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Message-ID:
<TYBPR01MB5341A7F036286C8F6F5BFF99D88BA@TYBPR01MB5341.jpnprd01.prod.outlook.com>
Date: Thu, 7 Dec 2023 00:23:56 +0000
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
To: Paolo Abeni <pabeni@...hat.com>, "s.shtylyov@....ru" <s.shtylyov@....ru>,
"davem@...emloft.net" <davem@...emloft.net>, "edumazet@...gle.com"
<edumazet@...gle.com>, "kuba@...nel.org" <kuba@...nel.org>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>
Subject: RE: [PATCH net-next v3 8/9] net: rswitch: Add jumbo frames handling
for TX
Hello Paolo,
> From: Paolo Abeni, Sent: Wednesday, December 6, 2023 7:21 PM
>
> On Mon, 2023-12-04 at 10:20 +0900, Yoshihiro Shimoda wrote:
> > @@ -1647,25 +1676,32 @@ static netdev_tx_t rswitch_start_xmit(struct sk_buff *skb, struct net_device *nd
> > if (skb_put_padto(skb, ETH_ZLEN))
> > return ret;
> >
> > - dma_addr = dma_map_single(ndev->dev.parent, skb->data, skb->len, DMA_TO_DEVICE);
> > - if (dma_mapping_error(ndev->dev.parent, dma_addr))
> > + dma_addr_orig = dma_map_single(ndev->dev.parent, skb->data, skb->len, DMA_TO_DEVICE);
> > + if (dma_mapping_error(ndev->dev.parent, dma_addr_orig))
> > goto err_kfree;
> >
> > gq->skbs[gq->cur] = skb;
> > gq->unmap_addrs[gq->cur] = dma_addr;
>
> Here 'dma_addr' is still used uninitialized. I guess you should use
> 'dma_addr_orig' even here.
Oops! I should fix it. I'll make v4 patch. Thank you for your review!
Best regards,
Yoshihiro Shimoda
> Cheers,
>
> Paolo
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