sched, cpusets: fix warning in kernel/cpuset.c
this warning: kernel/cpuset.c: In function ‘generate_sched_domains’: kernel/cpuset.c:588: warning: ‘ndoms’ may be used uninitialized in this function triggers because GCC does not recognize that ndoms stays uninitialized only if doms is NULL - but that flow is covered at the end of generate_sched_domains(). Help out GCC by initializing this variable to 0. (that's prudent anyway) Also, this function needs a splitup and code flow simplification: with 160 lines length it's clearly too long. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -585,7 +585,7 @@ static int generate_sched_domains(cpumask_t **domains,
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int i, j, k; /* indices for partition finding loops */
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int i, j, k; /* indices for partition finding loops */
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cpumask_t *doms; /* resulting partition; i.e. sched domains */
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cpumask_t *doms; /* resulting partition; i.e. sched domains */
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struct sched_domain_attr *dattr; /* attributes for custom domains */
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struct sched_domain_attr *dattr; /* attributes for custom domains */
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int ndoms; /* number of sched domains in result */
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int ndoms = 0; /* number of sched domains in result */
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int nslot; /* next empty doms[] cpumask_t slot */
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int nslot; /* next empty doms[] cpumask_t slot */
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doms = NULL;
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doms = NULL;
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