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powerpc/smp: Lookup avail once per device tree node

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The of_device_is_available() check only needs to be done once per device
node, there's no need to repeat it for each thread. Move it out of the
loop.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231229120107.2281153-3-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman 2024-02-15 00:14:04 +11:00
parent 777f81f0a9
commit dca79603fb
1 changed files with 5 additions and 6 deletions
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11
arch/powerpc/kernel/setup-common.c
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@ -468,17 +468,16 @@ void __init smp_setup_cpu_maps(void)
nthreads = len / sizeof(int);
bool avail = of_device_is_available(dn);
if (!avail)
avail = !of_property_match_string(dn,
"enable-method", "spin-table");
for (j = 0; j < nthreads && cpu < nr_cpu_ids; j++) {
bool avail;
DBG(" thread %d -> cpu %d (hard id %d)\n",
j, cpu, be32_to_cpu(intserv[j]));
avail = of_device_is_available(dn);
if (!avail)
avail = !of_property_match_string(dn,
"enable-method", "spin-table");
set_cpu_present(cpu, avail);
set_cpu_possible(cpu, true);
cpu_to_phys_id[cpu] = be32_to_cpu(intserv[j]);