[PATCH 5/6] vDSO: Drop HAVE_GENERIC_VDSO from architecture kconfig files
From: Thomas Weißschuh
Date: Thu Jul 09 2026 - 03:29:39 EST
Now that GENERIC_GETTIMEOFDAY and VDSO_GETRANDOM enable
HAVE_GENERIC_VDSO automatically, the architecture specific kconfig files
do not need to do so anymore.
Remove the corresponding lines.
Keep them for riscv, loongarch and powerpc as those have their own
explicit usage of the vDSO datastore provided by HAVE_GENERIC_VDSO.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
---
arch/arm/mm/Kconfig | 1 -
arch/arm64/Kconfig | 1 -
arch/mips/Kconfig | 1 -
arch/riscv/Kconfig | 4 ++--
arch/s390/Kconfig | 1 -
arch/sparc/Kconfig | 1 -
arch/x86/Kconfig | 1 -
7 files changed, 2 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 871bd58d2ccc..f7bea397a201 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -924,7 +924,6 @@ config VDSO
bool "Enable VDSO for acceleration of some system calls"
depends on AEABI && MMU && CPU_V7
default y if ARM_ARCH_TIMER
- select HAVE_GENERIC_VDSO
select GENERIC_GETTIMEOFDAY
help
Place in the process address space an ELF shared object
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b3afe0688919..11e733b6a3cf 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -229,7 +229,6 @@ config ARM64
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_KPROBES
select HAVE_KRETPROBES
- select HAVE_GENERIC_VDSO
select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
select HOTPLUG_SMT if HOTPLUG_CPU
select IRQ_DOMAIN
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 8555bbf47c63..a06f24317306 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -3163,7 +3163,6 @@ config MIPS_EXTERNAL_TIMER
config MIPS_GENERIC_GETTIMEOFDAY
def_bool y
select GENERIC_GETTIMEOFDAY
- select HAVE_GENERIC_VDSO
depends on CSRC_R4K || CLKSRC_MIPS_GIC
# GCC (at least up to version 9.2) appears to emit function calls that make use
# of the GOT when targeting microMIPS, which we can't use in the VDSO due to
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 353cbfcff783..9aa8c4df0cd8 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -110,7 +110,7 @@ config RISCV
select GENERIC_CPU_VULNERABILITIES
select GENERIC_EARLY_IOREMAP
select GENERIC_ENTRY
- select GENERIC_GETTIMEOFDAY if HAVE_GENERIC_VDSO && 64BIT
+ select GENERIC_GETTIMEOFDAY if MMU && 64BIT
select GENERIC_IDLE_POLL_SETUP
select GENERIC_IOREMAP if MMU
select HAVE_IOREMAP_PROT if MMU
@@ -227,7 +227,7 @@ config RISCV
select THREAD_INFO_IN_TASK
select TRACE_IRQFLAGS_SUPPORT
select UACCESS_MEMCPY if !MMU
- select VDSO_GETRANDOM if HAVE_GENERIC_VDSO && 64BIT
+ select VDSO_GETRANDOM if MMU && 64BIT
select USER_STACKTRACE_SUPPORT
select ZONE_DMA32 if 64BIT
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 84404e6778d5..c9c55e3ddf1d 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -215,7 +215,6 @@ config S390
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_GCC_PLUGINS
- select HAVE_GENERIC_VDSO
select HAVE_IOREMAP_PROT if PCI
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_GZIP
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 0e9c906c4b5d..4dd79311133f 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -113,7 +113,6 @@ config SPARC64
select ARCH_SUPPORTS_SCHED_SMT if SMP
select ARCH_SUPPORTS_SCHED_MC if SMP
select ARCH_HAS_LAZY_MMU_MODE
- select HAVE_GENERIC_VDSO
select GENERIC_GETTIMEOFDAY
config ARCH_PROC_KCORE_TEXT
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bdad90f210e4..2f4a78024a96 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -302,7 +302,6 @@ config X86
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_UNWIND_USER_FP if X86_64
select HAVE_USER_RETURN_NOTIFIER
- select HAVE_GENERIC_VDSO
select VDSO_GETRANDOM if X86_64
select HOTPLUG_PARALLEL if SMP && X86_64
select HOTPLUG_SMT if SMP
--
2.55.0