Commit b977f03e authored by Heiko Carstens's avatar Heiko Carstens
Browse files

s390/processor: let cpu helper functions return boolean values 



Let cpu helper functions return boolean values. This also allows to
make the code a bit simpler by getting rid of the "!!" construct.

Reviewed-by: default avatarSven Schnelle <svens@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent d9c2cf67

arch/s390/include/asm/processor.h

+5 −4
Original line number Diff line number Diff line
@@ -54,19 +54,20 @@ static __always_inline void clear_cpu_flag(int flag) 
	S390_lowcore.cpu_flags &= ~(1UL << flag);

}



static __always_inline int test_cpu_flag(int flag)

static __always_inline bool test_cpu_flag(int flag)

{

	return !!(S390_lowcore.cpu_flags & (1UL << flag));

	return S390_lowcore.cpu_flags & (1UL << flag);

}



/*

 * Test CIF flag of another CPU. The caller needs to ensure that

 * CPU hotplug can not happen, e.g. by disabling preemption.

 */

static __always_inline int test_cpu_flag_of(int flag, int cpu)

static __always_inline bool test_cpu_flag_of(int flag, int cpu)

{

	struct lowcore *lc = lowcore_ptr[cpu];

	return !!(lc->cpu_flags & (1UL << flag));



	return lc->cpu_flags & (1UL << flag);

}



#define arch_needs_cpu() test_cpu_flag(CIF_NOHZ_DELAY)