arm64: cpufeature: Check arm64_ftr_regs[] before the first store

sort_ftr_regs() sorts nothing. It checks that arm64_ftr_regs[] is in
sys_id order, which the binary search in get_arm64_ftr_reg() relies on,
and that no register's fields overlap. It runs at the top of
init_cpu_features(), after the boot CPU's __cpuinfo_store_cpu(). A
subsequent patch makes __cpuinfo_store_cpu() look registers up in the
table.

Rename it validate_ftr_regs() and call it from smp_prepare_boot_cpu(),
ahead of cpuinfo_store_boot_cpu().

Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Fuad Tabba <fuad.tabba@linux.dev>
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Jinjie Ruan <ruanjinjie@huawei.com>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Tested-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

0 files changed, 0 insertions, 0 deletions