linux-kernel - [PATCH] powerpc: arch/powerpc/kernel/setup_64.c

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Message-ID: <20210316041148.29694-1-heying24@huawei.com>
Date:   Tue, 16 Mar 2021 00:11:48 -0400
From:   He Ying <heying24@...wei.com>
To:     <mpe@...erman.id.au>, <benh@...nel.crashing.org>,
        <paulus@...ba.org>, <npiggin@...il.com>, <dja@...ens.net>,
        <akpm@...ux-foundation.org>, <aneesh.kumar@...ux.ibm.com>,
        <rppt@...nel.org>, <ardb@...nel.org>, <clg@...d.org>,
        <christophe.leroy@...roup.eu>
CC:     <johnny.chenyi@...wei.com>, <linuxppc-dev@...ts.ozlabs.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] powerpc: arch/powerpc/kernel/setup_64.c - cleanup warnings

warning: symbol 'rfi_flush' was not declared.
warning: symbol 'entry_flush' was not declared.
warning: symbol 'uaccess_flush' was not declared.
We found warnings above in arch/powerpc/kernel/setup_64.c by using
sparse tool.

Define 'entry_flush' and 'uaccess_flush' as static because they are not
referenced outside the file. Include asm/security_features.h in which
'rfi_flush' is declared.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: He Ying <heying24@...wei.com>
---
 arch/powerpc/kernel/setup_64.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 560ed8b975e7..f92d72a7e7ce 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -68,6 +68,7 @@
 #include <asm/early_ioremap.h>
 #include <asm/pgalloc.h>
 #include <asm/asm-prototypes.h>
+#include <asm/security_features.h>
 
 #include "setup.h"
 
@@ -949,8 +950,8 @@ static bool no_rfi_flush;
 static bool no_entry_flush;
 static bool no_uaccess_flush;
 bool rfi_flush;
-bool entry_flush;
-bool uaccess_flush;
+static bool entry_flush;
+static bool uaccess_flush;
 DEFINE_STATIC_KEY_FALSE(uaccess_flush_key);
 EXPORT_SYMBOL(uaccess_flush_key);
 
-- 
2.17.1