RDMA/bnxt_re: Optimize the bnxt_re_init_hwrm_hdr usage

As of now bnxt_re_init_hwrm_hdr is taking only the opcode from the
caller. compl_ring and target_id field is always -1. These fields might be
changed when newer features are added. For now, removing these parameters
as they are hard coded. Also, remove the rdev field which is not used.

Also, initialize the structure bnxt_fw_msg during declaration itself.

Link: https://lore.kernel.org/r/1686679943-17117-4-git-send-email-selvin.xavier@broadcom.comSuggested-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/bnxt_re/main.c

@@ -321,12 +321,11 @@ static int bnxt_re_register_netdev(struct bnxt_re_dev *rdev)
 	return rc;
 }
 
-static void bnxt_re_init_hwrm_hdr(struct bnxt_re_dev *rdev, struct input *hdr,
-				  u16 opcd, u16 crid, u16 trid)
+static void bnxt_re_init_hwrm_hdr(struct input *hdr, u16 opcd)
 {
 	hdr->req_type = cpu_to_le16(opcd);
-	hdr->cmpl_ring = cpu_to_le16(crid);
-	hdr->target_id = cpu_to_le16(trid);
+	hdr->cmpl_ring = cpu_to_le16(-1);
+	hdr->target_id = cpu_to_le16(-1);
 }
 
 static void bnxt_re_fill_fw_msg(struct bnxt_fw_msg *fw_msg, void *msg,
@@ -344,9 +343,9 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev,
 				 u16 fw_ring_id, int type)
 {
 	struct bnxt_en_dev *en_dev;
-	struct hwrm_ring_free_input req = {0};
+	struct hwrm_ring_free_input req = {};
 	struct hwrm_ring_free_output resp;
-	struct bnxt_fw_msg fw_msg;
+	struct bnxt_fw_msg fw_msg = {};
 	int rc = -EINVAL;
 
 	if (!rdev)
@@ -360,9 +359,7 @@ static int bnxt_re_net_ring_free(struct bnxt_re_dev *rdev,
 	if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags))
 		return 0;
 
-	memset(&fw_msg, 0, sizeof(fw_msg));
-
-	bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_FREE, -1, -1);
+	bnxt_re_init_hwrm_hdr((void *)&req, HWRM_RING_FREE);
 	req.ring_type = type;
 	req.ring_id = cpu_to_le16(fw_ring_id);
 	bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
@@ -379,16 +376,15 @@ static int bnxt_re_net_ring_alloc(struct bnxt_re_dev *rdev,
 				  u16 *fw_ring_id)
 {
 	struct bnxt_en_dev *en_dev = rdev->en_dev;
-	struct hwrm_ring_alloc_input req = {0};
+	struct hwrm_ring_alloc_input req = {};
 	struct hwrm_ring_alloc_output resp;
-	struct bnxt_fw_msg fw_msg;
+	struct bnxt_fw_msg fw_msg = {};
 	int rc = -EINVAL;
 
 	if (!en_dev)
 		return rc;
 
-	memset(&fw_msg, 0, sizeof(fw_msg));
-	bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_RING_ALLOC, -1, -1);
+	bnxt_re_init_hwrm_hdr((void *)&req, HWRM_RING_ALLOC);
 	req.enables = 0;
 	req.page_tbl_addr =  cpu_to_le64(ring_attr->dma_arr[0]);
 	if (ring_attr->pages > 1) {
@@ -417,7 +413,7 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev,
 	struct bnxt_en_dev *en_dev = rdev->en_dev;
 	struct hwrm_stat_ctx_free_input req = {};
 	struct hwrm_stat_ctx_free_output resp = {};
-	struct bnxt_fw_msg fw_msg;
+	struct bnxt_fw_msg fw_msg = {};
 	int rc = -EINVAL;
 
 	if (!en_dev)
@@ -426,9 +422,7 @@ static int bnxt_re_net_stats_ctx_free(struct bnxt_re_dev *rdev,
 	if (test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags))
 		return 0;
 
-	memset(&fw_msg, 0, sizeof(fw_msg));
-
-	bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_FREE, -1, -1);
+	bnxt_re_init_hwrm_hdr((void *)&req, HWRM_STAT_CTX_FREE);
 	req.stat_ctx_id = cpu_to_le32(fw_stats_ctx_id);
 	bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
 			    sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
@@ -445,10 +439,10 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev,
 				       u32 *fw_stats_ctx_id)
 {
 	struct bnxt_qplib_chip_ctx *chip_ctx = rdev->chip_ctx;
-	struct hwrm_stat_ctx_alloc_output resp = {0};
-	struct hwrm_stat_ctx_alloc_input req = {0};
+	struct hwrm_stat_ctx_alloc_output resp = {};
+	struct hwrm_stat_ctx_alloc_input req = {};
 	struct bnxt_en_dev *en_dev = rdev->en_dev;
-	struct bnxt_fw_msg fw_msg;
+	struct bnxt_fw_msg fw_msg = {};
 	int rc = -EINVAL;
 
 	*fw_stats_ctx_id = INVALID_STATS_CTX_ID;
@@ -456,9 +450,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev,
 	if (!en_dev)
 		return rc;
 
-	memset(&fw_msg, 0, sizeof(fw_msg));
-
-	bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_ALLOC, -1, -1);
+	bnxt_re_init_hwrm_hdr((void *)&req, HWRM_STAT_CTX_ALLOC);
 	req.update_period_ms = cpu_to_le32(1000);
 	req.stats_dma_addr = cpu_to_le64(dma_map);
 	req.stats_dma_length = cpu_to_le16(chip_ctx->hw_stats_size);
@@ -1045,15 +1037,13 @@ static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev)
 static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev)
 {
 	struct bnxt_en_dev *en_dev = rdev->en_dev;
-	struct hwrm_ver_get_output resp = {0};
-	struct hwrm_ver_get_input req = {0};
+	struct hwrm_ver_get_output resp = {};
+	struct hwrm_ver_get_input req = {};
 	struct bnxt_qplib_chip_ctx *cctx;
-	struct bnxt_fw_msg fw_msg;
+	struct bnxt_fw_msg fw_msg = {};
 	int rc = 0;
 
-	memset(&fw_msg, 0, sizeof(fw_msg));
-	bnxt_re_init_hwrm_hdr(rdev, (void *)&req,
-			      HWRM_VER_GET, -1, -1);
+	bnxt_re_init_hwrm_hdr((void *)&req, HWRM_VER_GET);
 	req.hwrm_intf_maj = HWRM_VERSION_MAJOR;
 	req.hwrm_intf_min = HWRM_VERSION_MINOR;
 	req.hwrm_intf_upd = HWRM_VERSION_UPDATE;