Commit 99aa0362 authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Will Deacon

arm64: secondary_start_kernel: Remove unnecessary barrier

Remove the unnecessary smp_wmb(), which was added to make sure
that the update_cpu_boot_status() completes before we mark the
CPU online. But update_cpu_boot_status() already has dsb() (required
for the failing CPUs) to ensure the correct behavior.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Reported-by: default avatarDennis Chen <dennis.chen@arm.com>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent 5bb1cc0f
......@@ -264,8 +264,6 @@ asmlinkage void secondary_start_kernel(void)
pr_info("CPU%u: Booted secondary processor [%08x]\n",
cpu, read_cpuid_id());
update_cpu_boot_status(CPU_BOOT_SUCCESS);
/* Make sure the status update is visible before we complete */
smp_wmb();
set_cpu_online(cpu, true);
complete(&cpu_running);
......
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