Re: [PATCH 01/11] arch: Export cpu_logical_map to modules
flat view
From: Rob Herring <robh+dt@kernel.org>
Date: 2021-09-27 19:32:28
Also in:
linux-devicetree, linux-mips, linux-sh, lkml
On Fri, Sep 24, 2021 at 12:06 PM Florian Fainelli [off-list ref] wrote:
In order to allow drivers/irqchip/irq-bcm7038-l1.c to be built as a module and usable in GKI, export cpu_logical_map or __cpu_logical_map towards the modules.
This is the usage:
#ifdef CONFIG_SMP
cpu = intc->cpus[cpu_logical_map(smp_processor_id())];
#else
cpu = intc->cpus[0];
#endif
This is totally broken! cpu_logical_map() takes the logical cpu
number, 0-N, and returns the MPIDR which you then use as an array
index.
Rob
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