pci_alloc_persistent calls dma_alloc_coherent directly.
In commit af7ddd8a627c
("Merge tag 'dma-mapping-4.21' of 
git://git.infradead.org/users/hch/dma-mapping"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <[email protected]>
---
 drivers/net/ethernet/mellanox/mlxsw/pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c 
b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index b40455f8293d..be310ac0883a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -835,7 +835,6 @@ static int mlxsw_pci_queue_init(struct mlxsw_pci 
*mlxsw_pci, char *mbox,
                                             &mem_item->mapaddr);
        if (!mem_item->buf)
                return -ENOMEM;
-       memset(mem_item->buf, 0, mem_item->size);
 
        q->elem_info = kcalloc(q->count, sizeof(*q->elem_info), GFP_KERNEL);
        if (!q->elem_info) {
-- 
2.11.0

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