ARC: Enable machine_desc->init_per_cpu for !CONFIG_SMP

[ Upstream commit 2f24ef7413a4d91657ef04e77c27ce0b313e6c95 ]

machine_desc->init_per_cpu() hook is supposed to be per cpu
initialization and would seem to apply  equally to UP and/or SMP.
Infact the comment in header file seems to suggest it works for
UP too, which was not the case and this patch.

This enables !CONFIG_SMP build for platforms such as hsdk.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: trimmeed changelog]
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arc/include/asm/mach_desc.h b/arch/arc/include/asm/mach_desc.h
index c28e6c347b4900217ad48053c69679bb3da8b607..871f3cb16af9f2ec58c76192ffc098d914588b9d 100644 (file)
--- a/arch/arc/include/asm/mach_desc.h
+++ b/arch/arc/include/asm/mach_desc.h
@@ -34,9 +34,7 @@ struct machine_desc {
        const char              *name;
        const char              **dt_compat;
        void                    (*init_early)(void);
-#ifdef CONFIG_SMP
        void                    (*init_per_cpu)(unsigned int);
-#endif
        void                    (*init_machine)(void);
        void                    (*init_late)(void);
 

diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c
index 538b36afe89e7c9871e2c37d2322d839a9b27a26..62b185057c040157132386aaee6ff56eaaebcf25 100644 (file)
--- a/arch/arc/kernel/irq.c
+++ b/arch/arc/kernel/irq.c
@@ -31,10 +31,10 @@ void __init init_IRQ(void)
        /* a SMP H/w block could do IPI IRQ request here */
        if (plat_smp_ops.init_per_cpu)
                plat_smp_ops.init_per_cpu(smp_processor_id());
+#endif
 
        if (machine_desc->init_per_cpu)
                machine_desc->init_per_cpu(smp_processor_id());
-#endif
 }
 
 /*