Commit e12deda1 ("IB/qib: RCU locking for MR validation") introduced
new sparse warnings in qib_keys.c.This patch resolved those issues. Signed-off-by: Mike Marciniszyn <[email protected]> --- drivers/infiniband/hw/qib/qib_keys.c | 4 +++- drivers/infiniband/hw/qib/qib_verbs.h | 4 ++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c index 970165b..e9486c7 100644 --- a/drivers/infiniband/hw/qib/qib_keys.c +++ b/drivers/infiniband/hw/qib/qib_keys.c @@ -349,7 +349,9 @@ int qib_fast_reg_mr(struct qib_qp *qp, struct ib_send_wr *wr) if (pd->user || rkey == 0) goto bail; - mr = rkt->table[(rkey >> (32 - ib_qib_lkey_table_size))]; + mr = rcu_dereference_protected( + rkt->table[(rkey >> (32 - ib_qib_lkey_table_size))], + lockdep_is_held(&rkt->lock)); if (unlikely(mr == NULL || qp->ibqp.pd != mr->pd)) goto bail; diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h index cffeabb..319368e 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.h +++ b/drivers/infiniband/hw/qib/qib_verbs.h @@ -650,7 +650,7 @@ struct qib_lkey_table { u32 next; /* next unused index (speeds search) */ u32 gen; /* generation count */ u32 max; /* size of the table */ - struct qib_mregion **table; + struct qib_mregion __rcu **table; }; struct qib_opcode_stats { @@ -733,7 +733,7 @@ struct qib_ibdev { struct list_head pending_mmaps; spinlock_t mmap_offset_lock; /* protect mmap_offset */ u32 mmap_offset; - struct qib_mregion *dma_mr; + struct qib_mregion __rcu *dma_mr; /* QP numbers are shared by all IB ports */ struct qib_qpn_table qpn_table; -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
