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acl: introduce a macro for bitmask conversion
[dpdk.git]
/
lib
/
librte_acl
/
acl_bld.c
diff --git
a/lib/librte_acl/acl_bld.c
b/lib/librte_acl/acl_bld.c
index
d89c66a
..
4d8a62f
100644
(file)
--- a/
lib/librte_acl/acl_bld.c
+++ b/
lib/librte_acl/acl_bld.c
@@
-1262,19
+1262,9
@@
build_trie(struct acl_build_context *context, struct rte_acl_build_rule *head,
* all higher bits.
*/
uint64_t mask;
* all higher bits.
*/
uint64_t mask;
-
- if (fld->mask_range.u32 == 0) {
- mask = 0;
-
- /*
- * arithmetic right shift for the length of
- * the mask less the msb.
- */
- } else {
- mask = -1 <<
- (rule->config->defs[n].size *
- CHAR_BIT - fld->mask_range.u32);
- }
+ mask = RTE_ACL_MASKLEN_TO_BITMASK(
+ fld->mask_range.u32,
+ rule->config->defs[n].size);
/* gen a mini-trie for this field */
merge = acl_gen_mask_trie(context,
/* gen a mini-trie for this field */
merge = acl_gen_mask_trie(context,