openwrt/target/linux/apm821xx/patches-4.14/023-0005-cross-tree-phase-out-dma_zalloc_coherent.patch
Christian Lamparter b2b1265a1d apm821xx: backport accepted linux-crypto patches
Rather than wait until the patches hit vanilla and
get backported via the stable kernel, this patch
patches the crypto4xx driver with the latest fixes
from the upstream linux-crypto tree.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2019-06-01 19:47:14 +02:00

41 lines
1.4 KiB
Diff

From 750afb08ca71310fcf0c4e2cb1565c63b8235b60 Mon Sep 17 00:00:00 2001
From: Luis Chamberlain <mcgrof@kernel.org>
Date: Fri, 4 Jan 2019 09:23:09 +0100
Subject: [PATCH 05/15] 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>
---
drivers/crypto/amcc/crypto4xx_core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -283,9 +283,9 @@ static u32 crypto4xx_put_pd_to_pdr(struc
*/
static u32 crypto4xx_build_gdr(struct crypto4xx_device *dev)
{
- dev->gdr = dma_zalloc_coherent(dev->core_dev->device,
- sizeof(struct ce_gd) * PPC4XX_NUM_GD,
- &dev->gdr_pa, GFP_ATOMIC);
+ dev->gdr = dma_alloc_coherent(dev->core_dev->device,
+ sizeof(struct ce_gd) * PPC4XX_NUM_GD,
+ &dev->gdr_pa, GFP_ATOMIC);
if (!dev->gdr)
return -ENOMEM;