12 files changed, 39 insertions, 34 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 18ec9fe6deb6..c6fe99e57a05 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -467,7 +467,7 @@ endchoice
 
 choice
         depends on EXPERIMENTAL && !X86_PAE
-        prompt "Memory split"
+        prompt "Memory split" if EMBEDDED
         default VMSPLIT_3G
         help
           Select the desired split between kernel and user memory.
@@ -756,7 +756,7 @@ config PHYSICAL_START
 
 config HOTPLUG_CPU
         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-        depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER && !X86_PC
+        depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER
         ---help---
           Say Y here to experiment with turning CPUs off and on.  CPUs
           can be controlled through /sys/devices/system/cpu.
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 049a25583793..40e5aba3ad3d 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -215,7 +215,7 @@ static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
 {
         struct acpi_table_madt *madt = NULL;
 
-        if (!phys_addr || !size || !cpu_has_apic)
+        if (!phys_addr || !size)
                 return -EINVAL;
 
         madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size);
@@ -1102,9 +1102,6 @@ int __init acpi_boot_table_init(void)
         dmi_check_system(acpi_dmi_table);
 #endif
 
-        if (!cpu_has_apic)
-                return -ENODEV;
-
         /*
          * If acpi_disabled, bail out
          * One exception: acpi=ht continues far enough to enumerate LAPICs
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index 254cee9f0b7b..013b85df18c6 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -757,10 +757,6 @@ static int __init apic_set_verbosity(char *str)
                 apic_verbosity = APIC_DEBUG;
         else if (strcmp("verbose", str) == 0)
                 apic_verbosity = APIC_VERBOSE;
-        else
-                printk(KERN_WARNING "APIC Verbosity level %s not recognised"
-                                " use apic=verbose or apic=debug\n", str);
-
         return 1;
 }
 
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index f8f132aa5472..d70f2ade5cde 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -2238,6 +2238,8 @@ static inline void unlock_ExtINT_logic(void)
         spin_unlock_irqrestore(&ioapic_lock, flags);
 }
 
+int timer_uses_ioapic_pin_0;
+
 /*
  * This code may look a bit paranoid, but it's supposed to cooperate with
  * a wide range of boards and BIOS bugs.  Fortunately only the timer IRQ
@@ -2274,6 +2276,9 @@ static inline void check_timer(void)
         pin2  = ioapic_i8259.pin;
         apic2 = ioapic_i8259.apic;
 
+        if (pin1 == 0)
+                timer_uses_ioapic_pin_0 = 1;
+
         printk(KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n",
                 vector, apic1, pin1, apic2, pin2);
 
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index 043f5292e70a..38806f427849 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -242,10 +242,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
                         kcb->kprobe_status = KPROBE_REENTER;
                         return 1;
                 } else {
-                        if (regs->eflags & VM_MASK) {
-                        /* We are in virtual-8086 mode. Return 0 */
-                                goto no_kprobe;
-                        }
                         if (*addr != BREAKPOINT_INSTRUCTION) {
                         /* The breakpoint instruction was removed by
                          * another cpu right after we hit, no further
@@ -265,11 +261,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 
         p = get_kprobe(addr);
         if (!p) {
-                if (regs->eflags & VM_MASK) {
-                        /* We are in virtual-8086 mode. Return 0 */
-                        goto no_kprobe;
-                }
-
                 if (*addr != BREAKPOINT_INSTRUCTION) {
                         /*
                          * The breakpoint instruction was removed right
@@ -452,10 +443,11 @@ static void __kprobes resume_execution(struct kprobe *p,
                 *tos &= ~(TF_MASK | IF_MASK);
                 *tos |= kcb->kprobe_old_eflags;
                 break;
-        case 0xc3:              /* ret/lret */
-        case 0xcb:
-        case 0xc2:
+        case 0xc2:              /* iret/ret/lret */
+        case 0xc3:
         case 0xca:
+        case 0xcb:
+        case 0xcf:
         case 0xea:              /* jmp absolute -- eip is correct */
                 /* eip is already adjusted, no more changes required */
                 p->ainsn.boostable = 1;
@@ -463,10 +455,13 @@ static void __kprobes resume_execution(struct kprobe *p,
         case 0xe8:              /* call relative - Fix return addr */
                 *tos = orig_eip + (*tos - copy_eip);
                 break;
+        case 0x9a:              /* call absolute -- same as call absolute, indirect */
+                *tos = orig_eip + (*tos - copy_eip);
+                goto no_change;
         case 0xff:
                 if ((p->ainsn.insn[1] & 0x30) == 0x10) {
-                        /* call absolute, indirect */
                         /*
+                         * call absolute, indirect
                          * Fix return addr; eip is correct.
                          * But this is not boostable
                          */
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 34d21e21e012..6b1392d33ed5 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -1130,7 +1130,17 @@ int mp_register_gsi (u32 gsi, int triggering, int polarity)
                  */
                 int irq = gsi;
                 if (gsi < MAX_GSI_NUM) {
-                        if (gsi > 15)
+                        /*
+                         * Retain the VIA chipset work-around (gsi > 15), but
+                         * avoid a problem where the 8254 timer (IRQ0) is setup
+                         * via an override (so it's not on pin 0 of the ioapic),
+                         * and at the same time, the pin 0 interrupt is a PCI
+                         * type.  The gsi > 15 test could cause these two pins
+                         * to be shared as IRQ0, and they are not shareable.
+                         * So test for this condition, and if necessary, avoid
+                         * the pin collision.
+                         */
+                        if (gsi > 15 || (gsi == 0 && !timer_uses_ioapic_pin_0))
                                 gsi = pci_irq++;
                         /*
                          * Don't assign IRQ used by ACPI SCI
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 506462ef36a0..fd7eaf7866e0 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -671,7 +671,7 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
 
         if (unlikely(current->audit_context)) {
                 if (entryexit)
-                        audit_syscall_exit(current, AUDITSC_RESULT(regs->eax),
+                        audit_syscall_exit(AUDITSC_RESULT(regs->eax),
                                                 regs->eax);
                 /* Debug traps, when using PTRACE_SINGLESTEP, must be sent only
                  * on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is
@@ -720,14 +720,13 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
         ret = is_sysemu;
 out:
         if (unlikely(current->audit_context) && !entryexit)
-                audit_syscall_entry(current, AUDIT_ARCH_I386, regs->orig_eax,
+                audit_syscall_entry(AUDIT_ARCH_I386, regs->orig_eax,
                                     regs->ebx, regs->ecx, regs->edx, regs->esi);
         if (ret == 0)
                 return 0;
 
         regs->orig_eax = -1; /* force skip of syscall restarting */
         if (unlikely(current->audit_context))
-                audit_syscall_exit(current, AUDITSC_RESULT(regs->eax),
-                                regs->eax);
+                audit_syscall_exit(AUDITSC_RESULT(regs->eax), regs->eax);
         return 1;
 }
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 80cb3b2d0997..d77e89ac0d54 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -970,8 +970,10 @@ efi_memory_present_wrapper(unsigned long start, unsigned long end, void *arg)
   * not-overlapping, which is the case
   */
 int __init
-e820_all_mapped(unsigned long start, unsigned long end, unsigned type)
+e820_all_mapped(unsigned long s, unsigned long e, unsigned type)
 {
+        u64 start = s;
+        u64 end = e;
         int i;
         for (i = 0; i < e820.nr_map; i++) {
                 struct e820entry *ei = &e820.map[i];
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index a6969903f2d6..825b2b4ca721 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -313,7 +313,9 @@ static void __init synchronize_tsc_bp (void)
                         if (tsc_values[i] < avg)
                                 realdelta = -realdelta;
 
-                        printk(KERN_INFO "CPU#%d had %ld usecs TSC skew, fixed it up.\n", i, realdelta);
+                        if (realdelta > 0)
+                                printk(KERN_INFO "CPU#%d had %ld usecs TSC "
+                                        "skew, fixed it up.\n", i, realdelta);
                 }
 
                 sum += delta;
diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c
index 5e41ee29c8cf..f1187ddb0d0f 100644
--- a/arch/i386/kernel/timers/timer_tsc.c
+++ b/arch/i386/kernel/timers/timer_tsc.c
@@ -279,7 +279,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
 {
         struct cpufreq_freqs *freq = data;
 
-        if (val != CPUFREQ_RESUMECHANGE)
+        if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE)
                 write_seqlock_irq(&xtime_lock);
         if (!ref_freq) {
                 if (!freq->old){
@@ -312,7 +312,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
         }
 
 end:
-        if (val != CPUFREQ_RESUMECHANGE)
+        if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE)
                 write_sequnlock_irq(&xtime_lock);
 
         return 0;
diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c
index aee14fafd13d..00e0118e717c 100644
--- a/arch/i386/kernel/vm86.c
+++ b/arch/i386/kernel/vm86.c
@@ -312,7 +312,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 
         /*call audit_syscall_exit since we do not exit via the normal paths */
         if (unlikely(current->audit_context))
-                audit_syscall_exit(current, AUDITSC_RESULT(eax), eax);
+                audit_syscall_exit(AUDITSC_RESULT(eax), eax);
 
         __asm__ __volatile__(
                 "movl %0,%%esp\n\t"
diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c
index 73235443fda7..06dab00aaadc 100644
--- a/arch/i386/pci/irq.c
+++ b/arch/i386/pci/irq.c
@@ -591,7 +591,6 @@ static __init int via_router_probe(struct irq_router *r,
         case PCI_DEVICE_ID_VIA_8233A:
         case PCI_DEVICE_ID_VIA_8235:
         case PCI_DEVICE_ID_VIA_8237:
-        case PCI_DEVICE_ID_VIA_8237_SATA:
                 /* FIXME: add new ones for 8233/5 */
                 r->name = "VIA";
                 r->get = pirq_via_get;