m68k: Kill several external declarations in source files

- Replace external declarations by proper includes where availiable.
The accesses to some symbols had to be modified, as before they were
declared using e.g. "extern int _end", while asm-generic/sections.h uses
e.g. "extern char _end[]"
- Remove unused or superfluous external declarations

Signed-off-by: Geert Uytterhoeven <[e-mail]>

arch/m68k/apollo/config.c

···
 extern int dn_dummy_hwclk(int, struct rtc_time *);
 extern int dn_dummy_set_clock_mmss(unsigned long);
 extern void dn_dummy_reset(void);
-extern void dn_dummy_waitbut(void);
-extern struct fb_info *dn_fb_init(long *);
-extern void dn_dummy_debug_init(void);
-extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp);
 #ifdef CONFIG_HEARTBEAT
 static void dn_heartbeat(int on);
 #endif

arch/m68k/atari/atakeyb.c

···
 #include <asm/atari_joystick.h>
 #include <asm/irq.h>
 
-extern unsigned int keymap_count;
 
 /* Hook for MIDI serial driver */
 void (*atari_MIDI_interrupt_hook) (void);

arch/m68k/bvme6000/config.c

···
 extern int bvme6000_hwclk (int, struct rtc_time *);
 extern int bvme6000_set_clock_mmss (unsigned long);
 extern void bvme6000_reset (void);
-extern void bvme6000_waitbut(void);
 void bvme6000_set_vectors (void);
 
 /* Save tick handler routine pointer, will point to do_timer() in

arch/m68k/kernel/setup.c

···
 #include <linux/initrd.h>
 
 #include <asm/bootinfo.h>
+#include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/fpu.h>
 #include <asm/irq.h>
···
 int m68k_is040or060;
 EXPORT_SYMBOL(m68k_is040or060);
 
-extern int end;
 extern unsigned long availmem;
 
 int m68k_num_memory;
···
 
 void __init setup_arch(char **cmdline_p)
 {
-	extern int _etext, _edata, _end;
 	int i;
 
 	/* The bootinfo is located right after the kernel bss */
-	m68k_parse_bootinfo((const struct bi_record *)&_end);
+	m68k_parse_bootinfo((const struct bi_record *)_end);
 
 	if (CPU_IS_040)
 		m68k_is040or060 = 4;
···
 	}
 
 	init_mm.start_code = PAGE_OFFSET;
-	init_mm.end_code = (unsigned long) &_etext;
-	init_mm.end_data = (unsigned long) &_edata;
-	init_mm.brk = (unsigned long) &_end;
+	init_mm.end_code = (unsigned long)_etext;
+	init_mm.end_data = (unsigned long)_edata;
+	init_mm.brk = (unsigned long)_end;
 
 	*cmdline_p = m68k_command_line;
 	memcpy(boot_command_line, *cmdline_p, CL_SIZE);

arch/m68k/mac/config.c

···
 
 struct mac_booter_data mac_bi_data;
 
-/* New m68k bootinfo stuff and videobase */
-
-extern int m68k_num_memory;
-extern struct mem_info m68k_memory[NUM_MEMINFO];
-
-extern struct mem_info m68k_ramdisk;
-
 /* The phys. video addr. - might be bogus on some machines */
 static unsigned long mac_orig_videoaddr;
 
···
 extern unsigned long mac_gettimeoffset(void);
 extern int mac_hwclk(int, struct rtc_time *);
 extern int mac_set_clock_mmss(unsigned long);
-extern int show_mac_interrupts(struct seq_file *, void *);
 extern void iop_preinit(void);
 extern void iop_init(void);
 extern void via_init(void);
···
 		mac_bi_data.boottime, mac_bi_data.gmtbias);
 	printk(KERN_DEBUG " Machine ID: %ld CPUid: 0x%lx memory size: 0x%lx \n",
 		mac_bi_data.id, mac_bi_data.cpuid, mac_bi_data.memsize);
-#if 0
-	printk("Ramdisk: addr 0x%lx size 0x%lx\n",
-		m68k_ramdisk.addr, m68k_ramdisk.size);
-#endif
 
 	iop_init();
 	via_init();

arch/m68k/mac/debug.c

···
 #include <asm/macints.h>
 
 extern unsigned long mac_videobase;
-extern unsigned long mac_videodepth;
 extern unsigned long mac_rowbytes;
 
 extern void mac_serial_print(const char *);

arch/m68k/mac/macints.c

···
 #include <asm/errno.h>
 #include <asm/macints.h>
 #include <asm/irq_regs.h>
+#include <asm/mac_oss.h>
 
 #define DEBUG_SPURIOUS
 #define SHUTUP_SONIC
···
  * VIA/RBV hooks
  */
 
-extern void via_init(void);
 extern void via_register_interrupts(void);
 extern void via_irq_enable(int);
 extern void via_irq_disable(int);
···
  * OSS hooks
  */
 
-extern int oss_present;
-
-extern void oss_init(void);
 extern void oss_register_interrupts(void);
 extern void oss_irq_enable(int);
 extern void oss_irq_disable(int);
···
  * PSC hooks
  */
 
-extern int psc_present;
-
-extern void psc_init(void);
 extern void psc_register_interrupts(void);
 extern void psc_irq_enable(int);
 extern void psc_irq_disable(int);
···
 
 extern int baboon_present;
 
-extern void baboon_init(void);
 extern void baboon_register_interrupts(void);
 extern void baboon_irq_enable(int);
 extern void baboon_irq_disable(int);
 extern void baboon_irq_clear(int);
-extern int  baboon_irq_pending(int);
 
 /*
  * SCC interrupt routines

arch/m68k/mac/misc.c

···
 
 #define RTC_OFFSET 2082844800
 
-extern struct mac_booter_data mac_bi_data;
 static void (*rom_reset)(void);
 
 #ifdef CONFIG_ADB_CUDA

arch/m68k/mac/via.c

···
 #include <asm/macints.h>
 #include <asm/mac_via.h>
 #include <asm/mac_psc.h>
+#include <asm/mac_oss.h>
 
 volatile __u8 *via1, *via2;
 int rbv_present;
···
 void via_irq_clear(int irq);
 
 extern irqreturn_t mac_scc_dispatch(int, void *);
-extern int oss_present;
 
 /*
  * Initialize the VIAs

arch/m68k/math-emu/fp_log.c

···
 
 extern struct fp_ext *fp_fadd(struct fp_ext *dest, const struct fp_ext *src);
 extern struct fp_ext *fp_fdiv(struct fp_ext *dest, const struct fp_ext *src);
-extern struct fp_ext *fp_fmul(struct fp_ext *dest, const struct fp_ext *src);
 
 struct fp_ext *
 fp_fsqrt(struct fp_ext *dest, struct fp_ext *src)

arch/m68k/mm/init.c

···
 #ifdef CONFIG_ATARI
 #include <asm/atari_stram.h>
 #endif
+#include <asm/sections.h>
 #include <asm/tlb.h>
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
···
 extern void init_pointer_table(unsigned long ptable);
 
 /* References to section boundaries */
-
-extern char _text[], _etext[];
-extern char __init_begin[], __init_end[];
 
 extern pmd_t *zero_pgtable;
 

arch/m68k/mm/motorola.c

···
 #ifdef CONFIG_ATARI
 #include <asm/atari_stram.h>
 #endif
+#include <asm/sections.h>
 
 #undef DEBUG
 
···
 	}
 }
 
-extern char __init_begin, __init_end;
-
 void free_initmem(void)
 {
 	unsigned long addr;
 
-	addr = (unsigned long)&__init_begin;
-	for (; addr < (unsigned long)&__init_end; addr += PAGE_SIZE) {
+	addr = (unsigned long)__init_begin;
+	for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
 		virt_to_page(addr)->flags &= ~(1 << PG_reserved);
 		init_page_count(virt_to_page(addr));
 		free_page(addr);

arch/m68k/mvme147/config.c

···
 extern int mvme147_hwclk (int, struct rtc_time *);
 extern int mvme147_set_clock_mmss (unsigned long);
 extern void mvme147_reset (void);
-extern void mvme147_waitbut(void);
 
 
 static int bcd2int (unsigned char b);

arch/m68k/mvme16x/config.c

···
 extern int mvme16x_hwclk (int, struct rtc_time *);
 extern int mvme16x_set_clock_mmss (unsigned long);
 extern void mvme16x_reset (void);
-extern void mvme16x_waitbut(void);
 
 int bcd2int (unsigned char b);
 

arch/m68k/q40/config.c

···
 #include <asm/machdep.h>
 #include <asm/q40_master.h>
 
-extern irqreturn_t q40_process_int(int level, struct pt_regs *regs);
 extern void q40_init_IRQ(void);
 static void q40_get_model(char *model);
 extern void q40_sched_init(irq_handler_t handler);
···
 static int q40_set_clock_mmss(unsigned long);
 static int q40_get_rtc_pll(struct rtc_pll_info *pll);
 static int q40_set_rtc_pll(struct rtc_pll_info *pll);
-extern void q40_waitbut(void);
-void q40_set_vectors(void);
 
 extern void q40_mksound(unsigned int /*freq*/, unsigned int /*ticks*/);
 

arch/m68k/sun3/config.c

···
 #include <asm/sun3mmu.h>
 #include <asm/rtc.h>
 #include <asm/machdep.h>
+#include <asm/idprom.h>
 #include <asm/intersil.h>
 #include <asm/irq.h>
+#include <asm/sections.h>
 #include <asm/segment.h>
 #include <asm/sun3ints.h>
-
-extern char _text, _end;
 
 char sun3_reserved_pmeg[SUN3_PMEGS_NUM];
 
 extern unsigned long sun3_gettimeoffset(void);
 static void sun3_sched_init(irq_handler_t handler);
 extern void sun3_get_model (char* model);
-extern void idprom_init (void);
 extern int sun3_hwclk(int set, struct rtc_time *t);
 
 volatile char* clock_va;
-extern volatile unsigned char* sun3_intreg;
 extern unsigned long availmem;
 unsigned long num_pages;
 
···
 	mach_halt	     =  sun3_halt;
 	mach_get_hardware_list = sun3_get_hardware_list;
 
-	memory_start = ((((int)&_end) + 0x2000) & ~0x1fff);
+	memory_start = ((((unsigned long)_end) + 0x2000) & ~0x1fff);
 // PROM seems to want the last couple of physical pages. --m
 	memory_end   = *(romvec->pv_sun3mem) + PAGE_OFFSET - 2*PAGE_SIZE;
 

arch/m68k/sun3/mmu_emu.c

···
 #include <asm/mmu_context.h>
 #include <asm/dvma.h>
 
-extern void prom_reboot (char *) __attribute__ ((__noreturn__));
 
 #undef DEBUG_MMU_EMU
 #define DEBUG_PROM_MAPS

arch/m68k/sun3x/config.c

···
 #include "time.h"
 
 volatile char *clock_va;
-extern volatile unsigned char *sun3_intreg;
 
 extern void sun3_get_model(char *model);