From: Tian Tao <tiantao6@hisilicon.com>
To: <catalin.marinas@arm.com>, <will@kernel.org>,
<vincenzo.frascino@arm.com>, <tglx@linutronix.de>,
<linux-arm-kernel@lists.infradead.org>
Cc: linuxarm@huawei.com
Subject: [PATCH] arm64: vdso: Add extern declarations for vDSO time-related functions
Date: Tue, 15 Sep 2020 19:24:30 +0800 [thread overview]
Message-ID: <1600169070-13611-1-git-send-email-tiantao6@hisilicon.com> (raw)
Add extern declarations for vDSO time-related functions to notify the
compiler these functions will be used in somewhere to fix
"no previous prototype" compile warning.
arch/arm64/kernel/vdso/vgettimeofday.c:9:5: warning: no previous
prototype for ‘__kernel_clock_gettime’ [-Wmissing-prototypes]
int __kernel_clock_gettime(clockid_t clock,
^
arch/arm64/kernel/vdso/vgettimeofday.c:15:5: warning: no previous
prototype for ‘__kernel_gettimeofday’ [-Wmissing-prototypes]
int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
^
arch/arm64/kernel/vdso/vgettimeofday.c:21:5: warning: no previous
prototype for ‘__kernel_clock_getres’ [-Wmissing-prototypes]
int __kernel_clock_getres(clockid_t clock_id,
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
---
arch/arm64/kernel/vdso/vgettimeofday.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm64/kernel/vdso/vgettimeofday.c b/arch/arm64/kernel/vdso/vgettimeofday.c
index 4236cf3..e808481 100644
--- a/arch/arm64/kernel/vdso/vgettimeofday.c
+++ b/arch/arm64/kernel/vdso/vgettimeofday.c
@@ -6,18 +6,27 @@
*
*/
+extern
+int __kernel_clock_gettime(clockid_t clock,
+ struct __kernel_timespec *ts);
int __kernel_clock_gettime(clockid_t clock,
struct __kernel_timespec *ts)
{
return __cvdso_clock_gettime(clock, ts);
}
+extern
+int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
+ struct timezone *tz);
int __kernel_gettimeofday(struct __kernel_old_timeval *tv,
struct timezone *tz)
{
return __cvdso_gettimeofday(tv, tz);
}
+extern
+int __kernel_clock_getres(clockid_t clock_id,
+ struct __kernel_timespec *res);
int __kernel_clock_getres(clockid_t clock_id,
struct __kernel_timespec *res)
{
--
2.7.4
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next reply other threads:[~2020-09-15 11:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 11:24 Tian Tao [this message]
2020-09-15 11:48 ` [PATCH] arm64: vdso: Add extern declarations for vDSO time-related functions Will Deacon
2020-09-15 12:06 ` tiantao (H)
2020-09-18 14:41 ` Jean-Philippe Brucker
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