| Message ID | 20240826054038.11584-1-cade.richard@berkeley.edu |
|---|---|
| State | New |
| Headers | show |
| Series | [kvm-unit-tests] Changed cpumask_next to wrap instead of terminating after nr_cpus. | expand |
Patch summaries shouldn't have periods and they should be concise. On Sun, Aug 25, 2024 at 10:40:38PM GMT, Cade Richard wrote: > Changed cpumask_next() to wrap instead of terminating after nr_cpus. > > Signed-off-by: Cade Richard <cade.richard@berkeley.edu> > --- > lib/cpumask.h | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/lib/cpumask.h b/lib/cpumask.h > index be191923..5105c3bd 100644 > --- a/lib/cpumask.h > +++ b/lib/cpumask.h > @@ -109,8 +109,10 @@ static inline void cpumask_copy(cpumask_t *dst, const cpumask_t *src) > > static inline int cpumask_next(int cpu, const cpumask_t *mask) > { > - while (++cpu < nr_cpus && !cpumask_test_cpu(cpu, mask)) > - ; > + do { > + if (++cpu > nr_cpus) Should be ++cpu == nr_cpus, but... > + cpu = 0; > + } while (!cpumask_test_cpu(cpu, mask)); ...this will break everything. See for_each_cpu(). Nack drew > return cpu; > } > > -- > 2.43.0 > > > -- > kvm-riscv mailing list > kvm-riscv@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kvm-riscv
diff --git a/lib/cpumask.h b/lib/cpumask.h index be191923..5105c3bd 100644 --- a/lib/cpumask.h +++ b/lib/cpumask.h @@ -109,8 +109,10 @@ static inline void cpumask_copy(cpumask_t *dst, const cpumask_t *src) static inline int cpumask_next(int cpu, const cpumask_t *mask) { - while (++cpu < nr_cpus && !cpumask_test_cpu(cpu, mask)) - ; + do { + if (++cpu > nr_cpus) + cpu = 0; + } while (!cpumask_test_cpu(cpu, mask)); return cpu; }
Changed cpumask_next() to wrap instead of terminating after nr_cpus. Signed-off-by: Cade Richard <cade.richard@berkeley.edu> --- lib/cpumask.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)