[PATCH 06/11] riscv: vdso: Untangle kconfig logic

[Thomas Weißschuh]

On riscv32 the generic vDSO infrastructure is used but without its
time-related functionality. The kconfig logic to implement this
treats HAVE_GENERIC_VDSO as a synonym for GENERIC_GETTIMEOFDAY.
This works today due to some underlying issues in how the generic vDSO
library works. Some future cleanups will break this logic.

Restructure the kconfig logic, so HAVE_GENERIC_VDSO refers to the generic
library in general and GENERIC_GETTIMEOFDAY refers to its time-related
functionality.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh at linutronix.de>
---
 arch/riscv/Kconfig | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index a4b233a0659ed80c0eb6b118ea8c8db81ed3fdba..e4ac0e833ecfdb976134e9009a2cdfdea789f13d 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -52,7 +52,7 @@ config RISCV
 	select ARCH_HAS_SYSCALL_WRAPPER
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAS_UBSAN
-	select ARCH_HAS_VDSO_ARCH_DATA if GENERIC_VDSO_DATA_STORE
+	select ARCH_HAS_VDSO_ARCH_DATA if HAVE_GENERIC_VDSO
 	select ARCH_KEEP_MEMBLOCK if ACPI
 	select ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE	if 64BIT && MMU
 	select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
@@ -107,7 +107,7 @@ config RISCV
 	select GENERIC_CPU_VULNERABILITIES
 	select GENERIC_EARLY_IOREMAP
 	select GENERIC_ENTRY
-	select GENERIC_GETTIMEOFDAY if HAVE_GENERIC_VDSO
+	select GENERIC_GETTIMEOFDAY if HAVE_GENERIC_VDSO && 64BIT
 	select GENERIC_IDLE_POLL_SETUP
 	select GENERIC_IOREMAP if MMU
 	select GENERIC_IRQ_IPI if SMP
@@ -120,9 +120,9 @@ config RISCV
 	select GENERIC_PCI_IOMAP
 	select GENERIC_SCHED_CLOCK
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_TIME_VSYSCALL if MMU && 64BIT
-	select GENERIC_VDSO_DATA_STORE if MMU
-	select GENERIC_VDSO_TIME_NS if HAVE_GENERIC_VDSO
+	select GENERIC_TIME_VSYSCALL if GENERIC_GETTIMEOFDAY
+	select GENERIC_VDSO_DATA_STORE if HAVE_GENERIC_VDSO
+	select GENERIC_VDSO_TIME_NS if GENERIC_GETTIMEOFDAY
 	select HARDIRQS_SW_RESEND
 	select HAS_IOPORT if MMU
 	select HAVE_ALIGNED_STRUCT_PAGE
@@ -165,7 +165,7 @@ config RISCV
 	select HAVE_FUNCTION_ARG_ACCESS_API
 	select HAVE_FUNCTION_ERROR_INJECTION
 	select HAVE_GCC_PLUGINS
-	select HAVE_GENERIC_VDSO if MMU && 64BIT
+	select HAVE_GENERIC_VDSO if MMU
 	select HAVE_IRQ_TIME_ACCOUNTING
 	select HAVE_KERNEL_BZIP2 if !XIP_KERNEL && !EFI_ZBOOT
 	select HAVE_KERNEL_GZIP if !XIP_KERNEL && !EFI_ZBOOT
@@ -221,7 +221,7 @@ config RISCV
 	select THREAD_INFO_IN_TASK
 	select TRACE_IRQFLAGS_SUPPORT
 	select UACCESS_MEMCPY if !MMU
-	select VDSO_GETRANDOM if HAVE_GENERIC_VDSO
+	select VDSO_GETRANDOM if HAVE_GENERIC_VDSO && 64BIT
 	select USER_STACKTRACE_SUPPORT
 	select ZONE_DMA32 if 64BIT
 

-- 
2.50.1