diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2017-02-02 15:49:24 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-03 11:14:50 -0500 |
| commit | ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5 (patch) | |
| tree | 651a0fb76ff042dcfc1bfcd1405b432f03689a71 /drivers/net | |
| parent | ceef438d613f6d496ca84bad2ddf21786ee0e9f6 (diff) | |
| download | linux-ff3edc9b8efc8200c25f3a5adfb1c1de0a882dc5.tar.bz2 | |
hns_enet: use cpumask_var_t for on-stack mask
On large SMP builds, we can run into a build warning:
drivers/net/ethernet/hisilicon/hns/hns_enet.c: In function 'hns_set_irq_affinity.isra.27':
drivers/net/ethernet/hisilicon/hns/hns_enet.c:1242:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
The solution here is to use cpumask_var_t, which can use dynamic
allocation when CONFIG_CPUMASK_OFFSTACK is enabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_enet.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index f7b75e96c1c3..fefe371e5907 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -1202,43 +1202,48 @@ static void hns_set_irq_affinity(struct hns_nic_priv *priv) struct hns_nic_ring_data *rd; int i; int cpu; - cpumask_t mask; + cpumask_var_t mask; + + if (!alloc_cpumask_var(&mask, GFP_KERNEL)) + return; /*diffrent irq banlance for 16core and 32core*/ if (h->q_num == num_possible_cpus()) { for (i = 0; i < h->q_num * 2; i++) { rd = &priv->ring_data[i]; if (cpu_online(rd->queue_index)) { - cpumask_clear(&mask); + cpumask_clear(mask); cpu = rd->queue_index; - cpumask_set_cpu(cpu, &mask); + cpumask_set_cpu(cpu, mask); (void)irq_set_affinity_hint(rd->ring->irq, - &mask); + mask); } } } else { for (i = 0; i < h->q_num; i++) { rd = &priv->ring_data[i]; if (cpu_online(rd->queue_index * 2)) { - cpumask_clear(&mask); + cpumask_clear(mask); cpu = rd->queue_index * 2; - cpumask_set_cpu(cpu, &mask); + cpumask_set_cpu(cpu, mask); (void)irq_set_affinity_hint(rd->ring->irq, - &mask); + mask); } } for (i = h->q_num; i < h->q_num * 2; i++) { rd = &priv->ring_data[i]; if (cpu_online(rd->queue_index * 2 + 1)) { - cpumask_clear(&mask); + cpumask_clear(mask); cpu = rd->queue_index * 2 + 1; - cpumask_set_cpu(cpu, &mask); + cpumask_set_cpu(cpu, mask); (void)irq_set_affinity_hint(rd->ring->irq, - &mask); + mask); } } } + + free_cpumask_var(mask); } static int hns_nic_init_irq(struct hns_nic_priv *priv) |