target/linux/bcm27xx/patches-5.4/950-0727-udmabuf-use-cache_sgt_mapping-option.patch

   1 From d57aecba0cd291e0c28e2c82c3d4bce06c5b5b94 Mon Sep 17 00:00:00 2001
   2 From: Gurchetan Singh <gurchetansingh@chromium.org>
   3 Date: Mon, 2 Dec 2019 17:36:24 -0800
   4 Subject: [PATCH] udmabuf: use cache_sgt_mapping option
   5
   6 Commit bc7a71da43b48333f84c6534ab43d240e34cf9eb uptream.
   7
   8 The GEM prime helpers do it, so should we. It's also possible to make
   9 it optional later.
  10
  11 Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
  12 Link: http://patchwork.freedesktop.org/patch/msgid/20191203013627.85991-1-gurchetansingh@chromium.org
  13 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
  14 ---
  15  drivers/dma-buf/udmabuf.c | 9 +++++----
  16  1 file changed, 5 insertions(+), 4 deletions(-)
  17
  18 --- a/drivers/dma-buf/udmabuf.c
  19 +++ b/drivers/dma-buf/udmabuf.c
  20 @@ -94,10 +94,11 @@ static void release_udmabuf(struct dma_b
  21  }
  22
  23  static const struct dma_buf_ops udmabuf_ops = {
  24 -       .map_dma_buf      = map_udmabuf,
  25 -       .unmap_dma_buf    = unmap_udmabuf,
  26 -       .release          = release_udmabuf,
  27 -       .mmap             = mmap_udmabuf,
  28 +       .cache_sgt_mapping = true,
  29 +       .map_dma_buf       = map_udmabuf,
  30 +       .unmap_dma_buf     = unmap_udmabuf,
  31 +       .release           = release_udmabuf,
  32 +       .mmap              = mmap_udmabuf,
  33  };
  34
  35  #define SEALS_WANTED (F_SEAL_SHRINK)