From: Noam Camus Date: Wed, 19 Oct 2016 11:25:03 +0000 (+0300) Subject: ARC: Adjust cpuinfo for non-continuous cpu ids X-Git-Tag: v4.9.8~1038^2~12 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3da43104d3187184d7417569cb3360511229f761;p=platform%2Fkernel%2Flinux-rpi3.git ARC: Adjust cpuinfo for non-continuous cpu ids num_possible_cpus() returns how many CPUs may be present on system. However we want the highest possible CPU number. This may be differ in a sparsed possible CPUs map. Such map achived by OF for plat-eznps. For example if we have: possible cpus mask 0,3 Then: num_possible_cpus() is equal 2 while nr_cpu_ids is equal 4. Only for value 4 c_start() will provide correct cpuinfo at procfs. Signed-off-by: Noam Camus Signed-off-by: Vineet Gupta --- diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 3df7f9c..75e5409 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -507,7 +507,7 @@ static void *c_start(struct seq_file *m, loff_t *pos) * way to pass it w/o having to kmalloc/free a 2 byte string. * Encode cpu-id as 0xFFcccc, which is decoded by show routine. */ - return *pos < num_possible_cpus() ? cpu_to_ptr(*pos) : NULL; + return *pos < nr_cpu_ids ? cpu_to_ptr(*pos) : NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos)