netdev - [PATCH net-next 12/15] ice: Use local variable instead of pointer derefs

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 09:13:18 -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 12/15] ice: Use local variable instead of pointer derefs

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

Replace multiple instances of vsi->back and pi->phy with equivalent
local variables

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_main.c | 27 ++++++++++-------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index c81eb27e83a6..73dd272acbf9 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -1857,27 +1857,24 @@ static int ice_init_phy_user_cfg(struct ice_port_info *pi)
 static int ice_configure_phy(struct ice_vsi *vsi)
 {
 	struct device *dev = ice_pf_to_dev(vsi->back);
+	struct ice_port_info *pi = vsi->port_info;
 	struct ice_aqc_get_phy_caps_data *pcaps;
 	struct ice_aqc_set_phy_cfg_data *cfg;
-	struct ice_port_info *pi;
+	struct ice_phy_info *phy = &pi->phy;
+	struct ice_pf *pf = vsi->back;
 	enum ice_status status;
 	int err = 0;
 
-	pi = vsi->port_info;
-	if (!pi)
-		return -EINVAL;
-
 	/* Ensure we have media as we cannot configure a medialess port */
-	if (!(pi->phy.link_info.link_info & ICE_AQ_MEDIA_AVAILABLE))
+	if (!(phy->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE))
 		return -EPERM;
 
 	ice_print_topo_conflict(vsi);
 
-	if (vsi->port_info->phy.link_info.topo_media_conflict ==
-	    ICE_AQ_LINK_TOPO_UNSUPP_MEDIA)
+	if (phy->link_info.topo_media_conflict == ICE_AQ_LINK_TOPO_UNSUPP_MEDIA)
 		return -EPERM;
 
-	if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, vsi->back->flags))
+	if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags))
 		return ice_force_phys_link_state(vsi, true);
 
 	pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
@@ -1898,7 +1895,7 @@ static int ice_configure_phy(struct ice_vsi *vsi)
 	 * there's nothing to do
 	 */
 	if (pcaps->caps & ICE_AQC_PHY_EN_LINK &&
-	    ice_phy_caps_equals_cfg(pcaps, &pi->phy.curr_user_phy_cfg))
+	    ice_phy_caps_equals_cfg(pcaps, &phy->curr_user_phy_cfg))
 		goto done;
 
 	/* Use PHY topology as baseline for configuration */
@@ -1929,8 +1926,8 @@ static int ice_configure_phy(struct ice_vsi *vsi)
 	 */
 	if (test_and_clear_bit(__ICE_LINK_DEFAULT_OVERRIDE_PENDING,
 			       vsi->back->state)) {
-		cfg->phy_type_low = pi->phy.curr_user_phy_cfg.phy_type_low;
-		cfg->phy_type_high = pi->phy.curr_user_phy_cfg.phy_type_high;
+		cfg->phy_type_low = phy->curr_user_phy_cfg.phy_type_low;
+		cfg->phy_type_high = phy->curr_user_phy_cfg.phy_type_high;
 	} else {
 		u64 phy_low = 0, phy_high = 0;
 
@@ -1948,7 +1945,7 @@ static int ice_configure_phy(struct ice_vsi *vsi)
 	}
 
 	/* FEC */
-	ice_cfg_phy_fec(pi, cfg, pi->phy.curr_user_fec_req);
+	ice_cfg_phy_fec(pi, cfg, phy->curr_user_fec_req);
 
 	/* Can't provide what was requested; use PHY capabilities */
 	if (cfg->link_fec_opt !=
@@ -1960,12 +1957,12 @@ static int ice_configure_phy(struct ice_vsi *vsi)
 	/* Flow Control - always supported; no need to check against
 	 * capabilities
 	 */
-	ice_cfg_phy_fc(pi, cfg, pi->phy.curr_user_fc_req);
+	ice_cfg_phy_fc(pi, cfg, phy->curr_user_fc_req);
 
 	/* Enable link and link update */
 	cfg->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT | ICE_AQ_PHY_ENA_LINK;
 
-	status = ice_aq_set_phy_cfg(&vsi->back->hw, pi, cfg, NULL);
+	status = ice_aq_set_phy_cfg(&pf->hw, pi, cfg, NULL);
 	if (status) {
 		dev_err(dev, "Failed to set phy config, VSI %d error %s\n",
 			vsi->vsi_num, ice_stat_str(status));
-- 
2.26.2