Make a few local variables static

Change-Id: Ieb77a7f2cdf765afa3121320d03c0478cd97eb0f

apps/playback.c

@@ -115,7 +115,7 @@ static enum audio_buffer_state
 /** Main state control **/
 static bool ff_rw_mode SHAREDBSS_ATTR = false; /* Pre-ff-rewind mode (A,O-) */
 
-enum play_status
+static enum play_status
 {
     PLAY_STOPPED = 0,
     PLAY_PLAYING = AUDIO_STATUS_PLAY,
@@ -268,7 +268,7 @@ enum track_load_status
 /** Track change controls **/
 
 /* What sort of skip is pending globally? */
-enum track_skip_type
+static enum track_skip_type
 {
     /* Relative to what user is intended to see: */
     /* Codec: +0, Track List: +0, Playlist: +0 */

firmware/core_alloc.c

@@ -19,7 +19,7 @@ extern unsigned char audiobufend[];
 /* defined in linker script */
 extern unsigned char audiobuffer[];
 #else /* PLATFORM_HOSTED */
-unsigned char audiobuffer[((MEMORYSIZE)*1024-768)*1024];
+static unsigned char audiobuffer[((MEMORYSIZE)*1024-768)*1024];
 unsigned char *audiobufend = audiobuffer + sizeof(audiobuffer);
 extern unsigned char *audiobufend;
 #endif

firmware/drivers/ramdisk.c

@@ -27,9 +27,9 @@
 #define SECTOR_SIZE 512
 #define NUM_SECTORS 16384
 
-unsigned char ramdisk[SECTOR_SIZE * NUM_SECTORS];
+static unsigned char ramdisk[SECTOR_SIZE * NUM_SECTORS];
 
-long last_disk_activity = -1;
+static long last_disk_activity = -1;
 
 int ramdisk_read_sectors(IF_MD(int drive,)
                      unsigned long start,

firmware/logf.c

@@ -52,7 +52,7 @@
 #include "ata_idle_notify.h"
 
 unsigned char logdiskfbuffer[MAX_LOGDISKF_SIZE];
-int logdiskfindex;
+static int logdiskfindex;
 #endif
 
 /* Only provide all this if asked to */

firmware/powermgmt.c

@@ -56,7 +56,7 @@
 #endif
 
 /** Shared by sim **/
-int last_sent_battery_level = 100;
+static int last_sent_battery_level = 100;
 /* battery level (0-100%) */
 int battery_percent = -1;
 void send_battery_level_event(void);

firmware/target/hosted/filesystem-app.c

@@ -41,7 +41,7 @@
 static const char rbhome[] = "/sdcard";
 #elif (CONFIG_PLATFORM & (PLATFORM_SDL|PLATFORM_MAEMO|PLATFORM_PANDORA)) \
         && !defined(__PCTOOL__)
-const char *rbhome;
+static const char *rbhome;
 #else
 /* YPR0, YPR1 */
 static const char rbhome[] = HOME_DIR;

firmware/target/sh/archos/recorder/powermgmt-recorder.c

@@ -85,8 +85,8 @@ static int wrcount = 0;
  */
 int long_delta;                     /* long term delta battery voltage */
 int short_delta;                    /* short term delta battery voltage */
-bool disk_activity_last_cycle = false;  /* flag set to aid charger time
-                                         * calculation */
+static bool disk_activity_last_cycle = false;  /* flag set to aid charger time
+                                                * calculation */
 char power_message[POWER_MESSAGE_LEN] = ""; /* message that's shown in
                                            debug menu */
                                         /* percentage at which charging