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| author | Arnd Bergmann <arnd@arndb.de> | 2023-11-08 13:58:36 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2023-11-23 11:32:32 +0100 |
| commit | 42874e4eb35bdfc54f8514685e50434098ba4f6c (patch) | |
| tree | 29f59d539262ceab775e81d57c9db12b0e7051cb /arch/loongarch | |
| parent | arch: include linux/cpu.h for trap_init() prototype (diff) | |
| download | linux-42874e4eb35bdfc54f8514685e50434098ba4f6c.tar.xz linux-42874e4eb35bdfc54f8514685e50434098ba4f6c.zip | |
arch: vdso: consolidate gettime prototypes
The VDSO functions are defined as globals in the kernel sources but intended
to be called from userspace, so there is no need to declare them in a kernel
side header.
Without a prototype, this now causes warnings such as
arch/mips/vdso/vgettimeofday.c:14:5: error: no previous prototype for '__vdso_clock_gettime' [-Werror=missing-prototypes]
arch/mips/vdso/vgettimeofday.c:28:5: error: no previous prototype for '__vdso_gettimeofday' [-Werror=missing-prototypes]
arch/mips/vdso/vgettimeofday.c:36:5: error: no previous prototype for '__vdso_clock_getres' [-Werror=missing-prototypes]
arch/mips/vdso/vgettimeofday.c:42:5: error: no previous prototype for '__vdso_clock_gettime64' [-Werror=missing-prototypes]
arch/sparc/vdso/vclock_gettime.c:254:1: error: no previous prototype for '__vdso_clock_gettime' [-Werror=missing-prototypes]
arch/sparc/vdso/vclock_gettime.c:282:1: error: no previous prototype for '__vdso_clock_gettime_stick' [-Werror=missing-prototypes]
arch/sparc/vdso/vclock_gettime.c:307:1: error: no previous prototype for '__vdso_gettimeofday' [-Werror=missing-prototypes]
arch/sparc/vdso/vclock_gettime.c:343:1: error: no previous prototype for '__vdso_gettimeofday_stick' [-Werror=missing-prototypes]
Most architectures have already added workarounds for these by adding
declarations somewhere, but since these are all compatible, we should
really just have one copy, with an #ifdef check for the 32-bit vs
64-bit variant and use that everywhere.
Unfortunately, the sparc an um versions are currently incompatible
since they never added support for __vdso_clock_gettime64() in 32-bit
userland. For the moment, I'm leaving this one out, as I can't
easily test it and it requires a larger rework.
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/loongarch')
| -rw-r--r-- | arch/loongarch/vdso/vgettimeofday.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/loongarch/vdso/vgettimeofday.c b/arch/loongarch/vdso/vgettimeofday.c index 8f22863bd7ea..0885c1f3a89d 100644 --- a/arch/loongarch/vdso/vgettimeofday.c +++ b/arch/loongarch/vdso/vgettimeofday.c @@ -5,23 +5,18 @@ * Copyright (C) 2020-2022 Loongson Technology Corporation Limited */ #include <linux/types.h> +#include <vdso/gettime.h> -extern -int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts); int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts) { return __cvdso_clock_gettime(clock, ts); } -extern -int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz); int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz) { return __cvdso_gettimeofday(tv, tz); } -extern -int __vdso_clock_getres(clockid_t clock_id, struct __kernel_timespec *res); int __vdso_clock_getres(clockid_t clock_id, struct __kernel_timespec *res) { return __cvdso_clock_getres(clock_id, res); |