[PATCH v2 03/24] arm64: Make cpu_logical_map() take unsigned int

David Brazdil
2020-11-16T20:44:09Z

CPU index should never be negative. Change the signature of
(set_)cpu_logical_map to take an unsigned int.

Signed-off-by: David Brazdil <dbrazdil@google.com>
---
arch/arm64/include/asm/smp.h | 4 ++--
arch/arm64/kernel/setup.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
index 2e7f529ec5a6..bcb01ca15325 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -46,9 +46,9 @@ DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
* Logical CPU mapping.
*/
extern u64 __cpu_logical_map[NR_CPUS];
-extern u64 cpu_logical_map(int cpu);
+extern u64 cpu_logical_map(unsigned int cpu);

-static inline void set_cpu_logical_map(int cpu, u64 hwid)
+static inline void set_cpu_logical_map(unsigned int cpu, u64 hwid)
{
__cpu_logical_map[cpu] = hwid;
}
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 133257ffd859..2f2973bc67c7 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -276,7 +276,7 @@ arch_initcall(reserve_memblock_reserved_regions);

u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };

-u64 cpu_logical_map(int cpu)
+u64 cpu_logical_map(unsigned int cpu)
{
return __cpu_logical_map[cpu];
}
--
2.29.2.299.gdc1121823c-goog