linux-kernel - [tip:x86/paravirt] x86/paravirt: Remove unneeded mmu related paravirt ops bits

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Message-ID: <tip-495310e4f2dd857c4d5a62806a04cb8ba53855c1@git.kernel.org>
Date:   Mon, 3 Sep 2018 08:02:49 -0700
From:   tip-bot for Juergen Gross <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     jgross@...e.com, tglx@...utronix.de, hpa@...or.com,
        mingo@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip:x86/paravirt] x86/paravirt: Remove unneeded mmu related
 paravirt ops bits

Commit-ID:  495310e4f2dd857c4d5a62806a04cb8ba53855c1
Gitweb:     https://git.kernel.org/tip/495310e4f2dd857c4d5a62806a04cb8ba53855c1
Author:     Juergen Gross <jgross@...e.com>
AuthorDate: Tue, 28 Aug 2018 09:40:26 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Mon, 3 Sep 2018 16:50:37 +0200

x86/paravirt: Remove unneeded mmu related paravirt ops bits

There is no need to have 32-bit code for CONFIG_PGTABLE_LEVELS >= 4.
Remove it.

Signed-off-by: Juergen Gross <jgross@...e.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: xen-devel@...ts.xenproject.org
Cc: virtualization@...ts.linux-foundation.org
Cc: akataria@...are.com
Cc: rusty@...tcorp.com.au
Cc: boris.ostrovsky@...cle.com
Cc: hpa@...or.com
Link: https://lkml.kernel.org/r/20180828074026.820-16-jgross@suse.com

---
 arch/x86/include/asm/paravirt.h | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 63ab58dc5b73..969343c72a9b 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -506,25 +506,14 @@ static inline pud_t __pud(pudval_t val)
 {
 	pudval_t ret;
 
-	if (sizeof(pudval_t) > sizeof(long))
-		ret = PVOP_CALLEE2(pudval_t, mmu.make_pud, val, (u64)val >> 32);
-	else
-		ret = PVOP_CALLEE1(pudval_t, mmu.make_pud, val);
+	ret = PVOP_CALLEE1(pudval_t, mmu.make_pud, val);
 
 	return (pud_t) { ret };
 }
 
 static inline pudval_t pud_val(pud_t pud)
 {
-	pudval_t ret;
-
-	if (sizeof(pudval_t) > sizeof(long))
-		ret =  PVOP_CALLEE2(pudval_t, mmu.pud_val,
-				    pud.pud, (u64)pud.pud >> 32);
-	else
-		ret =  PVOP_CALLEE1(pudval_t, mmu.pud_val, pud.pud);
-
-	return ret;
+	return PVOP_CALLEE1(pudval_t, mmu.pud_val, pud.pud);
 }
 
 static inline void pud_clear(pud_t *pudp)
@@ -536,10 +525,7 @@ static inline void set_p4d(p4d_t *p4dp, p4d_t p4d)
 {
 	p4dval_t val = native_p4d_val(p4d);
 
-	if (sizeof(p4dval_t) > sizeof(long))
-		PVOP_VCALL3(mmu.set_p4d, p4dp, val, (u64)val >> 32);
-	else
-		PVOP_VCALL2(mmu.set_p4d, p4dp, val);
+	PVOP_VCALL2(mmu.set_p4d, p4dp, val);
 }
 
 #if CONFIG_PGTABLE_LEVELS >= 5