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From: Neil Horman <nhorman@tuxdriver.com>
To: "Sylvain 'ythier' Hitier" <sylvain.hitier@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
	Linux Kernel list <linux-kernel@vger.kernel.org>,
	Meelis Roos <mroos@linux.ee>
Subject: Re: [PATCH] 3c59x: fix bad split of cpu_to_le32(pci_map_single())
Date: Wed, 24 Sep 2014 06:13:59 -0400	[thread overview]
Message-ID: <20140924101359.GC4446@hmsreliant.think-freely.org> (raw)
In-Reply-To: <20140924093021.GA7929@erable>

On Wed, Sep 24, 2014 at 09:30:21AM +0000, Sylvain 'ythier' Hitier wrote:
> Author: Sylvain "ythier" Hitier <sylvain.hitier@gmail.com>
> Date:   Wed Sep 24 09:22:16 2014 +0000
> 
>         3c59x: fix bad split of cpu_to_le32(pci_map_single())
>     
>         Change the #else branch like the #if DO_ZEROCOPY branch was changed.
>     
>         Fixes: 6f2b6a3005b2c34c39f207a87667564f64f2f91a
>           # 3c59x: Add dma error checking and recovery
>     
>         Signed-off-by: Sylvain "ythier" Hitier <sylvain.hitier@gmail.com>
> 
> diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
> index 8ca49f04..0a3108b3 100644
> --- a/drivers/net/ethernet/3com/3c59x.c
> +++ b/drivers/net/ethernet/3com/3c59x.c
> @@ -2214,7 +2214,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
>  		}
>  	}
>  #else
> -	dma_addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE));
> +	dma_addr = pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE);
>  	if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr))
>  		goto out_dma_err;
>  	vp->tx_ring[entry].addr = cpu_to_le32(dma_addr);
> 
> 
> 
> Regards,
> Sylvain "ythier" Hitier
> 
NAK, this isn't how the other side of that was changed.  I added an assignmnt of
the dma_addr to check mapping errors, but still used cpu_to_le32 when assigning
dma_addr to tx_ring[entry].addr.  No change is needed here as far as I see.
Neil

> -- 
> Business is about being busy, not being rich...
> Lived 777 days in a Debian package => http://en.wikipedia.org/wiki/Apt,_Vaucluse
> There's THE room for ideals in this mechanical place!
> 

  reply	other threads:[~2014-09-24 10:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-24  9:30 Sylvain 'ythier' Hitier
2014-09-24 10:13 ` Neil Horman [this message]
2014-09-24 10:16 ` Neil Horman
2014-09-25 15:15   ` [PATCH v2] " Sylvain 'ythier' Hitier
2014-09-25 16:02     ` Neil Horman
2014-09-29 19:37     ` David Miller
2014-09-29 19:45       ` Sylvain 'ythier' Hitier
2014-09-29 20:08         ` David Miller
2014-09-29 21:26           ` Sylvain 'ythier' Hitier

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