sh: fixup many sparse errors.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/boot/compressed/misc_32.c

@@ -191,7 +191,7 @@ long* stack_start = &user_stack[STACK_SIZE];
 
 void decompress_kernel(void)
 {
-	output_data = 0;
+	output_data = NULL;
 	output_ptr = PHYSADDR((unsigned long)&_text+PAGE_SIZE);
 #ifdef CONFIG_29BIT
 	output_ptr |= P2SEG;

arch/sh/include/asm/clock.h

@@ -39,6 +39,7 @@ struct clk {
 
 /* Should be defined by processor-specific code */
 void arch_init_clk_ops(struct clk_ops **, int type);
+int __init arch_clk_init(void);
 
 /* arch/sh/kernel/cpu/clock.c */
 int clk_init(void);

arch/sh/include/asm/io.h

@@ -194,6 +194,8 @@ __BUILD_MEMORY_STRING(w, u16)
 
 #define IO_SPACE_LIMIT 0xffffffff
 
+extern unsigned long generic_io_base;
+
 /*
  * This function provides a method for the generic case where a board-specific
  * ioport_map simply needs to return the port + some arbitrary port base.
@@ -203,8 +205,6 @@ __BUILD_MEMORY_STRING(w, u16)
  */
 static inline void __set_io_port_base(unsigned long pbase)
 {
-	extern unsigned long generic_io_base;
-
 	generic_io_base = pbase;
 }
 

arch/sh/include/asm/irq.h

@@ -41,6 +41,9 @@ static inline int generic_irq_demux(int irq)
 #define irq_canonicalize(irq)	(irq)
 #define irq_demux(irq)		sh_mv.mv_irq_demux(irq)
 
+void init_IRQ(void);
+asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs);
+
 #ifdef CONFIG_IRQSTACKS
 extern void irq_ctx_init(int cpu);
 extern void irq_ctx_exit(int cpu);

arch/sh/include/asm/processor.h

@@ -45,9 +45,13 @@ enum cpu_type {
 
 /* Forward decl */
 struct sh_cpuinfo;
+struct seq_operations;
+
+extern struct pt_regs fake_swapper_regs;
 
 /* arch/sh/kernel/setup.c */
 const char *get_cpu_subtype(struct sh_cpuinfo *c);
+extern const struct seq_operations cpuinfo_op;
 
 #ifdef CONFIG_VSYSCALL
 int vsyscall_init(void);

arch/sh/include/asm/processor_32.h

@@ -10,6 +10,7 @@
 #ifdef __KERNEL__
 
 #include <linux/compiler.h>
+#include <linux/linkage.h>
 #include <asm/page.h>
 #include <asm/types.h>
 #include <asm/cache.h>
@@ -44,6 +45,8 @@ extern struct sh_cpuinfo cpu_data[];
 #define current_cpu_data cpu_data[smp_processor_id()]
 #define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
 
+asmlinkage void __init sh_cpu_init(void);
+
 /*
  * User space process size: 2GB.
  *

arch/sh/include/asm/processor_64.h

@@ -169,8 +169,6 @@ struct thread_struct {
 #define INIT_MMAP \
 { &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, NULL, NULL }
 
-extern  struct pt_regs fake_swapper_regs;
-
 #define INIT_THREAD  {				\
 	.sp		= sizeof(init_stack) +	\
 			  (long) &init_stack,	\

arch/sh/include/asm/rtc.h

@@ -1,6 +1,7 @@
 #ifndef _ASM_RTC_H
 #define _ASM_RTC_H
 
+void time_init(void);
 extern void (*board_time_init)(void);
 extern void (*rtc_sh_get_time)(struct timespec *);
 extern int (*rtc_sh_set_time)(const time_t);

arch/sh/include/asm/setup.h

@@ -1,6 +1,8 @@
 #ifndef _SH_SETUP_H
 #define _SH_SETUP_H
 
+#include <asm/mmzone.h>
+
 #define COMMAND_LINE_SIZE 256
 
 #ifdef __KERNEL__

arch/sh/include/asm/syscalls.h

@@ -0,0 +1,25 @@
+#ifndef __ASM_SH_SYSCALLS_H
+#define __ASM_SH_SYSCALLS_H
+
+#ifdef __KERNEL__
+
+struct old_utsname;
+
+asmlinkage int old_mmap(unsigned long addr, unsigned long len,
+			unsigned long prot, unsigned long flags,
+			int fd, unsigned long off);
+asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
+			  unsigned long prot, unsigned long flags,
+			  unsigned long fd, unsigned long pgoff);
+asmlinkage int sys_ipc(uint call, int first, int second,
+		       int third, void __user *ptr, long fifth);
+asmlinkage int sys_uname(struct old_utsname __user *name);
+
+#ifdef CONFIG_SUPERH32
+# include "syscalls_32.h"
+#else
+# include "syscalls_64.h"
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_SH_SYSCALLS_H */

arch/sh/include/asm/syscalls_32.h

@@ -0,0 +1,56 @@
+#ifndef __ASM_SH_SYSCALLS_32_H
+#define __ASM_SH_SYSCALLS_32_H
+
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <linux/types.h>
+
+struct pt_regs;
+
+asmlinkage int sys_fork(unsigned long r4, unsigned long r5,
+			unsigned long r6, unsigned long r7,
+			struct pt_regs __regs);
+asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
+			 unsigned long parent_tidptr,
+			 unsigned long child_tidptr,
+			 struct pt_regs __regs);
+asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
+			 unsigned long r6, unsigned long r7,
+			 struct pt_regs __regs);
+asmlinkage int sys_execve(char __user *ufilename, char __user * __user *uargv,
+			  char __user * __user *uenvp, unsigned long r7,
+			  struct pt_regs __regs);
+asmlinkage int sys_sigsuspend(old_sigset_t mask, unsigned long r5,
+			      unsigned long r6, unsigned long r7,
+			      struct pt_regs __regs);
+asmlinkage int sys_sigaction(int sig, const struct old_sigaction __user *act,
+			     struct old_sigaction __user *oact);
+asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+			       unsigned long r6, unsigned long r7,
+			       struct pt_regs __regs);
+asmlinkage int sys_sigreturn(unsigned long r4, unsigned long r5,
+			     unsigned long r6, unsigned long r7,
+			     struct pt_regs __regs);
+asmlinkage int sys_rt_sigreturn(unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs __regs);
+asmlinkage int sys_pipe(unsigned long r4, unsigned long r5,
+			unsigned long r6, unsigned long r7,
+			struct pt_regs __regs);
+asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf,
+				     size_t count, long dummy, loff_t pos);
+asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf,
+				      size_t count, long dummy, loff_t pos);
+asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
+					u32 len0, u32 len1, int advice);
+
+/* Misc syscall related bits */
+asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
+asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
+asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0,
+				 unsigned long thread_info_flags);
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_SH_SYSCALLS_32_H */

arch/sh/include/asm/syscalls_64.h

@@ -0,0 +1,34 @@
+#ifndef __ASM_SH_SYSCALLS_64_H
+#define __ASM_SH_SYSCALLS_64_H
+
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <linux/types.h>
+
+struct pt_regs;
+
+asmlinkage int sys_fork(unsigned long r2, unsigned long r3,
+			unsigned long r4, unsigned long r5,
+			unsigned long r6, unsigned long r7,
+			struct pt_regs *pregs);
+asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
+			 unsigned long r4, unsigned long r5,
+			 unsigned long r6, unsigned long r7,
+			 struct pt_regs *pregs);
+asmlinkage int sys_vfork(unsigned long r2, unsigned long r3,
+			 unsigned long r4, unsigned long r5,
+			 unsigned long r6, unsigned long r7,
+			 struct pt_regs *pregs);
+asmlinkage int sys_execve(char *ufilename, char **uargv,
+			  char **uenvp, unsigned long r5,
+			  unsigned long r6, unsigned long r7,
+			  struct pt_regs *pregs);
+
+/* Misc syscall related bits */
+asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs);
+asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_SH_SYSCALLS_64_H */

arch/sh/include/asm/system.h

@@ -127,6 +127,8 @@ static inline unsigned long __cmpxchg(volatile void * ptr, unsigned long old,
   })
 
 extern void die(const char *str, struct pt_regs *regs, long err) __attribute__ ((noreturn));
+void free_initmem(void);
+void free_initrd_mem(unsigned long start, unsigned long end);
 
 extern void *set_exception_table_vec(unsigned int vec, void *handler);
 
@@ -179,8 +181,8 @@ BUILD_TRAP_HANDLER(fpu_state_restore);
 #define arch_align_stack(x) (x)
 
 struct mem_access {
-	unsigned long (*from)(void *dst, const void *src, unsigned long cnt);
-	unsigned long (*to)(void *dst, const void *src, unsigned long cnt);
+	unsigned long (*from)(void *dst, const void __user *src, unsigned long cnt);
+	unsigned long (*to)(void __user *dst, const void *src, unsigned long cnt);
 };
 
 #ifdef CONFIG_SUPERH32

arch/sh/include/asm/system_32.h

@@ -99,4 +99,20 @@ do {							\
 int handle_unaligned_access(opcode_t instruction, struct pt_regs *regs,
 			    struct mem_access *ma);
 
+asmlinkage void do_address_error(struct pt_regs *regs,
+				 unsigned long writeaccess,
+				 unsigned long address);
+asmlinkage void do_divide_error(unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs __regs);
+asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs __regs);
+asmlinkage void do_illegal_slot_inst(unsigned long r4, unsigned long r5,
+				unsigned long r6, unsigned long r7,
+				struct pt_regs __regs);
+asmlinkage void do_exception_error(unsigned long r4, unsigned long r5,
+				   unsigned long r6, unsigned long r7,
+				   struct pt_regs __regs);
+
 #endif /* __ASM_SH_SYSTEM_32_H */

arch/sh/kernel/cpu/clock.c

@@ -294,9 +294,10 @@ arch_init_clk_ops(struct clk_ops **ops, int type)
 {
 }
 
-void __init __attribute__ ((weak))
+int __init __attribute__ ((weak))
 arch_clk_init(void)
 {
+	return 0;
 }
 
 static int show_clocks(char *buf, char **start, off_t off,
@@ -331,7 +332,7 @@ int __init clk_init(void)
 		ret |= clk_register(clk);
 	}
 
-	arch_clk_init();
+	ret |= arch_clk_init();
 
 	/* Kick the child clocks.. */
 	propagate_rate(&master_clk);

arch/sh/kernel/io_generic.c

@@ -81,7 +81,7 @@ void generic_insb(unsigned long port, void *dst, unsigned long count)
 	volatile u8 *port_addr;
 	u8 *buf = dst;
 
-	port_addr = (volatile u8 *)__ioport_map(port, 1);
+	port_addr = (volatile u8 __force *)__ioport_map(port, 1);
 	while (count--)
 		*buf++ = *port_addr;
 }
@@ -91,7 +91,7 @@ void generic_insw(unsigned long port, void *dst, unsigned long count)
 	volatile u16 *port_addr;
 	u16 *buf = dst;
 
-	port_addr = (volatile u16 *)__ioport_map(port, 2);
+	port_addr = (volatile u16 __force *)__ioport_map(port, 2);
 	while (count--)
 		*buf++ = *port_addr;
 
@@ -103,7 +103,7 @@ void generic_insl(unsigned long port, void *dst, unsigned long count)
 	volatile u32 *port_addr;
 	u32 *buf = dst;
 
-	port_addr = (volatile u32 *)__ioport_map(port, 4);
+	port_addr = (volatile u32 __force *)__ioport_map(port, 4);
 	while (count--)
 		*buf++ = *port_addr;
 

arch/sh/kernel/machvec.c

@@ -14,6 +14,7 @@
 #include <linux/string.h>
 #include <asm/machvec.h>
 #include <asm/sections.h>
+#include <asm/setup.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 

arch/sh/kernel/process_32.c

@@ -26,6 +26,7 @@
 #include <asm/system.h>
 #include <asm/ubc.h>
 #include <asm/fpu.h>
+#include <asm/syscalls.h>
 
 static int hlt_counter;
 int ubc_usercnt = 0;

arch/sh/kernel/process_64.c

@@ -25,6 +25,7 @@
 #include <linux/module.h>
 #include <linux/proc_fs.h>
 #include <linux/io.h>
+#include <asm/syscalls.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/mmu_context.h>

arch/sh/kernel/ptrace_32.c

@@ -27,6 +27,7 @@
 #include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/mmu_context.h>
+#include <asm/syscalls.h>
 
 /*
  * does not yet catch signals sent when the child dies.
@@ -105,6 +106,7 @@ void ptrace_disable(struct task_struct *child)
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
 	struct user * dummy = NULL;
+	unsigned long __user *datap = (unsigned long __user *)data;
 	int ret;
 
 	switch (request) {
@@ -133,7 +135,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			tmp = !!tsk_used_math(child);
 		else
 			tmp = 0;
-		ret = put_user(tmp, (unsigned long __user *)data);
+		ret = put_user(tmp, datap);
 		break;
 	}
 
@@ -202,7 +204,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		}
 
 		ret = 0;
-		if (put_user(tmp, (unsigned long *) data)) {
+		if (put_user(tmp, datap)) {
 			ret = -EFAULT;
 			break;
 		}

arch/sh/kernel/ptrace_64.c

@@ -35,6 +35,7 @@
 #include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/mmu_context.h>
+#include <asm/syscalls.h>
 #include <asm/fpu.h>
 
 /* This mask defines the bits of the SR which the user is not allowed to

arch/sh/kernel/setup.c

@@ -26,6 +26,7 @@
 #include <linux/err.h>
 #include <linux/debugfs.h>
 #include <linux/crash_dump.h>
+#include <linux/mmzone.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/page.h>