* [PATCH] i40e: fix wrong index in i40e_xsk_umem_dma_map
@ 2020-06-02 9:12 Li RongQing
2020-06-02 11:26 ` Björn Töpel
0 siblings, 1 reply; 3+ messages in thread
From: Li RongQing @ 2020-06-02 9:12 UTC (permalink / raw)
To: netdev, bpf
Fixes: 0a714186d3c0 "(i40e: add AF_XDP zero-copy Rx support)"
Signed-off-by: Li RongQing <lirongqing@baidu.com>
---
drivers/net/ethernet/intel/i40e/i40e_xsk.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
index 0b7d29192b2c..c926438118ea 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
@@ -37,9 +37,9 @@ static int i40e_xsk_umem_dma_map(struct i40e_vsi *vsi, struct xdp_umem *umem)
out_unmap:
for (j = 0; j < i; j++) {
- dma_unmap_page_attrs(dev, umem->pages[i].dma, PAGE_SIZE,
+ dma_unmap_page_attrs(dev, umem->pages[j].dma, PAGE_SIZE,
DMA_BIDIRECTIONAL, I40E_RX_DMA_ATTR);
- umem->pages[i].dma = 0;
+ umem->pages[j].dma = 0;
}
return -1;
--
2.16.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] i40e: fix wrong index in i40e_xsk_umem_dma_map
2020-06-02 9:12 [PATCH] i40e: fix wrong index in i40e_xsk_umem_dma_map Li RongQing
@ 2020-06-02 11:26 ` Björn Töpel
2020-06-02 12:10 ` 答复: " Li,Rongqing
0 siblings, 1 reply; 3+ messages in thread
From: Björn Töpel @ 2020-06-02 11:26 UTC (permalink / raw)
To: Li RongQing, intel-wired-lan, Netdev; +Cc: bpf, Karlsson, Magnus
On Tue, 2 Jun 2020 at 11:20, Li RongQing <lirongqing@baidu.com> wrote:
>
Li, thanks for the patch! Good catch!
Please add a proper description for the patch. The fix should be added
to the stable branches (5.7 and earlier). Note that this code was
recently removed in favor of the new AF_XDP buffer allocation scheme.
Björn
> Fixes: 0a714186d3c0 "(i40e: add AF_XDP zero-copy Rx support)"
> Signed-off-by: Li RongQing <lirongqing@baidu.com>
> ---
> drivers/net/ethernet/intel/i40e/i40e_xsk.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> index 0b7d29192b2c..c926438118ea 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> @@ -37,9 +37,9 @@ static int i40e_xsk_umem_dma_map(struct i40e_vsi *vsi, struct xdp_umem *umem)
>
> out_unmap:
> for (j = 0; j < i; j++) {
> - dma_unmap_page_attrs(dev, umem->pages[i].dma, PAGE_SIZE,
> + dma_unmap_page_attrs(dev, umem->pages[j].dma, PAGE_SIZE,
> DMA_BIDIRECTIONAL, I40E_RX_DMA_ATTR);
> - umem->pages[i].dma = 0;
> + umem->pages[j].dma = 0;
> }
>
> return -1;
> --
> 2.16.2
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* 答复: [PATCH] i40e: fix wrong index in i40e_xsk_umem_dma_map
2020-06-02 11:26 ` Björn Töpel
@ 2020-06-02 12:10 ` Li,Rongqing
0 siblings, 0 replies; 3+ messages in thread
From: Li,Rongqing @ 2020-06-02 12:10 UTC (permalink / raw)
To: Björn Töpel, intel-wired-lan, Netdev; +Cc: bpf, Karlsson, Magnus
> -----邮件原件-----
> 发件人: Björn Töpel [mailto:bjorn.topel@gmail.com]
> 发送时间: 2020年6月2日 19:27
> 收件人: Li,Rongqing <lirongqing@baidu.com>; intel-wired-lan
> <intel-wired-lan@lists.osuosl.org>; Netdev <netdev@vger.kernel.org>
> 抄送: bpf <bpf@vger.kernel.org>; Karlsson, Magnus
> <magnus.karlsson@intel.com>
> 主题: Re: [PATCH] i40e: fix wrong index in i40e_xsk_umem_dma_map
>
> On Tue, 2 Jun 2020 at 11:20, Li RongQing <lirongqing@baidu.com> wrote:
> >
>
> Li, thanks for the patch! Good catch!
>
> Please add a proper description for the patch. The fix should be added to the
> stable branches (5.7 and earlier). Note that this code was recently removed in
> favor of the new AF_XDP buffer allocation scheme.
>
>
Ok
-LiRongQing
> Björn
>
> > Fixes: 0a714186d3c0 "(i40e: add AF_XDP zero-copy Rx support)"
> > Signed-off-by: Li RongQing <lirongqing@baidu.com>
> > ---
> > drivers/net/ethernet/intel/i40e/i40e_xsk.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> > b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> > index 0b7d29192b2c..c926438118ea 100644
> > --- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> > +++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> > @@ -37,9 +37,9 @@ static int i40e_xsk_umem_dma_map(struct i40e_vsi
> > *vsi, struct xdp_umem *umem)
> >
> > out_unmap:
> > for (j = 0; j < i; j++) {
> > - dma_unmap_page_attrs(dev, umem->pages[i].dma,
> PAGE_SIZE,
> > + dma_unmap_page_attrs(dev, umem->pages[j].dma,
> > + PAGE_SIZE,
> > DMA_BIDIRECTIONAL,
> I40E_RX_DMA_ATTR);
> > - umem->pages[i].dma = 0;
> > + umem->pages[j].dma = 0;
> > }
> >
> > return -1;
> > --
> > 2.16.2
> >
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-06-02 12:26 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-06-02 9:12 [PATCH] i40e: fix wrong index in i40e_xsk_umem_dma_map Li RongQing
2020-06-02 11:26 ` Björn Töpel
2020-06-02 12:10 ` 答复: " Li,Rongqing
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).