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ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic 

Commit cb1293e2f5 ("ARM: 8375/1: disable some options on ARMv7-M")
causes the build to on ARMv7-M machines:

  CC      arch/arm/kernel/asm-offsets.s
In file included from include/linux/sem.h:5:0,
                 from include/linux/sched.h:35,
                 from arch/arm/kernel/asm-offsets.c:14:
include/linux/rcupdate.h: In function 'rcu_read_lock_sched_held':
include/linux/rcupdate.h:539:2: error: implicit declaration of function
'arch_irqs_disabled' [-Werror=implicit-function-declaration]
  return preempt_count() != 0 || irqs_disabled();

asm-generic/irqflags.h provides an implementation of arch_irqs_disabled().
Lets grab an implementation from there!

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Daniel Thompson 2015-06-10 12:25:15 +01:00 committed by Russell King
parent 90543ec829
commit 6fb18ac936
1 changed files with 11 additions and 0 deletions
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11
arch/arm/include/asm/irqflags.h
View File

@ -20,6 +20,7 @@
#if __LINUX_ARM_ARCH__ >= 6
#define arch_local_irq_save arch_local_irq_save
static inline unsigned long arch_local_irq_save(void)
{
unsigned long flags;
@ -31,6 +32,7 @@ static inline unsigned long arch_local_irq_save(void)
return flags;
}
#define arch_local_irq_enable arch_local_irq_enable
static inline void arch_local_irq_enable(void)
{
asm volatile(
@ -40,6 +42,7 @@ static inline void arch_local_irq_enable(void)
: "memory", "cc");
}
#define arch_local_irq_disable arch_local_irq_disable
static inline void arch_local_irq_disable(void)
{
asm volatile(
@ -56,6 +59,7 @@ static inline void arch_local_irq_disable(void)
/*
* Save the current interrupt enable state & disable IRQs
*/
#define arch_local_irq_save arch_local_irq_save
static inline unsigned long arch_local_irq_save(void)
{
unsigned long flags, temp;
@ -73,6 +77,7 @@ static inline unsigned long arch_local_irq_save(void)
/*
* Enable IRQs
*/
#define arch_local_irq_enable arch_local_irq_enable
static inline void arch_local_irq_enable(void)
{
unsigned long temp;
@ -88,6 +93,7 @@ static inline void arch_local_irq_enable(void)
/*
* Disable IRQs
*/
#define arch_local_irq_disable arch_local_irq_disable
static inline void arch_local_irq_disable(void)
{
unsigned long temp;
@ -135,6 +141,7 @@ static inline void arch_local_irq_disable(void)
/*
* Save the current interrupt enable state.
*/
#define arch_local_save_flags arch_local_save_flags
static inline unsigned long arch_local_save_flags(void)
{
unsigned long flags;
@ -147,6 +154,7 @@ static inline unsigned long arch_local_save_flags(void)
/*
* restore saved IRQ & FIQ state
*/
#define arch_local_irq_restore arch_local_irq_restore
static inline void arch_local_irq_restore(unsigned long flags)
{
asm volatile(
@ -156,10 +164,13 @@ static inline void arch_local_irq_restore(unsigned long flags)
: "memory", "cc");
}
#define arch_irqs_disabled_flags arch_irqs_disabled_flags
static inline int arch_irqs_disabled_flags(unsigned long flags)
{
return flags & IRQMASK_I_BIT;
}
#include <asm-generic/irqflags.h>
#endif /* ifdef __KERNEL__ */
#endif /* ifndef __ASM_ARM_IRQFLAGS_H */