linux-kernel - [tip:x86/urgent] x86/pti: Fix section mismatch warning/error

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Date:   Sun, 2 Sep 2018 02:27:56 -0700
From:   tip-bot for Randy Dunlap <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, lkp@...el.com, rdunlap@...radead.org,
        tglx@...utronix.de, linux-kernel@...r.kernel.org, mingo@...nel.org,
        luto@...nel.org
Subject: [tip:x86/urgent] x86/pti: Fix section mismatch warning/error

Commit-ID:  ff924c5a1ec7548825cc2d07980b03be4224ffac
Gitweb:     https://git.kernel.org/tip/ff924c5a1ec7548825cc2d07980b03be4224ffac
Author:     Randy Dunlap <rdunlap@...radead.org>
AuthorDate: Sat, 1 Sep 2018 21:01:28 -0700
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Sun, 2 Sep 2018 11:24:41 +0200

x86/pti: Fix section mismatch warning/error

Fix the section mismatch warning in arch/x86/mm/pti.c:

WARNING: vmlinux.o(.text+0x6972a): Section mismatch in reference from the function pti_clone_pgtable() to the function .init.text:pti_user_pagetable_walk_pte()
The function pti_clone_pgtable() references
the function __init pti_user_pagetable_walk_pte().
This is often because pti_clone_pgtable lacks a __init
annotation or the annotation of pti_user_pagetable_walk_pte is wrong.
FATAL: modpost: Section mismatches detected.

Fixes: 85900ea51577 ("x86/pti: Map the vsyscall page if needed")
Reported-by: kbuild test robot <lkp@...el.com>
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Andy Lutomirski <luto@...nel.org>
Link: https://lkml.kernel.org/r/43a6d6a3-d69d-5eda-da09-0b1c88215a2a@infradead.org


---
 arch/x86/mm/pti.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c
index 31341ae7309f..c1fc1ae6b429 100644
--- a/arch/x86/mm/pti.c
+++ b/arch/x86/mm/pti.c
@@ -248,7 +248,7 @@ static pmd_t *pti_user_pagetable_walk_pmd(unsigned long address)
  *
  * Returns a pointer to a PTE on success, or NULL on failure.
  */
-static __init pte_t *pti_user_pagetable_walk_pte(unsigned long address)
+static pte_t *pti_user_pagetable_walk_pte(unsigned long address)
 {
 	gfp_t gfp = (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
 	pmd_t *pmd;