Messages in this thread Patch in this message | | | From | Yury Norov <> | Subject | [PATCH v2 1/5] smp: don't declare nr_cpu_ids if NR_CPUS == 1 | Date | Mon, 5 Sep 2022 16:08:16 -0700 |
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SMP and NR_CPUS are independent options, hence nr_cpu_ids may be declared even if NR_CPUS == 1, which is useless.
Signed-off-by: Yury Norov <yury.norov@gmail.com> --- kernel/smp.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/kernel/smp.c b/kernel/smp.c index 650810a6f29b..e971c9626a1b 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -1088,9 +1088,11 @@ static int __init maxcpus(char *str) early_param("maxcpus", maxcpus); +#if (NR_CPUS > 1) /* Setup number of possible processor ids */ unsigned int nr_cpu_ids __read_mostly = NR_CPUS; EXPORT_SYMBOL(nr_cpu_ids); +#endif /* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */ void __init setup_nr_cpu_ids(void) -- 2.34.1
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