Add the irdma_clr_wqes() after irdma_puda_get_next_send_wqe(). Add the headfile of the irdma_clr_wqes().

Fixes: a3a06db504d3 ("RDMA/irdma: Add privileged UDA queue implementation") Cc: stable@vger.kernel.org # v5.14 Signed-off-by: Wentao Liang vulab@iscas.ac.cn --- drivers/infiniband/hw/irdma/puda.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/infiniband/hw/irdma/puda.c b/drivers/infiniband/hw/irdma/puda.c index 7e3f9bca2c23..1d113ad05500 100644 --- a/drivers/infiniband/hw/irdma/puda.c +++ b/drivers/infiniband/hw/irdma/puda.c @@ -7,6 +7,7 @@ #include "protos.h" #include "puda.h" #include "ws.h" +#include "user.h"

static void irdma_ieq_receive(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *buf); @@ -444,6 +445,8 @@ int irdma_puda_send(struct irdma_sc_qp *qp, struct irdma_puda_send_info *info) if (!wqe) return -ENOMEM;

+ irdma_clr_wqes(qp, wqe_idx); + qp->qp_uk.sq_wrtrk_array[wqe_idx].wrid = (uintptr_t)info->scratch; /* Third line of WQE descriptor */ /* maclen is in words */