13 files changed, 22 insertions, 43 deletions

diff --git a/arch/um/Makefile b/arch/um/Makefile
index 0728def32234..fc633dbacf84 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -96,11 +96,10 @@ CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,)
         $(call cc-option, -fno-stack-protector,) \
         $(call cc-option, -fno-stack-protector-all,)
 
-CONFIG_KERNEL_STACK_ORDER ?= 2
-STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
-
-CPPFLAGS_vmlinux.lds = -U$(SUBARCH) -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \
-        -DELF_FORMAT="$(ELF_FORMAT)" -DKERNEL_STACK_SIZE=$(STACK_SIZE)
+# Options used by linker script
+export LDS_START      := $(START)
+export LDS_ELF_ARCH   := $(ELF_ARCH)
+export LDS_ELF_FORMAT := $(ELF_FORMAT)
 
 # The wrappers will select whether using "malloc" or the kernel allocator.
 LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index f114813ae258..a74245ae3a84 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -533,7 +533,7 @@ static int eth_parse(char *str, int *index_out, char **str_out,
                      char **error_out)
 {
         char *end;
-        int n, err = -EINVAL;;
+        int n, err = -EINVAL;
 
         n = simple_strtoul(str, &end, 0);
         if (end == str) {
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 8f05d4d9da12..635d16d90a80 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -106,7 +106,7 @@ static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
 
 #define MAX_DEV (16)
 
-static struct block_device_operations ubd_blops = {
+static const struct block_device_operations ubd_blops = {
         .owner          = THIS_MODULE,
         .open           = ubd_open,
         .release        = ubd_release,
diff --git a/arch/um/include/asm/hardirq.h b/arch/um/include/asm/hardirq.h
index 313ebb8a2566..fb3c05a0cbbf 100644
--- a/arch/um/include/asm/hardirq.h
+++ b/arch/um/include/asm/hardirq.h
@@ -1,25 +1 @@
-/* (c) 2004 cw@f00f.org, GPLv2 blah blah */
-
-#ifndef __ASM_UM_HARDIRQ_H
-#define __ASM_UM_HARDIRQ_H
-
-#include <linux/threads.h>
-#include <linux/irq.h>
-
-/* NOTE: When SMP works again we might want to make this
- * ____cacheline_aligned or maybe use per_cpu state? --cw */
-typedef struct {
-        unsigned int __softirq_pending;
-} irq_cpustat_t;
-
-#include <linux/irq_cpustat.h>
-
-/* As this would be very strange for UML to get we BUG() after the
- * printk. */
-static inline void ack_bad_irq(unsigned int irq)
-{
-        printk(KERN_ERR "unexpected IRQ %02x\n", irq);
-        BUG();
-}
-
-#endif /* __ASM_UM_HARDIRQ_H */
+#include <asm-generic/hardirq.h>
diff --git a/arch/um/include/asm/mmu_context.h b/arch/um/include/asm/mmu_context.h
index 54f42e8b0105..34d813011b7a 100644
--- a/arch/um/include/asm/mmu_context.h
+++ b/arch/um/include/asm/mmu_context.h
@@ -35,8 +35,8 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
         unsigned cpu = smp_processor_id();
 
         if(prev != next){
-                cpu_clear(cpu, prev->cpu_vm_mask);
-                cpu_set(cpu, next->cpu_vm_mask);
+                cpumask_clear_cpu(cpu, mm_cpumask(prev));
+                cpumask_set_cpu(cpu, mm_cpumask(next));
                 if(next != &init_mm)
                         __switch_mm(&next->context.id);
         }
diff --git a/arch/um/include/shared/ptrace_user.h b/arch/um/include/shared/ptrace_user.h
index 4bce6e012889..7fd8539bc19a 100644
--- a/arch/um/include/shared/ptrace_user.h
+++ b/arch/um/include/shared/ptrace_user.h
@@ -29,7 +29,7 @@ extern int ptrace_setregs(long pid, unsigned long *regs_in);
  * recompilation. So, we use PTRACE_OLDSETOPTIONS in UML.
  * We also want to be able to build the kernel on 2.4, which doesn't
  * have PTRACE_OLDSETOPTIONS. So, if it is missing, we declare
- * PTRACE_OLDSETOPTIONS to to be the same as PTRACE_SETOPTIONS.
+ * PTRACE_OLDSETOPTIONS to be the same as PTRACE_SETOPTIONS.
  *
  * On architectures, that start to support PTRACE_O_TRACESYSGOOD on
  * linux 2.6, PTRACE_OLDSETOPTIONS never is defined, and also isn't
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 388ec0a3ea9b..1119233597a1 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -3,6 +3,9 @@
 # Licensed under the GPL
 #
 
+CPPFLAGS_vmlinux.lds := -U$(SUBARCH) -DSTART=$(LDS_START) \
+                        -DELF_ARCH=$(LDS_ELF_ARCH)        \
+                        -DELF_FORMAT=$(LDS_ELF_FORMAT)
 extra-y := vmlinux.lds
 clean-files :=
 
diff --git a/arch/um/kernel/init_task.c b/arch/um/kernel/init_task.c
index b25121b537d8..8aa77b61a5ff 100644
--- a/arch/um/kernel/init_task.c
+++ b/arch/um/kernel/init_task.c
@@ -30,9 +30,8 @@ EXPORT_SYMBOL(init_task);
  * "init_task" linker map entry..
  */
 
-union thread_union init_thread_union
-        __attribute__((__section__(".data.init_task"))) =
-                { INIT_THREAD_INFO(init_task) };
+union thread_union init_thread_union __init_task_data =
+        { INIT_THREAD_INFO(init_task) };
 
 union thread_union cpu0_irqstack
         __attribute__((__section__(".data.init_irqstack"))) =
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 61d7e6138ff5..a5d5e70cf6f5 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -77,7 +77,7 @@ void __init mem_init(void)
         num_physpages = totalram_pages;
         max_pfn = totalram_pages;
         printk(KERN_INFO "Memory: %luk available\n",
-               (unsigned long) nr_free_pages() << (PAGE_SHIFT-10));
+               nr_free_pages() << (PAGE_SHIFT-10));
         kmalloc_ok = 1;
 
 #ifdef CONFIG_HIGHMEM
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 0cd9a7a05e77..8bfd1e905812 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -38,10 +38,10 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
         *pte = pte_mkread(*pte);
         return 0;
 
- out_pmd:
-        pud_free(mm, pud);
  out_pte:
         pmd_free(mm, pmd);
+ out_pmd:
+        pud_free(mm, pud);
  out:
         return -ENOMEM;
 }
diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c
index 98351c78bc81..106bf27e2a9a 100644
--- a/arch/um/kernel/smp.c
+++ b/arch/um/kernel/smp.c
@@ -111,7 +111,7 @@ void smp_prepare_cpus(unsigned int maxcpus)
         int i;
 
         for (i = 0; i < ncpus; ++i)
-                cpu_set(i, cpu_possible_map);
+                set_cpu_possible(i, true);
 
         cpu_clear(me, cpu_online_map);
         cpu_set(me, cpu_online_map);
diff --git a/arch/um/kernel/vmlinux.lds.S b/arch/um/kernel/vmlinux.lds.S
index f8aeb448aab6..16e49bfa2b42 100644
--- a/arch/um/kernel/vmlinux.lds.S
+++ b/arch/um/kernel/vmlinux.lds.S
@@ -1,3 +1,6 @@
+
+KERNEL_STACK_SIZE = 4096 * (1 << CONFIG_KERNEL_STACK_ORDER);
+
 #ifdef CONFIG_LD_SCRIPT_STATIC
 #include "uml.lds.S"
 #else
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index 30860b89ec58..b6b1096152aa 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -15,7 +15,6 @@
 #include "os.h"
 #include "um_malloc.h"
 #include "user.h"
-#include <linux/limits.h>
 
 struct helper_data {
         void (*pre_exec)(void*);