39 files changed, 195 insertions, 127 deletions

diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c
index c645c5e14786..2b245ad731ee 100644
--- a/arch/alpha/kernel/alpha_ksyms.c
+++ b/arch/alpha/kernel/alpha_ksyms.c
@@ -182,7 +182,6 @@ EXPORT_SYMBOL(smp_num_cpus);
 EXPORT_SYMBOL(smp_call_function);
 EXPORT_SYMBOL(smp_call_function_on_cpu);
 EXPORT_SYMBOL(_atomic_dec_and_lock);
-EXPORT_SYMBOL(cpu_present_mask);
 #endif /* CONFIG_SMP */
 
 /*
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 9924fd07743a..c760a831fd1a 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -94,7 +94,7 @@ common_shutdown_1(void *generic_ptr)
         if (cpuid != boot_cpuid) {
                 flags |= 0x00040000UL; /* "remain halted" */
                 *pflags = flags;
-                clear_bit(cpuid, &cpu_present_mask);
+                cpu_clear(cpuid, cpu_present_map);
                 halt();
         }
 #endif
@@ -120,8 +120,8 @@ common_shutdown_1(void *generic_ptr)
 
 #ifdef CONFIG_SMP
         /* Wait for the secondaries to halt. */
-        cpu_clear(boot_cpuid, cpu_possible_map);
-        while (cpus_weight(cpu_possible_map))
+        cpu_clear(boot_cpuid, cpu_present_map);
+        while (cpus_weight(cpu_present_map))
                 barrier();
 #endif
 
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 185255416e85..4dc273e537fd 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -68,7 +68,6 @@ enum ipi_message_type {
 static int smp_secondary_alive __initdata = 0;
 
 /* Which cpus ids came online.  */
-cpumask_t cpu_present_mask;
 cpumask_t cpu_online_map;
 
 EXPORT_SYMBOL(cpu_online_map);
@@ -439,7 +438,7 @@ setup_smp(void)
                         if ((cpu->flags & 0x1cc) == 0x1cc) {
                                 smp_num_probed++;
                                 /* Assume here that "whami" == index */
-                                cpu_set(i, cpu_present_mask);
+                                cpu_set(i, cpu_present_map);
                                 cpu->pal_revision = boot_cpu_palrev;
                         }
 
@@ -450,11 +449,10 @@ setup_smp(void)
                 }
         } else {
                 smp_num_probed = 1;
-                cpu_set(boot_cpuid, cpu_present_mask);
         }
 
-        printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_mask = %lx\n",
-               smp_num_probed, cpu_possible_map.bits[0]);
+        printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_map = %lx\n",
+               smp_num_probed, cpu_present_map.bits[0]);
 }
 
 /*
@@ -473,7 +471,7 @@ smp_prepare_cpus(unsigned int max_cpus)
 
         /* Nothing to do on a UP box, or when told not to.  */
         if (smp_num_probed == 1 || max_cpus == 0) {
-                cpu_present_mask = cpumask_of_cpu(boot_cpuid);
+                cpu_present_map = cpumask_of_cpu(boot_cpuid);
                 printk(KERN_INFO "SMP mode deactivated.\n");
                 return;
         }
@@ -486,10 +484,6 @@ smp_prepare_cpus(unsigned int max_cpus)
 void __devinit
 smp_prepare_boot_cpu(void)
 {
-        /*
-         * Mark the boot cpu (current cpu) as online
-         */ 
-        cpu_set(smp_processor_id(), cpu_online_map);
 }
 
 int __devinit
diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
index 5f84417eeb7b..2551fb49ae09 100644
--- a/arch/alpha/kernel/sys_titan.c
+++ b/arch/alpha/kernel/sys_titan.c
@@ -66,7 +66,7 @@ titan_update_irq_hw(unsigned long mask)
         register int bcpu = boot_cpuid;
 
 #ifdef CONFIG_SMP
-        cpumask_t cpm = cpu_present_mask;
+        cpumask_t cpm = cpu_present_map;
         volatile unsigned long *dim0, *dim1, *dim2, *dim3;
         unsigned long mask0, mask1, mask2, mask3, dummy;
 
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 5d3acff8c596..d22f38b957db 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -101,7 +101,7 @@ config DEBUG_S3C2410_UART
         help
           Choice for UART for kernel low-level using S3C2410 UARTS,
           should be between zero and two. The port must have been
-          initalised by the boot-loader before use.
+          initialised by the boot-loader before use.
 
           The uncompressor code port configuration is now handled
           by CONFIG_S3C2410_LOWLEVEL_UART_PORT.
diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
index 2a39f9e481ad..3b23f43cb160 100644
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -141,7 +141,7 @@ config IXP4XX_INDIRECT_PCI
           2) If > 64MB of memory space is required, the IXP4xx can be 
              configured to use indirect registers to access PCI This allows 
              for up to 128MB (0x48000000 to 0x4fffffff) of memory on the bus. 
-             The disadvantadge of this is that every PCI access requires 
+             The disadvantage of this is that every PCI access requires 
              three local register accesses plus a spinlock, but in some 
              cases the performance hit is acceptable. In addition, you cannot 
              mmap() PCI devices in this case due to the indirect nature
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 02e188d98e7d..b307f11951df 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -493,6 +493,7 @@ static void __init mainstone_map_io(void)
 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
         /* Maintainer: MontaVista Software Inc. */
         .phys_io        = 0x40000000,
+        .boot_params    = 0xa0000100,   /* BLOB boot parameter setting */
         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
         .map_io         = mainstone_map_io,
         .init_irq       = mainstone_init_irq,
diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig
index ce7d81000695..970f98dadffc 100644
--- a/arch/arm/mach-s3c2410/Kconfig
+++ b/arch/arm/mach-s3c2410/Kconfig
@@ -170,7 +170,7 @@ config S3C2410_PM_DEBUG
         depends on ARCH_S3C2410 && PM
         help
           Say Y here if you want verbose debugging from the PM Suspend and
-          Resume code. See `Documentation/arm/Samsing-S3C24XX/Suspend.txt`
+          Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
           for more information.
 
 config S3C2410_PM_CHECK
diff --git a/arch/mips/au1000/common/prom.c b/arch/mips/au1000/common/prom.c
index 9c171afd9a53..ae7d8c57bf3f 100644
--- a/arch/mips/au1000/common/prom.c
+++ b/arch/mips/au1000/common/prom.c
@@ -1,10 +1,9 @@
 /*
  *
  * BRIEF MODULE DESCRIPTION
- *    PROM library initialisation code, assuming a version of
- *    pmon is the boot code.
+ *    PROM library initialisation code, assuming YAMON is the boot loader.
  *
- * Copyright 2000,2001 MontaVista Software Inc.
+ * Copyright 2000, 2001, 2006 MontaVista Software Inc.
  * Author: MontaVista Software, Inc.
  *              ppopov@mvista.com or source@mvista.com
  *
@@ -49,9 +48,9 @@ extern char **prom_argv, **prom_envp;
 
 typedef struct
 {
-    char *name;
-/*    char *val; */
-}t_env_var;
+        char *name;
+        char *val;
+} t_env_var;
 
 
 char * prom_getcmdline(void)
@@ -85,21 +84,16 @@ char *prom_getenv(char *envname)
 {
         /*
          * Return a pointer to the given environment variable.
-         * Environment variables are stored in the form of "memsize=64".
          */
 
         t_env_var *env = (t_env_var *)prom_envp;
-        int i;
-
-        i = strlen(envname);
 
-        while(env->name) {
-                if(strncmp(envname, env->name, i) == 0) {
-                        return(env->name + strlen(envname) + 1);
-                }
+        while (env->name) {
+                if (strcmp(envname, env->name) == 0)
+                        return env->val;
                 env++;
         }
-        return(NULL);
+        return NULL;
 }
 
 inline unsigned char str2hexnum(unsigned char c)
diff --git a/arch/mips/au1000/common/sleeper.S b/arch/mips/au1000/common/sleeper.S
index 44dac3b0df3b..683d9da84b66 100644
--- a/arch/mips/au1000/common/sleeper.S
+++ b/arch/mips/au1000/common/sleeper.S
@@ -112,6 +112,11 @@ sdsleep:
         mtc0    k0, CP0_PAGEMASK
         lw      k0, 0x14(sp)
         mtc0    k0, CP0_CONFIG
+
+        /* We need to catch the ealry Alchemy SOCs with
+         * the write-only Config[OD] bit and set it back to one...
+         */
+        jal     au1x00_fixup_config_od
         lw      $1, PT_R1(sp)
         lw      $2, PT_R2(sp)
         lw      $3, PT_R3(sp)
diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c
index 47a087b6c11b..d268827c62bd 100644
--- a/arch/mips/kernel/cpu-bugs64.c
+++ b/arch/mips/kernel/cpu-bugs64.c
@@ -206,7 +206,7 @@ static inline void check_daddi(void)
                 "daddi  %0, %1, %3\n\t"
                 ".set   pop"
                 : "=r" (v), "=&r" (tmp)
-                : "I" (0xffffffffffffdb9a), "I" (0x1234));
+                : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
         set_except_vector(12, handler);
         local_irq_restore(flags);
 
@@ -224,7 +224,7 @@ static inline void check_daddi(void)
                 "dsrl   %1, %1, 1\n\t"
                 "daddi  %0, %1, %3"
                 : "=r" (v), "=&r" (tmp)
-                : "I" (0xffffffffffffdb9a), "I" (0x1234));
+                : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
         set_except_vector(12, handler);
         local_irq_restore(flags);
 
@@ -280,7 +280,7 @@ static inline void check_daddiu(void)
                 "daddu  %1, %2\n\t"
                 ".set   pop"
                 : "=&r" (v), "=&r" (w), "=&r" (tmp)
-                : "I" (0xffffffffffffdb9a), "I" (0x1234));
+                : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
 
         if (v == w) {
                 printk("no.\n");
@@ -296,7 +296,7 @@ static inline void check_daddiu(void)
                 "addiu  %1, $0, %4\n\t"
                 "daddu  %1, %2"
                 : "=&r" (v), "=&r" (w), "=&r" (tmp)
-                : "I" (0xffffffffffffdb9a), "I" (0x1234));
+                : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
 
         if (v == w) {
                 printk("yes.\n");
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index bef3e2dc7c52..8c2c359a05f4 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -655,7 +655,7 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
         case PRID_IMP_SB1:
                 c->cputype = CPU_SB1;
                 /* FPU in pass1 is known to have issues. */
-                if ((c->processor_id & 0xff) < 0x20)
+                if ((c->processor_id & 0xff) < 0x02)
                         c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR);
                 break;
         case PRID_IMP_SB1A:
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index e54a7f442f8a..d7bf0215bc1d 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -288,6 +288,9 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
                 sym = (Elf_Sym *)sechdrs[symindex].sh_addr
                         + ELF_MIPS_R_SYM(rel[i]);
                 if (!sym->st_value) {
+                        /* Ignore unresolved weak symbol */
+                        if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
+                                continue;
                         printk(KERN_WARNING "%s: Unknown symbol %s\n",
                                me->name, strtab + sym->st_name);
                         return -ENOENT;
@@ -325,6 +328,9 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
                 sym = (Elf_Sym *)sechdrs[symindex].sh_addr
                         + ELF_MIPS_R_SYM(rel[i]);
                 if (!sym->st_value) {
+                        /* Ignore unresolved weak symbol */
+                        if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
+                                continue;
                         printk(KERN_WARNING "%s: Unknown symbol %s\n",
                                me->name, strtab + sym->st_name);
                         return -ENOENT;
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index b53a9207f530..8efb23a84131 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -209,7 +209,7 @@ sys_call_table:
         PTR     sys_fork
         PTR     sys_read
         PTR     sys_write
-        PTR     sys_open                        /* 4005 */
+        PTR     compat_sys_open                 /* 4005 */
         PTR     sys_close
         PTR     sys_waitpid
         PTR     sys_creat
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index bcf1b10e518f..397a70e651b5 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -246,7 +246,7 @@ static inline int parse_rd_cmdline(unsigned long* rd_start, unsigned long* rd_en
 #ifdef CONFIG_64BIT
         /* HACK: Guess if the sign extension was forgotten */
         if (start > 0x0000000080000000 && start < 0x00000000ffffffff)
-                start |= 0xffffffff00000000;
+                start |= 0xffffffff00000000UL;
 #endif
 
         end = start + size;
@@ -355,8 +355,6 @@ static inline void bootmem_init(void)
         }
 #endif
 
-        memory_present(0, first_usable_pfn, max_low_pfn);
-
         /* Initialize the boot-time allocator with low memory only.  */
         bootmap_size = init_bootmem(first_usable_pfn, max_low_pfn);
 
@@ -410,6 +408,7 @@ static inline void bootmem_init(void)
 
                 /* Register lowmem ranges */
                 free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(size));
+                memory_present(0, curr_pfn, curr_pfn + size - 1);
         }
 
         /* Reserve the bootmap memory.  */
@@ -419,17 +418,20 @@ static inline void bootmem_init(void)
 #ifdef CONFIG_BLK_DEV_INITRD
         initrd_below_start_ok = 1;
         if (initrd_start) {
-                unsigned long initrd_size = ((unsigned char *)initrd_end) - ((unsigned char *)initrd_start);
+                unsigned long initrd_size = ((unsigned char *)initrd_end) -
+                        ((unsigned char *)initrd_start);
+                const int width = sizeof(long) * 2;
+
                 printk("Initial ramdisk at: 0x%p (%lu bytes)\n",
                        (void *)initrd_start, initrd_size);
 
                 if (CPHYSADDR(initrd_end) > PFN_PHYS(max_low_pfn)) {
                         printk("initrd extends beyond end of memory "
                                "(0x%0*Lx > 0x%0*Lx)\ndisabling initrd\n",
-                               sizeof(long) * 2,
-                               (unsigned long long)CPHYSADDR(initrd_end),
-                               sizeof(long) * 2,
-                               (unsigned long long)PFN_PHYS(max_low_pfn));
+                               width,
+                               (unsigned long long) CPHYSADDR(initrd_end),
+                               width,
+                               (unsigned long long) PFN_PHYS(max_low_pfn));
                         initrd_start = initrd_end = 0;
                         initrd_reserve_bootmem = 0;
                 }
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index d42f358754ad..298f82fe8440 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -247,6 +247,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         current_thread_info()->cpu = 0;
         smp_tune_scheduling();
         plat_prepare_cpus(max_cpus);
+#ifndef CONFIG_HOTPLUG_CPU
+        cpu_present_map = cpu_possible_map;
+#endif
 }
 
 /* preload SMP state for boot cpu */
@@ -442,7 +445,7 @@ static int __init topology_init(void)
         int cpu;
         int ret;
 
-        for_each_cpu(cpu) {
+        for_each_present_cpu(cpu) {
                 ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL);
                 if (ret)
                         printk(KERN_WARNING "topology_init: register_cpu %d "
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 8f4fdd94dbd0..5e8a18a8e2bd 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -276,8 +276,7 @@ void sys_set_thread_area(unsigned long addr)
 
 asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
 {
-        int     tmp, len;
-        char    __user *name;
+        int     tmp;
 
         switch(cmd) {
         case MIPS_ATOMIC_SET:
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 35cb08da3820..a7564b08eb4d 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -819,15 +819,30 @@ asmlinkage void do_watch(struct pt_regs *regs)
 
 asmlinkage void do_mcheck(struct pt_regs *regs)
 {
+        const int field = 2 * sizeof(unsigned long);
+        int multi_match = regs->cp0_status & ST0_TS;
+
         show_regs(regs);
-        dump_tlb_all();
+
+        if (multi_match) {
+                printk("Index   : %0x\n", read_c0_index());
+                printk("Pagemask: %0x\n", read_c0_pagemask());
+                printk("EntryHi : %0*lx\n", field, read_c0_entryhi());
+                printk("EntryLo0: %0*lx\n", field, read_c0_entrylo0());
+                printk("EntryLo1: %0*lx\n", field, read_c0_entrylo1());
+                printk("\n");
+                dump_tlb_all();
+        }
+
+        show_code((unsigned int *) regs->cp0_epc);
+
         /*
          * Some chips may have other causes of machine check (e.g. SB1
          * graduation timer)
          */
         panic("Caught Machine Check exception - %scaused by multiple "
               "matching entries in the TLB.",
-              (regs->cp0_status & ST0_TS) ? "" : "not ");
+              (multi_match) ? "" : "not ");
 }
 
 asmlinkage void do_mt(struct pt_regs *regs)
diff --git a/arch/mips/math-emu/dp_fint.c b/arch/mips/math-emu/dp_fint.c
index a1962eb460f8..39a71de16f47 100644
--- a/arch/mips/math-emu/dp_fint.c
+++ b/arch/mips/math-emu/dp_fint.c
@@ -29,7 +29,9 @@
 
 ieee754dp ieee754dp_fint(int x)
 {
-        COMPXDP;
+        u64 xm;
+        int xe;
+        int xs;
 
         CLEARCX;
 
diff --git a/arch/mips/math-emu/dp_flong.c b/arch/mips/math-emu/dp_flong.c
index eae90a866aa1..f08f223e488a 100644
--- a/arch/mips/math-emu/dp_flong.c
+++ b/arch/mips/math-emu/dp_flong.c
@@ -29,7 +29,9 @@
 
 ieee754dp ieee754dp_flong(s64 x)
 {
-        COMPXDP;
+        u64 xm;
+        int xe;
+        int xs;
 
         CLEARCX;
 
diff --git a/arch/mips/math-emu/sp_fint.c b/arch/mips/math-emu/sp_fint.c
index 7aac13afb09a..e88e125e01c2 100644
--- a/arch/mips/math-emu/sp_fint.c
+++ b/arch/mips/math-emu/sp_fint.c
@@ -29,7 +29,9 @@
 
 ieee754sp ieee754sp_fint(int x)
 {
-        COMPXSP;
+        unsigned xm;
+        int xe;
+        int xs;
 
         CLEARCX;
 
diff --git a/arch/mips/math-emu/sp_flong.c b/arch/mips/math-emu/sp_flong.c
index 3d6c1d11c178..26d6919a269a 100644
--- a/arch/mips/math-emu/sp_flong.c
+++ b/arch/mips/math-emu/sp_flong.c
@@ -29,7 +29,9 @@
 
 ieee754sp ieee754sp_flong(s64 x)
 {
-        COMPXDP;                /* <--- need 64-bit mantissa temp */
+        u64 xm;         /* <--- need 64-bit mantissa temp */
+        int xe;
+        int xs;
 
         CLEARCX;
 
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 6b3541769602..4a43924cd4fc 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1161,6 +1161,31 @@ static void __init setup_scache(void)
         c->options |= MIPS_CPU_SUBSET_CACHES;
 }
 
+void au1x00_fixup_config_od(void)
+{
+        /*
+         * c0_config.od (bit 19) was write only (and read as 0)
+         * on the early revisions of Alchemy SOCs.  It disables the bus
+         * transaction overlapping and needs to be set to fix various errata.
+         */
+        switch (read_c0_prid()) {
+        case 0x00030100: /* Au1000 DA */
+        case 0x00030201: /* Au1000 HA */
+        case 0x00030202: /* Au1000 HB */
+        case 0x01030200: /* Au1500 AB */
+        /*
+         * Au1100 errata actually keeps silence about this bit, so we set it
+         * just in case for those revisions that require it to be set according
+         * to arch/mips/au1000/common/cputable.c
+         */
+        case 0x02030200: /* Au1100 AB */
+        case 0x02030201: /* Au1100 BA */
+        case 0x02030202: /* Au1100 BC */
+                set_c0_config(1 << 19);
+                break;
+        }
+}
+
 static inline void coherency_setup(void)
 {
         change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT);
@@ -1181,6 +1206,15 @@ static inline void coherency_setup(void)
         case CPU_R4400MC:
                 clear_c0_config(CONF_CU);
                 break;
+        /*
+         * We need to catch the ealry Alchemy SOCs with
+         * the write-only co_config.od bit and set it back to one...
+         */
+        case CPU_AU1000: /* rev. DA, HA, HB */
+        case CPU_AU1100: /* rev. AB, BA, BC ?? */
+        case CPU_AU1500: /* rev. AB */
+                au1x00_fixup_config_od();
+                break;
         }
 }
 
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index c22308b93ff0..33f6e1cdfd5b 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -227,7 +227,7 @@ void __init mem_init(void)
         for (tmp = 0; tmp < max_low_pfn; tmp++)
                 if (page_is_ram(tmp)) {
                         ram++;
-                        if (PageReserved(mem_map+tmp))
+                        if (PageReserved(pfn_to_page(tmp)))
                                 reservedpages++;
                 }
 
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index 91b799d2cd88..c31e4cff64e0 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -14,8 +14,8 @@
 
 #include "op_impl.h"
 
-extern struct op_mips_model op_model_mipsxx __attribute__((weak));
-extern struct op_mips_model op_model_rm9000 __attribute__((weak));
+extern struct op_mips_model op_model_mipsxx_ops __attribute__((weak));
+extern struct op_mips_model op_model_rm9000_ops __attribute__((weak));
 
 static struct op_mips_model *model;
 
@@ -83,11 +83,11 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
         case CPU_74K:
         case CPU_SB1:
         case CPU_SB1A:
-                lmodel = &op_model_mipsxx;
+                lmodel = &op_model_mipsxx_ops;
                 break;
 
         case CPU_RM9000:
-                lmodel = &op_model_rm9000;
+                lmodel = &op_model_rm9000_ops;
                 break;
         };
 
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index e7ce92391303..f26a00e13204 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -23,7 +23,7 @@
 
 #define M_COUNTER_OVERFLOW              (1UL    << 31)
 
-struct op_mips_model op_model_mipsxx;
+struct op_mips_model op_model_mipsxx_ops;
 
 static struct mipsxx_register_config {
         unsigned int control[4];
@@ -34,7 +34,7 @@ static struct mipsxx_register_config {
 
 static void mipsxx_reg_setup(struct op_counter_config *ctr)
 {
-        unsigned int counters = op_model_mipsxx.num_counters;
+        unsigned int counters = op_model_mipsxx_ops.num_counters;
         int i;
 
         /* Compute the performance counter control word.  */
@@ -62,7 +62,7 @@ static void mipsxx_reg_setup(struct op_counter_config *ctr)
 
 static void mipsxx_cpu_setup (void *args)
 {
-        unsigned int counters = op_model_mipsxx.num_counters;
+        unsigned int counters = op_model_mipsxx_ops.num_counters;
 
         switch (counters) {
         case 4:
@@ -83,7 +83,7 @@ static void mipsxx_cpu_setup (void *args)
 /* Start all counters on current CPU */
 static void mipsxx_cpu_start(void *args)
 {
-        unsigned int counters = op_model_mipsxx.num_counters;
+        unsigned int counters = op_model_mipsxx_ops.num_counters;
 
         switch (counters) {
         case 4:
@@ -100,7 +100,7 @@ static void mipsxx_cpu_start(void *args)
 /* Stop all counters on current CPU */
 static void mipsxx_cpu_stop(void *args)
 {
-        unsigned int counters = op_model_mipsxx.num_counters;
+        unsigned int counters = op_model_mipsxx_ops.num_counters;
 
         switch (counters) {
         case 4:
@@ -116,7 +116,7 @@ static void mipsxx_cpu_stop(void *args)
 
 static int mipsxx_perfcount_handler(struct pt_regs *regs)
 {
-        unsigned int counters = op_model_mipsxx.num_counters;
+        unsigned int counters = op_model_mipsxx_ops.num_counters;
         unsigned int control;
         unsigned int counter;
         int handled = 0;
@@ -187,37 +187,37 @@ static int __init mipsxx_init(void)
 
         reset_counters(counters);
 
-        op_model_mipsxx.num_counters = counters;
+        op_model_mipsxx_ops.num_counters = counters;
         switch (current_cpu_data.cputype) {
         case CPU_20KC:
-                op_model_mipsxx.cpu_type = "mips/20K";
+                op_model_mipsxx_ops.cpu_type = "mips/20K";
                 break;
 
         case CPU_24K:
-                op_model_mipsxx.cpu_type = "mips/24K";
+                op_model_mipsxx_ops.cpu_type = "mips/24K";
                 break;
 
         case CPU_25KF:
-                op_model_mipsxx.cpu_type = "mips/25K";
+                op_model_mipsxx_ops.cpu_type = "mips/25K";
                 break;
 
 #ifndef CONFIG_SMP
         case CPU_34K:
-                op_model_mipsxx.cpu_type = "mips/34K";
+                op_model_mipsxx_ops.cpu_type = "mips/34K";
                 break;
 
         case CPU_74K:
-                op_model_mipsxx.cpu_type = "mips/74K";
+                op_model_mipsxx_ops.cpu_type = "mips/74K";
                 break;
 #endif
 
         case CPU_5KC:
-                op_model_mipsxx.cpu_type = "mips/5K";
+                op_model_mipsxx_ops.cpu_type = "mips/5K";
                 break;
 
         case CPU_SB1:
         case CPU_SB1A:
-                op_model_mipsxx.cpu_type = "mips/sb1";
+                op_model_mipsxx_ops.cpu_type = "mips/sb1";
                 break;
 
         default:
@@ -233,12 +233,12 @@ static int __init mipsxx_init(void)
 
 static void mipsxx_exit(void)
 {
-        reset_counters(op_model_mipsxx.num_counters);
+        reset_counters(op_model_mipsxx_ops.num_counters);
 
         perf_irq = null_perf_irq;
 }
 
-struct op_mips_model op_model_mipsxx = {
+struct op_mips_model op_model_mipsxx_ops = {
         .reg_setup      = mipsxx_reg_setup,
         .cpu_setup      = mipsxx_cpu_setup,
         .init           = mipsxx_init,
diff --git a/arch/mips/oprofile/op_model_rm9000.c b/arch/mips/oprofile/op_model_rm9000.c
index 9b75e41c78ef..b7063fefa65b 100644
--- a/arch/mips/oprofile/op_model_rm9000.c
+++ b/arch/mips/oprofile/op_model_rm9000.c
@@ -126,7 +126,7 @@ static void rm9000_exit(void)
         free_irq(rm9000_perfcount_irq, NULL);
 }
 
-struct op_mips_model op_model_rm9000 = {
+struct op_mips_model op_model_rm9000_ops = {
         .reg_setup      = rm9000_reg_setup,
         .cpu_setup      = rm9000_cpu_setup,
         .init           = rm9000_init,
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index de01c9815bdd..8ba08047d164 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -31,12 +31,12 @@
 /* issue a PIO read to make sure no PIO writes are pending */
 static void inline flush_crime_bus(void)
 {
-        volatile unsigned long junk = crime->control;
+        crime->control;
 }
 
 static void inline flush_mace_bus(void)
 {
-        volatile unsigned long junk = mace->perif.ctrl.misc;
+        mace->perif.ctrl.misc;
 }
 
 #undef DEBUG_IRQ
diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c
index 4baa75b1d36f..f08173b0f065 100644
--- a/arch/powerpc/platforms/powermac/pfunc_core.c
+++ b/arch/powerpc/platforms/powermac/pfunc_core.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 
 #include <asm/semaphore.h>
 #include <asm/prom.h>
@@ -546,6 +547,7 @@ struct pmf_device {
 
 static LIST_HEAD(pmf_devices);
 static spinlock_t pmf_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_MUTEX(pmf_irq_mutex);
 
 static void pmf_release_device(struct kref *kref)
 {
@@ -864,15 +866,17 @@ int pmf_register_irq_client(struct device_node *target,
 
         spin_lock_irqsave(&pmf_lock, flags);
         func = __pmf_find_function(target, name, PMF_FLAGS_INT_GEN);
-        if (func == NULL) {
-                spin_unlock_irqrestore(&pmf_lock, flags);
+        if (func)
+                func = pmf_get_function(func);
+        spin_unlock_irqrestore(&pmf_lock, flags);
+        if (func == NULL)
                 return -ENODEV;
-        }
+        mutex_lock(&pmf_irq_mutex);
         if (list_empty(&func->irq_clients))
                 func->dev->handlers->irq_enable(func);
         list_add(&client->link, &func->irq_clients);
         client->func = func;
-        spin_unlock_irqrestore(&pmf_lock, flags);
+        mutex_unlock(&pmf_irq_mutex);
 
         return 0;
 }
@@ -881,16 +885,16 @@ EXPORT_SYMBOL_GPL(pmf_register_irq_client);
 void pmf_unregister_irq_client(struct pmf_irq_client *client)
 {
         struct pmf_function *func = client->func;
-        unsigned long flags;
 
         BUG_ON(func == NULL);
 
-        spin_lock_irqsave(&pmf_lock, flags);
+        mutex_lock(&pmf_irq_mutex);
         client->func = NULL;
         list_del(&client->link);
         if (list_empty(&func->irq_clients))
                 func->dev->handlers->irq_disable(func);
-        spin_unlock_irqrestore(&pmf_lock, flags);
+        mutex_unlock(&pmf_irq_mutex);
+        pmf_put_function(func);
 }
 EXPORT_SYMBOL_GPL(pmf_unregister_irq_client);
 
diff --git a/arch/sparc64/lib/checksum.S b/arch/sparc64/lib/checksum.S
index ba9cd3ccc2b2..1d230f693dc4 100644
--- a/arch/sparc64/lib/checksum.S
+++ b/arch/sparc64/lib/checksum.S
@@ -165,8 +165,9 @@ csum_partial_end_cruft:
         sll             %g1, 8, %g1
         or              %o5, %g1, %o4
 
-1:      add             %o2, %o4, %o2
+1:      addcc           %o2, %o4, %o2
+        addc            %g0, %o2, %o2
 
 csum_partial_finish:
         retl
-         mov            %o2, %o0
+         srl            %o2, 0, %o0
diff --git a/arch/sparc64/lib/csum_copy.S b/arch/sparc64/lib/csum_copy.S
index 71af48839064..e566c770a0f6 100644
--- a/arch/sparc64/lib/csum_copy.S
+++ b/arch/sparc64/lib/csum_copy.S
@@ -221,11 +221,12 @@ FUNC_NAME:		/* %o0=src, %o1=dst, %o2=len, %o3=sum */
         sll             %g1, 8, %g1
         or              %o5, %g1, %o4
 
-1:      add             %o3, %o4, %o3
+1:      addcc           %o3, %o4, %o3
+        addc            %g0, %o3, %o3
 
 70:
         retl
-         mov            %o3, %o0
+         srl            %o3, 0, %o0
 
 95:     mov             0, GLOBAL_SPARE
         brlez,pn        %o2, 4f
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 7a0e04e34bf9..b65ca115ef77 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -33,5 +33,9 @@ include $(srctree)/arch/i386/Makefile.cpu
 # prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
 cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
 
+# Prevent sprintf in nfsd from being converted to strcpy and resulting in
+# an unresolved reference.
+cflags-y += -ffreestanding
+
 CFLAGS += $(cflags-y)
 USER_CFLAGS += $(cflags-y)
diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h
index efa3d33c0be6..310980b32173 100644
--- a/arch/um/include/kern_util.h
+++ b/arch/um/include/kern_util.h
@@ -120,20 +120,11 @@ extern int is_syscall(unsigned long addr);
 extern void free_irq(unsigned int, void *);
 extern int cpu(void);
 
+extern void time_init_kern(void);
+
 /* Are we disallowed to sleep? Used to choose between GFP_KERNEL and GFP_ATOMIC. */
 extern int __cant_sleep(void);
 extern void segv_handler(int sig, union uml_pt_regs *regs);
 extern void sigio_handler(int sig, union uml_pt_regs *regs);
 
 #endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c
index 528cf623f8b4..86f51d04c98d 100644
--- a/arch/um/kernel/time_kern.c
+++ b/arch/um/kernel/time_kern.c
@@ -84,6 +84,16 @@ void timer_irq(union uml_pt_regs *regs)
         }
 }
 
+
+void time_init_kern(void)
+{
+        unsigned long long nsecs;
+
+        nsecs = os_nsecs();
+        set_normalized_timespec(&wall_to_monotonic, -nsecs / BILLION,
+                                -nsecs % BILLION);
+}
+
 void do_boot_timer_handler(struct sigcontext * sc)
 {
         struct pt_regs regs;
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 3a0ac38e978b..90912aaca7aa 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -59,7 +59,7 @@ static __init void do_uml_initcalls(void)
         initcall_t *call;
 
         call = &__uml_initcall_start;
-        while (call < &__uml_initcall_end){;
+        while (call < &__uml_initcall_end){
                 (*call)();
                 call++;
         }
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 6f7626775acb..280c4fb9b585 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -81,20 +81,12 @@ void uml_idle_timer(void)
         set_interval(ITIMER_REAL);
 }
 
-extern void ktime_get_ts(struct timespec *ts);
-#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
-
 void time_init(void)
 {
-        struct timespec now;
-
         if(signal(SIGVTALRM, boot_timer_handler) == SIG_ERR)
                 panic("Couldn't set SIGVTALRM handler");
         set_interval(ITIMER_VIRTUAL);
-
-        do_posix_clock_monotonic_gettime(&now);
-        wall_to_monotonic.tv_sec = -now.tv_sec;
-        wall_to_monotonic.tv_nsec = -now.tv_nsec;
+        time_init_kern();
 }
 
 unsigned long long os_nsecs(void)
diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c
index 749dd1bfe60f..710d5fb807e1 100644
--- a/arch/um/sys-i386/syscalls.c
+++ b/arch/um/sys-i386/syscalls.c
@@ -99,11 +99,12 @@ long sys_ipc (uint call, int first, int second,
 
         switch (call) {
         case SEMOP:
-                return sys_semtimedop(first, (struct sembuf *) ptr, second,
-                                      NULL);
+                return sys_semtimedop(first, (struct sembuf __user *) ptr,
+                                      second, NULL);
         case SEMTIMEDOP:
-                return sys_semtimedop(first, (struct sembuf *) ptr, second,
-                                      (const struct timespec *) fifth);
+                return sys_semtimedop(first, (struct sembuf __user *) ptr,
+                                      second,
+                                      (const struct timespec __user *) fifth);
         case SEMGET:
                 return sys_semget (first, second, third);
         case SEMCTL: {
diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c
index a4c46a8af008..9edf114faf79 100644
--- a/arch/um/sys-x86_64/signal.c
+++ b/arch/um/sys-x86_64/signal.c
@@ -21,7 +21,7 @@
 #include "skas.h"
 
 static int copy_sc_from_user_skas(struct pt_regs *regs,
-                                 struct sigcontext *from)
+                                 struct sigcontext __user *from)
 {
        int err = 0;
 
@@ -54,7 +54,8 @@ static int copy_sc_from_user_skas(struct pt_regs *regs,
        return(err);
 }
 
-int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp,
+int copy_sc_to_user_skas(struct sigcontext __user *to,
+                         struct _fpstate __user *to_fp,
                          struct pt_regs *regs, unsigned long mask,
                          unsigned long sp)
 {
@@ -106,10 +107,11 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp,
 #endif
 
 #ifdef CONFIG_MODE_TT
-int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from,
+int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext __user *from,
                          int fpsize)
 {
-        struct _fpstate *to_fp, *from_fp;
+        struct _fpstate *to_fp;
+        struct _fpstate __user *from_fp;
         unsigned long sigs;
         int err;
 
@@ -124,13 +126,14 @@ int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from,
         return(err);
 }
 
-int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp,
+int copy_sc_to_user_tt(struct sigcontext __user *to, struct _fpstate __user *fp,
                        struct sigcontext *from, int fpsize, unsigned long sp)
 {
-        struct _fpstate *to_fp, *from_fp;
+        struct _fpstate __user *to_fp;
+        struct _fpstate *from_fp;
         int err;
 
-        to_fp = (fp ? fp : (struct _fpstate *) (to + 1));
+        to_fp = (fp ? fp : (struct _fpstate __user *) (to + 1));
         from_fp = from->fpstate;
         err = copy_to_user(to, from, sizeof(*to));
         /* The SP in the sigcontext is the updated one for the signal
@@ -158,7 +161,8 @@ static int copy_sc_from_user(struct pt_regs *to, void __user *from)
        return(ret);
 }
 
-static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp,
+static int copy_sc_to_user(struct sigcontext __user *to,
+                           struct _fpstate __user *fp,
                            struct pt_regs *from, unsigned long mask,
                            unsigned long sp)
 {
@@ -169,7 +173,7 @@ static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp,
 
 struct rt_sigframe
 {
-       char *pretcode;
+       char __user *pretcode;
        struct ucontext uc;
        struct siginfo info;
 };
@@ -188,7 +192,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
 
         frame = (struct rt_sigframe __user *)
                 round_down(stack_top - sizeof(struct rt_sigframe), 16) - 8;
-        frame = (struct rt_sigframe *) ((unsigned long) frame - 128);
+        frame = (struct rt_sigframe __user *) ((unsigned long) frame - 128);
 
         if (!access_ok(VERIFY_WRITE, fp, sizeof(struct _fpstate)))
                 goto out;
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c
index 6acee5c4ada6..6fce9f45dfdc 100644
--- a/arch/um/sys-x86_64/syscalls.c
+++ b/arch/um/sys-x86_64/syscalls.c
@@ -45,7 +45,7 @@ static long arch_prctl_tt(int code, unsigned long addr)
         case ARCH_GET_GS:
                 ret = arch_prctl(code, (unsigned long) &tmp);
                 if(!ret)
-                        ret = put_user(tmp, &addr);
+                        ret = put_user(tmp, (long __user *)addr);
                 break;
         default:
                 ret = -EINVAL;