Fix unused function warnings

cmake/compiler/clang/compiler_flags.cmake

@@ -106,7 +106,6 @@ check_set_compiler_property(PROPERTY warning_extended
                             -Wno-missing-braces
                             -Wno-self-assign
                             -Wno-address-of-packed-member
-                            -Wno-unused-function
                             -Wno-initializer-overrides
                             -Wno-section
                             -Wno-unknown-warning-option

drivers/dma/dma_emul.c

@@ -70,11 +70,6 @@ static void dma_emul_work_handler(struct k_work *work);
 
 LOG_MODULE_REGISTER(dma_emul, CONFIG_DMA_LOG_LEVEL);
 
-static inline bool dma_emul_xfer_is_error_status(int status)
-{
-	return status < 0;
-}
-
 static inline const char *const dma_emul_channel_state_to_string(enum dma_emul_channel_state state)
 {
 	switch (state) {

drivers/flash/spi_nor.c

@@ -300,12 +300,12 @@ static inline void record_entered_dpd(const struct device *const dev)
 #endif
 }
 
+#if ANY_INST_HAS_DPD
 /* Check the current time against the time DPD was entered and delay
  * until it's ok to initiate the DPD exit process.
  */
 static inline void delay_until_exit_dpd_ok(const struct device *const dev)
 {
-#if ANY_INST_HAS_DPD
 	const struct spi_nor_config *const driver_config = dev->config;
 
 	if (driver_config->dpd_exist) {
@@ -333,10 +333,8 @@ static inline void delay_until_exit_dpd_ok(const struct device *const dev)
 			}
 		}
 	}
-#else
-	ARG_UNUSED(dev);
-#endif /* ANY_INST_HAS_DPD */
 }
+#endif /* ANY_INST_HAS_DPD */
 
 /* Indicates that an access command includes bytes for the address.
  * If not provided the opcode is not followed by address bytes.

drivers/gpio/gpio_pca95xx.c

@@ -117,38 +117,6 @@ struct gpio_pca95xx_drv_data {
 #endif
 };
 
-static int read_port_reg(const struct device *dev, uint8_t reg, uint8_t pin,
-			 uint16_t *cache, uint16_t *buf)
-{
-	const struct gpio_pca95xx_config * const config = dev->config;
-	uint8_t b_buf;
-	int ret;
-
-	if (pin >= 8) {
-		reg++;
-	}
-
-	ret = i2c_reg_read_byte_dt(&config->bus, reg, &b_buf);
-	if (ret != 0) {
-		LOG_ERR("PCA95XX[0x%X]: error reading register 0x%X (%d)",
-			config->bus.addr, reg, ret);
-		return ret;
-	}
-
-	if (pin < 8) {
-		((uint8_t *)cache)[LOW_BYTE_LE16_IDX] = b_buf;
-	} else {
-		((uint8_t *)cache)[HIGH_BYTE_LE16_IDX] = b_buf;
-	}
-
-	*buf = *cache;
-
-	LOG_DBG("PCA95XX[0x%X]: Read: REG[0x%X] = 0x%X",
-		config->bus.addr, reg, b_buf);
-
-	return 0;
-}
-
 /**
  * @brief Read both port 0 and port 1 registers of certain register function.
  *
@@ -253,16 +221,6 @@ static int write_port_regs(const struct device *dev, uint8_t reg,
 	return ret;
 }
 
-static inline int update_input_reg(const struct device *dev, uint8_t pin,
-				   uint16_t *buf)
-{
-	struct gpio_pca95xx_drv_data * const drv_data =
-		(struct gpio_pca95xx_drv_data * const)dev->data;
-
-	return read_port_reg(dev, REG_INPUT_PORT0, pin,
-			     &drv_data->reg_cache.input, buf);
-}
-
 static inline int update_input_regs(const struct device *dev, uint16_t *buf)
 {
 	struct gpio_pca95xx_drv_data * const drv_data =

drivers/ieee802154/ieee802154_dw1000.c

@@ -274,16 +274,6 @@ static inline uint32_t dwt_reg_read_u32(const struct device *dev,
 	return sys_get_le32(buf);
 }
 
-static inline uint16_t dwt_reg_read_u16(const struct device *dev,
-				     uint8_t reg, uint16_t offset)
-{
-	uint8_t buf[sizeof(uint16_t)];
-
-	dwt_spi_transfer(dev, reg, offset, sizeof(buf), buf, false);
-
-	return sys_get_le16(buf);
-}
-
 static inline uint8_t dwt_reg_read_u8(const struct device *dev,
 				   uint8_t reg, uint16_t offset)
 {

drivers/modem/modem_cmd_handler.c

@@ -99,12 +99,6 @@ static bool starts_with(struct net_buf *buf, const char *str)
  * Cmd Handler Functions
  */
 
-static inline struct net_buf *read_rx_allocator(k_timeout_t timeout,
-						void *user_data)
-{
-	return net_buf_alloc((struct net_buf_pool *)user_data, timeout);
-}
-
 /* return scanned length for params */
 static int parse_params(struct modem_cmd_handler_data *data,  size_t match_len,
 			const struct modem_cmd *cmd,

drivers/sensor/st/iis2iclx/iis2iclx.c

@@ -65,20 +65,6 @@ static int iis2iclx_accel_range_to_fs_val(int32_t range)
 	return -EINVAL;
 }
 
-static inline int iis2iclx_reboot(const struct device *dev)
-{
-	const struct iis2iclx_config *cfg = dev->config;
-
-	if (iis2iclx_boot_set((stmdev_ctx_t *)&cfg->ctx, 1) < 0) {
-		return -EIO;
-	}
-
-	/* Wait sensor turn-on time as per datasheet */
-	k_msleep(35);
-
-	return 0;
-}
-
 static int iis2iclx_accel_set_fs_raw(const struct device *dev, uint8_t fs)
 {
 	const struct iis2iclx_config *cfg = dev->config;

drivers/sensor/st/ism330dhcx/ism330dhcx.c

@@ -104,20 +104,6 @@ static int ism330dhcx_gyro_range_to_fs_val(int32_t range)
 	return -EINVAL;
 }
 
-static inline int ism330dhcx_reboot(const struct device *dev)
-{
-	struct ism330dhcx_data *data = dev->data;
-
-	if (ism330dhcx_boot_set(data->ctx, 1) < 0) {
-		return -EIO;
-	}
-
-	/* Wait sensor turn-on time as per datasheet */
-	k_busy_wait(35 * USEC_PER_MSEC);
-
-	return 0;
-}
-
 static int ism330dhcx_accel_set_fs_raw(const struct device *dev, uint8_t fs)
 {
 	struct ism330dhcx_data *data = dev->data;

drivers/sensor/st/lis2dw12/lis2dw12.c

@@ -191,6 +191,8 @@ static int lis2dw12_config(const struct device *dev, enum sensor_channel chan,
 }
 
 
+#if (CONFIG_LIS2DW12_SLEEP || CONFIG_LIS2DW12_WAKEUP)
+
 static inline int32_t sensor_ms2_to_mg(const struct sensor_value *ms2)
 {
 	int64_t nano_ms2 = (ms2->val1 * 1000000LL + ms2->val2) * 1000LL;
@@ -202,8 +204,6 @@ static inline int32_t sensor_ms2_to_mg(const struct sensor_value *ms2)
 	}
 }
 
-#if (CONFIG_LIS2DW12_SLEEP || CONFIG_LIS2DW12_WAKEUP)
-
 /* Converts a lis2dw12_fs_t range to its value in milli-g
  * Range can be 2/4/8/16G
  */

drivers/sensor/st/lsm6dso/lsm6dso.c

@@ -86,21 +86,6 @@ static int lsm6dso_gyro_range_to_fs_val(int32_t range)
 	return -EINVAL;
 }
 
-static inline int lsm6dso_reboot(const struct device *dev)
-{
-	const struct lsm6dso_config *cfg = dev->config;
-	stmdev_ctx_t *ctx = (stmdev_ctx_t *)&cfg->ctx;
-
-	if (lsm6dso_boot_set(ctx, 1) < 0) {
-		return -EIO;
-	}
-
-	/* Wait sensor turn-on time as per datasheet */
-	k_busy_wait(35 * USEC_PER_MSEC);
-
-	return 0;
-}
-
 static int lsm6dso_accel_set_fs_raw(const struct device *dev, uint8_t fs)
 {
 	const struct lsm6dso_config *cfg = dev->config;

drivers/sensor/st/lsm6dso16is/lsm6dso16is.c

@@ -80,21 +80,6 @@ static int lsm6dso16is_gyro_range_to_fs_val(int32_t range)
 	return -EINVAL;
 }
 
-static inline int lsm6dso16is_reboot(const struct device *dev)
-{
-	const struct lsm6dso16is_config *cfg = dev->config;
-	stmdev_ctx_t *ctx = (stmdev_ctx_t *)&cfg->ctx;
-
-	if (lsm6dso16is_boot_set(ctx, 1) < 0) {
-		return -EIO;
-	}
-
-	/* Wait sensor turn-on time as per datasheet */
-	k_sleep(K_MSEC(35)); /* turn-on time in ms */
-
-	return 0;
-}
-
 static int lsm6dso16is_accel_set_fs_raw(const struct device *dev, uint8_t fs)
 {
 	const struct lsm6dso16is_config *cfg = dev->config;

drivers/sensor/st/lsm9ds0_mfd/lsm9ds0_mfd.c

@@ -38,7 +38,8 @@ static inline int lsm9ds0_mfd_reboot_memory(const struct device *dev)
 	return 0;
 }
 
-#if !defined(LSM9DS0_MFD_ACCEL_DISABLED)
+#if !defined(LSM9DS0_MFD_ACCEL_DISABLED) && defined(CONFIG_LSM9DS0_MFD_ACCEL_SAMPLING_RATE_RUNTIME)
+
 static inline int lsm9ds0_mfd_accel_set_odr_raw(const struct device *dev,
 						uint8_t odr)
 {
@@ -49,7 +50,6 @@ static inline int lsm9ds0_mfd_accel_set_odr_raw(const struct device *dev,
 				      odr << LSM9DS0_MFD_SHIFT_CTRL_REG1_XM_AODR);
 }
 
-#if defined(CONFIG_LSM9DS0_MFD_ACCEL_SAMPLING_RATE_RUNTIME)
 static const struct {
 	int freq_int;
 	int freq_micro;
@@ -122,7 +122,6 @@ static int lsm9ds0_mfd_accel_set_fs(const struct device *dev, int val)
 	return -ENOTSUP;
 }
 #endif
-#endif
 
 #if !defined(LSM9DS0_MFD_MAGN_DISABLED)
 static inline int lsm9ds0_mfd_magn_set_odr_raw(const struct device *dev,

subsys/net/ip/ipv6_nbr.c

@@ -134,21 +134,6 @@ static inline struct net_nbr *get_nbr(int idx)
 	return &net_neighbor_pool[idx].nbr;
 }
 
-static inline struct net_nbr *get_nbr_from_data(struct net_ipv6_nbr_data *data)
-{
-	int i;
-
-	for (i = 0; i < CONFIG_NET_IPV6_MAX_NEIGHBORS; i++) {
-		struct net_nbr *nbr = get_nbr(i);
-
-		if (nbr->data == (uint8_t *)data) {
-			return nbr;
-		}
-	}
-
-	return NULL;
-}
-
 static void ipv6_nbr_set_state(struct net_nbr *nbr,
 			       enum net_ipv6_nbr_state new_state)
 {

subsys/net/ip/net_pkt.c

@@ -493,15 +493,6 @@ struct net_buf *net_pkt_get_reserve_tx_data(size_t min_len, k_timeout_t timeout)
 
 
 #if defined(CONFIG_NET_CONTEXT_NET_PKT_POOL)
-static inline struct k_mem_slab *get_tx_slab(struct net_context *context)
-{
-	if (context->tx_slab) {
-		return context->tx_slab();
-	}
-
-	return NULL;
-}
-
 static inline struct net_buf_pool *get_data_pool(struct net_context *context)
 {
 	if (context->data_pool) {
@@ -511,7 +502,6 @@ static inline struct net_buf_pool *get_data_pool(struct net_context *context)
 	return NULL;
 }
 #else
-#define get_tx_slab(...) NULL
 #define get_data_pool(...) NULL
 #endif /* CONFIG_NET_CONTEXT_NET_PKT_POOL */
 

subsys/net/ip/utils.c

@@ -597,6 +597,7 @@ uint16_t calc_chksum(uint16_t sum_in, const uint8_t *data, size_t len)
 	}
 }
 
+#if defined(CONFIG_NET_NATIVE_IP)
 static inline uint16_t pkt_calc_chksum(struct net_pkt *pkt, uint16_t sum)
 {
 	struct net_pkt_cursor *cur = &pkt->cursor;
@@ -634,7 +635,6 @@ static inline uint16_t pkt_calc_chksum(struct net_pkt *pkt, uint16_t sum)
 	return sum;
 }
 
-#if defined(CONFIG_NET_NATIVE_IP)
 uint16_t net_calc_chksum(struct net_pkt *pkt, uint8_t proto)
 {
 	size_t len = 0U;

subsys/net/lib/coap/coap_link_format.c

@@ -36,22 +36,6 @@ static inline bool append_u8(struct coap_packet *cpkt, uint8_t data)
 	return true;
 }
 
-static inline bool append_be16(struct coap_packet *cpkt, uint16_t data)
-{
-	if (!cpkt) {
-		return false;
-	}
-
-	if (cpkt->max_len - cpkt->offset < 2) {
-		return false;
-	}
-
-	cpkt->data[cpkt->offset++] = data >> 8;
-	cpkt->data[cpkt->offset++] = (uint8_t) data;
-
-	return true;
-}
-
 static inline bool append(struct coap_packet *cpkt, const uint8_t *data, uint16_t len)
 {
 	if (!cpkt || !data) {

subsys/net/lib/http/http_hpack.c

@@ -18,11 +18,6 @@ static inline bool http_hpack_key_is_static(uint32_t key)
 	return key > HTTP_SERVER_HPACK_INVALID && key <= HTTP_SERVER_HPACK_WWW_AUTHENTICATE;
 }
 
-static inline bool http_hpack_key_is_dynamic(uint32_t key)
-{
-	return key > HTTP_SERVER_HPACK_WWW_AUTHENTICATE;
-}
-
 struct hpack_table_entry {
 	const char *name;
 	const char *value;

tests/net/arp/src/main.c

@@ -149,24 +149,6 @@ static int tester_send(const struct device *dev, struct net_pkt *pkt)
 	return 0;
 }
 
-static inline struct in_addr *if_get_addr(struct net_if *iface)
-{
-	int i;
-
-	for (i = 0; i < NET_IF_MAX_IPV4_ADDR; i++) {
-		if (iface->config.ip.ipv4->unicast[i].ipv4.is_used &&
-		    iface->config.ip.ipv4->unicast[i].ipv4.address.family ==
-								AF_INET &&
-		    iface->config.ip.ipv4->unicast[i].ipv4.addr_state ==
-							NET_ADDR_PREFERRED) {
-			return
-			    &iface->config.ip.ipv4->unicast[i].ipv4.address.in_addr;
-		}
-	}
-
-	return NULL;
-}
-
 static inline struct net_pkt *prepare_arp_reply(struct net_if *iface,
 						struct net_pkt *req,
 						struct net_eth_addr *addr,