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Commit f730cb93 authored by Matthew Wilcox's avatar Matthew Wilcox
Browse files

cls_u32: Convert to idr_alloc_u32 



No real benefit to this classifier, but since we're allocating a u32
anyway, we should use this function.

Signed-off-by: default avatarMatthew Wilcox <mawilcox@microsoft.com>
parent ffdc2d9e

net/sched/cls_u32.c

+10 −13
Original line number Diff line number Diff line
@@ -740,19 +740,17 @@ static int u32_delete(struct tcf_proto *tp, void *arg, bool *last, 


static u32 gen_new_kid(struct tc_u_hnode *ht, u32 htid)

{

	unsigned long idr_index;

	u32 start = htid | 0x800;

	u32 index = htid | 0x800;

	u32 max = htid | 0xFFF;

	u32 min = htid;



	if (idr_alloc_ext(&ht->handle_idr, NULL, &idr_index,

			  start, max + 1, GFP_KERNEL)) {

		if (idr_alloc_ext(&ht->handle_idr, NULL, &idr_index,

				  min + 1, max + 1, GFP_KERNEL))

			return max;

	if (idr_alloc_u32(&ht->handle_idr, NULL, &index, max, GFP_KERNEL)) {

		index = htid + 1;

		if (idr_alloc_u32(&ht->handle_idr, NULL, &index, max,

				 GFP_KERNEL))

			index = max;

	}



	return (u32)idr_index;

	return index;

}



static const struct nla_policy u32_policy[TCA_U32_MAX + 1] = {
@@ -1003,8 +1001,8 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, 
				return -ENOMEM;

			}

		} else {

			err = idr_alloc_ext(&tp_c->handle_idr, ht, NULL,

					    handle, handle + 1, GFP_KERNEL);

			err = idr_alloc_u32(&tp_c->handle_idr, ht, &handle,

					    handle, GFP_KERNEL);

			if (err) {

				kfree(ht);

				return err;
@@ -1060,8 +1058,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, 
			return -EINVAL;

		}

		handle = htid | TC_U32_NODE(handle);

		err = idr_alloc_ext(&ht->handle_idr, NULL, NULL,

				    handle, handle + 1,

		err = idr_alloc_u32(&ht->handle_idr, NULL, &handle, handle,

				    GFP_KERNEL);

		if (err)

			return err;