net: hns3: fix compile error when CONFIG_HNS3_DCB is not set

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

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

Currently, CONFIG_HNS3_DCB is configed as y default, but in some
cases, it may not be set.

This patch fixes an compile error when CONFIG_HNS3_DCB is not set.
Signed-off-by: NJunxin Chen <chenjunxin1@huawei.com>
Reviewed-by: NZhong Zhaohui <zhongzhaohui@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/net/ethernet/hisilicon/hns3/Makefile

@@ -59,7 +59,6 @@ hclgevf-objs := hns3vf/hclgevf_main.o hns3vf/hclgevf_cmd.o hns3vf/hclgevf_mbx.o
 #add rally code
 HNS3_CAE_OBJS_PRIM = 	hns3_cae/hns3_cae_init.o \
 			hns3_cae/hns3_cae_lib.o \
-			hns3_cae/hns3_cae_dcb.o \
 			hns3_cae/hns3_cae_dcqcn.o \
 			hns3_cae/hns3_cae_version.o \
 			hns3_cae/hns3_cae_reset.o \
@@ -86,3 +85,4 @@ HNS3_CAE_OBJS_EXT =	hns3_cae/hns3_cae_dfx.o \
 			hns3_cae/hns3_cae_led.o
 obj-$(CONFIG_HNS3_CAE) += hns3_cae.o
 hns3_cae-objs := $(HNS3_CAE_OBJS_PRIM) $(HNS3_CAE_OBJS_EXT)
+hns3_cae-$(CONFIG_HNS3_DCB) += hns3_cae/hns3_cae_dcb.o

drivers/net/ethernet/hisilicon/hns3/hns3_cae/hns3_cae_dcb.h

@@ -57,6 +57,7 @@ struct hns3_cae_dcb_info {
 	struct hns3_cae_ets_cfg_param ets_cfg_info;
 };
 
+#ifdef CONFIG_HNS3_DCB
 int hns3_cae_dcb_cfg(const struct hns3_nic_priv *net_priv,
 		     void *buf_in, u32 in_size, void *buf_out,
 		     u32 out_size);
@@ -66,4 +67,28 @@ int hns3_cae_dcb_ets_cfg(const struct hns3_nic_priv *net_priv,
 int hns3_cae_dcb_pfc_cfg(const struct hns3_nic_priv *net_priv,
 			 void *buf_in, u32 in_size,
 			 void *buf_out, u32 out_size);
+#else
+static inline int hns3_cae_dcb_cfg(const struct hns3_nic_priv *net_priv,
+				   void *buf_in, u32 in_size, void *buf_out,
+				   u32 out_size)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int hns3_cae_dcb_ets_cfg(const struct hns3_nic_priv *net_priv,
+				       void *buf_in, u32 in_size,
+				       void *buf_out, u32 out_size)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int hns3_cae_dcb_pfc_cfg(const struct hns3_nic_priv *net_priv,
+				       void *buf_in, u32 in_size,
+				       void *buf_out, u32 out_size)
+{
+	return -EOPNOTSUPP;
+}
+
+#endif
+
 #endif