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net-sysfs: Switch to bitmap_zalloc() 

Switch to bitmap_zalloc() to show clearly what we are allocating.
Besides that it returns pointer of bitmap type instead of opaque void *.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andy Shevchenko 2019-03-04 11:48:56 +02:00 committed by David S. Miller
parent 214fa1c437
commit 29ca1c5a4b
1 changed files with 5 additions and 7 deletions
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12
net/core/net-sysfs.c
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@ -1336,8 +1336,7 @@ static ssize_t xps_rxqs_show(struct netdev_queue *queue, char *buf)
if (tc < 0)
return -EINVAL;
}
mask = kcalloc(BITS_TO_LONGS(dev->num_rx_queues), sizeof(long),
GFP_KERNEL);
mask = bitmap_zalloc(dev->num_rx_queues, GFP_KERNEL);
if (!mask)
return -ENOMEM;
@ -1366,7 +1365,7 @@ static ssize_t xps_rxqs_show(struct netdev_queue *queue, char *buf)
rcu_read_unlock();
len = bitmap_print_to_pagebuf(false, buf, mask, dev->num_rx_queues);
kfree(mask);
bitmap_free(mask);
return len < PAGE_SIZE ? len : -EINVAL;
}
@ -1382,8 +1381,7 @@ static ssize_t xps_rxqs_store(struct netdev_queue *queue, const char *buf,
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
mask = kcalloc(BITS_TO_LONGS(dev->num_rx_queues), sizeof(long),
GFP_KERNEL);
mask = bitmap_zalloc(dev->num_rx_queues, GFP_KERNEL);
if (!mask)
return -ENOMEM;
@ -1391,7 +1389,7 @@ static ssize_t xps_rxqs_store(struct netdev_queue *queue, const char *buf,
err = bitmap_parse(buf, len, mask, dev->num_rx_queues);
if (err) {
kfree(mask);
bitmap_free(mask);
return err;
}
@ -1399,7 +1397,7 @@ static ssize_t xps_rxqs_store(struct netdev_queue *queue, const char *buf,
err = __netif_set_xps_queue(dev, mask, index, true);
cpus_read_unlock();
kfree(mask);
bitmap_free(mask);
return err ? : len;
}