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Message-Id: <20080424.163655.11981438.xiyou.wangcong@gmail.com>
Date: Thu, 24 Apr 2008 16:36:55 +0800 (CST)
From: WANG Cong <xiyou.wangcong@...il.com>
To: linux-kernel@...r.kernel.org
Cc: akpm@...l.org, jdike@...toit.com,
user-mode-linux-devel@...ts.sourceforge.net
Subject: [Patch] UML: make several things static
Make some variables and functions static, since they don't need
to be global.
And remove an unused function - arch/um/kernel/time.c::sched_clock().
Cc: Jeff Dike <jdike@...toit.com>
Signed-off-by: WANG Cong <wangcong@...ux.org>
---
arch/um/include/skas/skas.h | 1 -
arch/um/include/um_uaccess.h | 1 -
arch/um/kernel/physmem.c | 2 +-
arch/um/kernel/ptrace.c | 2 +-
arch/um/kernel/time.c | 8 --------
arch/um/kernel/uaccess.c | 2 +-
arch/um/os-Linux/sigio.c | 2 +-
arch/um/os-Linux/signal.c | 2 +-
arch/um/os-Linux/skas/process.c | 2 +-
arch/um/os-Linux/umid.c | 2 +-
arch/um/sys-i386/bugs.c | 2 +-
arch/um/sys-i386/checksum.S | 5 ++---
arch/um/sys-i386/ldt.c | 4 ++--
include/asm-um/ptrace-generic.h | 3 ---
14 files changed, 12 insertions(+), 26 deletions(-)
diff --git a/arch/um/include/skas/skas.h b/arch/um/include/skas/skas.h
index b073f8a..64d2c74 100644
--- a/arch/um/include/skas/skas.h
+++ b/arch/um/include/skas/skas.h
@@ -16,7 +16,6 @@ extern int user_thread(unsigned long stack, int flags);
extern void new_thread_handler(void);
extern void handle_syscall(struct uml_pt_regs *regs);
extern int new_mm(unsigned long stack);
-extern void get_skas_faultinfo(int pid, struct faultinfo * fi);
extern long execute_syscall_skas(void *r);
extern unsigned long current_stub_stack(void);
diff --git a/arch/um/include/um_uaccess.h b/arch/um/include/um_uaccess.h
index 2b6fc8e..45c0499 100644
--- a/arch/um/include/um_uaccess.h
+++ b/arch/um/include/um_uaccess.h
@@ -34,7 +34,6 @@ extern int copy_to_user(void __user *to, const void *from, int n);
extern int __do_copy_to_user(void *to, const void *from, int n,
void **fault_addr, jmp_buf **fault_catcher);
-extern void __do_copy(void *to, const void *from, int n);
/*
* strncpy_from_user: - Copy a NUL terminated string from userspace.
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 9757085..a1a9090 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -185,7 +185,7 @@ unsigned long find_iomem(char *driver, unsigned long *len_out)
return 0;
}
-int setup_iomem(void)
+static int setup_iomem(void)
{
struct iomem_region *region = iomem_regions;
unsigned long iomem_start = high_physmem + PAGE_SIZE;
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 47b57b4..15e8b7c 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -225,7 +225,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
return ret;
}
-void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
+static void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
int error_code)
{
struct siginfo info;
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index e066e84..353c174 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -12,14 +12,6 @@
#include "kern_util.h"
#include "os.h"
-/*
- * Scheduler clock - returns current time in nanosec units.
- */
-unsigned long long sched_clock(void)
-{
- return (unsigned long long)jiffies_64 * (NSEC_PER_SEC / HZ);
-}
-
void timer_handler(int sig, struct uml_pt_regs *regs)
{
unsigned long flags;
diff --git a/arch/um/kernel/uaccess.c b/arch/um/kernel/uaccess.c
index f0f4b04..dd33f04 100644
--- a/arch/um/kernel/uaccess.c
+++ b/arch/um/kernel/uaccess.c
@@ -12,7 +12,7 @@
#include <linux/string.h>
#include "os.h"
-void __do_copy(void *to, const void *from, int n)
+static void __do_copy(void *to, const void *from, int n)
{
memcpy(to, from, n);
}
diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c
index abf47a7..07705c1 100644
--- a/arch/um/os-Linux/sigio.c
+++ b/arch/um/os-Linux/sigio.c
@@ -523,7 +523,7 @@ static void tty_close(int master, int slave)
printk(UM_KERN_CONT "No, enabling workaround\n");
}
-void __init check_sigio(void)
+static void __init check_sigio(void)
{
if ((access("/dev/ptmx", R_OK) < 0) &&
(access("/dev/ptyp0", R_OK) < 0)) {
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index 3f1694b..1a3d233 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -125,7 +125,7 @@ void set_sigstack(void *sig_stack, int size)
panic("enabling signal stack failed, errno = %d\n", errno);
}
-void (*handlers[_NSIG])(int sig, struct sigcontext *sc);
+static void (*handlers[_NSIG])(int sig, struct sigcontext *sc);
void handle_signal(int sig, struct sigcontext *sc)
{
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 1e8cba6..9ec0f2d 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -96,7 +96,7 @@ bad_wait:
extern unsigned long current_stub_stack(void);
-void get_skas_faultinfo(int pid, struct faultinfo * fi)
+static void get_skas_faultinfo(int pid, struct faultinfo * fi)
{
int err;
diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c
index 106fa86..a27defb 100644
--- a/arch/um/os-Linux/umid.c
+++ b/arch/um/os-Linux/umid.c
@@ -245,7 +245,7 @@ int __init set_umid(char *name)
/* Changed in make_umid, which is called during early boot */
static int umid_setup = 0;
-int __init make_umid(void)
+static int __init make_umid(void)
{
int fd, err;
char tmp[256];
diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c
index a74442d..2c6d0d7 100644
--- a/arch/um/sys-i386/bugs.c
+++ b/arch/um/sys-i386/bugs.c
@@ -12,7 +12,7 @@
#include "sysdep/ptrace.h"
/* Set during early boot */
-int host_has_cmov = 1;
+static int host_has_cmov = 1;
static jmp_buf cmov_test_return;
static void cmov_sigill_test_handler(int sig)
diff --git a/arch/um/sys-i386/checksum.S b/arch/um/sys-i386/checksum.S
index 62c7e56..f058d2f 100644
--- a/arch/um/sys-i386/checksum.S
+++ b/arch/um/sys-i386/checksum.S
@@ -243,13 +243,12 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
.previous
.align 4
-.globl csum_partial_copy_generic_i386
-
+
#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
#define ARGBASE 16
#define FP 12
-
+
csum_partial_copy_generic_i386:
subl $4,%esp
pushl %edi
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c
index a34263e..ccec78a 100644
--- a/arch/um/sys-i386/ldt.c
+++ b/arch/um/sys-i386/ldt.c
@@ -14,8 +14,8 @@
extern int modify_ldt(int func, void *ptr, unsigned long bytecount);
-long write_ldt_entry(struct mm_id * mm_idp, int func, struct user_desc * desc,
- void **addr, int done)
+static long write_ldt_entry(struct mm_id * mm_idp, int func,
+ struct user_desc * desc, void **addr, int done)
{
long res;
diff --git a/include/asm-um/ptrace-generic.h b/include/asm-um/ptrace-generic.h
index 6aefcd3..3157497 100644
--- a/include/asm-um/ptrace-generic.h
+++ b/include/asm-um/ptrace-generic.h
@@ -47,9 +47,6 @@ extern int set_fpregs(struct user_i387_struct __user *buf,
extern void show_regs(struct pt_regs *regs);
-extern void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs,
- int error_code);
-
extern int arch_copy_tls(struct task_struct *new);
extern void clear_flushed_tls(struct task_struct *task);
--
1.5.2.4
--
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