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From:   Robert Eshleman <bobbyeshleman@gmail.com>
To:     bobbyeshleman@gmail.com
Cc:     Tariq Toukan <tariqt@mellanox.com>,
        "David S. Miller" <davem@davemloft.net>,
        Ariel Elior <aelior@marvell.com>,
        GR-everest-linux-l2@marvell.com, netdev@vger.kernel.org,
        linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 4/8] qed: remove unnecessary memsets
Date:   Tue, 26 Feb 2019 22:09:51 -0800
Message-Id: <c15478ba2ff607f901c78bd56162509f1f023d52.1551246708.git.bobbyeshleman@gmail.com>
In-Reply-To: <cover.1551246708.git.bobbyeshleman@gmail.com>
References: <cover.1551246708.git.bobbyeshleman@gmail.com>
MIME-Version: 1.0
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This patch replaces unnecessary memset(,0) calls with
simply assigning structs to zero.

Signed-off-by: Robert Eshleman <bobbyeshleman@gmail.com>
---
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |  4 +-
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |  3 +-
 drivers/net/ethernet/qlogic/qed/qed_mcp.c | 70 ++++++++---------------
 3 files changed, 25 insertions(+), 52 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
index c2ad405b2f50..0452ef2fdf1d 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
@@ -902,12 +902,10 @@ static int qed_cxt_src_t2_alloc(struct qed_hwfn *p_hwfn)
 	struct qed_cxt_mngr *p_mngr = p_hwfn->p_cxt_mngr;
 	u32 conn_num, total_size, ent_per_page, psz, i;
 	struct qed_ilt_client_cfg *p_src;
-	struct qed_src_iids src_iids;
+	struct qed_src_iids src_iids = {0};
 	struct qed_dma_mem *p_t2;
 	int rc;
 
-	memset(&src_iids, 0, sizeof(src_iids));
-
 	/* if the SRC ILT client is inactive - there are no connection
 	 * requiring the searcer, leave.
 	 */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hw.c b/drivers/net/ethernet/qlogic/qed/qed_hw.c
index 70504dcf4087..b8ca3a31409b 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hw.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_hw.c
@@ -831,7 +831,7 @@ int qed_dmae_sanity(struct qed_hwfn *p_hwfn,
 		    struct qed_ptt *p_ptt, const char *phase)
 {
 	u32 size = PAGE_SIZE / 2, val;
-	struct qed_dmae_params params;
+	struct qed_dmae_params params = {0};
 	int rc = 0;
 	dma_addr_t p_phys;
 	void *p_virt;
@@ -864,7 +864,6 @@ int qed_dmae_sanity(struct qed_hwfn *p_hwfn,
 		   (u64)p_phys,
 		   p_virt, (u64)(p_phys + size), (u8 *)p_virt + size, size);
 
-	memset(&params, 0, sizeof(params));
 	rc = qed_dmae_host2host(p_hwfn, p_ptt, p_phys, p_phys + size,
 				size / 4 /* size_in_dwords */, &params);
 	if (rc) {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index e7f18e34ff0d..e1b72fc819a9 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -642,10 +642,9 @@ int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
 		u32 *o_mcp_resp,
 		u32 *o_mcp_param)
 {
-	struct qed_mcp_mb_params mb_params;
+	struct qed_mcp_mb_params mb_params = {0};
 	int rc;
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = cmd;
 	mb_params.param = param;
 
@@ -667,10 +666,9 @@ qed_mcp_nvm_wr_cmd(struct qed_hwfn *p_hwfn,
 		   u32 *o_mcp_resp,
 		   u32 *o_mcp_param, u32 i_txn_size, u32 *i_buf)
 {
-	struct qed_mcp_mb_params mb_params;
+	struct qed_mcp_mb_params mb_params = {0};
 	int rc;
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = cmd;
 	mb_params.param = param;
 	mb_params.p_data_src = i_buf;
@@ -695,11 +693,10 @@ int qed_mcp_nvm_rd_cmd(struct qed_hwfn *p_hwfn,
 		       u32 *o_mcp_resp,
 		       u32 *o_mcp_param, u32 *o_txn_size, u32 *o_buf)
 {
-	struct qed_mcp_mb_params mb_params;
+	struct qed_mcp_mb_params mb_params = {0};
 	u8 raw_data[MCP_DRV_NVM_BUF_LEN];
 	int rc;
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = cmd;
 	mb_params.param = param;
 	mb_params.p_data_dst = raw_data;
@@ -821,13 +818,12 @@ __qed_mcp_load_req(struct qed_hwfn *p_hwfn,
 		   struct qed_load_req_in_params *p_in_params,
 		   struct qed_load_req_out_params *p_out_params)
 {
-	struct qed_mcp_mb_params mb_params;
-	struct load_req_stc load_req;
+	struct qed_mcp_mb_params mb_params = {0};
+	struct load_req_stc load_req = {0};
 	struct load_rsp_stc load_rsp;
 	u32 hsi_ver;
 	int rc;
 
-	memset(&load_req, 0, sizeof(load_req));
 	load_req.drv_ver_0 = p_in_params->drv_ver_0;
 	load_req.drv_ver_1 = p_in_params->drv_ver_1;
 	load_req.fw_ver = p_in_params->fw_ver;
@@ -843,7 +839,6 @@ __qed_mcp_load_req(struct qed_hwfn *p_hwfn,
 		  DRV_ID_MCP_HSI_VER_CURRENT :
 		  (p_in_params->hsi_ver << DRV_ID_MCP_HSI_VER_SHIFT);
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = DRV_MSG_CODE_LOAD_REQ;
 	mb_params.param = PDA_COMP | hsi_ver | p_hwfn->cdev->drv_type;
 	mb_params.p_data_src = &load_req;
@@ -959,12 +954,11 @@ int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
 		     struct qed_ptt *p_ptt,
 		     struct qed_load_req_params *p_params)
 {
-	struct qed_load_req_out_params out_params;
-	struct qed_load_req_in_params in_params;
+	struct qed_load_req_out_params out_params = {0};
+	struct qed_load_req_in_params in_params = {0};
 	u8 mfw_drv_role, mfw_force_cmd;
 	int rc;
 
-	memset(&in_params, 0, sizeof(in_params));
 	in_params.hsi_ver = QED_LOAD_REQ_HSI_VER_DEFAULT;
 	in_params.drv_ver_0 = QED_VERSION;
 	in_params.drv_ver_1 = qed_get_config_bitmap();
@@ -981,7 +975,6 @@ int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
 	in_params.force_cmd = mfw_force_cmd;
 	in_params.avoid_eng_reset = p_params->avoid_eng_reset;
 
-	memset(&out_params, 0, sizeof(out_params));
 	rc = __qed_mcp_load_req(p_hwfn, p_ptt, &in_params, &out_params);
 	if (rc)
 		return rc;
@@ -1072,7 +1065,7 @@ int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
 
 int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
-	struct qed_mcp_mb_params mb_params;
+	struct qed_mcp_mb_params mb_params = {0};
 	u32 wol_param;
 
 	switch (p_hwfn->cdev->wol_config) {
@@ -1091,7 +1084,6 @@ int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 		wol_param = DRV_MB_PARAM_UNLOAD_WOL_MCP;
 	}
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = DRV_MSG_CODE_UNLOAD_REQ;
 	mb_params.param = wol_param;
 	mb_params.flags = QED_MB_FLAG_CAN_SLEEP | QED_MB_FLAG_AVOID_BLOCK;
@@ -1101,17 +1093,15 @@ int qed_mcp_unload_req(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 
 int qed_mcp_unload_done(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
-	struct qed_mcp_mb_params mb_params;
-	struct mcp_mac wol_mac;
+	struct qed_mcp_mb_params mb_params = {0};
+	struct mcp_mac wol_mac = {0};
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = DRV_MSG_CODE_UNLOAD_DONE;
 
 	/* Set the primary MAC if WoL is enabled */
 	if (p_hwfn->cdev->wol_config == QED_OV_WOL_ENABLED) {
 		u8 *p_mac = p_hwfn->cdev->wol_mac;
 
-		memset(&wol_mac, 0, sizeof(wol_mac));
 		wol_mac.mac_upper = p_mac[0] << 8 | p_mac[1];
 		wol_mac.mac_lower = p_mac[2] << 24 | p_mac[3] << 16 |
 				    p_mac[4] << 8 | p_mac[5];
@@ -1167,7 +1157,7 @@ int qed_mcp_ack_vf_flr(struct qed_hwfn *p_hwfn,
 	u32 mfw_func_offsize = qed_rd(p_hwfn, p_ptt, addr);
 	u32 func_addr = SECTION_ADDR(mfw_func_offsize,
 				     MCP_PF_ID(p_hwfn));
-	struct qed_mcp_mb_params mb_params;
+	struct qed_mcp_mb_params mb_params = {0};
 	int rc;
 	int i;
 
@@ -1176,7 +1166,6 @@ int qed_mcp_ack_vf_flr(struct qed_hwfn *p_hwfn,
 			   "Acking VFs [%08x,...,%08x] - %08x\n",
 			   i * 32, (i + 1) * 32 - 1, vfs_to_ack[i]);
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = DRV_MSG_CODE_VF_DISABLED_DONE;
 	mb_params.p_data_src = vfs_to_ack;
 	mb_params.data_src_size = VF_MAX_STATIC / 8;
@@ -1455,13 +1444,12 @@ static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn,
 int qed_mcp_set_link(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, bool b_up)
 {
 	struct qed_mcp_link_params *params = &p_hwfn->mcp_info->link_input;
-	struct qed_mcp_mb_params mb_params;
-	struct eth_phy_cfg phy_cfg;
+	struct qed_mcp_mb_params mb_params = {0};
+	struct eth_phy_cfg phy_cfg = {0};
 	int rc = 0;
 	u32 cmd;
 
 	/* Set the shmem configuration according to params */
-	memset(&phy_cfg, 0, sizeof(phy_cfg));
 	cmd = b_up ? DRV_MSG_CODE_INIT_PHY : DRV_MSG_CODE_LINK_RESET;
 	if (!params->speed.autoneg)
 		phy_cfg.speed = params->speed.forced_speed;
@@ -1505,7 +1493,6 @@ int qed_mcp_set_link(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, bool b_up)
 			   "Resetting link\n");
 	}
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = cmd;
 	mb_params.p_data_src = &phy_cfg;
 	mb_params.data_src_size = sizeof(phy_cfg);
@@ -1534,7 +1521,7 @@ static void qed_mcp_send_protocol_stats(struct qed_hwfn *p_hwfn,
 {
 	enum qed_mcp_protocol_type stats_type;
 	union qed_mcp_protocol_stats stats;
-	struct qed_mcp_mb_params mb_params;
+	struct qed_mcp_mb_params mb_params = {0};
 	u32 hsi_param;
 
 	switch (type) {
@@ -1561,7 +1548,6 @@ static void qed_mcp_send_protocol_stats(struct qed_hwfn *p_hwfn,
 
 	qed_get_protocol_stats(p_hwfn->cdev, stats_type, &stats);
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = DRV_MSG_CODE_GET_STATS;
 	mb_params.param = hsi_param;
 	mb_params.p_data_src = &stats;
@@ -2370,20 +2356,18 @@ qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
 			 struct qed_ptt *p_ptt,
 			 struct qed_mcp_drv_version *p_ver)
 {
-	struct qed_mcp_mb_params mb_params;
-	struct drv_version_stc drv_version;
+	struct qed_mcp_mb_params mb_params = {0};
+	struct drv_version_stc drv_version = {0};
 	__be32 val;
 	u32 i;
 	int rc;
 
-	memset(&drv_version, 0, sizeof(drv_version));
 	drv_version.version = p_ver->version;
 	for (i = 0; i < (MCP_DRV_VER_STR_SIZE - 4) / sizeof(u32); i++) {
 		val = cpu_to_be32(*((u32 *)&p_ver->name[i * sizeof(u32)]));
 		*(__be32 *)&drv_version.name[i * sizeof(u32)] = val;
 	}
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = DRV_MSG_CODE_SET_VERSION;
 	mb_params.p_data_src = &drv_version;
 	mb_params.data_src_size = sizeof(drv_version);
@@ -2536,11 +2520,10 @@ int qed_mcp_ov_update_mtu(struct qed_hwfn *p_hwfn,
 int qed_mcp_ov_update_mac(struct qed_hwfn *p_hwfn,
 			  struct qed_ptt *p_ptt, u8 *mac)
 {
-	struct qed_mcp_mb_params mb_params;
+	struct qed_mcp_mb_params mb_params = {0};
 	u32 mfw_mac[2];
 	int rc;
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = DRV_MSG_CODE_SET_VMAC;
 	mb_params.param = DRV_MSG_CODE_VMAC_TYPE_MAC <<
 			  DRV_MSG_CODE_VMAC_TYPE_SHIFT;
@@ -3197,12 +3180,10 @@ qed_mcp_resc_allocation_msg(struct qed_hwfn *p_hwfn,
 			    struct qed_resc_alloc_in_params *p_in_params,
 			    struct qed_resc_alloc_out_params *p_out_params)
 {
-	struct qed_mcp_mb_params mb_params;
-	struct resource_info mfw_resc_info;
+	struct qed_mcp_mb_params mb_params = {0};
+	struct resource_info mfw_resc_info = {0};
 	int rc;
 
-	memset(&mfw_resc_info, 0, sizeof(mfw_resc_info));
-
 	mfw_resc_info.res_id = qed_mcp_get_mfw_res_id(p_in_params->res_id);
 	if (mfw_resc_info.res_id == RESOURCE_NUM_INVALID) {
 		DP_ERR(p_hwfn,
@@ -3224,7 +3205,6 @@ qed_mcp_resc_allocation_msg(struct qed_hwfn *p_hwfn,
 		return -EINVAL;
 	}
 
-	memset(&mb_params, 0, sizeof(mb_params));
 	mb_params.cmd = p_in_params->cmd;
 	mb_params.param = QED_RESC_ALLOC_VERSION;
 	mb_params.p_data_src = &mfw_resc_info;
@@ -3277,15 +3257,13 @@ qed_mcp_set_resc_max_val(struct qed_hwfn *p_hwfn,
 			 enum qed_resources res_id,
 			 u32 resc_max_val, u32 *p_mcp_resp)
 {
-	struct qed_resc_alloc_out_params out_params;
-	struct qed_resc_alloc_in_params in_params;
+	struct qed_resc_alloc_out_params out_params = {0};
+	struct qed_resc_alloc_in_params in_params = {0};
 	int rc;
 
-	memset(&in_params, 0, sizeof(in_params));
 	in_params.cmd = DRV_MSG_SET_RESOURCE_VALUE_MSG;
 	in_params.res_id = res_id;
 	in_params.resc_max_val = resc_max_val;
-	memset(&out_params, 0, sizeof(out_params));
 	rc = qed_mcp_resc_allocation_msg(p_hwfn, p_ptt, &in_params,
 					 &out_params);
 	if (rc)
@@ -3302,14 +3280,12 @@ qed_mcp_get_resc_info(struct qed_hwfn *p_hwfn,
 		      enum qed_resources res_id,
 		      u32 *p_mcp_resp, u32 *p_resc_num, u32 *p_resc_start)
 {
-	struct qed_resc_alloc_out_params out_params;
-	struct qed_resc_alloc_in_params in_params;
+	struct qed_resc_alloc_out_params out_params = {0};
+	struct qed_resc_alloc_in_params in_params = {0};
 	int rc;
 
-	memset(&in_params, 0, sizeof(in_params));
 	in_params.cmd = DRV_MSG_GET_RESOURCE_ALLOC_MSG;
 	in_params.res_id = res_id;
-	memset(&out_params, 0, sizeof(out_params));
 	rc = qed_mcp_resc_allocation_msg(p_hwfn, p_ptt, &in_params,
 					 &out_params);
 	if (rc)
-- 
2.20.1