4 files changed, 56 insertions, 33 deletions

diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index f0c0cdb1c183..1320a0efca73 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -13,12 +13,11 @@ obj-y		:= compat.o entry-armv.o entry-common.o irq.o \
 obj-$(CONFIG_APM)               += apm.o
 obj-$(CONFIG_ISA_DMA_API)       += dma.o
 obj-$(CONFIG_ARCH_ACORN)        += ecard.o 
-obj-$(CONFIG_FOOTBRIDGE)        += isa.o
 obj-$(CONFIG_FIQ)               += fiq.o
 obj-$(CONFIG_MODULES)           += armksyms.o module.o
 obj-$(CONFIG_ARTHUR)            += arthur.o
 obj-$(CONFIG_ISA_DMA)           += dma-isa.o
-obj-$(CONFIG_PCI)               += bios32.o
+obj-$(CONFIG_PCI)               += bios32.o isa.o
 obj-$(CONFIG_SMP)               += smp.o
 obj-$(CONFIG_OABI_COMPAT)       += sys_oabi-compat.o
 
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 7ea5f01dfc7b..de4e33137901 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -634,6 +634,14 @@ ENTRY(__switch_to)
  * purpose.
  */
 
+        .macro  usr_ret, reg
+#ifdef CONFIG_ARM_THUMB
+        bx      \reg
+#else
+        mov     pc, \reg
+#endif
+        .endm
+
         .align  5
         .globl  __kuser_helper_start
 __kuser_helper_start:
@@ -675,7 +683,7 @@ __kuser_memory_barrier:				@ 0xffff0fa0
 #if __LINUX_ARM_ARCH__ >= 6 && defined(CONFIG_SMP)
         mcr     p15, 0, r0, c7, c10, 5  @ dmb
 #endif
-        mov     pc, lr
+        usr_ret lr
 
         .align  5
 
@@ -778,7 +786,7 @@ __kuser_cmpxchg:				@ 0xffff0fc0
         mov     r0, #-1
         adds    r0, r0, #0
 #endif
-        mov     pc, lr
+        usr_ret lr
 
 #else
 
@@ -792,7 +800,7 @@ __kuser_cmpxchg:				@ 0xffff0fc0
 #ifdef CONFIG_SMP
         mcr     p15, 0, r0, c7, c10, 5  @ dmb
 #endif
-        mov     pc, lr
+        usr_ret lr
 
 #endif
 
@@ -834,16 +842,11 @@ __kuser_cmpxchg:				@ 0xffff0fc0
 __kuser_get_tls:                                @ 0xffff0fe0
 
 #if !defined(CONFIG_HAS_TLS_REG) && !defined(CONFIG_TLS_REG_EMUL)
-
         ldr     r0, [pc, #(16 - 8)]             @ TLS stored at 0xffff0ff0
-        mov     pc, lr
-
 #else
-
         mrc     p15, 0, r0, c13, c0, 3          @ read TLS register
-        mov     pc, lr
-
 #endif
+        usr_ret lr
 
         .rep    5
         .word   0                       @ pad up to __kuser_helper_version
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 4fe386eea4b4..5365d4e5949e 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -118,7 +118,7 @@ ENTRY(secondary_startup)
         sub     r4, r4, r5                      @ mmu has been enabled
         ldr     r4, [r7, r4]                    @ get secondary_data.pgdir
         adr     lr, __enable_mmu                @ return address
-        add     pc, r10, #12                    @ initialise processor
+        add     pc, r10, #PROCINFO_INITFUNC     @ initialise processor
                                                 @ (return control reg)
 
         /*
diff --git a/arch/arm/kernel/isa.c b/arch/arm/kernel/isa.c
index 685c3e591a7e..54bbd9fe255c 100644
--- a/arch/arm/kernel/isa.c
+++ b/arch/arm/kernel/isa.c
@@ -3,21 +3,14 @@
  *
  *  Copyright (C) 1999 Phil Blundell
  *
- *  ISA shared memory and I/O port support
- */
-
-/*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
+ *
+ *  ISA shared memory and I/O port support, and is required to support
+ *  iopl, inb, outb and friends in userspace via glibc emulation.
  */
-
-/* 
- * Nothing about this is actually ARM specific.  One day we could move
- * it into kernel/resource.c or some place like that.  
- */
-
 #include <linux/stddef.h>
 #include <linux/types.h>
 #include <linux/fs.h>
@@ -27,21 +20,49 @@
 static unsigned int isa_membase, isa_portbase, isa_portshift;
 
 static ctl_table ctl_isa_vars[4] = {
-        {BUS_ISA_MEM_BASE, "membase", &isa_membase, 
-         sizeof(isa_membase), 0444, NULL, &proc_dointvec},
-        {BUS_ISA_PORT_BASE, "portbase", &isa_portbase, 
-         sizeof(isa_portbase), 0444, NULL, &proc_dointvec},
-        {BUS_ISA_PORT_SHIFT, "portshift", &isa_portshift, 
-         sizeof(isa_portshift), 0444, NULL, &proc_dointvec},
-        {0}
+        {
+                .ctl_name       = BUS_ISA_MEM_BASE,
+                .procname       = "membase",
+                .data           = &isa_membase, 
+                .maxlen         = sizeof(isa_membase),
+                .mode           = 0444,
+                .proc_handler   = &proc_dointvec,
+        }, {
+                .ctl_name       = BUS_ISA_PORT_BASE,
+                .procname       = "portbase",
+                .data           = &isa_portbase, 
+                .maxlen         = sizeof(isa_portbase),
+                .mode           = 0444,
+                .proc_handler   = &proc_dointvec,
+        }, {
+                .ctl_name       = BUS_ISA_PORT_SHIFT,
+                .procname       = "portshift",
+                .data           = &isa_portshift, 
+                .maxlen         = sizeof(isa_portshift),
+                .mode           = 0444,
+                .proc_handler   = &proc_dointvec,
+        }, {0}
 };
 
 static struct ctl_table_header *isa_sysctl_header;
 
-static ctl_table ctl_isa[2] = {{CTL_BUS_ISA, "isa", NULL, 0, 0555, ctl_isa_vars},
-                               {0}};
-static ctl_table ctl_bus[2] = {{CTL_BUS, "bus", NULL, 0, 0555, ctl_isa},
-                               {0}};
+static ctl_table ctl_isa[2] = {
+        {
+                .ctl_name       = CTL_BUS_ISA,
+                .procname       = "isa",
+                .mode           = 0555,
+                .child          = ctl_isa_vars,
+        }, {0}
+};
+
+static ctl_table ctl_bus[2] = {
+        {
+                .ctl_name       = CTL_BUS,
+                .procname       = "bus",
+                .mode           = 0555,
+                .child          = ctl_isa,
+        }, {0}
+};
 
 void __init
 register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)