7 files changed, 24 insertions, 101 deletions

diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 80d24c485fd3..77fc9f6dc016 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -104,7 +104,7 @@
  *   excsave has been restored, and
  *   stack pointer (a1) has been set.
  *
- * Note: _user_exception might be at an odd adress. Don't use call0..call12
+ * Note: _user_exception might be at an odd address. Don't use call0..call12
  */
 
 ENTRY(user_exception)
@@ -244,7 +244,7 @@ _user_exception:
  *   excsave has been restored, and
  *   stack pointer (a1) has been set.
  *
- * Note: _kernel_exception might be at an odd adress. Don't use call0..call12
+ * Note: _kernel_exception might be at an odd address. Don't use call0..call12
  */
 
 ENTRY(kernel_exception)
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index a1badb32fcda..8cd38484e130 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -90,7 +90,7 @@ int show_interrupts(struct seq_file *p, void *v)
         }
 
         if (i < NR_IRQS) {
-                spin_lock_irqsave(&irq_desc[i].lock, flags);
+                raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
                 action = irq_desc[i].action;
                 if (!action)
                         goto skip;
@@ -109,7 +109,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
                 seq_putc(p, '\n');
 skip:
-                spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+                raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
         } else if (i == NR_IRQS) {
                 seq_printf(p, "NMI: ");
                 for_each_online_cpu(j)
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index f5319d78c876..2783fda76ddc 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -20,6 +20,7 @@
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/pci.h>
+#include <linux/gfp.h>
 #include <asm/io.h>
 #include <asm/cacheflush.h>
 
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index b7c073484e01..cd1026931203 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -69,26 +69,25 @@ static int pci_bus_count;
  * but we want to try to avoid allocating at 0x2900-0x2bff
  * which might have be mirrored at 0x0100-0x03ff..
  */
-void
-pcibios_align_resource(void *data, struct resource *res, resource_size_t size,
-                       resource_size_t align)
+resource_size_t
+pcibios_align_resource(void *data, const struct resource *res,
+                       resource_size_t size, resource_size_t align)
 {
         struct pci_dev *dev = data;
+        resource_size_t start = res->start;
 
         if (res->flags & IORESOURCE_IO) {
-                resource_size_t start = res->start;
-
                 if (size > 0x100) {
                         printk(KERN_ERR "PCI: I/O Region %s/%d too large"
                                " (%ld bytes)\n", pci_name(dev),
                                dev->resource - res, size);
                 }
 
-                if (start & 0x300) {
+                if (start & 0x300)
                         start = (start + 0x3ff) & ~0x3ff;
-                        res->start = start;
-                }
         }
+
+        return start;
 }
 
 int
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index e1a04a346e75..f167e0f5e05e 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -23,7 +23,6 @@
 #include <linux/stddef.h>
 #include <linux/unistd.h>
 #include <linux/ptrace.h>
-#include <linux/slab.h>
 #include <linux/elf.h>
 #include <linux/init.h>
 #include <linux/prctl.h>
@@ -31,6 +30,7 @@
 #include <linux/module.h>
 #include <linux/mqueue.h>
 #include <linux/fs.h>
+#include <linux/slab.h>
 
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 9486882ef0af..9d4e1ceb3f09 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -30,6 +30,17 @@
 #include <asm/elf.h>
 #include <asm/coprocessor.h>
 
+
+void user_enable_single_step(struct task_struct *child)
+{
+        child->ptrace |= PT_SINGLESTEP;
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+        child->ptrace &= ~PT_SINGLESTEP;
+}
+
 /*
  * Called by kernel/ptrace.c when detaching to disable single stepping.
  */
@@ -268,51 +279,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 ret = ptrace_pokeusr(child, addr, data);
                 break;
 
-        /* continue and stop at next (return from) syscall */
-
-        case PTRACE_SYSCALL:
-        case PTRACE_CONT: /* restart after signal. */
-        {
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                if (request == PTRACE_SYSCALL)
-                        set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                else
-                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                child->exit_code = data;
-                /* Make sure the single step bit is not set. */
-                child->ptrace &= ~PT_SINGLESTEP;
-                wake_up_process(child);
-                ret = 0;
-                break;
-        }
-
-        /*
-         * make the child exit.  Best I can do is send it a sigkill.
-         * perhaps it should be put in the status that it wants to
-         * exit.
-         */
-        case PTRACE_KILL:
-                ret = 0;
-                if (child->exit_state == EXIT_ZOMBIE)   /* already dead */
-                        break;
-                child->exit_code = SIGKILL;
-                child->ptrace &= ~PT_SINGLESTEP;
-                wake_up_process(child);
-                break;
-
-        case PTRACE_SINGLESTEP:
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                child->ptrace |= PT_SINGLESTEP;
-                child->exit_code = data;
-                wake_up_process(child);
-                ret = 0;
-                break;
-
         case PTRACE_GETREGS:
                 ret = ptrace_getregs(child, (void __user *) data);
                 break;
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index ac15ecbdf919..816e6d0d686c 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -39,49 +39,6 @@ syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= {
 #include <asm/unistd.h>
 };
 
-/*
- * xtensa_pipe() is the normal C calling standard for creating a pipe. It's not
- * the way unix traditional does this, though.
- */
-
-asmlinkage long xtensa_pipe(int __user *userfds)
-{
-        int fd[2];
-        int error;
-
-        error = do_pipe_flags(fd, 0);
-        if (!error) {
-                if (copy_to_user(userfds, fd, 2 * sizeof(int)))
-                        error = -EFAULT;
-        }
-        return error;
-}
-
-
-asmlinkage long xtensa_mmap2(unsigned long addr, unsigned long len,
-                             unsigned long prot, unsigned long flags,
-                             unsigned long fd, unsigned long pgoff)
-{
-        int error = -EBADF;
-        struct file * file = NULL;
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-        if (!(flags & MAP_ANONYMOUS)) {
-                file = fget(fd);
-                if (!file)
-                        goto out;
-        }
-
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-        up_write(&current->mm->mmap_sem);
-
-        if (file)
-                fput(file);
-out:
-        return error;
-}
-
 asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
 {
         unsigned long ret;