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irqchip/sifive-plic: Remove incorrect requirement about number of irq contexts 

A PLIC may not be connected to all the cores. In that case, nr_contexts
may be less than num_possible_cpus. This requirement is only valid a single
PLIC is the only interrupt controller for the whole system.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: "Wesley W. Terpstra" <wesley@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Link: https://lore.kernel.org/r/20200512172636.96299-1-atish.patra@wdc.com

[Atish: Modified the commit text]
This commit is contained in:
Wesley W. Terpstra 2020-05-12 10:26:36 -07:00 committed by Marc Zyngier
parent 8a94c1ab34
commit 82f2202ddc
1 changed files with 0 additions and 2 deletions
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2
drivers/irqchip/irq-sifive-plic.c
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@ -301,8 +301,6 @@ static int __init plic_init(struct device_node *node,
nr_contexts = of_irq_count(node);
if (WARN_ON(!nr_contexts))
goto out_iounmap;
if (WARN_ON(nr_contexts < num_possible_cpus()))
goto out_iounmap;
error = -ENOMEM;
priv->irqdomain = irq_domain_add_linear(node, nr_irqs + 1,