netdev - Re: FW: [PATCH][I/OAT]: Remove duplicate assignation in dma_skb_copy_datagram

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Date:	Fri, 29 Feb 2008 10:23:13 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	"Sosnowski, Maciej" <maciej.sosnowski@...el.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org, Brice.Goglin@...ia.fr,
	"Nelson, Shannon" <shannon.nelson@...el.com>
Subject: Re: FW: [PATCH][I/OAT]: Remove duplicate assignation in
	dma_skb_copy_datagram_iovec

Subject: net_dma: Remove duplicate assignment in dma_skb_copy_datagram_iovec

From: Brice Goglin <Brice.Goglin@...ia.fr>

No need to compute copy twice in the frags loop in
dma_skb_copy_datagram_iovec().

Signed-off-by: Brice Goglin <Brice.Goglin@...ia.fr>
Acked-by: Shannon Nelson <shannon.nelson@...el.com>
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@...el.com>
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
---
Hi Maciej,

Please be careful about maintaining attribution of the patch.

Regards,
Dan

 net/core/user_dma.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


diff --git a/net/core/user_dma.c b/net/core/user_dma.c
index 0ad1cd5..c77aff9 100644
--- a/net/core/user_dma.c
+++ b/net/core/user_dma.c
@@ -75,7 +75,7 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
 
 		end = start + skb_shinfo(skb)->frags[i].size;
 		copy = end - offset;
-		if ((copy = end - offset) > 0) {
+		if (copy > 0) {
 			skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 			struct page *page = frag->page;
 


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