Fix the bugs of 3SNIC driver compilation failure while using clang

3snic inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7PGHA
CVE: NA

---------------------------------

1.fix a serial of uninitialized bugs
2.fix the bug that expression does not compute the number of elements
Reviewed-by: NChen Mou <chenmou@3snic.com>
Reviewed-by: NWan Renyong <wanry@3snic.com>
Reviewed-by: NYang Gan <yanggan@3snic.com>
Reviewed-by: NWen Liang <wenliang@3snic.com>
Signed-off-by: NSteven Song <steven.song@3snic.com>

drivers/net/ethernet/3snic/sssnic/hw/sss_adapter_mgmt.c

@@ -217,7 +217,7 @@ static unsigned char sss_get_pci_bus_id(struct sss_pci_adapter *adapter)
 	return bus_id;
 }
 
-static bool sss_alloc_card_id(void)
+static bool sss_alloc_card_id(u8 *id)
 {
 	unsigned char i;
 
@@ -225,6 +225,7 @@ static bool sss_alloc_card_id(void)
 	for (i = 0; i < SSS_CARD_CNT_MAX; i++) {
 		if (test_and_set_bit(i, &g_index_bit_map) == 0) {
 			sss_chip_node_unlock();
+			*id = i;
 			return true;
 		}
 	}
@@ -233,10 +234,15 @@ static bool sss_alloc_card_id(void)
 	return false;
 }
 
+static void sss_free_card_id(u8 id)
+{
+	clear_bit(id, &g_index_bit_map);
+}
+
 int sss_alloc_chip_node(struct sss_pci_adapter *adapter)
 {
 	struct sss_card_node *chip_node = NULL;
-	unsigned char i;
+	unsigned char card_id;
 	unsigned char bus_id;
 
 	bus_id = sss_get_pci_bus_id(adapter);
@@ -250,14 +256,15 @@ int sss_alloc_chip_node(struct sss_pci_adapter *adapter)
 
 	chip_node->bus_id = bus_id;
 
-	if (snprintf(chip_node->chip_name, IFNAMSIZ, "%s%u", SSS_CHIP_NAME, i) < 0) {
+	if (!sss_alloc_card_id(&card_id)) {
 		kfree(chip_node);
+		sdk_err(&adapter->pcidev->dev, "chip node is exceed\n");
 		return -EINVAL;
 	}
 
-	if (!sss_alloc_card_id()) {
+	if (snprintf(chip_node->chip_name, IFNAMSIZ, "%s%u", SSS_CHIP_NAME, card_id) < 0) {
+		sss_free_card_id(card_id);
 		kfree(chip_node);
-		sdk_err(&adapter->pcidev->dev, "chip node is exceed\n");
 		return -EINVAL;
 	}
 

drivers/net/ethernet/3snic/sssnic/hw/sss_hwif_ceq.c

@@ -302,7 +302,7 @@ int sss_hwif_init_ceq(struct sss_hwdev *hwdev)
 	act_num = sss_alloc_irq(hwdev, SSS_SERVICE_TYPE_INTF, irq_desc, ceq_num);
 	if (act_num == 0) {
 		sdk_err(hwdev->dev_hdl, "Fail to alloc irq, ceq_num: %u\n", ceq_num);
-		return ret;
+		return -EINVAL;
 	}
 
 	if (act_num < ceq_num) {

drivers/net/ethernet/3snic/sssnic/hw/sss_hwif_ctrlq_init.c

@@ -293,7 +293,7 @@ static int sss_init_ctrlq(struct sss_hwdev *hwdev)
 {
 	u8 i;
 	u8 q_type;
-	int ret;
+	int ret = -ENOMEM;
 	struct sss_ctrlq_info *ctrlq_info = NULL;
 
 	ctrlq_info = kzalloc(sizeof(*ctrlq_info), GFP_KERNEL);

drivers/net/ethernet/3snic/sssnic/nic/sss_nic_rss_cfg.c

@@ -104,7 +104,7 @@ static void sss_nic_fill_indir_tbl(struct sss_nic_rss_indirect_table *indir_tbl,
 		indir_tbl->entry[i] = (u16)indir_table[i];
 
 	temp_entry = (u32 *)indir_tbl->entry;
-	tbl_size = sizeof(indir_tbl->entry) / sizeof(u32);
+	tbl_size = sizeof(indir_tbl->entry) / (sizeof(u32));
 	for (i = 0; i < tbl_size; i++)
 		temp_entry[i] = cpu_to_be32(temp_entry[i]);
 }

drivers/net/ethernet/3snic/sssnic/nic/sss_nic_rx.c

@@ -674,9 +674,9 @@ do { \
 #define sss_nic_xdp_update_rx_info(rq_desc, wqe_num)	\
 do { \
 	struct sss_nic_rx_desc *_rx_desc = NULL; \
-	u16 _wqe_num = wqe_num; \
+	u16 _wqe_cnt = wqe_num; \
 \
-	while (_wqe_num > 0) { \
+	while (_wqe_cnt > 0) { \
 		_rx_desc = &(rq_desc)->rx_desc_group[(rq_desc)->ci & (rq_desc)->qid_mask]; \
 		if (likely(page_to_nid(_rx_desc->page) == numa_node_id())) \
 			sss_nic_rx_reuse_dma_page((rq_desc), _rx_desc); \
@@ -686,7 +686,7 @@ do { \
 		_rx_desc->buf_daddr = 0; \
 		_rx_desc->page = NULL; \
 \
-		_wqe_num--; \
+		_wqe_cnt--; \
 	} \
 } while (0)
 

drivers/net/ethernet/3snic/sssnic/nic/sss_nic_tx.c

@@ -666,7 +666,7 @@ static netdev_tx_t sss_nic_send_one_skb(struct sk_buff *skb,
 					struct sss_nic_sq_desc *sq_desc)
 {
 	u32 qinfo = 0;
-	u32 offload;
+	u32 offload = 0;
 	u16 pi = 0;
 	u16 owner;
 	u16 sge_cnt;