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authorChen Zhou <chenzhou10@huawei.com>2020-01-20 20:50:33 +0800
committerDavid S. Miller <davem@davemloft.net>2020-01-21 10:48:40 +0100
commitbea5416561b1b997adbe3a04a5665e647c589a13 (patch)
tree3c4b8f4d0e7cadc32b8127bd8b062854dfdf7181 /drivers/net/ethernet/hisilicon
parentnet: hns3: replace snprintf with scnprintf in hns3_dbg_cmd_read (diff)
downloadlinux-dev-bea5416561b1b997adbe3a04a5665e647c589a13.tar.xz
linux-dev-bea5416561b1b997adbe3a04a5665e647c589a13.zip
net: hns3: replace snprintf with scnprintf in hns3_update_strings
snprintf returns the number of bytes that would be written, which may be greater than the the actual length to be written. Here use extra code to handle this. scnprintf returns the number of bytes that was actually written, just use scnprintf to simplify the code. Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon')
-rw-r--r--drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 6e0212b79438..c03856e63320 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -423,9 +423,8 @@ static void *hns3_update_strings(u8 *data, const struct hns3_stats *stats,
data[ETH_GSTRING_LEN - 1] = '\0';
/* first, prepend the prefix string */
- n1 = snprintf(data, MAX_PREFIX_SIZE, "%s%d_",
- prefix, i);
- n1 = min_t(uint, n1, MAX_PREFIX_SIZE - 1);
+ n1 = scnprintf(data, MAX_PREFIX_SIZE, "%s%d_",
+ prefix, i);
size_left = (ETH_GSTRING_LEN - 1) - n1;
/* now, concatenate the stats string to it */