* the access attempt is considered to have failed,
  * and we will print an error.
  */
-static u32 rt2400pci_bbp_check(const struct rt2x00_dev *rt2x00dev)
+static u32 rt2400pci_bbp_check(struct rt2x00_dev *rt2x00dev)
 {
        u32 reg;
        unsigned int i;
        return reg;
 }
 
-static void rt2400pci_bbp_write(const struct rt2x00_dev *rt2x00dev,
+static void rt2400pci_bbp_write(struct rt2x00_dev *rt2x00dev,
                                const unsigned int word, const u8 value)
 {
        u32 reg;
        rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
 }
 
-static void rt2400pci_bbp_read(const struct rt2x00_dev *rt2x00dev,
+static void rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, u8 *value)
 {
        u32 reg;
        *value = rt2x00_get_field32(reg, BBPCSR_VALUE);
 }
 
-static void rt2400pci_rf_write(const struct rt2x00_dev *rt2x00dev,
+static void rt2400pci_rf_write(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, const u32 value)
 {
        u32 reg;
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 #define CSR_OFFSET(__word)     ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
 
-static void rt2400pci_read_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt2400pci_read_csr(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, u32 *data)
 {
        rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
 }
 
-static void rt2400pci_write_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt2400pci_write_csr(struct rt2x00_dev *rt2x00dev,
                                const unsigned int word, u32 data)
 {
        rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), data);
 
  * the access attempt is considered to have failed,
  * and we will print an error.
  */
-static u32 rt2500pci_bbp_check(const struct rt2x00_dev *rt2x00dev)
+static u32 rt2500pci_bbp_check(struct rt2x00_dev *rt2x00dev)
 {
        u32 reg;
        unsigned int i;
        return reg;
 }
 
-static void rt2500pci_bbp_write(const struct rt2x00_dev *rt2x00dev,
+static void rt2500pci_bbp_write(struct rt2x00_dev *rt2x00dev,
                                const unsigned int word, const u8 value)
 {
        u32 reg;
        rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
 }
 
-static void rt2500pci_bbp_read(const struct rt2x00_dev *rt2x00dev,
+static void rt2500pci_bbp_read(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, u8 *value)
 {
        u32 reg;
        *value = rt2x00_get_field32(reg, BBPCSR_VALUE);
 }
 
-static void rt2500pci_rf_write(const struct rt2x00_dev *rt2x00dev,
+static void rt2500pci_rf_write(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, const u32 value)
 {
        u32 reg;
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 #define CSR_OFFSET(__word)     ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
 
-static void rt2500pci_read_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt2500pci_read_csr(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, u32 *data)
 {
        rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
 }
 
-static void rt2500pci_write_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt2500pci_write_csr(struct rt2x00_dev *rt2x00dev,
                                const unsigned int word, u32 data)
 {
        rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), data);
 
  * the access attempt is considered to have failed,
  * and we will print an error.
  */
-static inline void rt2500usb_register_read(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
                                           const unsigned int offset,
                                           u16 *value)
 {
        *value = le16_to_cpu(reg);
 }
 
-static inline void rt2500usb_register_multiread(const struct rt2x00_dev
-                                               *rt2x00dev,
+static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
                                                const unsigned int offset,
                                                void *value, const u16 length)
 {
                                      value, length, timeout);
 }
 
-static inline void rt2500usb_register_write(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
                                            const unsigned int offset,
                                            u16 value)
 {
                                      ®, sizeof(u16), REGISTER_TIMEOUT);
 }
 
-static inline void rt2500usb_register_multiwrite(const struct rt2x00_dev
-                                                *rt2x00dev,
+static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
                                                 const unsigned int offset,
                                                 void *value, const u16 length)
 {
                                      value, length, timeout);
 }
 
-static u16 rt2500usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
+static u16 rt2500usb_bbp_check(struct rt2x00_dev *rt2x00dev)
 {
        u16 reg;
        unsigned int i;
        return reg;
 }
 
-static void rt2500usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
                                const unsigned int word, const u8 value)
 {
        u16 reg;
        rt2500usb_register_write(rt2x00dev, PHY_CSR7, reg);
 }
 
-static void rt2500usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, u8 *value)
 {
        u16 reg;
        *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
 }
 
-static void rt2500usb_rf_write(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, const u32 value)
 {
        u16 reg;
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 #define CSR_OFFSET(__word)     ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
 
-static void rt2500usb_read_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
                               const unsigned int word, u32 *data)
 {
        rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
 }
 
-static void rt2500usb_write_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
                                const unsigned int word, u32 data)
 {
        rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
 
  * Generic RF access.
  * The RF is being accessed by word index.
  */
-static inline void rt2x00_rf_read(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
                                  const unsigned int word, u32 *data)
 {
        *data = rt2x00dev->rf[word];
 }
 
-static inline void rt2x00_rf_write(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
                                   const unsigned int word, u32 data)
 {
        rt2x00dev->rf[word] = data;
  *  Generic EEPROM access.
  * The EEPROM is being accessed by word index.
  */
-static inline void *rt2x00_eeprom_addr(const struct rt2x00_dev *rt2x00dev,
+static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
                                       const unsigned int word)
 {
        return (void *)&rt2x00dev->eeprom[word];
 }
 
-static inline void rt2x00_eeprom_read(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
                                      const unsigned int word, u16 *data)
 {
        *data = le16_to_cpu(rt2x00dev->eeprom[word]);
 }
 
-static inline void rt2x00_eeprom_write(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
                                       const unsigned int word, u16 data)
 {
        rt2x00dev->eeprom[word] = cpu_to_le16(data);
 
 
 #define RT2X00DEBUGFS_REGISTER_ENTRY(__name, __type)           \
 struct reg##__name {                                           \
-       void (*read)(const struct rt2x00_dev *rt2x00dev,        \
+       void (*read)(struct rt2x00_dev *rt2x00dev,              \
                     const unsigned int word, __type *data);    \
-       void (*write)(const struct rt2x00_dev *rt2x00dev,       \
+       void (*write)(struct rt2x00_dev *rt2x00dev,             \
                      const unsigned int word, __type data);    \
                                                                \
        unsigned int word_size;                                 \
 
 /*
  * Register access.
  */
-static inline void rt2x00pci_register_read(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00pci_register_read(struct rt2x00_dev *rt2x00dev,
                                           const unsigned long offset,
                                           u32 *value)
 {
 }
 
 static inline void
-rt2x00pci_register_multiread(const struct rt2x00_dev *rt2x00dev,
+rt2x00pci_register_multiread(struct rt2x00_dev *rt2x00dev,
                             const unsigned long offset,
                             void *value, const u16 length)
 {
        memcpy_fromio(value, rt2x00dev->csr_addr + offset, length);
 }
 
-static inline void rt2x00pci_register_write(const struct rt2x00_dev *rt2x00dev,
+static inline void rt2x00pci_register_write(struct rt2x00_dev *rt2x00dev,
                                            const unsigned long offset,
                                            u32 value)
 {
 }
 
 static inline void
-rt2x00pci_register_multiwrite(const struct rt2x00_dev *rt2x00dev,
+rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev,
                              const unsigned long offset,
                              void *value, const u16 length)
 {
 
 /*
  * Interfacing with the HW.
  */
-int rt2x00usb_vendor_request(const struct rt2x00_dev *rt2x00dev,
+int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev,
                             const u8 request, const u8 requesttype,
                             const u16 offset, const u16 value,
                             void *buffer, const u16 buffer_length,
 }
 EXPORT_SYMBOL_GPL(rt2x00usb_vendor_request);
 
-int rt2x00usb_vendor_request_buff(const struct rt2x00_dev *rt2x00dev,
+int rt2x00usb_vendor_request_buff(struct rt2x00_dev *rt2x00dev,
                                  const u8 request, const u8 requesttype,
                                  const u16 offset, void *buffer,
                                  const u16 buffer_length, const int timeout)
 
  * a buffer allocated by kmalloc. Failure to do so can lead
  * to unexpected behavior depending on the architecture.
  */
-int rt2x00usb_vendor_request(const struct rt2x00_dev *rt2x00dev,
+int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev,
                             const u8 request, const u8 requesttype,
                             const u16 offset, const u16 value,
                             void *buffer, const u16 buffer_length,
  * kmalloc. Hence the reason for using a previously allocated cache
  * which has been allocated properly.
  */
-int rt2x00usb_vendor_request_buff(const struct rt2x00_dev *rt2x00dev,
+int rt2x00usb_vendor_request_buff(struct rt2x00_dev *rt2x00dev,
                                  const u8 request, const u8 requesttype,
                                  const u16 offset, void *buffer,
                                  const u16 buffer_length, const int timeout);
  * command to the device. Since we don't use the buffer argument we
  * don't have to worry about kmalloc here.
  */
-static inline int rt2x00usb_vendor_request_sw(const struct rt2x00_dev
-                                             *rt2x00dev,
+static inline int rt2x00usb_vendor_request_sw(struct rt2x00_dev *rt2x00dev,
                                              const u8 request,
                                              const u16 offset,
                                              const u16 value,
  * from the device. Note that the eeprom argument _must_ be allocated using
  * kmalloc for correct handling inside the kernel USB layer.
  */
-static inline int rt2x00usb_eeprom_read(const struct rt2x00_dev *rt2x00dev,
-                                        __le16 *eeprom, const u16 lenght)
+static inline int rt2x00usb_eeprom_read(struct rt2x00_dev *rt2x00dev,
+                                       __le16 *eeprom, const u16 lenght)
 {
        int timeout = REGISTER_TIMEOUT * (lenght / sizeof(u16));
 
 
  * the access attempt is considered to have failed,
  * and we will print an error.
  */
-static u32 rt61pci_bbp_check(const struct rt2x00_dev *rt2x00dev)
+static u32 rt61pci_bbp_check(struct rt2x00_dev *rt2x00dev)
 {
        u32 reg;
        unsigned int i;
        return reg;
 }
 
-static void rt61pci_bbp_write(const struct rt2x00_dev *rt2x00dev,
+static void rt61pci_bbp_write(struct rt2x00_dev *rt2x00dev,
                              const unsigned int word, const u8 value)
 {
        u32 reg;
        rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
 }
 
-static void rt61pci_bbp_read(const struct rt2x00_dev *rt2x00dev,
+static void rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev,
                             const unsigned int word, u8 *value)
 {
        u32 reg;
        *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
 }
 
-static void rt61pci_rf_write(const struct rt2x00_dev *rt2x00dev,
+static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev,
                             const unsigned int word, const u32 value)
 {
        u32 reg;
        rt2x00_rf_write(rt2x00dev, word, value);
 }
 
-static void rt61pci_mcu_request(const struct rt2x00_dev *rt2x00dev,
+static void rt61pci_mcu_request(struct rt2x00_dev *rt2x00dev,
                                const u8 command, const u8 token,
                                const u8 arg0, const u8 arg1)
 {
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 #define CSR_OFFSET(__word)     ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
 
-static void rt61pci_read_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt61pci_read_csr(struct rt2x00_dev *rt2x00dev,
                             const unsigned int word, u32 *data)
 {
        rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
 }
 
-static void rt61pci_write_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt61pci_write_csr(struct rt2x00_dev *rt2x00dev,
                              const unsigned int word, u32 data)
 {
        rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), data);
 
  * the access attempt is considered to have failed,
  * and we will print an error.
  */
-static inline void rt73usb_register_read(const struct rt2x00_dev *rt2x00dev,
+static inline void rt73usb_register_read(struct rt2x00_dev *rt2x00dev,
                                         const unsigned int offset, u32 *value)
 {
        __le32 reg;
        *value = le32_to_cpu(reg);
 }
 
-static inline void rt73usb_register_multiread(const struct rt2x00_dev
-                                             *rt2x00dev,
+static inline void rt73usb_register_multiread(struct rt2x00_dev *rt2x00dev,
                                              const unsigned int offset,
                                              void *value, const u32 length)
 {
                                      value, length, timeout);
 }
 
-static inline void rt73usb_register_write(const struct rt2x00_dev *rt2x00dev,
+static inline void rt73usb_register_write(struct rt2x00_dev *rt2x00dev,
                                          const unsigned int offset, u32 value)
 {
        __le32 reg = cpu_to_le32(value);
                                      ®, sizeof(u32), REGISTER_TIMEOUT);
 }
 
-static inline void rt73usb_register_multiwrite(const struct rt2x00_dev
-                                              *rt2x00dev,
+static inline void rt73usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
                                               const unsigned int offset,
                                               void *value, const u32 length)
 {
                                      value, length, timeout);
 }
 
-static u32 rt73usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
+static u32 rt73usb_bbp_check(struct rt2x00_dev *rt2x00dev)
 {
        u32 reg;
        unsigned int i;
        return reg;
 }
 
-static void rt73usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
+static void rt73usb_bbp_write(struct rt2x00_dev *rt2x00dev,
                              const unsigned int word, const u8 value)
 {
        u32 reg;
        rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
 }
 
-static void rt73usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
+static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev,
                             const unsigned int word, u8 *value)
 {
        u32 reg;
        *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
 }
 
-static void rt73usb_rf_write(const struct rt2x00_dev *rt2x00dev,
+static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev,
                             const unsigned int word, const u32 value)
 {
        u32 reg;
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 #define CSR_OFFSET(__word)     ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
 
-static void rt73usb_read_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt73usb_read_csr(struct rt2x00_dev *rt2x00dev,
                             const unsigned int word, u32 *data)
 {
        rt73usb_register_read(rt2x00dev, CSR_OFFSET(word), data);
 }
 
-static void rt73usb_write_csr(const struct rt2x00_dev *rt2x00dev,
+static void rt73usb_write_csr(struct rt2x00_dev *rt2x00dev,
                              const unsigned int word, u32 data)
 {
        rt73usb_register_write(rt2x00dev, CSR_OFFSET(word), data);