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Subject[PATCH net v2 2/3] net/ethtool/ioctl: remove if n_stats checks from ethtool_get_phy_stats
Date
Now that we always early return if we don't have any stats we can remove
these checks as they're no longer necessary.

Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
net/ethtool/ioctl.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index e8a294b38b7b..3379af21c29f 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -2101,28 +2101,24 @@ static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)

stats.n_stats = n_stats;

- if (n_stats) {
- data = vzalloc(array_size(n_stats, sizeof(u64)));
- if (!data)
- return -ENOMEM;
+ data = vzalloc(array_size(n_stats, sizeof(u64)));
+ if (!data)
+ return -ENOMEM;

- if (phydev && !ops->get_ethtool_phy_stats &&
- phy_ops && phy_ops->get_stats) {
- ret = phy_ops->get_stats(phydev, &stats, data);
- if (ret < 0)
- goto out;
- } else {
- ops->get_ethtool_phy_stats(dev, &stats, data);
- }
+ if (phydev && !ops->get_ethtool_phy_stats &&
+ phy_ops && phy_ops->get_stats) {
+ ret = phy_ops->get_stats(phydev, &stats, data);
+ if (ret < 0)
+ goto out;
} else {
- data = NULL;
+ ops->get_ethtool_phy_stats(dev, &stats, data);
}

ret = -EFAULT;
if (copy_to_user(useraddr, &stats, sizeof(stats)))
goto out;
useraddr += sizeof(stats);
- if (n_stats && copy_to_user(useraddr, data, array_size(n_stats, sizeof(u64))))
+ if (copy_to_user(useraddr, data, array_size(n_stats, sizeof(u64))))
goto out;
ret = 0;

--
2.25.1
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