Messages in this thread | | | Date | Thu, 18 Jun 2020 16:35:45 -0700 | From | Jakub Kicinski <> | Subject | Re: [PATCH 2/5] net: hns3: pointer type of buffer should be void |
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On Thu, 18 Jun 2020 13:02:08 +1200 Barry Song wrote: > Move the type of buffer address from unsigned char to void > > Signed-off-by: Barry Song <song.bao.hua@hisilicon.com> > --- > drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 2 +- > drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c > index 1817d7f2e5f6..61b5a849b162 100644 > --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c > +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c > @@ -3070,7 +3070,7 @@ static int hns3_handle_rx_bd(struct hns3_enet_ring *ring) > return -ENXIO; > > if (!skb) > - ring->va = (unsigned char *)desc_cb->buf + desc_cb->page_offset; > + ring->va = desc_cb->buf + desc_cb->page_offset; > > /* Prefetch first cache line of first page > * Idea is to cache few bytes of the header of the packet. Our L1 Cache > diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h > index 66cd4395f781..9f64077ee834 100644 > --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h > +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h > @@ -407,7 +407,7 @@ struct hns3_enet_ring { > > u32 pull_len; /* head length for current packet */ > u32 frag_num; > - unsigned char *va; /* first buffer address for current packet */ > + void *va; /* first buffer address for current packet */ > > u32 flag; /* ring attribute */ >
I think void pointer arithmetic is questionable in the eyes of the C standard. But I'm not sure about kernel C.
Otherwise series looks good to me.
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