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Subject[PULL] cpumask updates for mips
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Date
The following changes since commit 5bee17f18b595937e6beafeee5197868a3f74a06:
Kyle McMartin (1):
parisc: sba_iommu: fix build bug when CONFIG_PARISC_AGP=y

are available in the git repository at:

ssh://master.kernel.org/home/ftp/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask-for-mips.git master

Rusty Russell (6):
cpumask: remove the now-obsoleted pcibus_to_cpumask(): mips
cpumask: arch_send_call_function_ipi_mask: mips
cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: mips
cpumask: Use accessors code.: mips
cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL.: mips
cpumask: use mm_cpumask() wrapper: mips

arch/mips/alchemy/common/time.c | 2 +-
arch/mips/include/asm/mach-ip27/topology.h | 1 -
arch/mips/include/asm/mmu_context.h | 10 +++++-----
arch/mips/include/asm/smp-ops.h | 2 +-
arch/mips/include/asm/smp.h | 3 ++-
arch/mips/kernel/irq-gic.c | 2 +-
arch/mips/kernel/proc.c | 2 +-
arch/mips/kernel/smp-cmp.c | 11 +++++++----
arch/mips/kernel/smp-mt.c | 4 ++--
arch/mips/kernel/smp-up.c | 3 ++-
arch/mips/kernel/smp.c | 4 ++--
arch/mips/kernel/smtc.c | 6 +++---
arch/mips/mipssim/sim_smtc.c | 5 +++--
arch/mips/mm/c-octeon.c | 2 +-
arch/mips/mti-malta/malta-smtc.c | 4 ++--
arch/mips/pmc-sierra/yosemite/smp.c | 4 ++--
arch/mips/sgi-ip27/ip27-smp.c | 4 ++--
arch/mips/sibyte/bcm1480/irq.c | 2 +-
arch/mips/sibyte/bcm1480/smp.c | 7 ++++---
arch/mips/sibyte/sb1250/smp.c | 7 ++++---
20 files changed, 46 insertions(+), 39 deletions(-)
commit 0656e33655680d82e06a5fb2941d5cce8b959b17
Author: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon Mar 16 14:17:24 2009 +1030

cpumask: use mm_cpumask() wrapper: mips

Makes code futureproof against the impending change to mm->cpu_vm_mask.

It's also a chance to use the new cpumask_ ops which take a pointer
(the older ones are deprecated, but there's no hurry for arch code).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index d7f3eb0..7f8204c 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -177,8 +177,8 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
* Mark current->active_mm as not "active" anymore.
* We don't want to mislead possible IPI tlb flush routines.
*/
- 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));

local_irq_restore(flags);
}
@@ -234,8 +234,8 @@ activate_mm(struct mm_struct *prev, struct mm_struct *next)
TLBMISS_HANDLER_SETUP_PGD(next->pgd);

/* mark mmu ownership change */
- 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));

local_irq_restore(flags);
}
@@ -257,7 +257,7 @@ drop_mmu_context(struct mm_struct *mm, unsigned cpu)

local_irq_save(flags);

- if (cpu_isset(cpu, mm->cpu_vm_mask)) {
+ if (cpumask_test_cpu(cpu, mm_cpumask(mm))) {
get_new_mmu_context(mm, cpu);
#ifdef CONFIG_MIPS_MT_SMTC
/* See comments for similar code above */
diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c
index 44d01a0..9e06a31 100644
--- a/arch/mips/mm/c-octeon.c
+++ b/arch/mips/mm/c-octeon.c
@@ -78,7 +78,7 @@ static void octeon_flush_icache_all_cores(struct vm_area_struct *vma)
* cores it has been used on
*/
if (vma)
- mask = vma->vm_mm->cpu_vm_mask;
+ mask = *mm_cpumask(vma->vm_mm);
else
mask = cpu_online_map;
cpu_clear(cpu, mask);
commit 3c2f65bfe709f6cc9290a181c6fd55560c2105a3
Author: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon Mar 16 14:17:23 2009 +1030

cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL.: mips

Impact: cleanup

(Thanks to Al Viro for reminding me of this, via Ingo)

CPU_MASK_ALL is the (deprecated) "all bits set" cpumask, defined as so:

#define CPU_MASK_ALL (cpumask_t) { { ... } }
Taking the address of such a temporary is questionable at best,
unfortunately 321a8e9d (cpumask: add CPU_MASK_ALL_PTR macro) added
CPU_MASK_ALL_PTR:

#define CPU_MASK_ALL_PTR (&CPU_MASK_ALL)

Which formalizes this practice. One day gcc could bite us over this
usage (though we seem to have gotten away with it so far).

So replace everywhere which used &CPU_MASK_ALL or CPU_MASK_ALL_PTR
with the modern "cpu_all_mask" (a real struct cpumask *), and remove
CPU_MASK_ALL_PTR altogether.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Mike Travis <travis@sgi.com>

diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index f58d4ff..e653513 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -89,7 +89,7 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = {
.irq = AU1000_RTC_MATCH2_INT,
.set_next_event = au1x_rtcmatch2_set_next_event,
.set_mode = au1x_rtcmatch2_set_mode,
- .cpumask = CPU_MASK_ALL_PTR,
+ .cpumask = cpu_all_mask,
};

static struct irqaction au1x_rtcmatch2_irqaction = {
commit 982de1f1ed0908953a115bb1f45abd7c10e0e218
Author: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon Mar 16 14:17:23 2009 +1030

cpumask: Use accessors code.: mips

Impact: use new API

Use the accessors rather than frobbing bits directly. Most of this is
in arch code I haven't even compiled, but is straightforward.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>

diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
index 725e455..efa2016 100644
--- a/arch/mips/kernel/smp-cmp.c
+++ b/arch/mips/kernel/smp-cmp.c
@@ -53,7 +53,10 @@ static int __init allowcpus(char *str)
cpus_clear(cpu_allow_map);
if (cpulist_parse(str, &cpu_allow_map) == 0) {
cpu_set(0, cpu_allow_map);
- cpus_and(cpu_possible_map, cpu_possible_map, cpu_allow_map);
+ unsigned int i;
+ for (i = 1; i < nr_cpu_ids; i++)
+ if (!cpumask_test_cpu(i, cpu_allow_map))
+ set_cpu_possible(i, false);
len = cpulist_scnprintf(buf, sizeof(buf)-1, &cpu_possible_map);
buf[len] = '\0';
pr_debug("Allowable CPUs: %s\n", buf);
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 664ba8c..5b97ca3 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -183,7 +183,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
mp_ops->prepare_cpus(max_cpus);
set_cpu_sibling_map(0);
#ifndef CONFIG_HOTPLUG_CPU
- cpu_present_map = cpu_possible_map;
+ init_cpu_present(&cpu_possible_map);
#endif
}

commit 9e1d1737d800c4d90a64804b5eb2798cbcc5e114
Author: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon Mar 16 14:17:22 2009 +1030

cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: mips

Impact: cleanup, futureproof

In fact, all cpumask ops will only be valid (in general) for bit
numbers < nr_cpu_ids. So use that instead of NR_CPUS in various
places.

This is always safe: no cpu number can be >= nr_cpu_ids, and
nr_cpu_ids is initialized to NR_CPUS at boot.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/mips/kernel/irq-gic.c b/arch/mips/kernel/irq-gic.c
index 494a49a..232f8fb 100644
--- a/arch/mips/kernel/irq-gic.c
+++ b/arch/mips/kernel/irq-gic.c
@@ -182,7 +182,7 @@ static void gic_set_affinity(unsigned int irq, const struct cpumask *cpumask)
_intrmap[irq].cpunum = first_cpu(tmp);

/* Update the pcpu_masks */
- for (i = 0; i < NR_CPUS; i++)
+ for (i = 0; i < nr_cpu_ids; i++)
clear_bit(irq, pcpu_masks[i].pcpu_mask);
set_bit(irq, pcpu_masks[first_cpu(tmp)].pcpu_mask);

diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 26760ca..f362c95 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -86,7 +86,7 @@ static void *c_start(struct seq_file *m, loff_t *pos)
{
unsigned long i = *pos;

- return i < NR_CPUS ? (void *) (i + 1) : NULL;
+ return i < nr_cpu_ids ? (void *) (i + 1) : NULL;
}

static void *c_next(struct seq_file *m, void *v, loff_t *pos)
diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
index 44b25cf..725e455 100644
--- a/arch/mips/kernel/smp-cmp.c
+++ b/arch/mips/kernel/smp-cmp.c
@@ -224,7 +224,7 @@ void __init cmp_smp_setup(void)
cpu_set(0, mt_fpu_cpumask);
#endif /* CONFIG_MIPS_MT_FPAFF */

- for (i = 1; i < NR_CPUS; i++) {
+ for (i = 1; i < nr_cpu_ids; i++) {
if (amon_cpu_avail(i)) {
cpu_set(i, cpu_possible_map);
__cpu_number_map[i] = ++ncpu;
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index b6cca01..047cefd 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -422,8 +422,8 @@ void smtc_prepare_cpus(int cpus)
if (vpelimit > 0 && nvpe > vpelimit)
nvpe = vpelimit;
ntc = ((val & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT) + 1;
- if (ntc > NR_CPUS)
- ntc = NR_CPUS;
+ if (ntc > nr_cpu_ids)
+ ntc = nr_cpu_ids;
if (tclimit > 0 && ntc > tclimit)
ntc = tclimit;
slop = ntc % nvpe;
@@ -701,7 +701,7 @@ void smtc_forward_irq(unsigned int irq)
*/

/* If no one is eligible, service locally */
- if (target >= NR_CPUS) {
+ if (target >= nr_cpu_ids) {
do_IRQ_no_affinity(irq);
return;
}
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c
index 12b465d..e89ae4c 100644
--- a/arch/mips/sibyte/bcm1480/irq.c
+++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -195,7 +195,7 @@ static void ack_bcm1480_irq(unsigned int irq)
if (pending) {
#ifdef CONFIG_SMP
int i;
- for (i=0; i<NR_CPUS; i++) {
+ for (i = 0; i < nr_cpu_ids; i++) {
/*
* Clear for all CPUs so an affinity switch
* doesn't find an old status
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index 48ef140..5268db7 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -151,7 +151,7 @@ static void __init bcm1480_smp_setup(void)
__cpu_number_map[0] = 0;
__cpu_logical_map[0] = 0;

- for (i = 1, num = 0; i < NR_CPUS; i++) {
+ for (i = 1, num = 0; i < nr_cpu_ids; i++) {
if (cfe_cpu_stop(i) == 0) {
cpu_set(i, cpu_possible_map);
__cpu_number_map[i] = ++num;
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index 7fda6d2..51686a8 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -139,7 +139,7 @@ static void __init sb1250_smp_setup(void)
__cpu_number_map[0] = 0;
__cpu_logical_map[0] = 0;

- for (i = 1, num = 0; i < NR_CPUS; i++) {
+ for (i = 1, num = 0; i < nr_cpu_ids; i++) {
if (cfe_cpu_stop(i) == 0) {
cpu_set(i, cpu_possible_map);
__cpu_number_map[i] = ++num;
commit 3002c1d977215675b9211d9980914e1f1179c58a
Author: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon Mar 16 14:17:21 2009 +1030

cpumask: arch_send_call_function_ipi_mask: mips

We're weaning the core code off handing cpumask's around on-stack.
This introduces arch_send_call_function_ipi_mask(), and by defining
it, the old arch_send_call_function_ipi is defined by the core code.

We also take the chance to wean the implementations off the
obsolescent for_each_cpu_mask(): making send_ipi_mask take the pointer
seemed the most natural way to ensure all implementations used
for_each_cpu.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h
index 43c207e..5f28881 100644
--- a/arch/mips/include/asm/smp-ops.h
+++ b/arch/mips/include/asm/smp-ops.h
@@ -17,7 +17,7 @@

struct plat_smp_ops {
void (*send_ipi_single)(int cpu, unsigned int action);
- void (*send_ipi_mask)(cpumask_t mask, unsigned int action);
+ void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
void (*init_secondary)(void);
void (*smp_finish)(void);
void (*cpus_done)(void);
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 40e5ef1..0483444 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -58,6 +58,7 @@ static inline void smp_send_reschedule(int cpu)
extern asmlinkage void smp_call_function_interrupt(void);

extern void arch_send_call_function_single_ipi(int cpu);
-extern void arch_send_call_function_ipi(cpumask_t mask);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask

#endif /* __ASM_SMP_H */
diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
index f27beca..44b25cf 100644
--- a/arch/mips/kernel/smp-cmp.c
+++ b/arch/mips/kernel/smp-cmp.c
@@ -135,11 +135,11 @@ void cmp_send_ipi_single(int cpu, unsigned int action)
local_irq_restore(flags);
}

-static void cmp_send_ipi_mask(cpumask_t mask, unsigned int action)
+static void cmp_send_ipi_mask(const struct cpumask *mask, unsigned int action)
{
unsigned int i;

- for_each_cpu_mask(i, mask)
+ for_each_cpu(i, mask)
cmp_send_ipi_single(i, action);
}

diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 6f7ee5a..9538ca4 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -141,11 +141,11 @@ static void vsmp_send_ipi_single(int cpu, unsigned int action)
local_irq_restore(flags);
}

-static void vsmp_send_ipi_mask(cpumask_t mask, unsigned int action)
+static void vsmp_send_ipi_mask(const struct cpumask *mask, unsigned int action)
{
unsigned int i;

- for_each_cpu_mask(i, mask)
+ for_each_cpu(i, mask)
vsmp_send_ipi_single(i, action);
}

diff --git a/arch/mips/kernel/smp-up.c b/arch/mips/kernel/smp-up.c
index ead6c30..dace5d7 100644
--- a/arch/mips/kernel/smp-up.c
+++ b/arch/mips/kernel/smp-up.c
@@ -18,7 +18,8 @@ void up_send_ipi_single(int cpu, unsigned int action)
panic(KERN_ERR "%s called", __func__);
}

-static inline void up_send_ipi_mask(cpumask_t mask, unsigned int action)
+static inline void up_send_ipi_mask(const struct cpumask *mask,
+ unsigned int action)
{
panic(KERN_ERR "%s called", __func__);
}
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 3da9470..664ba8c 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -128,7 +128,7 @@ asmlinkage __cpuinit void start_secondary(void)
cpu_idle();
}

-void arch_send_call_function_ipi(cpumask_t mask)
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
{
mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
}
diff --git a/arch/mips/mipssim/sim_smtc.c b/arch/mips/mipssim/sim_smtc.c
index d6e4f65..5da30b6 100644
--- a/arch/mips/mipssim/sim_smtc.c
+++ b/arch/mips/mipssim/sim_smtc.c
@@ -43,11 +43,12 @@ static void ssmtc_send_ipi_single(int cpu, unsigned int action)
/* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */
}

-static inline void ssmtc_send_ipi_mask(cpumask_t mask, unsigned int action)
+static inline void ssmtc_send_ipi_mask(const struct cpumask *mask,
+ unsigned int action)
{
unsigned int i;

- for_each_cpu_mask(i, mask)
+ for_each_cpu(i, mask)
ssmtc_send_ipi_single(i, action);
}

diff --git a/arch/mips/mti-malta/malta-smtc.c b/arch/mips/mti-malta/malta-smtc.c
index aabd727..9f3ab5f 100644
--- a/arch/mips/mti-malta/malta-smtc.c
+++ b/arch/mips/mti-malta/malta-smtc.c
@@ -21,11 +21,11 @@ static void msmtc_send_ipi_single(int cpu, unsigned int action)
smtc_send_ipi(cpu, LINUX_SMP_IPI, action);
}

-static void msmtc_send_ipi_mask(cpumask_t mask, unsigned int action)
+static void msmtc_send_ipi_mask(const struct cpumask *mask, unsigned int action)
{
unsigned int i;

- for_each_cpu_mask(i, mask)
+ for_each_cpu(i, mask)
msmtc_send_ipi_single(i, action);
}

diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index f78c29b..bb4779e 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -96,11 +96,11 @@ static void yos_send_ipi_single(int cpu, unsigned int action)
}
}

-static void yos_send_ipi_mask(cpumask_t mask, unsigned int action)
+static void yos_send_ipi_mask(const struct cpumask *mask, unsigned int action)
{
unsigned int i;

- for_each_cpu_mask(i, mask)
+ for_each_cpu(i, mask)
yos_send_ipi_single(i, action);
}

diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index 5b47d6b..4ffb255 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -165,11 +165,11 @@ static void ip27_send_ipi_single(int destid, unsigned int action)
REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq);
}

-static void ip27_send_ipi_mask(cpumask_t mask, unsigned int action)
+static void ip27_send_ipi(const struct cpumask *mask, unsigned int action)
{
unsigned int i;

- for_each_cpu_mask(i, mask)
+ for_each_cpu(i, mask)
ip27_send_ipi_single(i, action);
}

diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index dddfda8..48ef140 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -82,11 +82,12 @@ static void bcm1480_send_ipi_single(int cpu, unsigned int action)
__raw_writeq((((u64)action)<< 48), mailbox_0_set_regs[cpu]);
}

-static void bcm1480_send_ipi_mask(cpumask_t mask, unsigned int action)
+static void bcm1480_send_ipi_mask(const struct cpumask *mask,
+ unsigned int action)
{
unsigned int i;

- for_each_cpu_mask(i, mask)
+ for_each_cpu(i, mask)
bcm1480_send_ipi_single(i, action);
}

diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index 5950a28..7fda6d2 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -70,11 +70,12 @@ static void sb1250_send_ipi_single(int cpu, unsigned int action)
__raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]);
}

-static inline void sb1250_send_ipi_mask(cpumask_t mask, unsigned int action)
+static inline void sb1250_send_ipi_mask(const struct cpumask *mask,
+ unsigned int action)
{
unsigned int i;

- for_each_cpu_mask(i, mask)
+ for_each_cpu(i, mask)
sb1250_send_ipi_single(i, action);
}

commit faad087e648decd8a7e4ae7bc04cc802a0100a81
Author: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon Mar 16 14:17:19 2009 +1030

cpumask: remove the now-obsoleted pcibus_to_cpumask(): mips

Impact: reduce stack usage for large NR_CPUS

cpumask_of_pcibus() is the new version.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/arch/mips/include/asm/mach-ip27/topology.h b/arch/mips/include/asm/mach-ip27/topology.h
index 55d4815..b9b933b 100644
--- a/arch/mips/include/asm/mach-ip27/topology.h
+++ b/arch/mips/include/asm/mach-ip27/topology.h
@@ -30,7 +30,6 @@ extern struct cpuinfo_ip27 sn_cpu_info[NR_CPUS];
struct pci_bus;
extern int pcibus_to_node(struct pci_bus *);

-#define pcibus_to_cpumask(bus) (cpu_online_map)
#define cpumask_of_pcibus(bus) (cpu_online_mask)

extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];


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