linux-kernel - [tip:x86/urgent] x86/mm/pti: Make local symbols static

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Date:   Fri, 22 Mar 2019 06:22:14 -0700
From:   tip-bot for Valdis Kletnieks <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     peterz@...radead.org, linux-kernel@...r.kernel.org,
        dave.hansen@...ux.intel.com, tglx@...utronix.de, hpa@...or.com,
        mingo@...nel.org, luto@...nel.org, valdis.kletnieks@...edu
Subject: [tip:x86/urgent] x86/mm/pti: Make local symbols static

Commit-ID:  4fe64a62e04cfb2dc1daab0d8f05d212aa014161
Gitweb:     https://git.kernel.org/tip/4fe64a62e04cfb2dc1daab0d8f05d212aa014161
Author:     Valdis Kletnieks <valdis.kletnieks@...edu>
AuthorDate: Tue, 12 Mar 2019 03:47:53 -0400
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 22 Mar 2019 13:31:28 +0100

x86/mm/pti: Make local symbols static

With 'make C=2 W=1', sparse and gcc both complain:

  CHECK   arch/x86/mm/pti.c
arch/x86/mm/pti.c:84:3: warning: symbol 'pti_mode' was not declared. Should it be static?
arch/x86/mm/pti.c:605:6: warning: symbol 'pti_set_kernel_image_nonglobal' was not declared. Should it be static?
  CC      arch/x86/mm/pti.o
arch/x86/mm/pti.c:605:6: warning: no previous prototype for 'pti_set_kernel_image_nonglobal' [-Wmissing-prototypes]
  605 | void pti_set_kernel_image_nonglobal(void)
      |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

pti_set_kernel_image_nonglobal() is only used locally. 'pti_mode' exists in
drivers/hwtracing/intel_th/pti.c as well, but it's a completely unrelated
local (static) symbol.

Make both static.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@...edu>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: https://lkml.kernel.org/r/27680.1552376873@turing-police


---
 arch/x86/mm/pti.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c
index 4fee5c3003ed..139b28a01ce4 100644
--- a/arch/x86/mm/pti.c
+++ b/arch/x86/mm/pti.c
@@ -77,7 +77,7 @@ static void __init pti_print_if_secure(const char *reason)
 		pr_info("%s\n", reason);
 }
 
-enum pti_mode {
+static enum pti_mode {
 	PTI_AUTO = 0,
 	PTI_FORCE_OFF,
 	PTI_FORCE_ON
@@ -602,7 +602,7 @@ static void pti_clone_kernel_text(void)
 	set_memory_global(start, (end_global - start) >> PAGE_SHIFT);
 }
 
-void pti_set_kernel_image_nonglobal(void)
+static void pti_set_kernel_image_nonglobal(void)
 {
 	/*
 	 * The identity map is created with PMDs, regardless of the