linux-kernel - [PATCH 5.11 395/775] powerpc: Fix build error in paravirt.h

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Date:   Mon,  1 Mar 2021 17:09:23 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Michal Suchanek <msuchanek@...e.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.11 395/775] powerpc: Fix build error in paravirt.h

From: Michal Suchanek <msuchanek@...e.de>

[ Upstream commit 9899a56f1eca964cd0de21008a9fa1523a571231 ]

./arch/powerpc/include/asm/paravirt.h:83:44: error: implicit declaration
of function 'smp_processor_id'; did you mean 'raw_smp_processor_id'?

smp_processor_id is defined in linux/smp.h but it is not included.

The build error happens only when the patch is applied to 5.3 kernel but
it only works by chance in mainline.

Fixes: ca3f969dcb11 ("powerpc/paravirt: Use is_kvm_guest() in vcpu_is_preempted()")
Signed-off-by: Michal Suchanek <msuchanek@...e.de>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Link: https://lore.kernel.org/r/20210120132838.15589-1-msuchanek@suse.de
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/powerpc/include/asm/paravirt.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/include/asm/paravirt.h b/arch/powerpc/include/asm/paravirt.h
index edc08f04aef77..5d1726bb28e79 100644
--- a/arch/powerpc/include/asm/paravirt.h
+++ b/arch/powerpc/include/asm/paravirt.h
@@ -10,6 +10,7 @@
 #endif
 
 #ifdef CONFIG_PPC_SPLPAR
+#include <linux/smp.h>
 #include <asm/kvm_guest.h>
 #include <asm/cputhreads.h>
 
-- 
2.27.0