linux-kernel - [PATCH 14/17] cls_u32: Convert to idr_alloc

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Date:   Tue, 28 Nov 2017 13:33:09 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Matthew Wilcox <mawilcox@...rosoft.com>,
        Chris Mi <chrism@...lanox.com>, Jiri Pirko <jiri@...lanox.com>,
        "David S . Miller" <davem@...emloft.net>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Eric Biggers <ebiggers@...gle.com>,
        Lai Jiangshan <laijs@...fujitsu.com>,
        Tejun Heo <tj@...nel.org>, Rehas Sachdeva <aquannie@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 14/17] cls_u32: Convert to idr_alloc_u32

From: Matthew Wilcox <mawilcox@...rosoft.com>

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

Signed-off-by: Matthew Wilcox <mawilcox@...rosoft.com>
---
 net/sched/cls_u32.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index e65b47483dc0..2fede6a55d04 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -970,8 +970,8 @@ 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;
@@ -1020,8 +1020,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
 		if (TC_U32_HTID(handle) && TC_U32_HTID(handle^htid))
 			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;
-- 
2.15.0