Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

[firefly-linux-kernel-4.4.55.git] / net / core / net-sysfs.c

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 999341244434309b6275fe6230a9f1bf7c57d2b2..f2aa73bfb0e474f789b42e9a858080d3780ca426 100644 (file)
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -614,8 +614,7 @@ static ssize_t show_rps_map(struct netdev_rx_queue *queue,
 {
        struct rps_map *map;
        cpumask_var_t mask;
-       size_t len = 0;
-       int i;
+       int i, len;
 
        if (!zalloc_cpumask_var(&mask, GFP_KERNEL))
                return -ENOMEM;
@@ -626,17 +625,11 @@ static ssize_t show_rps_map(struct netdev_rx_queue *queue,
                for (i = 0; i < map->len; i++)
                        cpumask_set_cpu(map->cpus[i], mask);
 
-       len += cpumask_scnprintf(buf + len, PAGE_SIZE, mask);
-       if (PAGE_SIZE - len < 3) {
-               rcu_read_unlock();
-               free_cpumask_var(mask);
-               return -EINVAL;
-       }
+       len = snprintf(buf, PAGE_SIZE, "%*pb\n", cpumask_pr_args(mask));
        rcu_read_unlock();
-
        free_cpumask_var(mask);
-       len += sprintf(buf + len, "\n");
-       return len;
+
+       return len < PAGE_SIZE ? len : -EINVAL;
 }
 
 static ssize_t store_rps_map(struct netdev_rx_queue *queue,
@@ -1090,8 +1083,7 @@ static ssize_t show_xps_map(struct netdev_queue *queue,
        struct xps_dev_maps *dev_maps;
        cpumask_var_t mask;
        unsigned long index;
-       size_t len = 0;
-       int i;
+       int i, len;
 
        if (!zalloc_cpumask_var(&mask, GFP_KERNEL))
                return -ENOMEM;
@@ -1117,15 +1109,9 @@ static ssize_t show_xps_map(struct netdev_queue *queue,
        }
        rcu_read_unlock();
 
-       len += cpumask_scnprintf(buf + len, PAGE_SIZE, mask);
-       if (PAGE_SIZE - len < 3) {
-               free_cpumask_var(mask);
-               return -EINVAL;
-       }
-
+       len = snprintf(buf, PAGE_SIZE, "%*pb\n", cpumask_pr_args(mask));
        free_cpumask_var(mask);
-       len += sprintf(buf + len, "\n");
-       return len;
+       return len < PAGE_SIZE ? len : -EINVAL;
 }
 
 static ssize_t store_xps_map(struct netdev_queue *queue,