[PATCH 04/11] vdso/gettimeofday: Remove !CONFIG_TIME_NS stubs

From: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
To: Andy Lutomirski <luto@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	 Vincenzo Frascino <vincenzo.frascino@arm.com>,
	 Paul Walmsley <paul.walmsley@sifive.com>,
	 Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	 Alexandre Ghiti <alex@ghiti.fr>, Nam Cao <namcao@linutronix.de>,
	 Russell King <linux@armlinux.org.uk>,
	Ingo Molnar <mingo@redhat.com>,  Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	 x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	 Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	 Huacai Chen <chenhuacai@kernel.org>,
	WANG Xuerui <kernel@xen0n.name>,
	 Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	 Madhavan Srinivasan <maddy@linux.ibm.com>,
	 Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	 Christophe Leroy <christophe.leroy@csgroup.eu>,
	 Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	 Alexander Gordeev <agordeev@linux.ibm.com>,
	 Christian Borntraeger <borntraeger@linux.ibm.com>,
	 Sven Schnelle <svens@linux.ibm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	 Christian Brauner <brauner@kernel.org>,
	Shuah Khan <shuah@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev,
	linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-s390@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-kselftest@vger.kernel.org,
	"Rasmus Villemoes" <linux@rasmusvillemoes.dk>,
	"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
Subject: [PATCH 04/11] vdso/gettimeofday: Remove !CONFIG_TIME_NS stubs
Date: Tue, 26 Aug 2025 08:17:07 +0200	[thread overview]
Message-ID: <20250826-vdso-cleanups-v1-4-d9b65750e49f@linutronix.de> (raw)
In-Reply-To: <20250826-vdso-cleanups-v1-0-d9b65750e49f@linutronix.de>

All calls of these functions are already gated behind CONFIG_TIME_NS. The
compiler will already optimize them away if time namespaces are disabled.

Drop the unnecessary stubs.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
---
 lib/vdso/gettimeofday.c | 25 -------------------------
 1 file changed, 25 deletions(-)

diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index 02ea19f671647e9a1b8c3e7ea0cbff33b4024711..1e2a40b8d2c6c2356cfc678a1ea441ec1bad181a 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -108,8 +108,6 @@ bool vdso_get_timestamp(const struct vdso_time_data *vd, const struct vdso_clock
 	return true;
 }
 
-#ifdef CONFIG_TIME_NS
-
 #ifdef CONFIG_GENERIC_VDSO_DATA_STORE
 static __always_inline
 const struct vdso_time_data *__arch_get_vdso_u_timens_data(const struct vdso_time_data *vd)
@@ -149,20 +147,6 @@ bool do_hres_timens(const struct vdso_time_data *vdns, const struct vdso_clock *
 
 	return true;
 }
-#else
-static __always_inline
-const struct vdso_time_data *__arch_get_vdso_u_timens_data(const struct vdso_time_data *vd)
-{
-	return NULL;
-}
-
-static __always_inline
-bool do_hres_timens(const struct vdso_time_data *vdns, const struct vdso_clock *vcns,
-		    clockid_t clk, struct __kernel_timespec *ts)
-{
-	return false;
-}
-#endif
 
 static __always_inline
 bool do_hres(const struct vdso_time_data *vd, const struct vdso_clock *vc,
@@ -204,7 +188,6 @@ bool do_hres(const struct vdso_time_data *vd, const struct vdso_clock *vc,
 	return true;
 }
 
-#ifdef CONFIG_TIME_NS
 static __always_inline
 bool do_coarse_timens(const struct vdso_time_data *vdns, const struct vdso_clock *vcns,
 		      clockid_t clk, struct __kernel_timespec *ts)
@@ -233,14 +216,6 @@ bool do_coarse_timens(const struct vdso_time_data *vdns, const struct vdso_clock
 
 	return true;
 }
-#else
-static __always_inline
-bool do_coarse_timens(const struct vdso_time_data *vdns, const struct vdso_clock *vcns,
-		      clockid_t clk, struct __kernel_timespec *ts)
-{
-	return false;
-}
-#endif
 
 static __always_inline
 bool do_coarse(const struct vdso_time_data *vd, const struct vdso_clock *vc,

-- 
2.50.1


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