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-rw-r--r--drivers/infiniband/hw/mthca/mthca_cq.c6
-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c6
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c
index b5aea7b869f6..5687c3014522 100644
--- a/drivers/infiniband/hw/mthca/mthca_cq.c
+++ b/drivers/infiniband/hw/mthca/mthca_cq.c
@@ -373,8 +373,12 @@ static int handle_error_cqe(struct mthca_dev *dev, struct mthca_cq *cq,
* If we're at the end of the WQE chain, or we've used up our
* doorbell count, free the CQE. Otherwise just update it for
* the next poll operation.
+ *
+ * This does not apply to mem-free HCAs: they don't use the
+ * doorbell count field, and so we should always free the CQE.
*/
- if (!(new_wqe & cpu_to_be32(0x3f)) || (!cqe->db_cnt && dbd))
+ if (mthca_is_memfree(dev) ||
+ !(new_wqe & cpu_to_be32(0x3f)) || (!cqe->db_cnt && dbd))
return 0;
cqe->db_cnt = cpu_to_be16(be16_to_cpu(cqe->db_cnt) - dbd);
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 7a58ce90e179..81919a7b4935 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -349,9 +349,9 @@ static int mthca_mmap_uar(struct ib_ucontext *context,
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- if (remap_pfn_range(vma, vma->vm_start,
- to_mucontext(context)->uar.pfn,
- PAGE_SIZE, vma->vm_page_prot))
+ if (io_remap_pfn_range(vma, vma->vm_start,
+ to_mucontext(context)->uar.pfn,
+ PAGE_SIZE, vma->vm_page_prot))
return -EAGAIN;
return 0;