linux-kernel - [tip: x86/mm] x86/mm: Remove the arch-specific p4d

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Message-ID: <174341675980.14745.1298944085473516132.tip-bot2@tip-bot2>
Date: Mon, 31 Mar 2025 10:25:59 -0000
From: "tip-bot2 for Baoquan He" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Baoquan He <bhe@...hat.com>, Ingo Molnar <mingo@...nel.org>,
 x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/mm] x86/mm: Remove the arch-specific p4d_leaf() definition

The following commit has been merged into the x86/mm branch of tip:

Commit-ID:     3532c1f79ffcc57d14b8387a67b01797cc0e8be0
Gitweb:        https://git.kernel.org/tip/3532c1f79ffcc57d14b8387a67b01797cc0e8be0
Author:        Baoquan He <bhe@...hat.com>
AuthorDate:    Mon, 31 Mar 2025 16:13:26 +08:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Mon, 31 Mar 2025 12:08:17 +02:00

x86/mm: Remove the arch-specific p4d_leaf() definition

P4D huge pages are not supported yet, let's use the generic definition
in <linux/pgtable.h>.

[ mingo: Cleaned up the changelog. ]

Signed-off-by: Baoquan He <bhe@...hat.com>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Link: https://lore.kernel.org/r/20250331081327.256412-7-bhe@redhat.com
---
 arch/x86/include/asm/pgtable.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 5f4fcc0..5ddba36 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -292,13 +292,6 @@ static inline unsigned long pgd_pfn(pgd_t pgd)
 	return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
 }
 
-#define p4d_leaf p4d_leaf
-static inline bool p4d_leaf(p4d_t p4d)
-{
-	/* No 512 GiB pages yet */
-	return 0;
-}
-
 #define pte_page(pte)	pfn_to_page(pte_pfn(pte))
 
 #define pmd_leaf pmd_leaf