Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk

22 files changed, 26 insertions, 140 deletions

diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 5047490fc299..d741f35d7b3a 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -362,19 +362,7 @@ static irqreturn_t line_write_interrupt(int irq, void *data)
         if (tty == NULL)
                 return IRQ_NONE;
 
-        if (test_bit(TTY_DO_WRITE_WAKEUP, &tty->flags) &&
-           (tty->ldisc.write_wakeup != NULL))
-                (tty->ldisc.write_wakeup)(tty);
-
-        /*
-         * BLOCKING mode
-         * In blocking mode, everything sleeps on tty->write_wait.
-         * Sleeping in the console driver would break non-blocking
-         * writes.
-         */
-
-        if (waitqueue_active(&tty->write_wait))
-                wake_up_interruptible(&tty->write_wait);
+        tty_wakeup(tty);
         return IRQ_HANDLED;
 }
 
diff --git a/arch/um/include/init.h b/arch/um/include/init.h
index b00a95741d41..37dd097c16c0 100644
--- a/arch/um/include/init.h
+++ b/arch/um/include/init.h
@@ -45,6 +45,8 @@ typedef void (*exitcall_t)(void);
 # define __section(S) __attribute__ ((__section__(#S)))
 #endif
 
+#if __GNUC__ == 3
+
 #if __GNUC_MINOR__ >= 3
 # define __used                 __attribute__((__used__))
 #else
@@ -52,6 +54,12 @@ typedef void (*exitcall_t)(void);
 #endif
 
 #else
+#if __GNUC__ == 4
+# define __used                 __attribute__((__used__))
+#endif
+#endif
+
+#else
 #include <linux/compiler.h>
 #endif
 /* These are for everybody (although not all archs will actually
diff --git a/arch/um/include/irq_kern.h b/arch/um/include/irq_kern.h
index 4f775597fd5f..fba3895274f9 100644
--- a/arch/um/include/irq_kern.h
+++ b/arch/um/include/irq_kern.h
@@ -13,8 +13,6 @@ extern int um_request_irq(unsigned int irq, int fd, int type,
                           irq_handler_t handler,
                           unsigned long irqflags,  const char * devname,
                           void *dev_id);
-extern int init_aio_irq(int irq, char *name,
-                        irq_handler_t handler);
 
 #endif
 
diff --git a/arch/um/include/irq_user.h b/arch/um/include/irq_user.h
index e60b31873de1..c6c784df2673 100644
--- a/arch/um/include/irq_user.h
+++ b/arch/um/include/irq_user.h
@@ -21,8 +21,6 @@ struct irq_fd {
 enum { IRQ_READ, IRQ_WRITE };
 
 extern void sigio_handler(int sig, struct uml_pt_regs *regs);
-extern int activate_fd(int irq, int fd, int type, void *dev_id);
-extern void free_irq_by_irq_and_dev(unsigned int irq, void *dev_id);
 extern void free_irq_by_fd(int fd);
 extern void reactivate_fd(int fd, int irqnum);
 extern void deactivate_fd(int fd, int irqnum);
diff --git a/arch/um/include/skas/skas.h b/arch/um/include/skas/skas.h
index b073f8a86bd3..64d2c7443306 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 2b6fc8e0f071..45c04999d670 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/irq.c b/arch/um/kernel/irq.c
index 91587f8db340..3d7aad09b171 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -102,7 +102,7 @@ void sigio_handler(int sig, struct uml_pt_regs *regs)
 
 static DEFINE_SPINLOCK(irq_lock);
 
-int activate_fd(int irq, int fd, int type, void *dev_id)
+static int activate_fd(int irq, int fd, int type, void *dev_id)
 {
         struct pollfd *tmp_pfd;
         struct irq_fd *new_fd, *irq_fd;
@@ -216,7 +216,7 @@ static int same_irq_and_dev(struct irq_fd *irq, void *d)
         return ((irq->irq == data->irq) && (irq->id == data->dev));
 }
 
-void free_irq_by_irq_and_dev(unsigned int irq, void *dev)
+static void free_irq_by_irq_and_dev(unsigned int irq, void *dev)
 {
         struct irq_and_dev data = ((struct irq_and_dev) { .irq  = irq,
                                                           .dev  = dev });
@@ -403,37 +403,6 @@ void __init init_IRQ(void)
         }
 }
 
-int init_aio_irq(int irq, char *name, irq_handler_t handler)
-{
-        int fds[2], err;
-
-        err = os_pipe(fds, 1, 1);
-        if (err) {
-                printk(KERN_ERR "init_aio_irq - os_pipe failed, err = %d\n",
-                       -err);
-                goto out;
-        }
-
-        err = um_request_irq(irq, fds[0], IRQ_READ, handler,
-                             IRQF_DISABLED | IRQF_SAMPLE_RANDOM, name,
-                             (void *) (long) fds[0]);
-        if (err) {
-                printk(KERN_ERR "init_aio_irq - : um_request_irq failed, "
-                       "err = %d\n",
-                       err);
-                goto out_close;
-        }
-
-        err = fds[1];
-        goto out;
-
- out_close:
-        os_close_file(fds[0]);
-        os_close_file(fds[1]);
- out:
-        return err;
-}
-
 /*
  * IRQ stack entry and exit:
  *
diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
index ccc02a616c22..836fc9b94707 100644
--- a/arch/um/kernel/ksyms.c
+++ b/arch/um/kernel/ksyms.c
@@ -18,7 +18,6 @@ EXPORT_SYMBOL(get_signals);
 EXPORT_SYMBOL(kernel_thread);
 EXPORT_SYMBOL(sys_waitpid);
 EXPORT_SYMBOL(flush_tlb_range);
-EXPORT_SYMBOL(arch_validate);
 
 EXPORT_SYMBOL(high_physmem);
 EXPORT_SYMBOL(empty_zero_page);
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index b0ee64622ff7..61d7e6138ff5 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -21,7 +21,7 @@
 /* allocated in paging_init, zeroed in mem_init, and unchanged thereafter */
 unsigned long *empty_zero_page = NULL;
 /* allocated in paging_init and unchanged thereafter */
-unsigned long *empty_bad_page = NULL;
+static unsigned long *empty_bad_page = NULL;
 
 /*
  * Initialized during boot, and readonly for initializing page tables
@@ -240,37 +240,6 @@ void __init paging_init(void)
 #endif
 }
 
-struct page *arch_validate(struct page *page, gfp_t mask, int order)
-{
-        unsigned long addr, zero = 0;
-        int i;
-
- again:
-        if (page == NULL)
-                return page;
-        if (PageHighMem(page))
-                return page;
-
-        addr = (unsigned long) page_address(page);
-        for (i = 0; i < (1 << order); i++) {
-                current->thread.fault_addr = (void *) addr;
-                if (__do_copy_to_user((void __user *) addr, &zero,
-                                     sizeof(zero),
-                                     &current->thread.fault_addr,
-                                     &current->thread.fault_catcher)) {
-                        if (!(mask & __GFP_WAIT))
-                                return NULL;
-                        else break;
-                }
-                addr += PAGE_SIZE;
-        }
-
-        if (i == (1 << order))
-                return page;
-        page = alloc_pages(mask, order);
-        goto again;
-}
-
 /*
  * This can't do anything because nothing in the kernel image can be freed
  * since it's not in kernel physical memory.
@@ -295,37 +264,6 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 }
 #endif
 
-void show_mem(void)
-{
-        int pfn, total = 0, reserved = 0;
-        int shared = 0, cached = 0;
-        int high_mem = 0;
-        struct page *page;
-
-        printk(KERN_INFO "Mem-info:\n");
-        show_free_areas();
-        printk(KERN_INFO "Free swap:       %6ldkB\n",
-               nr_swap_pages<<(PAGE_SHIFT-10));
-        pfn = max_mapnr;
-        while (pfn-- > 0) {
-                page = pfn_to_page(pfn);
-                total++;
-                if (PageHighMem(page))
-                        high_mem++;
-                if (PageReserved(page))
-                        reserved++;
-                else if (PageSwapCache(page))
-                        cached++;
-                else if (page_count(page))
-                        shared += page_count(page) - 1;
-        }
-        printk(KERN_INFO "%d pages of RAM\n", total);
-        printk(KERN_INFO "%d pages of HIGHMEM\n", high_mem);
-        printk(KERN_INFO "%d reserved pages\n", reserved);
-        printk(KERN_INFO "%d pages shared\n", shared);
-        printk(KERN_INFO "%d pages swap cached\n", cached);
-}
-
 /* Allocate and free page tables. */
 
 pgd_t *pgd_alloc(struct mm_struct *mm)
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 9757085a0220..a1a9090254c2 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/process.c b/arch/um/kernel/process.c
index 83603cfbde81..a1c6d07cac3e 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -243,7 +243,7 @@ void default_idle(void)
                 if (need_resched())
                         schedule();
 
-                tick_nohz_stop_sched_tick();
+                tick_nohz_stop_sched_tick(1);
                 nsecs = disable_timer();
                 idle_sleep(nsecs);
                 tick_nohz_restart_sched_tick();
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 47b57b497d55..15e8b7c4de13 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/smp.c b/arch/um/kernel/smp.c
index e1062ec36d40..be2d50c3aa95 100644
--- a/arch/um/kernel/smp.c
+++ b/arch/um/kernel/smp.c
@@ -214,8 +214,7 @@ void smp_call_function_slave(int cpu)
         atomic_inc(&scf_finished);
 }
 
-int smp_call_function(void (*_func)(void *info), void *_info, int nonatomic,
-                      int wait)
+int smp_call_function(void (*_func)(void *info), void *_info, int wait)
 {
         int cpus = num_online_cpus() - 1;
         int i;
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index c3e2f369c33c..47f04f4a3464 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 f0f4b040d7c5..dd33f040c526 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 eb8f2e4be192..63d299df152b 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 5aade6027e40..6ae180703a63 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 172ad8f72e12..d6e0a2234b86 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 106fa8641553..a27defb81884 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 a74442d13762..2c6d0d731c12 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 62c7e564f22e..f058d2f82e18 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 a34263e6b08d..a4846a84a7be 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;