linux-kernel - Re: [PATCH v5 0/6] x86/apic: Fix restoring boot irq mode in reboot and kexec/kdump

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Date:   Sat, 17 Feb 2018 11:46:49 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Baoquan He <bhe@...hat.com>
Cc:     ebiederm@...ssion.com, linux-kernel@...r.kernel.org,
        tglx@...utronix.de, x86@...nel.org, douly.fnst@...fujitsu.com,
        joro@...tes.org, uobergfe@...hat.com, prarit@...hat.com
Subject: Re: [PATCH v5 0/6] x86/apic: Fix restoring boot irq mode in reboot
 and kexec/kdump


* Baoquan He <bhe@...hat.com> wrote:

> Thanks for checking this!
> 
> I got warning message from kbuild test robot on previous v3 and v4. I
> guess this v5 post also has the issue since the code is the same, just
> patch format is changed.
> 
> Will report status after investigation.

Well, your patches didn't build when CONFIG_IO_APIC is disabled - I have fixed 
this by the patch below.

Thanks,

	Ingo

---
 arch/x86/include/asm/io_apic.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 06fec4426458..fd20a2334885 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -233,6 +233,7 @@ static inline void io_apic_init_mappings(void) { }
 
 static inline void setup_IO_APIC(void) { }
 static inline void enable_IO_APIC(void) { }
+static inline void restore_boot_irq_mode(void) { }
 
 #endif