MIPS: Mark cascade and low level interrupts IRQF_NO_THREAD

Mark interrupts with no_action handler, cascade interrupts, low level
interrupts (bus error, halt ..) with IRQF_NO_THREAD to exclude them
from forced threading.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

12 files changed, 24 insertions, 10 deletions

diff --git a/arch/mips/ar7/irq.c b/arch/mips/ar7/irq.c
index 03db3daadbd..88c4babfdb5 100644
--- a/arch/mips/ar7/irq.c
+++ b/arch/mips/ar7/irq.c
@@ -98,7 +98,8 @@ static struct irq_chip ar7_sec_irq_type = {
 
 static struct irqaction ar7_cascade_action = {
         .handler = no_action,
-        .name = "AR7 cascade interrupt"
+        .name = "AR7 cascade interrupt",
+        .flags = IRQF_NO_THREAD,
 };
 
 static void __init ar7_irq_init(int base)
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index cea6021cb8d..162e11b4ed7 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -222,6 +222,7 @@ static struct irq_chip bcm63xx_external_irq_chip = {
 static struct irqaction cpu_ip2_cascade_action = {
         .handler        = no_action,
         .name           = "cascade_ip2",
+        .flags          = IRQF_NO_THREAD,
 };
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c
index cb9bf820fe5..965c777d356 100644
--- a/arch/mips/cobalt/irq.c
+++ b/arch/mips/cobalt/irq.c
@@ -48,6 +48,7 @@ asmlinkage void plat_irq_dispatch(void)
 static struct irqaction cascade = {
         .handler        = no_action,
         .name           = "cascade",
+        .flags          = IRQF_NO_THREAD,
 };
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index fa45e924be0..f7b7ba6d5c4 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -101,20 +101,24 @@ int cpu_fpu_mask = DEC_CPU_IRQ_MASK(DEC_CPU_INR_FPU);
 static struct irqaction ioirq = {
         .handler = no_action,
         .name = "cascade",
+        .flags = IRQF_NO_THREAD,
 };
 static struct irqaction fpuirq = {
         .handler = no_action,
         .name = "fpu",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct irqaction busirq = {
         .flags = IRQF_DISABLED,
         .name = "bus error",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct irqaction haltirq = {
         .handler = dec_intr_halt,
         .name = "halt",
+        .flags = IRQF_NO_THREAD,
 };
 
 
diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c
index 3dbd7a5a6ad..7798887a128 100644
--- a/arch/mips/emma/markeins/irq.c
+++ b/arch/mips/emma/markeins/irq.c
@@ -169,7 +169,7 @@ void emma2rh_gpio_irq_init(void)
 
 static struct irqaction irq_cascade = {
            .handler = no_action,
-           .flags = 0,
+           .flags = IRQF_NO_THREAD,
            .name = "cascade",
            .dev_id = NULL,
            .next = NULL,
diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c
index de4c165515d..d608b6ef0ed 100644
--- a/arch/mips/lasat/interrupt.c
+++ b/arch/mips/lasat/interrupt.c
@@ -105,6 +105,7 @@ asmlinkage void plat_irq_dispatch(void)
 static struct irqaction cascade = {
         .handler        = no_action,
         .name           = "cascade",
+        .flags          = IRQF_NO_THREAD,
 };
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index 1d36c511a7a..d53ff91b277 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -350,12 +350,14 @@ unsigned int plat_ipi_resched_int_xlate(unsigned int cpu)
 
 static struct irqaction i8259irq = {
         .handler = no_action,
-        .name = "XT-PIC cascade"
+        .name = "XT-PIC cascade",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct irqaction corehi_irqaction = {
         .handler = no_action,
-        .name = "CoreHi"
+        .name = "CoreHi",
+        .flags = IRQF_NO_THREAD,
 };
 
 static msc_irqmap_t __initdata msc_irqmap[] = {
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq.c b/arch/mips/pmc-sierra/msp71xx/msp_irq.c
index 4531c4a514b..42a4c04e21d 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_irq.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_irq.c
@@ -109,11 +109,13 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
 static struct irqaction cic_cascade_msp = {
         .handler = no_action,
         .name    = "MSP CIC cascade"
+        .flags   = IRQF_NO_THREAD,
 };
 
 static struct irqaction per_cascade_msp = {
         .handler = no_action,
         .name    = "MSP PER cascade"
+        .flags   = IRQF_NO_THREAD,
 };
 
 void __init arch_init_irq(void)
diff --git a/arch/mips/pnx8550/common/int.c b/arch/mips/pnx8550/common/int.c
index 6b93c81779c..1ebe22bdadc 100644
--- a/arch/mips/pnx8550/common/int.c
+++ b/arch/mips/pnx8550/common/int.c
@@ -167,7 +167,7 @@ static struct irq_chip level_irq_type = {
 
 static struct irqaction gic_action = {
         .handler =      no_action,
-        .flags =        IRQF_DISABLED,
+        .flags =        IRQF_DISABLED | IRQF_NO_THREAD,
         .name =         "GIC",
 };
 
diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c
index b4d08e4d2ea..f72c336ea27 100644
--- a/arch/mips/sgi-ip22/ip22-int.c
+++ b/arch/mips/sgi-ip22/ip22-int.c
@@ -155,32 +155,32 @@ static void __irq_entry indy_buserror_irq(void)
 
 static struct irqaction local0_cascade = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "local0 cascade",
 };
 
 static struct irqaction local1_cascade = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "local1 cascade",
 };
 
 static struct irqaction buserr = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "Bus Error",
 };
 
 static struct irqaction map0_cascade = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "mapable0 cascade",
 };
 
 #ifdef USE_LIO3_IRQ
 static struct irqaction map1_cascade = {
         .handler        = no_action,
-        .flags          = IRQF_DISABLED,
+        .flags          = IRQF_DISABLED | IRQF_NO_THREAD,
         .name           = "mapable1 cascade",
 };
 #define SGI_INTERRUPTS  SGINT_END
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index a7e5a6d917b..3ab5b5d25b0 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -359,6 +359,7 @@ void sni_rm200_init_8259A(void)
 static struct irqaction sni_rm200_irq2 = {
         .handler = no_action,
         .name = "cascade",
+        .flags = IRQF_NO_THREAD,
 };
 
 static struct resource sni_rm200_pic1_resource = {
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 70a3b85f375..fad2bef432c 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -34,6 +34,7 @@ static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned;
 static struct irqaction cascade_irqaction = {
         .handler        = no_action,
         .name           = "cascade",
+        .flags          = IRQF_NO_THREAD,
 };
 
 int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))