Merge branch 'master' into next

Conflicts:
	fs/cifs/misc.c

Merge to resolve above, per the patch below.

Signed-off-by: James Morris <jmorris@namei.org>

diff --cc fs/cifs/misc.c
index ec36410,addd1dc..0000000
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@@ -347,13 -338,13 +338,13 @@@ header_assemble(struct smb_hdr *buffer
  		/*  BB Add support for establishing new tCon and SMB Session  */
  		/*      with userid/password pairs found on the smb session   */
  		/*	for other target tcp/ip addresses 		BB    */
 -				if (current->fsuid != treeCon->ses->linux_uid) {
 +				if (current_fsuid() != treeCon->ses->linux_uid) {
  					cFYI(1, ("Multiuser mode and UID "
  						 "did not match tcon uid"));
- 					read_lock(&GlobalSMBSeslock);
- 					list_for_each(temp_item, &GlobalSMBSessionList) {
- 						ses = list_entry(temp_item, struct cifsSesInfo, cifsSessionList);
+ 					read_lock(&cifs_tcp_ses_lock);
+ 					list_for_each(temp_item, &treeCon->ses->server->smb_ses_list) {
+ 						ses = list_entry(temp_item, struct cifsSesInfo, smb_ses_list);
 -						if (ses->linux_uid == current->fsuid) {
 +						if (ses->linux_uid == current_fsuid()) {
  							if (ses->server == treeCon->ses->server) {
  								cFYI(1, ("found matching uid substitute right smb_uid"));
  								buffer->Uid = ses->Suid;

22 files changed, 124 insertions, 59 deletions

diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c
index 7e8a0d394e6..761ee0440c9 100644
--- a/arch/m68k/kernel/ints.c
+++ b/arch/m68k/kernel/ints.c
@@ -133,7 +133,7 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
 {
 	int i;
 
-	BUG_ON(IRQ_USER + cnt >= NR_IRQS);
+	BUG_ON(IRQ_USER + cnt > NR_IRQS);
 	m68k_first_user_vec = vec;
 	for (i = 0; i < cnt; i++)
 		irq_controller[IRQ_USER + i] = &user_irq_controller;
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index ed500ef799b..08844fc24a2 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -61,22 +61,25 @@ STACK_SIZE  = 1 << STACK_SHIFT
 
 #ifdef CONFIG_TRACE_IRQFLAGS
 	.macro	TRACE_IRQS_ON
-	l	%r1,BASED(.Ltrace_irq_on)
+	basr	%r2,%r0
+	l	%r1,BASED(.Ltrace_irq_on_caller)
 	basr	%r14,%r1
 	.endm
 
 	.macro	TRACE_IRQS_OFF
-	l	%r1,BASED(.Ltrace_irq_off)
+	basr	%r2,%r0
+	l	%r1,BASED(.Ltrace_irq_off_caller)
 	basr	%r14,%r1
 	.endm
 
 	.macro	TRACE_IRQS_CHECK
+	basr	%r2,%r0
 	tm	SP_PSW(%r15),0x03	# irqs enabled?
 	jz	0f
-	l	%r1,BASED(.Ltrace_irq_on)
+	l	%r1,BASED(.Ltrace_irq_on_caller)
 	basr	%r14,%r1
 	j	1f
-0:	l	%r1,BASED(.Ltrace_irq_off)
+0:	l	%r1,BASED(.Ltrace_irq_off_caller)
 	basr	%r14,%r1
 1:
 	.endm
@@ -1113,9 +1116,12 @@ cleanup_io_leave_insn:
 .Lschedtail:	.long	schedule_tail
 .Lsysc_table:	.long	sys_call_table
 #ifdef CONFIG_TRACE_IRQFLAGS
-.Ltrace_irq_on: .long	trace_hardirqs_on
-.Ltrace_irq_off:
-		.long	trace_hardirqs_off
+.Ltrace_irq_on_caller:
+		.long	trace_hardirqs_on_caller
+.Ltrace_irq_off_caller:
+		.long	trace_hardirqs_off_caller
+#endif
+#ifdef CONFIG_LOCKDEP
 .Llockdep_sys_exit:
 		.long	lockdep_sys_exit
 #endif
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index d7ce150453f..41aca06682a 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -61,19 +61,22 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
 
 #ifdef CONFIG_TRACE_IRQFLAGS
 	.macro	TRACE_IRQS_ON
-	 brasl	%r14,trace_hardirqs_on
+	 basr	%r2,%r0
+	 brasl	%r14,trace_hardirqs_on_caller
 	.endm
 
 	.macro	TRACE_IRQS_OFF
-	 brasl	%r14,trace_hardirqs_off
+	 basr	%r2,%r0
+	 brasl	%r14,trace_hardirqs_off_caller
 	.endm
 
 	.macro TRACE_IRQS_CHECK
+	basr	%r2,%r0
 	tm	SP_PSW(%r15),0x03	# irqs enabled?
 	jz	0f
-	brasl	%r14,trace_hardirqs_on
+	brasl	%r14,trace_hardirqs_on_caller
 	j	1f
-0:	brasl	%r14,trace_hardirqs_off
+0:	brasl	%r14,trace_hardirqs_off_caller
 1:
 	.endm
 #else
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 3e2c05cb6a8..04f8c67a610 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -136,9 +136,12 @@ static void default_idle(void)
 		return;
 	}
 	trace_hardirqs_on();
+	/* Don't trace preempt off for idle. */
+	stop_critical_timings();
 	/* Wait for external, I/O or machine check interrupt. */
 	__load_psw_mask(psw_kernel_bits | PSW_MASK_WAIT |
 			PSW_MASK_IO | PSW_MASK_EXT);
+	start_critical_timings();
 }
 
 void cpu_idle(void)
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 62122bad1e3..400b040df7f 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -604,13 +604,13 @@ setup_memory(void)
 		if (memory_chunk[i].type != CHUNK_READ_WRITE)
 			continue;
 		start_chunk = PFN_DOWN(memory_chunk[i].addr);
-		end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size) - 1;
+		end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size);
 		end_chunk = min(end_chunk, end_pfn);
 		if (start_chunk >= end_chunk)
 			continue;
 		add_active_range(0, start_chunk, end_chunk);
 		pfn = max(start_chunk, start_pfn);
-		for (; pfn <= end_chunk; pfn++)
+		for (; pfn < end_chunk; pfn++)
 			page_set_storage_key(PFN_PHYS(pfn), PAGE_DEFAULT_KEY);
 	}
 
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index 5fdb799062b..4fe952e557a 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -198,7 +198,7 @@ asmlinkage long s390x_newuname(struct new_utsname __user *name)
 {
 	int ret = sys_newuname(name);
 
-	if (current->personality == PER_LINUX32 && !ret) {
+	if (personality(current->personality) == PER_LINUX32 && !ret) {
 		ret = copy_to_user(name->machine, "s390\0\0\0\0", 8);
 		if (ret) ret = -EFAULT;
 	}
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 632b13e1005..a947899dcba 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -65,18 +65,21 @@ static int machine_has_topology_irq;
 static struct timer_list topology_timer;
 static void set_topology_timer(void);
 static DECLARE_WORK(topology_work, topology_work_fn);
+/* topology_lock protects the core linked list */
+static DEFINE_SPINLOCK(topology_lock);
 
 cpumask_t cpu_core_map[NR_CPUS];
 
 cpumask_t cpu_coregroup_map(unsigned int cpu)
 {
 	struct core_info *core = &core_info;
+	unsigned long flags;
 	cpumask_t mask;
 
 	cpus_clear(mask);
 	if (!machine_has_topology)
 		return cpu_present_map;
-	mutex_lock(&smp_cpu_state_mutex);
+	spin_lock_irqsave(&topology_lock, flags);
 	while (core) {
 		if (cpu_isset(cpu, core->mask)) {
 			mask = core->mask;
@@ -84,7 +87,7 @@ cpumask_t cpu_coregroup_map(unsigned int cpu)
 		}
 		core = core->next;
 	}
-	mutex_unlock(&smp_cpu_state_mutex);
+	spin_unlock_irqrestore(&topology_lock, flags);
 	if (cpus_empty(mask))
 		mask = cpumask_of_cpu(cpu);
 	return mask;
@@ -133,7 +136,7 @@ static void tl_to_cores(struct tl_info *info)
 	union tl_entry *tle, *end;
 	struct core_info *core = &core_info;
 
-	mutex_lock(&smp_cpu_state_mutex);
+	spin_lock_irq(&topology_lock);
 	clear_cores();
 	tle = info->tle;
 	end = (union tl_entry *)((unsigned long)info + info->length);
@@ -157,7 +160,7 @@ static void tl_to_cores(struct tl_info *info)
 		}
 		tle = next_tle(tle);
 	}
-	mutex_unlock(&smp_cpu_state_mutex);
+	spin_unlock_irq(&topology_lock);
 }
 
 static void topology_update_polarization_simple(void)
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 436c2853957..65eaae34e75 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -293,6 +293,10 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
  */
 #define xlate_dev_kmem_ptr(p)	p
 
+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
+int valid_phys_addr_range(unsigned long addr, size_t size);
+int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
+
 #endif /* __KERNEL__ */
 
 #endif /* __ASM_SH_IO_H */
diff --git a/arch/sh/include/asm/pgtable.h b/arch/sh/include/asm/pgtable.h
index 52220d70a09..b517ae08b9c 100644
--- a/arch/sh/include/asm/pgtable.h
+++ b/arch/sh/include/asm/pgtable.h
@@ -148,6 +148,12 @@ extern void paging_init(void);
 extern void page_table_range_init(unsigned long start, unsigned long end,
 				  pgd_t *pgd);
 
+#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_CPU_SH4) && defined(CONFIG_MMU)
+extern void kmap_coherent_init(void);
+#else
+#define kmap_coherent_init()	do { } while (0)
+#endif
+
 #include <asm-generic/pgtable.h>
 
 #endif /* __ASM_SH_PGTABLE_H */
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
index a7412cede53..6d9e6972cfc 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7723.c
@@ -119,17 +119,17 @@ static struct plat_sci_port sci_platform_data[] = {
 	},{
 		.mapbase	= 0xa4e30000,
 		.flags		= UPF_BOOT_AUTOCONF,
-		.type		= PORT_SCI,
+		.type		= PORT_SCIFA,
 		.irqs		= { 56, 56, 56, 56 },
 	},{
 		.mapbase	= 0xa4e40000,
 		.flags		= UPF_BOOT_AUTOCONF,
-		.type		= PORT_SCI,
+		.type		= PORT_SCIFA,
 		.irqs		= { 88, 88, 88, 88 },
 	},{
 		.mapbase	= 0xa4e50000,
 		.flags		= UPF_BOOT_AUTOCONF,
-		.type		= PORT_SCI,
+		.type		= PORT_SCIFA,
 		.irqs		= { 109, 109, 109, 109 },
 	}, {
 		.flags = 0,
diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c
index 6b7d166694e..a952dcf9999 100644
--- a/arch/sh/kernel/early_printk.c
+++ b/arch/sh/kernel/early_printk.c
@@ -75,6 +75,7 @@ static struct console bios_console = {
 #endif
 
 static struct uart_port scif_port = {
+	.type		= PORT_SCIF,
 	.mapbase	= CONFIG_EARLY_SCIF_CONSOLE_PORT,
 	.membase	= (char __iomem *)CONFIG_EARLY_SCIF_CONSOLE_PORT,
 };
@@ -84,9 +85,9 @@ static void scif_sercon_putc(int c)
 	while (((sci_in(&scif_port, SCFDR) & EPK_FIFO_BITS) >= EPK_FIFO_SIZE))
 		;
 
-	sci_out(&scif_port, SCxTDR, c);
 	sci_in(&scif_port, SCxSR);
 	sci_out(&scif_port, SCxSR, 0xf3 & ~(0x20 | 0x40));
+	sci_out(&scif_port, SCxTDR, c);
 
 	while ((sci_in(&scif_port, SCxSR) & 0x40) == 0)
 		;
diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index aaaf90d06b8..3c61ddd4d43 100644
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -120,7 +120,7 @@ static void tmu_set_mode(enum clock_event_mode mode,
 {
 	switch (mode) {
 	case CLOCK_EVT_MODE_PERIODIC:
-		ctrl_outl(ctrl_inl(TMU0_TCNT), TMU0_TCOR);
+		ctrl_outl(tmu_latest_interval[TMU0], TMU0_TCOR);
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
 		ctrl_outl(0, TMU0_TCOR);
diff --git a/arch/sh/lib/copy_page.S b/arch/sh/lib/copy_page.S
index 5d12e657be3..43de7e8e4e1 100644
--- a/arch/sh/lib/copy_page.S
+++ b/arch/sh/lib/copy_page.S
@@ -80,6 +80,11 @@ ENTRY(copy_page)
 	.section __ex_table, "a";	\
 	.long 9999b, 6000f	;	\
 	.previous
+#define EX_NO_POP(...)			\
+	9999: __VA_ARGS__ ;		\
+	.section __ex_table, "a";	\
+	.long 9999b, 6005f	;	\
+	.previous
 ENTRY(__copy_user)
 	! Check if small number of bytes
 	mov	#11,r0
@@ -139,9 +144,9 @@ EX(	mov.b	r1,@r4		)
 	bt	1f
 
 2:
-EX(	mov.b	@r5+,r0		)
+EX_NO_POP(	mov.b	@r5+,r0		)
 	dt	r6
-EX(	mov.b	r0,@r4		)
+EX_NO_POP(	mov.b	r0,@r4		)
 	bf/s	2b
 	 add	#1,r4
 
@@ -150,7 +155,7 @@ EX(	mov.b	r0,@r4		)
 
 # Exception handler:
 .section .fixup, "ax"
-6000:
+6005:
 	mov.l	8000f,r1
 	mov	r3,r0
 	jmp	@r1
diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index 70e0906023c..f066e76da20 100644
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -2,7 +2,7 @@
 # Makefile for the Linux SuperH-specific parts of the memory manager.
 #
 
-obj-y			:= init.o extable_32.o consistent.o
+obj-y			:= init.o extable_32.o consistent.o mmap.o
 
 ifndef CONFIG_CACHE_OFF
 cache-$(CONFIG_CPU_SH2)		:= cache-sh2.o
diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index 0d92a8a3ac9..9481d0f54ef 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -2,7 +2,7 @@
 # Makefile for the Linux SuperH-specific parts of the memory manager.
 #
 
-obj-y			:= init.o consistent.o
+obj-y			:= init.o consistent.o mmap.o
 
 mmu-y			:= tlb-nommu.o pg-nommu.o extable_32.o
 mmu-$(CONFIG_MMU)	:= fault_64.o ioremap_64.o tlbflush_64.o tlb-sh5.o \
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 4abf00031da..6cbef8caeb5 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -137,6 +137,7 @@ void __init page_table_range_init(unsigned long start, unsigned long end,
 void __init paging_init(void)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
+	unsigned long vaddr;
 	int nid;
 
 	/* We don't need to map the kernel through the TLB, as
@@ -148,10 +149,15 @@ void __init paging_init(void)
 	 * check for a null value. */
 	set_TTB(swapper_pg_dir);
 
-	/* Populate the relevant portions of swapper_pg_dir so that
+	/*
+	 * Populate the relevant portions of swapper_pg_dir so that
 	 * we can use the fixmap entries without calling kmalloc.
-	 * pte's will be filled in by __set_fixmap(). */
-	page_table_range_init(FIXADDR_START, FIXADDR_TOP, swapper_pg_dir);
+	 * pte's will be filled in by __set_fixmap().
+	 */
+	vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
+	page_table_range_init(vaddr, 0, swapper_pg_dir);
+
+	kmap_coherent_init();
 
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
new file mode 100644
index 00000000000..8837d511710
--- /dev/null
+++ b/arch/sh/mm/mmap.c
@@ -0,0 +1,31 @@
+/*
+ * arch/sh/mm/mmap.c
+ *
+ * Copyright (C) 2008  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <asm/page.h>
+
+/*
+ * You really shouldn't be using read() or write() on /dev/mem.  This
+ * might go away in the future.
+ */
+int valid_phys_addr_range(unsigned long addr, size_t count)
+{
+	if (addr < __MEMORY_START)
+		return 0;
+	if (addr + count > __pa(high_memory))
+		return 0;
+
+	return 1;
+}
+
+int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
+{
+	return 1;
+}
diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c
index 38870e0fc18..2fe14da1f83 100644
--- a/arch/sh/mm/pg-sh4.c
+++ b/arch/sh/mm/pg-sh4.c
@@ -7,6 +7,7 @@
  * Released under the terms of the GNU GPL v2.0.
  */
 #include <linux/mm.h>
+#include <linux/init.h>
 #include <linux/mutex.h>
 #include <linux/fs.h>
 #include <linux/highmem.h>
@@ -16,6 +17,20 @@
 
 #define CACHE_ALIAS (current_cpu_data.dcache.alias_mask)
 
+#define kmap_get_fixmap_pte(vaddr)                                     \
+	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
+
+static pte_t *kmap_coherent_pte;
+
+void __init kmap_coherent_init(void)
+{
+	unsigned long vaddr;
+
+	/* cache the first coherent kmap pte */
+	vaddr = __fix_to_virt(FIX_CMAP_BEGIN);
+	kmap_coherent_pte = kmap_get_fixmap_pte(vaddr);
+}
+
 static inline void *kmap_coherent(struct page *page, unsigned long addr)
 {
 	enum fixed_addresses idx;
@@ -34,6 +49,8 @@ static inline void *kmap_coherent(struct page *page, unsigned long addr)
 
 	update_mmu_cache(NULL, vaddr, pte);
 
+	set_pte(kmap_coherent_pte - (FIX_CMAP_END - idx), pte);
+
 	return (void *)vaddr;
 }
 
diff --git a/arch/sparc/include/asm/termbits.h b/arch/sparc/include/asm/termbits.h
index d6ca3e2754f..d72dfed1f9d 100644
--- a/arch/sparc/include/asm/termbits.h
+++ b/arch/sparc/include/asm/termbits.h
@@ -29,10 +29,11 @@ struct termios {
 	tcflag_t c_cflag;		/* control mode flags */
 	tcflag_t c_lflag;		/* local mode flags */
 	cc_t c_line;			/* line discipline */
+#ifndef __KERNEL__
 	cc_t c_cc[NCCS];		/* control characters */
-#ifdef __KERNEL__
+#else
+	cc_t c_cc[NCCS+2];	/* kernel needs 2 more to hold vmin/vtime */
 #define SIZEOF_USER_TERMIOS sizeof (struct termios) - (2*sizeof (cc_t))
-	cc_t _x_cc[2];                  /* We need them to hold vmin/vtime */
 #endif
 };
 
@@ -42,8 +43,7 @@ struct termios2 {
 	tcflag_t c_cflag;		/* control mode flags */
 	tcflag_t c_lflag;		/* local mode flags */
 	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-	cc_t _x_cc[2];                  /* padding to match ktermios */
+	cc_t c_cc[NCCS+2];		/* control characters */
 	speed_t c_ispeed;		/* input speed */
 	speed_t c_ospeed;		/* output speed */
 };
@@ -54,8 +54,7 @@ struct ktermios {
 	tcflag_t c_cflag;		/* control mode flags */
 	tcflag_t c_lflag;		/* local mode flags */
 	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-	cc_t _x_cc[2];                  /* We need them to hold vmin/vtime */
+	cc_t c_cc[NCCS+2];		/* control characters */
 	speed_t c_ispeed;		/* input speed */
 	speed_t c_ospeed;		/* output speed */
 };
diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index 0837bd52e28..0a83bd73765 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -563,9 +563,9 @@ build_resources:
 	op->dev.parent = parent;
 	op->dev.bus = &of_platform_bus_type;
 	if (!parent)
-		strcpy(op->dev.bus_id, "root");
+		dev_set_name(&op->dev, "root");
 	else
-		sprintf(op->dev.bus_id, "%08x", dp->node);
+		dev_set_name(&op->dev, "%08x", dp->node);
 
 	if (of_device_register(op)) {
 		printk("%s: Could not register of device.\n",
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index e4a552d4446..0b500c5b644 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -6,7 +6,6 @@ extern void no_iommu_init(void);
 extern struct dma_mapping_ops nommu_dma_ops;
 extern int force_iommu, no_iommu;
 extern int iommu_detected;
-extern int dmar_disabled;
 
 extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len);
 
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 3ce029ffaa5..1b894b72c0f 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -188,20 +188,6 @@ static void __init ati_bugs_contd(int num, int slot, int func)
 }
 #endif
 
-#ifdef CONFIG_DMAR
-static void __init intel_g33_dmar(int num, int slot, int func)
-{
-	struct acpi_table_header *dmar_tbl;
-	acpi_status status;
-
-	status = acpi_get_table(ACPI_SIG_DMAR, 0, &dmar_tbl);
-	if (ACPI_SUCCESS(status)) {
-		printk(KERN_INFO "BIOS BUG: DMAR advertised on Intel G31/G33 chipset -- ignoring\n");
-		dmar_disabled = 1;
-	}
-}
-#endif
-
 #define QFLAG_APPLY_ONCE 	0x1
 #define QFLAG_APPLIED		0x2
 #define QFLAG_DONE		(QFLAG_APPLY_ONCE|QFLAG_APPLIED)
@@ -225,10 +211,6 @@ static struct chipset early_qrk[] __initdata = {
 	  PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs },
 	{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
 	  PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs_contd },
-#ifdef CONFIG_DMAR
-	{ PCI_VENDOR_ID_INTEL, 0x29c0,
-	  PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, intel_g33_dmar },
-#endif
 	{}
 };