linux-kernel - [PATCH 4.9 39/51] powerpc/64s: Include cpu header

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Message-Id: <20190515090627.734793893@linuxfoundation.org>
Date:   Wed, 15 May 2019 12:56:14 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Breno Leitao <leitao@...ian.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Joel Stanley <joel@....id.au>,
        Nathan Chancellor <natechancellor@...il.com>,
        Major Hayden <major@...hat.com>
Subject: [PATCH 4.9 39/51] powerpc/64s: Include cpu header

From: Breno Leitao <leitao@...ian.org>

commit 42e2acde1237878462b028f5a27d9cc5bea7502c upstream.

Current powerpc security.c file is defining functions, as
cpu_show_meltdown(), cpu_show_spectre_v{1,2} and others, that are being
declared at linux/cpu.h header without including the header file that
contains these declarations.

This is being reported by sparse, which thinks that these functions are
static, due to the lack of declaration:

	arch/powerpc/kernel/security.c:105:9: warning: symbol 'cpu_show_meltdown' was not declared. Should it be static?
	arch/powerpc/kernel/security.c:139:9: warning: symbol 'cpu_show_spectre_v1' was not declared. Should it be static?
	arch/powerpc/kernel/security.c:161:9: warning: symbol 'cpu_show_spectre_v2' was not declared. Should it be static?
	arch/powerpc/kernel/security.c:209:6: warning: symbol 'stf_barrier' was not declared. Should it be static?
	arch/powerpc/kernel/security.c:289:9: warning: symbol 'cpu_show_spec_store_bypass' was not declared. Should it be static?

This patch simply includes the proper header (linux/cpu.h) to match
function definition and declaration.

Signed-off-by: Breno Leitao <leitao@...ian.org>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Cc: Joel Stanley <joel@....id.au>
Cc: Nathan Chancellor <natechancellor@...il.com>
Cc: Major Hayden <major@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/powerpc/kernel/security.c |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c
@@ -4,6 +4,7 @@
 //
 // Copyright 2018, Michael Ellerman, IBM Corporation.
 
+#include <linux/cpu.h>
 #include <linux/kernel.h>
 #include <linux/debugfs.h>
 #include <linux/device.h>