linux-kernel - [PATCH 3/4] x86/mm: init_64: make set_pte_vaddr

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Message-Id: <20211111110241.25968-4-rppt@kernel.org>
Date:   Thu, 11 Nov 2021 13:02:40 +0200
From:   Mike Rapoport <rppt@...nel.org>
To:     x86@...nel.org
Cc:     Andy Lutomirski <luto@...nel.org>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
        Mike Rapoport <rppt@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Rick Edgecombe <rick.p.edgecombe@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] x86/mm: init_64: make set_pte_vaddr_p4d static

From: Mike Rapoport <rppt@...ux.ibm.com>

The function set_pte_vaddr_p4d() is never called outside the file
arch/x86/mm/init_64.c.

Make it static.

Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
---
 arch/x86/include/asm/pgtable_64.h | 1 -
 arch/x86/mm/init_64.c             | 3 ++-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 56d0399a0cd1..9f4b6d48ce2b 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -59,7 +59,6 @@ static inline bool mm_p4d_folded(struct mm_struct *mm)
 	return !pgtable_l5_enabled();
 }
 
-void set_pte_vaddr_p4d(p4d_t *p4d_page, unsigned long vaddr, pte_t new_pte);
 void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte);
 
 static inline void native_set_pte(pte_t *ptep, pte_t pte)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 9a24532d2b85..e46d2f18d895 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -302,7 +302,8 @@ static void __set_pte_vaddr(pud_t *pud, unsigned long vaddr, pte_t new_pte)
 	flush_tlb_one_kernel(vaddr);
 }
 
-void set_pte_vaddr_p4d(p4d_t *p4d_page, unsigned long vaddr, pte_t new_pte)
+static void set_pte_vaddr_p4d(p4d_t *p4d_page, unsigned long vaddr,
+			      pte_t new_pte)
 {
 	p4d_t *p4d = p4d_page + p4d_index(vaddr);
 	pud_t *pud = fill_pud(p4d, vaddr);
-- 
2.28.0