[PATCH 4/12] d80211: simplify classify_1d
From: Jiri Benc <hidden>
Date: 2007-01-03 18:05:12
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The switch in classify_1d can be simplified to a bit operation. Signed-off-by: Jiri Benc <redacted> --- 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