netdev - [PATCH net-next 08/15] ice: Replace some memsets and memcpys with assignment

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu,  8 Apr 2021 09:13:14 -0700
From:   Tony Nguyen <anthony.l.nguyen@...el.com>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>,
        netdev@...r.kernel.org, sassmann@...hat.com,
        anthony.l.nguyen@...el.com,
        Tony Brelinski <tonyx.brelinski@...el.com>
Subject: [PATCH net-next 08/15] ice: Replace some memsets and memcpys with assignment

From: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>

In ice_set_link_ksettings, use assignment instead of memset/memcpy
where possible

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@...el.com>
Tested-by: Tony Brelinski <tonyx.brelinski@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_ethtool.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 41795d263dcd..5dd84ccf6756 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -2195,8 +2195,9 @@ ice_set_link_ksettings(struct net_device *netdev,
 		       const struct ethtool_link_ksettings *ks)
 {
 	struct ice_netdev_priv *np = netdev_priv(netdev);
-	struct ethtool_link_ksettings safe_ks, copy_ks;
 	u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT;
+	struct ethtool_link_ksettings copy_ks = *ks;
+	struct ethtool_link_ksettings safe_ks = {};
 	struct ice_aqc_get_phy_caps_data *phy_caps;
 	struct ice_aqc_set_phy_cfg_data config;
 	u16 adv_link_speed, curr_link_speed;
@@ -2233,14 +2234,9 @@ ice_set_link_ksettings(struct net_device *netdev,
 		goto done;
 	}
 
-	/* copy the ksettings to copy_ks to avoid modifying the original */
-	memcpy(&copy_ks, ks, sizeof(copy_ks));
-
 	/* save autoneg out of ksettings */
 	autoneg = copy_ks.base.autoneg;
 
-	memset(&safe_ks, 0, sizeof(safe_ks));
-
 	/* Get link modes supported by hardware.*/
 	ice_phy_type_to_ethtool(netdev, &safe_ks);
 
@@ -2289,7 +2285,7 @@ ice_set_link_ksettings(struct net_device *netdev,
 	 * configuration is initialized during probe from PHY capabilities
 	 * software mode, and updated on set PHY configuration.
 	 */
-	memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config));
+	config = pi->phy.curr_user_phy_cfg;
 
 	config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
 
-- 
2.26.2