Re-enable -Wunused-function for clang

cmake/compiler/clang/compiler_flags.cmake

@@ -104,7 +104,6 @@ check_set_compiler_property(PROPERTY warning_extended
                             -Wno-sometimes-uninitialized
                             -Wno-self-assign
                             -Wno-address-of-packed-member
-                            -Wno-unused-function
                             -Wno-initializer-overrides
                             -Wno-section
                             -Wno-unused-variable

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/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/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;

include/zephyr/toolchain.h

@@ -145,6 +145,302 @@
 #define TOOLCHAIN_IGNORE_WSHADOW_END
 #endif
 
+/**
+ * @def TOOLCHAIN_PRAGMA
+ * @brief Helper for using pragma in macros.
+ */
+#ifdef TOOLCHAIN_HAS_PRAGMA_DIAG
+#define TOOLCHAIN_PRAGMA(x) _Pragma(#x)
+#else
+#define TOOLCHAIN_PRAGMA(x)
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_ADDRESS_OF_PACKED_MEMBER
+ * @brief Toolchain-specific warning for taking the address of a packed member.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_ADDRESS_OF_PACKED_MEMBER
+#define TOOLCHAIN_WARNING_ADDRESS_OF_PACKED_MEMBER
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_ALLOC_SIZE_LARGER_THAN
+ * @brief Toolchain-specific warning for allocations larger than a given size.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_ALLOC_SIZE_LARGER_THAN
+#define TOOLCHAIN_WARNING_ALLOC_SIZE_LARGER_THAN
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_ARRAY_BOUNDS
+ * @brief Toolchain-specific warning for array bounds violations.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_ARRAY_BOUNDS
+#define TOOLCHAIN_WARNING_ARRAY_BOUNDS
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_ATTRIBUTES
+ * @brief Toolchain-specific warning for unknown attributes.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_ATTRIBUTES
+#define TOOLCHAIN_WARNING_ATTRIBUTES
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_DANGLING_POINTER
+ * @brief Toolchain-specific warning for dangling pointers.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_DANGLING_POINTER
+#define TOOLCHAIN_WARNING_DANGLING_POINTER
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_DELETE_NON_VIRTUAL_DTOR
+ * @brief Toolchain-specific warning for deleting a pointer to an object
+ * with a non-virtual destructor.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_DELETE_NON_VIRTUAL_DTOR
+#define TOOLCHAIN_WARNING_DELETE_NON_VIRTUAL_DTOR
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_EXTRA
+ * @brief Toolchain-specific warning for extra warnings.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_EXTRA
+#define TOOLCHAIN_WARNING_EXTRA
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_FORMAT_TRUNCATION
+ * @brief Toolchain-specific warning for format truncation.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_FORMAT_TRUNCATION
+#define TOOLCHAIN_WARNING_FORMAT_TRUNCATION
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_INFINITE_RECURSION
+ * @brief Toolchain-specific warning for infinite recursion.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_INFINITE_RECURSION
+#define TOOLCHAIN_WARNING_INFINITE_RECURSION
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_INTEGER_OVERFLOW
+ * @brief Toolchain-specific warning for integer overflow.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_INTEGER_OVERFLOW
+#define TOOLCHAIN_WARNING_INTEGER_OVERFLOW
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_NONNULL
+ * @brief Toolchain-specific warning for null pointer arguments to functions marked with "nonnull".
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_NONNULL
+#define TOOLCHAIN_WARNING_NONNULL
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_OVERFLOW
+ * @brief Toolchain-specific warning for integer overflow.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_OVERFLOW
+#define TOOLCHAIN_WARNING_OVERFLOW
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_POINTER_ARITH
+ * @brief Toolchain-specific warning for pointer arithmetic.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_POINTER_ARITH
+#define TOOLCHAIN_WARNING_POINTER_ARITH
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_PRAGMAS
+ * @brief Toolchain-specific warning for unknown pragmas.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_PRAGMAS
+#define TOOLCHAIN_WARNING_PRAGMAS
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_SHADOW
+ * @brief Toolchain-specific warning for shadow variables.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_SHADOW
+#define TOOLCHAIN_WARNING_SHADOW
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_SIZEOF_ARRAY_DECAY
+ * @brief Toolchain-specific warning for sizeof array decay.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_SIZEOF_ARRAY_DECAY
+#define TOOLCHAIN_WARNING_SIZEOF_ARRAY_DECAY
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_STRINGOP_OVERFLOW
+ * @brief Toolchain-specific warning for stringop overflow.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_STRINGOP_OVERFLOW
+#define TOOLCHAIN_WARNING_STRINGOP_OVERFLOW
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_STRINGOP_TRUNCATION
+ * @brief Toolchain-specific warning for stringop truncation.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_STRINGOP_TRUNCATION
+#define TOOLCHAIN_WARNING_STRINGOP_TRUNCATION
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_UNUSED_FUNCTION
+ * @brief Toolchain-specific warning for unused function.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_UNUSED_FUNCTION
+#define TOOLCHAIN_WARNING_UNUSED_FUNCTION
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_UNUSED_LABEL
+ * @brief Toolchain-specific warning for unused labels.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_UNUSED_LABEL
+#define TOOLCHAIN_WARNING_UNUSED_LABEL
+#endif
+
+/**
+ * @def TOOLCHAIN_WARNING_UNUSED_VARIABLE
+ * @brief Toolchain-specific warning for unused variables.
+ *
+ * Use this as an argument to the @ref TOOLCHAIN_DISABLE_WARNING and
+ * @ref TOOLCHAIN_ENABLE_WARNING family of macros.
+ */
+#ifndef TOOLCHAIN_WARNING_UNUSED_VARIABLE
+#define TOOLCHAIN_WARNING_UNUSED_VARIABLE
+#endif
+
+/**
+ * @def TOOLCHAIN_DISABLE_WARNING
+ * @brief Disable the specified compiler warning for all compilers.
+ */
+#ifndef TOOLCHAIN_DISABLE_WARNING
+#define TOOLCHAIN_DISABLE_WARNING(warning)
+#endif
+
+/**
+ * @def TOOLCHAIN_ENABLE_WARNING
+ * @brief Re-enable the specified compiler warning for all compilers.
+ *
+ * Can only be used after a call to @ref TOOLCHAIN_DISABLE_WARNING.
+ */
+#ifndef TOOLCHAIN_ENABLE_WARNING
+#define TOOLCHAIN_ENABLE_WARNING(warning)
+#endif
+
+/**
+ * @def TOOLCHAIN_DISABLE_CLANG_WARNING
+ * @brief Disable the specified compiler warning for clang.
+ */
+#ifndef TOOLCHAIN_DISABLE_CLANG_WARNING
+#define TOOLCHAIN_DISABLE_CLANG_WARNING(warning)
+#endif
+
+/**
+ * @def TOOLCHAIN_ENABLE_CLANG_WARNING
+ * @brief Re-enable the specified compiler warning for clang.
+ *
+ * Can only be used after a call to @ref TOOLCHAIN_DISABLE_CLANG_WARNING.
+ */
+#ifndef TOOLCHAIN_ENABLE_CLANG_WARNING
+#define TOOLCHAIN_ENABLE_CLANG_WARNING(warning)
+#endif
+
+/**
+ * @def TOOLCHAIN_DISABLE_GCC_WARNING
+ * @brief Disable the specified compiler warning for gcc.
+ */
+#ifndef TOOLCHAIN_DISABLE_GCC_WARNING
+#define TOOLCHAIN_DISABLE_GCC_WARNING(warning)
+#endif
+
+/**
+ * @def TOOLCHAIN_ENABLE_GCC_WARNING
+ * @brief Re-enable the specified compiler warning for gcc.
+ *
+ * Can only be used after a call to @ref TOOLCHAIN_DISABLE_GCC_WARNING.
+ */
+#ifndef TOOLCHAIN_ENABLE_GCC_WARNING
+#define TOOLCHAIN_ENABLE_GCC_WARNING(warning)
+#endif
+
 /*
  * Ensure that __BYTE_ORDER__ and related preprocessor definitions are defined,
  * and that they match the Kconfig option that is used in the code itself to