Commit bb435b8d authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

[IPV4]: fib_trie: Use const 



Use const where possible and get rid of EXTRACT() macro
that was never used.

Signed-off-by: default avatarStephen Hemmigner <shemminger@osdl.org>
Signed-off-by: default avatarRobert Olsson <robert.olsson@its.uu.se>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2f80b3c8

net/ipv4/fib_trie.c

+2 −5
Original line number Diff line number Diff line
@@ -77,7 +77,6 @@ 
#undef CONFIG_IP_FIB_TRIE_STATS

#define MAX_CHILDS 16384



#define EXTRACT(p, n, str) ((str)<<(p)>>(32-(n)))

#define KEYLENGTH (8*sizeof(t_key))

#define MASK_PFX(k, l) (((l)==0)?0:(k >> (KEYLENGTH-l)) << (KEYLENGTH-l))

#define TKEY_GET_MASK(offset, bits) (((bits)==0)?0:((t_key)(-1) << (KEYLENGTH - bits) >> offset))
@@ -162,10 +161,8 @@ static int trie_debug = 0; 


#define DBG(x...) do { if (trie_debug) printk(x); } while (0)



static int tnode_full(struct tnode *tn, struct node *n);

static void put_child(struct trie *t, struct tnode *tn, int i, struct node *n);

static void tnode_put_child_reorg(struct tnode *tn, int i, struct node *n, int wasfull);

static int tnode_child_length(struct tnode *tn);

static struct node *resize(struct trie *t, struct tnode *tn);

static struct tnode *inflate(struct trie *t, struct tnode *tn);

static struct tnode *halve(struct trie *t, struct tnode *tn);
@@ -188,7 +185,7 @@ static inline struct node *tnode_get_child(struct tnode *tn, int i) 
	return tn->child[i];

}



static inline int tnode_child_length(struct tnode *tn)

static inline int tnode_child_length(const struct tnode *tn)

{

	return 1 << tn->bits;

}
@@ -400,7 +397,7 @@ static void tnode_free(struct tnode *tn) 
 * and no bits are skipped. See discussion in dyntree paper p. 6

 */



static inline int tnode_full(struct tnode *tn, struct node *n)

static inline int tnode_full(const struct tnode *tn, const struct node *n)

{

	if (n == NULL || IS_LEAF(n))

		return 0;