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Date: Wed, 29 Apr 2015 20:22:16 +0100
From: David Howells <dhowells@...hat.com>
To: linux-arch@...r.kernel.org
Cc: dhowells@...hat.com, linux-kernel@...r.kernel.org
Subject: [PATCH 07/13] Make some apic functions return bool when returning a
boolean value
Make some apic functions return bool when returning a boolean value as it
better informs gcc and allows the compiler to make better choices.
Signed-off-by: David Howells <dhowells@...hat.com>
---
arch/x86/include/asm/apic.h | 22 +++++++++++-----------
arch/x86/kernel/apic/apic_flat_64.c | 2 +-
arch/x86/kernel/apic/apic_noop.c | 2 +-
arch/x86/kernel/setup.c | 2 +-
4 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 976b86a325e5..49f99f236784 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -269,8 +269,8 @@ struct apic {
int (*probe)(void);
int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
- int (*apic_id_valid)(int apicid);
- int (*apic_id_registered)(void);
+ bool (*apic_id_valid)(int apicid);
+ bool (*apic_id_registered)(void);
u32 irq_delivery_mode;
u32 irq_dest_mode;
@@ -280,7 +280,7 @@ struct apic {
int disable_esr;
int dest_logical;
- unsigned long (*check_apicid_used)(physid_mask_t *map, int apicid);
+ bool (*check_apicid_used)(physid_mask_t *map, int apicid);
void (*vector_allocation_domain)(int cpu, struct cpumask *retmask,
const struct cpumask *mask);
@@ -291,7 +291,7 @@ struct apic {
void (*setup_apic_routing)(void);
int (*cpu_present_to_apicid)(int mps_cpu);
void (*apicid_to_cpu_present)(int phys_apicid, physid_mask_t *retmap);
- int (*check_phys_apicid_present)(int phys_apicid);
+ bool (*check_phys_apicid_present)(int phys_apicid);
int (*phys_pkg_id)(int cpuid_apic, int index_msb);
unsigned int (*get_apic_id)(unsigned long x);
@@ -465,7 +465,7 @@ extern void apic_send_IPI_self(int vector);
DECLARE_PER_CPU(int, x2apic_extra_bits);
extern int default_cpu_present_to_apicid(int mps_cpu);
-extern int default_check_phys_apicid_present(int phys_apicid);
+extern bool default_check_phys_apicid_present(int phys_apicid);
#endif
extern void generic_bigsmp_probe(void);
@@ -503,7 +503,7 @@ static inline unsigned int read_apic_id(void)
return apic->get_apic_id(reg);
}
-static inline int default_apic_id_valid(int apicid)
+static inline bool default_apic_id_valid(int apicid)
{
return (apicid < 255);
}
@@ -530,7 +530,7 @@ static inline int noop_x86_32_early_logical_apicid(int cpu)
*/
extern void default_init_apic_ldr(void);
-static inline int default_apic_id_registered(void)
+static inline bool default_apic_id_registered(void)
{
return physid_isset(read_apic_id(), phys_cpu_present_map);
}
@@ -588,7 +588,7 @@ default_vector_allocation_domain(int cpu, struct cpumask *retmask,
cpumask_copy(retmask, cpumask_of(cpu));
}
-static inline unsigned long default_check_apicid_used(physid_mask_t *map, int apicid)
+static inline bool default_check_apicid_used(physid_mask_t *map, int apicid)
{
return physid_isset(apicid, *map);
}
@@ -606,7 +606,7 @@ static inline int __default_cpu_present_to_apicid(int mps_cpu)
return BAD_APICID;
}
-static inline int
+static inline bool
__default_check_phys_apicid_present(int phys_apicid)
{
return physid_isset(phys_apicid, phys_cpu_present_map);
@@ -618,14 +618,14 @@ static inline int default_cpu_present_to_apicid(int mps_cpu)
return __default_cpu_present_to_apicid(mps_cpu);
}
-static inline int
+static inline bool
default_check_phys_apicid_present(int phys_apicid)
{
return __default_check_phys_apicid_present(phys_apicid);
}
#else
extern int default_cpu_present_to_apicid(int mps_cpu);
-extern int default_check_phys_apicid_present(int phys_apicid);
+extern bool default_check_phys_apicid_present(int phys_apicid);
#endif
#endif /* CONFIG_X86_LOCAL_APIC */
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index de918c410eae..4853d71be324 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -139,7 +139,7 @@ static unsigned int read_xapic_id(void)
return id;
}
-static int flat_apic_id_registered(void)
+static bool flat_apic_id_registered(void)
{
return physid_isset(read_xapic_id(), phys_cpu_present_map);
}
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index b205cdbdbe6a..acba7847612a 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -72,7 +72,7 @@ static int noop_probe(void)
return 0;
}
-static int noop_apic_id_registered(void)
+static bool noop_apic_id_registered(void)
{
/*
* if we would be really "pedantic"
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d74ac33290ae..c38fdd234716 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -136,7 +136,7 @@ int default_cpu_present_to_apicid(int mps_cpu)
return __default_cpu_present_to_apicid(mps_cpu);
}
-int default_check_phys_apicid_present(int phys_apicid)
+bool default_check_phys_apicid_present(int phys_apicid)
{
return __default_check_phys_apicid_present(phys_apicid);
}
--
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