linux-kernel - [PATCH] x86/boot/compressed/64: Drop the now-unused finalize_identity

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Message-Id: <20201113150810.1233016-1-vkuznets@redhat.com>
Date:   Fri, 13 Nov 2020 16:08:10 +0100
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     x86@...nel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, Joerg Roedel <jroedel@...e.de>,
        Arvind Sankar <nivedita@...m.mit.edu>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] x86/boot/compressed/64: Drop the now-unused finalize_identity_maps()

Since commit 8570978ea030 ("x86/boot/compressed/64: Don't pre-map memory in
KASLR code") finalize_identity_maps() has no users, drop it.

Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
---
 arch/x86/boot/compressed/ident_map_64.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c
index a5e5db6ada3c..6bf20223dc0f 100644
--- a/arch/x86/boot/compressed/ident_map_64.c
+++ b/arch/x86/boot/compressed/ident_map_64.c
@@ -167,16 +167,6 @@ void initialize_identity_maps(void *rmode)
 	write_cr3(top_level_pgt);
 }
 
-/*
- * This switches the page tables to the new level4 that has been built
- * via calls to add_identity_map() above. If booted via startup_32(),
- * this is effectively a no-op.
- */
-void finalize_identity_maps(void)
-{
-	write_cr3(top_level_pgt);
-}
-
 static pte_t *split_large_pmd(struct x86_mapping_info *info,
 			      pmd_t *pmdp, unsigned long __address)
 {
-- 
2.26.2