linux-kernel - [PATCH 13/15] vdso/datapage: Trim down unnecessary includes

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Message-Id: <20260114-vdso-header-cleanups-v1-13-803b80ee97b4@linutronix.de>
Date: Wed, 14 Jan 2026 09:01:45 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, Russell King <linux@...linux.org.uk>, 
 Madhavan Srinivasan <maddy@...ux.ibm.com>, 
 Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, 
 "Christophe Leroy (CS GROUP)" <chleroy@...nel.org>, 
 Huacai Chen <chenhuacai@...nel.org>, WANG Xuerui <kernel@...0n.name>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...nel.org>, 
 Vincenzo Frascino <vincenzo.frascino@....com>, 
 Theodore Ts'o <tytso@....edu>, "Jason A. Donenfeld" <Jason@...c4.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 linuxppc-dev@...ts.ozlabs.org, loongarch@...ts.linux.dev, 
 linux-mips@...r.kernel.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH 13/15] vdso/datapage: Trim down unnecessary includes

vdso/datapage.h includes a lot of headers which are not strictly necessary.
Some of those headers include architecture-specific vDSO headers which
prevent the usage of vdso/datapage.h in kernel code on architectures
without an vDSO. This would be useful however to write generic code using
IS_ENABLED(), for example in drivers/char/random.c.

Remove the unnecessary includes.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 include/vdso/datapage.h | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/include/vdso/datapage.h b/include/vdso/datapage.h
index 752856b36a3a..9021b9580be2 100644
--- a/include/vdso/datapage.h
+++ b/include/vdso/datapage.h
@@ -4,24 +4,16 @@

 #ifndef __ASSEMBLY__

-#include <linux/compiler.h>
+#include <linux/types.h>
+
 #include <uapi/linux/bits.h>
 #include <uapi/linux/time.h>
-#include <uapi/linux/types.h>
-#include <uapi/asm-generic/errno-base.h>

 #include <vdso/align.h>
 #include <vdso/bits.h>
 #include <vdso/cache.h>
-#include <vdso/clocksource.h>
-#include <vdso/ktime.h>
-#include <vdso/limits.h>
-#include <vdso/math64.h>
 #include <vdso/page.h>
-#include <vdso/processor.h>
 #include <vdso/time.h>
-#include <vdso/time32.h>
-#include <vdso/time64.h>

 #ifdef CONFIG_ARCH_HAS_VDSO_TIME_DATA
 #include <asm/vdso/time_data.h>

-- 
2.52.0