From: David S. Miller <davem@davemloft.net>
Date: Wed, 26 Mar 2008 08:43:29 +0000 (-0700)
Subject: [SPARC64]: Fix most sparse warnings in arch/sparc64/kernel/sys_sparc.c
X-Git-Tag: upstream/snapshot3+hdmi~26544^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=207ddd0a3a42e6273e3a26447b52e9d6d90d579d;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

[SPARC64]: Fix most sparse warnings in arch/sparc64/kernel/sys_sparc.c

Sparse still doesn't like the funny cast we make from a scalar to a
"union semun" (which is correct by the C language and in particular
works with the sparc64 calling conventions, but sparse doesn't grok
that yet).

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/entry.h b/arch/sparc64/kernel/entry.h
index 4e238a1..129a2f1 100644
--- a/arch/sparc64/kernel/entry.h
+++ b/arch/sparc64/kernel/entry.h
@@ -14,6 +14,8 @@ extern void __init boot_cpu_id_too_large(int cpu);
 extern unsigned int dcache_parity_tl1_occurred;
 extern unsigned int icache_parity_tl1_occurred;
 
+extern asmlinkage void update_perfctrs(void);
+extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
 extern void timer_interrupt(int irq, struct pt_regs *regs);
 
 extern asmlinkage void syscall_trace(struct pt_regs *regs,
diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c
index 134d801..f952745 100644
--- a/arch/sparc64/kernel/sys_sparc.c
+++ b/arch/sparc64/kernel/sys_sparc.c
@@ -1,5 +1,4 @@
-/* $Id: sys_sparc.c,v 1.57 2002/02/09 19:49:30 davem Exp $
- * linux/arch/sparc64/kernel/sys_sparc.c
+/* linux/arch/sparc64/kernel/sys_sparc.c
  *
  * This file contains various random system calls that
  * have a non-standard calling sequence on the Linux/sparc
@@ -30,6 +29,9 @@
 #include <asm/perfctr.h>
 #include <asm/unistd.h>
 
+#include "entry.h"
+#include "systbls.h"
+
 /* #define DEBUG_UNIMP_SYSCALL */
 
 asmlinkage unsigned long sys_getpagesize(void)
@@ -445,7 +447,8 @@ asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
 			goto out;
 		case SEMTIMEDOP:
 			err = sys_semtimedop(first, ptr, (unsigned)second,
-				(const struct timespec __user *) fifth);
+				(const struct timespec __user *)
+					     (unsigned long) fifth);
 			goto out;
 		case SEMGET:
 			err = sys_semget(first, (int)second, (int)third);
@@ -788,7 +791,7 @@ asmlinkage long sys_utrap_install(utrap_entry_t type,
 	} else {
 		if ((utrap_handler_t)current_thread_info()->utraps[type] != new_p &&
 		    current_thread_info()->utraps[0] > 1) {
-			long *p = current_thread_info()->utraps;
+			unsigned long *p = current_thread_info()->utraps;
 
 			current_thread_info()->utraps =
 				kmalloc((UT_TRAP_INSTRUCTION_31+1)*sizeof(long),
@@ -816,7 +819,8 @@ asmlinkage long sys_utrap_install(utrap_entry_t type,
 	return 0;
 }
 
-long sparc_memory_ordering(unsigned long model, struct pt_regs *regs)
+asmlinkage long sparc_memory_ordering(unsigned long model,
+				      struct pt_regs *regs)
 {
 	if (model >= 3)
 		return -EINVAL;
diff --git a/arch/sparc64/kernel/systbls.h b/arch/sparc64/kernel/systbls.h
new file mode 100644
index 0000000..3416182
--- /dev/null
+++ b/arch/sparc64/kernel/systbls.h
@@ -0,0 +1,45 @@
+#ifndef _SYSTBLS_H
+#define _SYSTBLS_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <asm/utrap.h>
+
+extern asmlinkage unsigned long sys_getpagesize(void);
+extern asmlinkage unsigned long sparc_brk(unsigned long brk);
+extern asmlinkage long sparc_pipe(struct pt_regs *regs);
+extern asmlinkage long sys_ipc(unsigned int call, int first,
+			       unsigned long second,
+			       unsigned long third,
+			       void __user *ptr, long fifth);
+extern asmlinkage long sparc64_newuname(struct new_utsname __user *name);
+extern asmlinkage long sparc64_personality(unsigned long personality);
+extern asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
+					 unsigned long prot, unsigned long flags,
+					 unsigned long fd, unsigned long off);
+extern asmlinkage long sys64_munmap(unsigned long addr, size_t len);
+extern asmlinkage unsigned long sys64_mremap(unsigned long addr,
+					     unsigned long old_len,
+					     unsigned long new_len,
+					     unsigned long flags,
+					     unsigned long new_addr);
+extern asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs);
+extern asmlinkage long sys_getdomainname(char __user *name, int len);
+extern asmlinkage long solaris_syscall(struct pt_regs *regs);
+extern asmlinkage long sunos_syscall(struct pt_regs *regs);
+extern asmlinkage long sys_utrap_install(utrap_entry_t type,
+					 utrap_handler_t new_p,
+					 utrap_handler_t new_d,
+					 utrap_handler_t __user *old_p,
+					 utrap_handler_t __user *old_d);
+extern asmlinkage long sparc_memory_ordering(unsigned long model,
+					     struct pt_regs *regs);
+extern asmlinkage long sys_rt_sigaction(int sig,
+					const struct sigaction __user *act,
+					struct sigaction __user *oact,
+					void __user *restorer,
+					size_t sigsetsize);
+extern asmlinkage long sys_perfctr(int opcode, unsigned long arg0,
+				   unsigned long arg1, unsigned long arg2);
+
+#endif /* _SYSTBLS_H */