netdev - [PATCH] net: drop_monitor: Use kstrdup

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Date:   Tue, 28 Jan 2020 11:02:50 -0800
From:   Joe Perches <joe@...ches.com>
To:     Neil Horman <nhorman@...driver.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH] net: drop_monitor: Use kstrdup

Convert the equivalent but rather odd uses of kmemdup with
__GFP_ZERO to the more common kstrdup and avoid unnecessary
zeroing of copied over memory.

Signed-off-by: Joe Perches <joe@...ches.com>
---
 net/core/drop_monitor.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 536e032..ea46fc 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -802,16 +802,12 @@ net_dm_hw_metadata_clone(const struct net_dm_hw_metadata *hw_metadata)
 	if (!n_hw_metadata)
 		return NULL;
 
-	trap_group_name = kmemdup(hw_metadata->trap_group_name,
-				  strlen(hw_metadata->trap_group_name) + 1,
-				  GFP_ATOMIC | __GFP_ZERO);
+	trap_group_name = kstrdup(hw_metadata->trap_group_name, GFP_ATOMIC);
 	if (!trap_group_name)
 		goto free_hw_metadata;
 	n_hw_metadata->trap_group_name = trap_group_name;
 
-	trap_name = kmemdup(hw_metadata->trap_name,
-			    strlen(hw_metadata->trap_name) + 1,
-			    GFP_ATOMIC | __GFP_ZERO);
+	trap_name = kstrdup(hw_metadata->trap_name, GFP_ATOMIC);
 	if (!trap_name)
 		goto free_trap_group;
 	n_hw_metadata->trap_name = trap_name;