Re: [PATCH net-next 2/3] net: constify page_is_pfmemalloc() argument at call sites

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On Mon, 25 Jan 2021, Alexander Lobakin wrote:

> Constify "page" argument for page_is_pfmemalloc() users where applicable.
> 
> Signed-off-by: Alexander Lobakin <alobakin@xxxxx>
> ---
>  drivers/net/ethernet/hisilicon/hns3/hns3_enet.c   | 2 +-
>  drivers/net/ethernet/intel/fm10k/fm10k_main.c     | 2 +-
>  drivers/net/ethernet/intel/i40e/i40e_txrx.c       | 2 +-
>  drivers/net/ethernet/intel/iavf/iavf_txrx.c       | 2 +-
>  drivers/net/ethernet/intel/ice/ice_txrx.c         | 2 +-
>  drivers/net/ethernet/intel/igb/igb_main.c         | 2 +-
>  drivers/net/ethernet/intel/igc/igc_main.c         | 2 +-
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c     | 2 +-
>  drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +-
>  drivers/net/ethernet/mellanox/mlx5/core/en_rx.c   | 2 +-
>  include/linux/skbuff.h                            | 4 ++--
>  11 files changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> index 512080640cbc..0f8e962b5010 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> @@ -2800,7 +2800,7 @@ static void hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
>  	writel(i, ring->tqp->io_base + HNS3_RING_RX_RING_HEAD_REG);
>  }
>  
> -static bool hns3_page_is_reusable(struct page *page)
> +static bool hns3_page_is_reusable(const struct page *page)
>  {
>  	return page_to_nid(page) == numa_mem_id() &&
>  		!page_is_pfmemalloc(page);

Hi Alexander,

All of these functions appear to be doing the same thing, would it make 
sense to simply add this to a header file and remove all the code 
duplication as well?



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