linux-kernel - [PATCH] x86/lib: Eliminate compilation warnings for misc

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Message-Id: <20211116080600.31082-1-tianjia.zhang@linux.alibaba.com>
Date:   Tue, 16 Nov 2021 16:06:00 +0800
From:   Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-kernel@...r.kernel.org
Cc:     Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
Subject: [PATCH] x86/lib: Eliminate compilation warnings for misc

Eliminate the following clang compilation warnings by including
necessary header files:

  arch/x86/lib/misc.c:7:5: warning: no previous prototype for function 'num_digits' [-Wmissing-prototypes]
  int num_digits(int val)
      ^
  arch/x86/lib/misc.c:7:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
  int num_digits(int val)
  ^
  static

Signed-off-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
---
 arch/x86/lib/misc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/lib/misc.c b/arch/x86/lib/misc.c
index a018ec4fba53..da8228f65455 100644
--- a/arch/x86/lib/misc.c
+++ b/arch/x86/lib/misc.c
@@ -4,6 +4,8 @@
  *
  * (Typed on and submitted from hpa's mobile phone.)
  */
+#include <asm/misc.h>
+
 int num_digits(int val)
 {
 	int m = 10;
-- 
2.32.0