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Date: Wed, 3 Jan 2007 19:05:12 +0100 (CET)
From: Jiri Benc <jbenc@...e.cz>
To: "John W. Linville" <linville@...driver.com>
Cc: netdev@...r.kernel.org
Subject: [PATCH 4/12] d80211: simplify classify_1d
The switch in classify_1d can be simplified to a bit operation.
Signed-off-by: Jiri Benc <jbenc@...e.cz>
---
net/d80211/wme.c | 19 ++-----------------
1 files changed, 2 insertions(+), 17 deletions(-)
e874890656210a235fbcfe0935717f86e5d179d9
diff --git a/net/d80211/wme.c b/net/d80211/wme.c
index f26fe6c..0624ad8 100644
--- a/net/d80211/wme.c
+++ b/net/d80211/wme.c
@@ -129,24 +129,9 @@ #endif /* CONFIG_NET_SCHED */
ip = (struct iphdr *) (skb->data + offset);
dscp = ip->tos & 0xfc;
- switch (dscp) {
- case 0x20:
- return 1;
- case 0x40:
- return 2;
- case 0x60:
- return 3;
- case 0x80:
- return 4;
- case 0xa0:
- return 5;
- case 0xc0:
- return 6;
- case 0xe0:
- return 7;
- default:
+ if (dscp & 0x1c)
return 0;
- }
+ return dscp >> 5;
}
--
1.3.0
-
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