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From: "tip-bot2 for Baoquan He" <tip-bot2@linutronix.de>
Sender: tip-bot2@linutronix.de
Reply-to: linux-kernel@vger.kernel.org
To: linux-tip-commits@vger.kernel.org
Subject:
[tip: x86/mm] x86/mm: Simplify the pgd_leaf() and p4d_leaf() checks a bit
Cc: Baoquan He <bhe@redhat.com>, Ingo Molnar <mingo@kernel.org>,
x86@kernel.org, linux-kernel@vger.kernel.org
In-Reply-To: <20250331081327.256412-6-bhe@redhat.com>
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The following commit has been merged into the x86/mm branch of tip:
Commit-ID: 2b00d9031e42eabc8d32847d231ef48b8be0373d
Gitweb: https://git.kernel.org/tip/2b00d9031e42eabc8d32847d231ef48b8=
be0373d
Author: Baoquan He <bhe@redhat.com>
AuthorDate: Mon, 31 Mar 2025 16:13:25 +08:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 01 Apr 2025 22:48:56 +02:00
x86/mm: Simplify the pgd_leaf() and p4d_leaf() checks a bit
The functions return bool, simplify the checks.
[ mingo: Split off from two other patches. ]
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250331081327.256412-6-bhe@redhat.com
---
arch/x86/mm/pti.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c
index 5f0d579..1902998 100644
--- a/arch/x86/mm/pti.c
+++ b/arch/x86/mm/pti.c
@@ -185,7 +185,7 @@ static p4d_t *pti_user_pagetable_walk_p4d(unsigned long=
address)
=20
set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(new_p4d_page)));
}
- BUILD_BUG_ON(pgd_leaf(*pgd) !=3D 0);
+ BUILD_BUG_ON(pgd_leaf(*pgd));
=20
return p4d_offset(pgd, address);
}
@@ -206,7 +206,7 @@ static pmd_t *pti_user_pagetable_walk_pmd(unsigned long=
address)
if (!p4d)
return NULL;
=20
- BUILD_BUG_ON(p4d_leaf(*p4d) !=3D 0);
+ BUILD_BUG_ON(p4d_leaf(*p4d));
if (p4d_none(*p4d)) {
unsigned long new_pud_page =3D __get_free_page(gfp);
if (WARN_ON_ONCE(!new_pud_page))