target/linux/generic/backport-5.15/730-15-v6.3-net-ethernet-mtk_wed-No-need-to-clear-memory-after-a.patch

   1 From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
   2 Date: Sun, 12 Feb 2023 07:51:51 +0100
   3 Subject: [PATCH] net: ethernet: mtk_wed: No need to clear memory after a
   4  dma_alloc_coherent() call
   5
   6 dma_alloc_coherent() already clears the allocated memory, there is no need
   7 to explicitly call memset().
   8
   9 Moreover, it is likely that the size in the memset() is incorrect and
  10 should be "size * sizeof(*ring->desc)".
  11
  12 Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
  13 Link: https://lore.kernel.org/r/d5acce7dd108887832c9719f62c7201b4c83b3fb.1676184599.git.christophe.jaillet@wanadoo.fr
  14 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  15 ---
  16
  17 --- a/drivers/net/ethernet/mediatek/mtk_wed.c
  18 +++ b/drivers/net/ethernet/mediatek/mtk_wed.c
  19 @@ -779,7 +779,6 @@ mtk_wed_rro_ring_alloc(struct mtk_wed_de
  20
  21         ring->desc_size = sizeof(*ring->desc);
  22         ring->size = size;
  23 -       memset(ring->desc, 0, size);
  24
  25         return 0;
  26  }