Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f0b5a0dcf125ce43855961ef4f965a91112bea23
Commit: f0b5a0dcf125ce43855961ef4f965a91112bea23
Parent: 4cec72c890d3a465eed08c24a4a2bfe25650318f
Author: Eric Dumazet <[EMAIL PROTECTED]>
AuthorDate: Tue Jan 8 23:54:43 2008 -0800
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 15:01:06 2008 -0800
[VLAN]: Avoid expensive divides
We can avoid divides (as seen with CONFIG_CC_OPTIMIZE_FOR_SIZE=y on
x86) changing vlan_group_get_device()/vlan_group_set_device() id
parameter from signed to unsigned.
Signed-off-by: Eric Dumazet <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
include/linux/if_vlan.h | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 976d4b1..4562105 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -81,14 +81,16 @@ struct vlan_group {
struct rcu_head rcu;
};
-static inline struct net_device *vlan_group_get_device(struct vlan_group *vg,
int vlan_id)
+static inline struct net_device *vlan_group_get_device(struct vlan_group *vg,
+ unsigned int vlan_id)
{
struct net_device **array;
array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN];
return array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN];
}
-static inline void vlan_group_set_device(struct vlan_group *vg, int vlan_id,
+static inline void vlan_group_set_device(struct vlan_group *vg,
+ unsigned int vlan_id,
struct net_device *dev)
{
struct net_device **array;
-
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