diff options
| author | David Brazdil <dbrazdil@google.com> | 2020-12-02 18:41:03 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-12-04 08:44:24 +0000 |
| commit | c1f45f4eb6fd8704f72d5ed64184121e9fe129a0 (patch) | |
| tree | d9e2d4c62b13524ab420c5ee1ae767cf4332c2c6 /arch/arm64/kernel/setup.c | |
| parent | 6df3e14436f6ee254b1a4952d90ee8988be59c89 (diff) | |
arm64: Make cpu_logical_map() take unsigned int
CPU index should never be negative. Change the signature of
(set_)cpu_logical_map to take an unsigned int.
This still works even if the users treat the CPU index as an int,
and will allow the hypervisor's implementation to check that the index
is valid with a single upper-bound check.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201202184122.26046-8-dbrazdil@google.com
Diffstat (limited to 'arch/arm64/kernel/setup.c')
| -rw-r--r-- | arch/arm64/kernel/setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
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]; } |