cross-tree: phase out dma_zalloc_coherent()

We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.

This change was generated with the following Coccinelle SmPL patch:

@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@

-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>

1 files changed, 15 insertions, 14 deletions

diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index 09044905284f..7835eb52e7c5 100644
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -899,10 +899,10 @@ int hfi1_init(struct hfi1_devdata *dd, int reinit)
                 goto done;
 
         /* allocate dummy tail memory for all receive contexts */
-        dd->rcvhdrtail_dummy_kvaddr = dma_zalloc_coherent(
-                &dd->pcidev->dev, sizeof(u64),
-                &dd->rcvhdrtail_dummy_dma,
-                GFP_KERNEL);
+        dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev,
+                                                         sizeof(u64),
+                                                         &dd->rcvhdrtail_dummy_dma,
+                                                         GFP_KERNEL);
 
         if (!dd->rcvhdrtail_dummy_kvaddr) {
                 dd_dev_err(dd, "cannot allocate dummy tail memory\n");
@@ -1863,9 +1863,9 @@ int hfi1_create_rcvhdrq(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd)
                         gfp_flags = GFP_KERNEL;
                 else
                         gfp_flags = GFP_USER;
-                rcd->rcvhdrq = dma_zalloc_coherent(
-                        &dd->pcidev->dev, amt, &rcd->rcvhdrq_dma,
-                        gfp_flags | __GFP_COMP);
+                rcd->rcvhdrq = dma_alloc_coherent(&dd->pcidev->dev, amt,
+                                                  &rcd->rcvhdrq_dma,
+                                                  gfp_flags | __GFP_COMP);
 
                 if (!rcd->rcvhdrq) {
                         dd_dev_err(dd,
@@ -1876,9 +1876,10 @@ int hfi1_create_rcvhdrq(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd)
 
                 if (HFI1_CAP_KGET_MASK(rcd->flags, DMA_RTAIL) ||
                     HFI1_CAP_UGET_MASK(rcd->flags, DMA_RTAIL)) {
-                        rcd->rcvhdrtail_kvaddr = dma_zalloc_coherent(
-                                &dd->pcidev->dev, PAGE_SIZE,
-                                &rcd->rcvhdrqtailaddr_dma, gfp_flags);
+                        rcd->rcvhdrtail_kvaddr = dma_alloc_coherent(&dd->pcidev->dev,
+                                                                    PAGE_SIZE,
+                                                                    &rcd->rcvhdrqtailaddr_dma,
+                                                                    gfp_flags);
                         if (!rcd->rcvhdrtail_kvaddr)
                                 goto bail_free;
                 }
@@ -1974,10 +1975,10 @@ int hfi1_setup_eagerbufs(struct hfi1_ctxtdata *rcd)
         while (alloced_bytes < rcd->egrbufs.size &&
                rcd->egrbufs.alloced < rcd->egrbufs.count) {
                 rcd->egrbufs.buffers[idx].addr =
-                        dma_zalloc_coherent(&dd->pcidev->dev,
-                                            rcd->egrbufs.rcvtid_size,
-                                            &rcd->egrbufs.buffers[idx].dma,
-                                            gfp_flags);
+                        dma_alloc_coherent(&dd->pcidev->dev,
+                                           rcd->egrbufs.rcvtid_size,
+                                           &rcd->egrbufs.buffers[idx].dma,
+                                           gfp_flags);
                 if (rcd->egrbufs.buffers[idx].addr) {
                         rcd->egrbufs.buffers[idx].len =
                                 rcd->egrbufs.rcvtid_size;