tools: mkimage: provide dtc path during build
[openwrt/openwrt.git] / target / linux / mvebu / patches-4.4 / 039-net-mvneta-Use-on_each_cpu-when-possible.patch
1 From: Gregory CLEMENT <gregory.clement@free-electrons.com>
2 Date: Thu, 4 Feb 2016 22:09:25 +0100
3 Subject: [PATCH] net: mvneta: Use on_each_cpu when possible
4
5 Instead of using a for_each_* loop in which we just call the
6 smp_call_function_single macro, it is more simple to directly use the
7 on_each_cpu macro. Moreover, this macro ensures that the calls will be
8 done all at once.
9
10 Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
11 Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
12 Signed-off-by: David S. Miller <davem@davemloft.net>
13 ---
14
15 --- a/drivers/net/ethernet/marvell/mvneta.c
16 +++ b/drivers/net/ethernet/marvell/mvneta.c
17 @@ -2557,7 +2557,7 @@ static void mvneta_percpu_mask_interrupt
18
19 static void mvneta_start_dev(struct mvneta_port *pp)
20 {
21 - unsigned int cpu;
22 + int cpu;
23
24 mvneta_max_rx_size_set(pp, pp->pkt_size);
25 mvneta_txq_max_tx_size_set(pp, pp->pkt_size);
26 @@ -2573,9 +2573,8 @@ static void mvneta_start_dev(struct mvne
27 }
28
29 /* Unmask interrupts. It has to be done from each CPU */
30 - for_each_online_cpu(cpu)
31 - smp_call_function_single(cpu, mvneta_percpu_unmask_interrupt,
32 - pp, true);
33 + on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true);
34 +
35 mvreg_write(pp, MVNETA_INTR_MISC_MASK,
36 MVNETA_CAUSE_PHY_STATUS_CHANGE |
37 MVNETA_CAUSE_LINK_CHANGE |
38 @@ -2995,7 +2994,7 @@ static int mvneta_percpu_notifier(struct
39 static int mvneta_open(struct net_device *dev)
40 {
41 struct mvneta_port *pp = netdev_priv(dev);
42 - int ret, cpu;
43 + int ret;
44
45 pp->pkt_size = MVNETA_RX_PKT_SIZE(pp->dev->mtu);
46 pp->frag_size = SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(pp->pkt_size)) +
47 @@ -3028,9 +3027,7 @@ static int mvneta_open(struct net_device
48 /* Enable per-CPU interrupt on all the CPU to handle our RX
49 * queue interrupts
50 */
51 - for_each_online_cpu(cpu)
52 - smp_call_function_single(cpu, mvneta_percpu_enable,
53 - pp, true);
54 + on_each_cpu(mvneta_percpu_enable, pp, true);
55
56
57 /* Register a CPU notifier to handle the case where our CPU
58 @@ -3317,9 +3314,7 @@ static int mvneta_config_rss(struct mvn
59
60 netif_tx_stop_all_queues(pp->dev);
61
62 - for_each_online_cpu(cpu)
63 - smp_call_function_single(cpu, mvneta_percpu_mask_interrupt,
64 - pp, true);
65 + on_each_cpu(mvneta_percpu_mask_interrupt, pp, true);
66
67 /* We have to synchronise on the napi of each CPU */
68 for_each_online_cpu(cpu) {