staging: greybus: remove extern prototypes

Functions are implicitly declared with "extern". The compiler doesn't
need it.  extern removed from drivers/staging/greybus/audio_codec.h
file.

Signed-off-by: Payal Kshirsagar <payal.s.kshirsagar.98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/greybus/audio_codec.h b/drivers/staging/greybus/audio_codec.h
index d36f8cd35e06d2fe50410da167f9c4b2a7038574..9ba09ea9c2fc51738561a1d76e1e51bd47a52e94 100644 (file)
--- a/drivers/staging/greybus/audio_codec.h
+++ b/drivers/staging/greybus/audio_codec.h
@@ -173,66 +173,66 @@ int gbaudio_register_module(struct gbaudio_module_info *module);
 void gbaudio_unregister_module(struct gbaudio_module_info *module);
 
 /* protocol related */
-extern int gb_audio_gb_get_topology(struct gb_connection *connection,
-                                   struct gb_audio_topology **topology);
-extern int gb_audio_gb_get_control(struct gb_connection *connection,
-                                  u8 control_id, u8 index,
-                                  struct gb_audio_ctl_elem_value *value);
-extern int gb_audio_gb_set_control(struct gb_connection *connection,
-                                  u8 control_id, u8 index,
-                                  struct gb_audio_ctl_elem_value *value);
-extern int gb_audio_gb_enable_widget(struct gb_connection *connection,
-                                    u8 widget_id);
-extern int gb_audio_gb_disable_widget(struct gb_connection *connection,
-                                     u8 widget_id);
-extern int gb_audio_gb_get_pcm(struct gb_connection *connection,
-                              u16 data_cport, u32 *format,
-                              u32 *rate, u8 *channels,
-                              u8 *sig_bits);
-extern int gb_audio_gb_set_pcm(struct gb_connection *connection,
-                              u16 data_cport, u32 format,
-                              u32 rate, u8 channels,
-                              u8 sig_bits);
-extern int gb_audio_gb_set_tx_data_size(struct gb_connection *connection,
-                                       u16 data_cport, u16 size);
-extern int gb_audio_gb_activate_tx(struct gb_connection *connection,
-                                  u16 data_cport);
-extern int gb_audio_gb_deactivate_tx(struct gb_connection *connection,
-                                    u16 data_cport);
-extern int gb_audio_gb_set_rx_data_size(struct gb_connection *connection,
-                                       u16 data_cport, u16 size);
-extern int gb_audio_gb_activate_rx(struct gb_connection *connection,
-                                  u16 data_cport);
-extern int gb_audio_gb_deactivate_rx(struct gb_connection *connection,
-                                    u16 data_cport);
-extern int gb_audio_apbridgea_set_config(struct gb_connection *connection,
-                                        __u16 i2s_port, __u32 format,
-                                        __u32 rate, __u32 mclk_freq);
-extern int gb_audio_apbridgea_register_cport(struct gb_connection *connection,
-                                            __u16 i2s_port, __u16 cportid,
-                                            __u8 direction);
-extern int gb_audio_apbridgea_unregister_cport(struct gb_connection *connection,
-                                              __u16 i2s_port, __u16 cportid,
-                                              __u8 direction);
-extern int gb_audio_apbridgea_set_tx_data_size(struct gb_connection *connection,
-                                              __u16 i2s_port, __u16 size);
-extern int gb_audio_apbridgea_prepare_tx(struct gb_connection *connection,
-                                        __u16 i2s_port);
-extern int gb_audio_apbridgea_start_tx(struct gb_connection *connection,
-                                      __u16 i2s_port, __u64 timestamp);
-extern int gb_audio_apbridgea_stop_tx(struct gb_connection *connection,
-                                     __u16 i2s_port);
-extern int gb_audio_apbridgea_shutdown_tx(struct gb_connection *connection,
-                                         __u16 i2s_port);
-extern int gb_audio_apbridgea_set_rx_data_size(struct gb_connection *connection,
-                                              __u16 i2s_port, __u16 size);
-extern int gb_audio_apbridgea_prepare_rx(struct gb_connection *connection,
-                                        __u16 i2s_port);
-extern int gb_audio_apbridgea_start_rx(struct gb_connection *connection,
-                                      __u16 i2s_port);
-extern int gb_audio_apbridgea_stop_rx(struct gb_connection *connection,
-                                     __u16 i2s_port);
-extern int gb_audio_apbridgea_shutdown_rx(struct gb_connection *connection,
-                                         __u16 i2s_port);
+int gb_audio_gb_get_topology(struct gb_connection *connection,
+                            struct gb_audio_topology **topology);
+int gb_audio_gb_get_control(struct gb_connection *connection,
+                           u8 control_id, u8 index,
+                           struct gb_audio_ctl_elem_value *value);
+int gb_audio_gb_set_control(struct gb_connection *connection,
+                           u8 control_id, u8 index,
+                           struct gb_audio_ctl_elem_value *value);
+int gb_audio_gb_enable_widget(struct gb_connection *connection,
+                             u8 widget_id);
+int gb_audio_gb_disable_widget(struct gb_connection *connection,
+                              u8 widget_id);
+int gb_audio_gb_get_pcm(struct gb_connection *connection,
+                       u16 data_cport, u32 *format,
+                       u32 *rate, u8 *channels,
+                       u8 *sig_bits);
+int gb_audio_gb_set_pcm(struct gb_connection *connection,
+                       u16 data_cport, u32 format,
+                       u32 rate, u8 channels,
+                       u8 sig_bits);
+int gb_audio_gb_set_tx_data_size(struct gb_connection *connection,
+                                u16 data_cport, u16 size);
+int gb_audio_gb_activate_tx(struct gb_connection *connection,
+                           u16 data_cport);
+int gb_audio_gb_deactivate_tx(struct gb_connection *connection,
+                             u16 data_cport);
+int gb_audio_gb_set_rx_data_size(struct gb_connection *connection,
+                                u16 data_cport, u16 size);
+int gb_audio_gb_activate_rx(struct gb_connection *connection,
+                           u16 data_cport);
+int gb_audio_gb_deactivate_rx(struct gb_connection *connection,
+                             u16 data_cport);
+int gb_audio_apbridgea_set_config(struct gb_connection *connection,
+                                 __u16 i2s_port, __u32 format,
+                                 __u32 rate, __u32 mclk_freq);
+int gb_audio_apbridgea_register_cport(struct gb_connection *connection,
+                                     __u16 i2s_port, __u16 cportid,
+                                     __u8 direction);
+int gb_audio_apbridgea_unregister_cport(struct gb_connection *connection,
+                                       __u16 i2s_port, __u16 cportid,
+                                       __u8 direction);
+int gb_audio_apbridgea_set_tx_data_size(struct gb_connection *connection,
+                                       __u16 i2s_port, __u16 size);
+int gb_audio_apbridgea_prepare_tx(struct gb_connection *connection,
+                                 __u16 i2s_port);
+int gb_audio_apbridgea_start_tx(struct gb_connection *connection,
+                               __u16 i2s_port, __u64 timestamp);
+int gb_audio_apbridgea_stop_tx(struct gb_connection *connection,
+                              __u16 i2s_port);
+int gb_audio_apbridgea_shutdown_tx(struct gb_connection *connection,
+                                  __u16 i2s_port);
+int gb_audio_apbridgea_set_rx_data_size(struct gb_connection *connection,
+                                       __u16 i2s_port, __u16 size);
+int gb_audio_apbridgea_prepare_rx(struct gb_connection *connection,
+                                 __u16 i2s_port);
+int gb_audio_apbridgea_start_rx(struct gb_connection *connection,
+                               __u16 i2s_port);
+int gb_audio_apbridgea_stop_rx(struct gb_connection *connection,
+                              __u16 i2s_port);
+int gb_audio_apbridgea_shutdown_rx(struct gb_connection *connection,
+                                  __u16 i2s_port);
 
 #endif /* __LINUX_GBAUDIO_CODEC_H */