diff --git a/arch/um/include/skas/skas.h b/arch/um/include/skas/skas.h
index b073f8a86bd3b38dc340c5cd6bd539e6f164ebfc..64d2c74433060601c1c5a847fde0c64849178381 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 2b6fc8e0f07137bdec6f6b5fcd166f9e79d4e0d6..45c04999d670d1129acb401eb94ed26974213623 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 9757085a022097fe1804373bfd8e498bd38b4991..a1a9090254c29fdd07ad9f982a46d54dd29563ee 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 47b57b497d5529e570591e97a0f041e0d55d842e..15e8b7c4de1383b57a01587b1634171f2a0f26a5 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 c3e2f369c33cae2af0c682eb5a9a32a03781e056..47f04f4a3464a918850b67573e1a67a7cf5c3dec 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -13,14 +13,6 @@
 #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 f0f4b040d7c51cb1b17e44402ce5be1b03ec8f40..dd33f040c52631bb1c5b5dd1a0b659b8e9693f4b 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 eb8f2e4be1929c8f731b8349bbf161afea27c751..63d299df152bb266f614d576b47e9039df531cf4 100644
--- a/arch/um/os-Linux/sigio.c
+++ b/arch/um/os-Linux/sigio.c
@@ -530,7 +530,7 @@ 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 5aade6027e40e71f78ae1c49d5253a2a79bcc534..6ae180703a6361bf9a8f0a7efd01b17e72e6da0f 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -126,7 +126,7 @@ 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 172ad8f72e12e71af5d2b1463a3ec3af272095ed..d6e0a2234b869267e7bfcdf15170716086a55154 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -96,7 +96,7 @@ void wait_stub_done(int pid)
 
 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 106fa8641553664721bafd33ea8f9ee81d51e6e9..a27defb81884e294ddab6dca2260a3b3cc867c58 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 a74442d1376213bc5ad41bf3eb11772a743cdeaa..2c6d0d731c12c9bdcdf0e5a2521cec52ff1e7f25 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 62c7e564f22eb4719b8b10c54c290849be55f5f9..f058d2f82e189b0bea284da767766ed1ba20a781 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 a34263e6b08d3cc2cedf5e87ed0083ef05288e0b..a4846a84a7be2ddae740675dfcec28e5a6a88328 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 6aefcd32fc615d91723baad3adfe51734cd60070..315749705ea1b91fccf261ba1161eb785cff9701 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);