* [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()'
@ 2021-04-04 12:42 Christophe JAILLET
2021-04-04 12:42 ` [PATCH 2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding it Christophe JAILLET
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Christophe JAILLET @ 2021-04-04 12:42 UTC (permalink / raw)
To: aelior, GR-everest-linux-l2, davem, kuba
Cc: netdev, linux-kernel, kernel-janitors, Christophe JAILLET
This ++ is confusing. It looks duplicated with the one already performed in
'skb_fill_page_desc()'.
In fact, it is harmless. 'nr_frags' is written twice with the same value.
Once, because of the nr_frags++, and once because of the 'nr_frags = i + 1'
in 'skb_fill_page_desc()'.
So axe this post-increment to avoid confusion.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/net/ethernet/qlogic/qede/qede_fp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index 102d0e0808d5..ee3e45e38cb7 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -1209,7 +1209,7 @@ static int qede_rx_build_jumbo(struct qede_dev *edev,
dma_unmap_page(rxq->dev, bd->mapping,
PAGE_SIZE, DMA_FROM_DEVICE);
- skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags++,
+ skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
bd->data, rxq->rx_headroom, cur_size);
skb->truesize += PAGE_SIZE;
--
2.27.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding it
2021-04-04 12:42 [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()' Christophe JAILLET
@ 2021-04-04 12:42 ` Christophe JAILLET
2021-04-05 10:07 ` [EXT] " Manish Chopra
2021-04-05 10:01 ` [EXT] [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()' Manish Chopra
2021-04-05 20:00 ` patchwork-bot+netdevbpf
2 siblings, 1 reply; 5+ messages in thread
From: Christophe JAILLET @ 2021-04-04 12:42 UTC (permalink / raw)
To: aelior, GR-everest-linux-l2, davem, kuba
Cc: netdev, linux-kernel, kernel-janitors, Christophe JAILLET
Some lines of code can be merged into an equivalent 'skb_add_rx_frag()'
call which is less verbose.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/net/ethernet/qlogic/qede/qede_fp.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index ee3e45e38cb7..8e150dd4f899 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -1209,12 +1209,9 @@ static int qede_rx_build_jumbo(struct qede_dev *edev,
dma_unmap_page(rxq->dev, bd->mapping,
PAGE_SIZE, DMA_FROM_DEVICE);
- skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
- bd->data, rxq->rx_headroom, cur_size);
+ skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, bd->data,
+ rxq->rx_headroom, cur_size, PAGE_SIZE);
- skb->truesize += PAGE_SIZE;
- skb->data_len += cur_size;
- skb->len += cur_size;
pkt_len -= cur_size;
}
--
2.27.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* RE: [EXT] [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()'
2021-04-04 12:42 [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()' Christophe JAILLET
2021-04-04 12:42 ` [PATCH 2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding it Christophe JAILLET
@ 2021-04-05 10:01 ` Manish Chopra
2021-04-05 20:00 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 5+ messages in thread
From: Manish Chopra @ 2021-04-05 10:01 UTC (permalink / raw)
To: Christophe JAILLET, Ariel Elior, GR-everest-linux-l2,
davem@davemloft.net, kuba@kernel.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
> -----Original Message-----
> From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> Sent: Sunday, April 4, 2021 6:13 PM
> To: Ariel Elior <aelior@marvell.com>; GR-everest-linux-l2 <GR-everest-linux-
> l2@marvell.com>; davem@davemloft.net; kuba@kernel.org
> Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; kernel-
> janitors@vger.kernel.org; Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> Subject: [EXT] [PATCH 1/2] qede: Remove a erroneous ++ in
> 'qede_rx_build_jumbo()'
>
> External Email
>
> ----------------------------------------------------------------------
> This ++ is confusing. It looks duplicated with the one already performed in
> 'skb_fill_page_desc()'.
>
> In fact, it is harmless. 'nr_frags' is written twice with the same value.
> Once, because of the nr_frags++, and once because of the 'nr_frags = i + 1'
> in 'skb_fill_page_desc()'.
>
> So axe this post-increment to avoid confusion.
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> drivers/net/ethernet/qlogic/qede/qede_fp.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c
> b/drivers/net/ethernet/qlogic/qede/qede_fp.c
> index 102d0e0808d5..ee3e45e38cb7 100644
> --- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
> +++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
> @@ -1209,7 +1209,7 @@ static int qede_rx_build_jumbo(struct qede_dev
> *edev,
> dma_unmap_page(rxq->dev, bd->mapping,
> PAGE_SIZE, DMA_FROM_DEVICE);
>
> - skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags++,
> + skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
> bd->data, rxq->rx_headroom, cur_size);
>
> skb->truesize += PAGE_SIZE;
> --
> 2.27.0
Acked-by: Manish Chopra <manishc@marvell.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
* RE: [EXT] [PATCH 2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding it
2021-04-04 12:42 ` [PATCH 2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding it Christophe JAILLET
@ 2021-04-05 10:07 ` Manish Chopra
0 siblings, 0 replies; 5+ messages in thread
From: Manish Chopra @ 2021-04-05 10:07 UTC (permalink / raw)
To: Christophe JAILLET, Ariel Elior, GR-everest-linux-l2,
davem@davemloft.net, kuba@kernel.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
> -----Original Message-----
> From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> Sent: Sunday, April 4, 2021 6:13 PM
> To: Ariel Elior <aelior@marvell.com>; GR-everest-linux-l2 <GR-everest-linux-
> l2@marvell.com>; davem@davemloft.net; kuba@kernel.org
> Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; kernel-
> janitors@vger.kernel.org; Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> Subject: [EXT] [PATCH 2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding
> it
>
> External Email
>
> ----------------------------------------------------------------------
> Some lines of code can be merged into an equivalent 'skb_add_rx_frag()'
> call which is less verbose.
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> drivers/net/ethernet/qlogic/qede/qede_fp.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c
> b/drivers/net/ethernet/qlogic/qede/qede_fp.c
> index ee3e45e38cb7..8e150dd4f899 100644
> --- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
> +++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
> @@ -1209,12 +1209,9 @@ static int qede_rx_build_jumbo(struct qede_dev
> *edev,
> dma_unmap_page(rxq->dev, bd->mapping,
> PAGE_SIZE, DMA_FROM_DEVICE);
>
> - skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
> - bd->data, rxq->rx_headroom, cur_size);
> + skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, bd->data,
> + rxq->rx_headroom, cur_size, PAGE_SIZE);
>
> - skb->truesize += PAGE_SIZE;
> - skb->data_len += cur_size;
> - skb->len += cur_size;
> pkt_len -= cur_size;
> }
>
> --
> 2.27.0
Thank you Christophe.
Acked-by: Manish Chopra <manishc@marvell.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()'
2021-04-04 12:42 [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()' Christophe JAILLET
2021-04-04 12:42 ` [PATCH 2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding it Christophe JAILLET
2021-04-05 10:01 ` [EXT] [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()' Manish Chopra
@ 2021-04-05 20:00 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 5+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-04-05 20:00 UTC (permalink / raw)
To: Christophe JAILLET
Cc: aelior, GR-everest-linux-l2, davem, kuba, netdev, linux-kernel,
kernel-janitors
Hello:
This series was applied to netdev/net-next.git (refs/heads/master):
On Sun, 4 Apr 2021 14:42:44 +0200 you wrote:
> This ++ is confusing. It looks duplicated with the one already performed in
> 'skb_fill_page_desc()'.
>
> In fact, it is harmless. 'nr_frags' is written twice with the same value.
> Once, because of the nr_frags++, and once because of the 'nr_frags = i + 1'
> in 'skb_fill_page_desc()'.
>
> [...]
Here is the summary with links:
- [1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()'
https://git.kernel.org/netdev/net-next/c/1ec3d02f9cdf
- [2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding it
https://git.kernel.org/netdev/net-next/c/7190e9d8e131
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 5+ messages in thread
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2021-04-04 12:42 [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()' Christophe JAILLET
2021-04-04 12:42 ` [PATCH 2/2] qede: Use 'skb_add_rx_frag()' instead of hand coding it Christophe JAILLET
2021-04-05 10:07 ` [EXT] " Manish Chopra
2021-04-05 10:01 ` [EXT] [PATCH 1/2] qede: Remove a erroneous ++ in 'qede_rx_build_jumbo()' Manish Chopra
2021-04-05 20:00 ` patchwork-bot+netdevbpf
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