Merge commit 'v2.6.28' into core/core

7 files changed, 29 insertions, 64 deletions

diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index b7cbb1487af4..62fba8aa9b6e 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -180,6 +180,7 @@ ENTRY(resume_userspace)
 
 #ifdef CONFIG_PREEMPT
 ENTRY(resume_kernel)
+        __cli
         mov     (TI_preempt_count,a2),d0        # non-zero preempt_count ?
         cmp     0,d0
         bne     restore_all
@@ -190,7 +191,7 @@ need_resched:
         mov     (REG_EPSW,fp),d0
         and     EPSW_IM,d0
         cmp     EPSW_IM_7,d0            # interrupts off (exception path) ?
-        beq     restore_all
+        bne     restore_all
         call    preempt_schedule_irq[],0
         jmp     need_resched
 #endif
diff --git a/arch/mn10300/kernel/gdb-io-serial.c b/arch/mn10300/kernel/gdb-io-serial.c
index 9a6d4e8ebe73..11584c51acd9 100644
--- a/arch/mn10300/kernel/gdb-io-serial.c
+++ b/arch/mn10300/kernel/gdb-io-serial.c
@@ -99,6 +99,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
  try_again:
         /* pull chars out of the buffer */
         ix = gdbstub_rx_outp;
+        barrier();
         if (ix == gdbstub_rx_inp) {
                 if (nonblock)
                         return -EAGAIN;
@@ -110,6 +111,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
 
         ch = gdbstub_rx_buffer[ix++];
         st = gdbstub_rx_buffer[ix++];
+        barrier();
         gdbstub_rx_outp = ix & 0x00000fff;
 
         if (st & UART_LSR_BI) {
diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c
index 54be6afb5555..0ea7482c1522 100644
--- a/arch/mn10300/kernel/gdb-stub.c
+++ b/arch/mn10300/kernel/gdb-stub.c
@@ -522,17 +522,7 @@ static int gdbstub_single_step(struct pt_regs *regs)
         } else {
                 switch (cur) {
                         /* Bxx (d8,PC) */
-                case 0xc0:
-                case 0xc1:
-                case 0xc2:
-                case 0xc3:
-                case 0xc4:
-                case 0xc5:
-                case 0xc6:
-                case 0xc7:
-                case 0xc8:
-                case 0xc9:
-                case 0xca:
+                case 0xc0 ... 0xca:
                         if (gdbstub_read_byte(pc + 1, (u8 *) &x) < 0)
                                 goto fault;
                         if (!__gdbstub_mark_bp(pc + 2, 0))
@@ -543,17 +533,7 @@ static int gdbstub_single_step(struct pt_regs *regs)
                         break;
 
                         /* LXX (d8,PC) */
-                case 0xd0:
-                case 0xd1:
-                case 0xd2:
-                case 0xd3:
-                case 0xd4:
-                case 0xd5:
-                case 0xd6:
-                case 0xd7:
-                case 0xd8:
-                case 0xd9:
-                case 0xda:
+                case 0xd0 ... 0xda:
                         if (!__gdbstub_mark_bp(pc + 1, 0))
                                 goto fault;
                         if (regs->pc != regs->lar &&
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index aa07d0cd1905..59b9c4bf9583 100644
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -566,6 +566,11 @@ static void mn10300_serial_transmit_interrupt(struct mn10300_serial_port *port)
 {
         _enter("%s", port->name);
 
+        if (!port->uart.info || !port->uart.info->port.tty) {
+                mn10300_serial_dis_tx_intr(port);
+                return;
+        }
+
         if (uart_tx_stopped(&port->uart) ||
             uart_circ_empty(&port->uart.info->xmit))
                 mn10300_serial_dis_tx_intr(port);
diff --git a/arch/mn10300/kernel/module.c b/arch/mn10300/kernel/module.c
index 8fa36893df7a..6b287f2e8e84 100644
--- a/arch/mn10300/kernel/module.c
+++ b/arch/mn10300/kernel/module.c
@@ -1,6 +1,6 @@
 /* MN10300 Kernel module helper routines
  *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2007, 2008 Red Hat, Inc. All Rights Reserved.
  * Written by Mark Salter (msalter@redhat.com)
  * - Derived from arch/i386/kernel/module.c
  *
@@ -64,21 +64,6 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
         return 0;
 }
 
-static uint32_t reloc_get16(uint8_t *p)
-{
-        return p[0] | (p[1] << 8);
-}
-
-static uint32_t reloc_get24(uint8_t *p)
-{
-        return reloc_get16(p) | (p[2] << 16);
-}
-
-static uint32_t reloc_get32(uint8_t *p)
-{
-        return reloc_get16(p) | (reloc_get16(p+2) << 16);
-}
-
 static void reloc_put16(uint8_t *p, uint32_t val)
 {
         p[0] = val & 0xff;
@@ -144,25 +129,19 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
                 relocation = sym->st_value + rel[i].r_addend;
 
                 switch (ELF32_R_TYPE(rel[i].r_info)) {
-                        /* for the first four relocation types, we add the
-                         * adjustment into the value at the location given */
+                        /* for the first four relocation types, we simply
+                         * store the adjustment at the location given */
                 case R_MN10300_32:
-                        value = reloc_get32(location);
-                        value += relocation;
-                        reloc_put32(location, value);
+                        reloc_put32(location, relocation);
                         break;
                 case R_MN10300_24:
-                        value = reloc_get24(location);
-                        value += relocation;
-                        reloc_put24(location, value);
+                        reloc_put24(location, relocation);
                         break;
                 case R_MN10300_16:
-                        value = reloc_get16(location);
-                        value += relocation;
-                        reloc_put16(location, value);
+                        reloc_put16(location, relocation);
                         break;
                 case R_MN10300_8:
-                        *location += relocation;
+                        *location = relocation;
                         break;
 
                         /* for the next three relocation types, we write the
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c
index 017121ce896f..e1d88ab51008 100644
--- a/arch/mn10300/kernel/setup.c
+++ b/arch/mn10300/kernel/setup.c
@@ -161,7 +161,7 @@ void __init setup_arch(char **cmdline_p)
            reserve the page it is occupying. */
         if (CONFIG_INTERRUPT_VECTOR_BASE >= CONFIG_KERNEL_RAM_BASE_ADDRESS &&
             CONFIG_INTERRUPT_VECTOR_BASE < memory_end)
-                reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, 1,
+                reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, PAGE_SIZE,
                                 BOOTMEM_DEFAULT);
 
         reserve_bootmem(PAGE_ALIGN(PFN_PHYS(free_pfn)), bootmap_size,
diff --git a/arch/mn10300/kernel/vmlinux.lds.S b/arch/mn10300/kernel/vmlinux.lds.S
index a3e80f444f55..b8259668f7dc 100644
--- a/arch/mn10300/kernel/vmlinux.lds.S
+++ b/arch/mn10300/kernel/vmlinux.lds.S
@@ -11,6 +11,7 @@
 #define __VMLINUX_LDS__
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/thread_info.h>
+#include <asm/page.h>
 
 OUTPUT_FORMAT("elf32-am33lin", "elf32-am33lin", "elf32-am33lin")
 OUTPUT_ARCH(mn10300)
@@ -55,13 +56,13 @@ SECTIONS
         CONSTRUCTORS
         }
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __nosave_begin = .;
   .data_nosave : { *(.data.nosave) }
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __nosave_end = .;
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .data.page_aligned : { *(.data.idt) }
 
   . = ALIGN(32);
@@ -78,7 +79,7 @@ SECTIONS
   .data.init_task : { *(.data.init_task) }
 
   /* might get freed after init */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
         __smp_locks = .;
         *(.smp_locks)
@@ -86,7 +87,7 @@ SECTIONS
   }
 
   /* will be freed after init */
-  . = ALIGN(4096);              /* Init code and data */
+  . = ALIGN(PAGE_SIZE);         /* Init code and data */
   __init_begin = .;
   .init.text : {
         _sinittext = .;
@@ -120,17 +121,14 @@ SECTIONS
   .exit.data : { *(.exit.data) }
 
 #ifdef CONFIG_BLK_DEV_INITRD
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __initramfs_start = .;
   .init.ramfs : { *(.init.ramfs) }
   __initramfs_end = .;
 #endif
 
-  . = ALIGN(32);
-  __per_cpu_start = .;
-  .data.percpu  : { *(.data.percpu) }
-  __per_cpu_end = .;
-  . = ALIGN(4096);
+  PERCPU(32)
+  . = ALIGN(PAGE_SIZE);
   __init_end = .;
   /* freed after init ends here */
 
@@ -145,7 +143,7 @@ SECTIONS
   _end = . ;
 
   /* This is where the kernel creates the early boot page tables */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   pg0 = .;
 
   /* Sections to be discarded */