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, 9 insertions, 18 deletions

diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index b84356e1a4c1..96897a91fb0a 100644
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -1453,12 +1453,9 @@ int sdma_init(struct hfi1_devdata *dd, u8 port)
                 timer_setup(&sde->err_progress_check_timer,
                             sdma_err_progress_check, 0);
 
-                sde->descq = dma_zalloc_coherent(
-                        &dd->pcidev->dev,
-                        descq_cnt * sizeof(u64[2]),
-                        &sde->descq_phys,
-                        GFP_KERNEL
-                );
+                sde->descq = dma_alloc_coherent(&dd->pcidev->dev,
+                                                descq_cnt * sizeof(u64[2]),
+                                                &sde->descq_phys, GFP_KERNEL);
                 if (!sde->descq)
                         goto bail;
                 sde->tx_ring =
@@ -1471,24 +1468,18 @@ int sdma_init(struct hfi1_devdata *dd, u8 port)
 
         dd->sdma_heads_size = L1_CACHE_BYTES * num_engines;
         /* Allocate memory for DMA of head registers to memory */
-        dd->sdma_heads_dma = dma_zalloc_coherent(
-                &dd->pcidev->dev,
-                dd->sdma_heads_size,
-                &dd->sdma_heads_phys,
-                GFP_KERNEL
-        );
+        dd->sdma_heads_dma = dma_alloc_coherent(&dd->pcidev->dev,
+                                                dd->sdma_heads_size,
+                                                &dd->sdma_heads_phys,
+                                                GFP_KERNEL);
         if (!dd->sdma_heads_dma) {
                 dd_dev_err(dd, "failed to allocate SendDMA head memory\n");
                 goto bail;
         }
 
         /* Allocate memory for pad */
-        dd->sdma_pad_dma = dma_zalloc_coherent(
-                &dd->pcidev->dev,
-                sizeof(u32),
-                &dd->sdma_pad_phys,
-                GFP_KERNEL
-        );
+        dd->sdma_pad_dma = dma_alloc_coherent(&dd->pcidev->dev, sizeof(u32),
+                                              &dd->sdma_pad_phys, GFP_KERNEL);
         if (!dd->sdma_pad_dma) {
                 dd_dev_err(dd, "failed to allocate SendDMA pad memory\n");
                 goto bail;