Sat, Jan 06, 2018 at 12:09:19AM CET, [email protected] wrote:
>From: Jiri Pirko <[email protected]>
>
>So far, there was possible only to register a single filter chain
>pointer to block->chain[0]. However, when the blocks will get shareable,
>we need to allow multiple filter chain pointers registration.
>
>Signed-off-by: Jiri Pirko <[email protected]>
>---
[...]
>+static int tcf_block_insert(struct tcf_block *block, struct net *net,
>+ u32 block_index, struct netlink_ext_ack *extack)
>+{
>+ struct tcf_net *tn = net_generic(net, tcf_net_id);
>+ int idr_start;
>+ int idr_end;
>+ int index;
>+
>+ if (block_index >= INT_MAX) {
>+ NL_SET_ERR_MSG(extack, "Invalid block index value (>=
>INT_MAX)");
>+ return -EINVAL;
>+ }
>+ idr_start = block_index ? block_index : 1;
>+ idr_end = block_index ? block_index + 1 : INT_MAX;
>+
>+ index = idr_alloc(&tn->idr, block, idr_start, idr_end, GFP_KERNEL);
Oh, I have to do idr_alloc_ext
