[PATCH v2 7/9] MIPS: VDSO: Respect COMPAT_32BIT_TIME
From: Thomas Weißschuh <hidden>
Date: 2026-06-30 07:38:42
Also in:
linux-api, linux-arm-kernel, linux-mips, lkml, sparclinux
Subsystem:
mips, the rest · Maintainers:
Thomas Bogendoerfer, Linus Torvalds
If CONFIG_COMPAT_32BIT_TIME is disabled then the vDSO should not provide any 32-bit time related functionality. This is the intended effect of the kconfig option and also the fallback system calls would also not be implemented. Currently the kconfig option does not affect the gettimeofday() syscall, so also keep that in the vDSO. Signed-off-by: Thomas Weißschuh <redacted> --- arch/mips/vdso/vdso.lds.S | 2 ++ arch/mips/vdso/vgettimeofday.c | 3 +++ 2 files changed, 5 insertions(+)
diff --git a/arch/mips/vdso/vdso.lds.S b/arch/mips/vdso/vdso.lds.S
index 278ab6444e98..b11ee493c67f 100644
--- a/arch/mips/vdso/vdso.lds.S
+++ b/arch/mips/vdso/vdso.lds.S@@ -97,9 +97,11 @@ VERSION LINUX_2.6 { #ifdef CONFIG_GENERIC_GETTIMEOFDAY global: +#if _MIPS_SIM == _MIPS_SIM_ABI64 || defined(CONFIG_COMPAT_32BIT_TIME) __vdso_clock_gettime; __vdso_gettimeofday; __vdso_clock_getres; +#endif #if _MIPS_SIM != _MIPS_SIM_ABI64 __vdso_clock_gettime64; __vdso_clock_getres_time64;
diff --git a/arch/mips/vdso/vgettimeofday.c b/arch/mips/vdso/vgettimeofday.c
index 00f9fcfc327e..a1fb06b8973e 100644
--- a/arch/mips/vdso/vgettimeofday.c
+++ b/arch/mips/vdso/vgettimeofday.c@@ -12,6 +12,8 @@ #include <vdso/gettime.h> #if _MIPS_SIM != _MIPS_SIM_ABI64 + +#ifdef CONFIG_COMPAT_32BIT_TIME int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts) {
@@ -29,6 +31,7 @@ int __vdso_clock_getres(clockid_t clock_id, { return __cvdso_clock_getres_time32(clock_id, res); } +#endif /* CONFIG_COMPAT_32BIT_TIME */ int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
--
2.55.0