* [PATCH] um: Remove unused timeval_to_ns() function
@ 2022-02-24 8:12 David Gow
2022-02-24 8:44 ` Anton Ivanov
0 siblings, 1 reply; 2+ messages in thread
From: David Gow @ 2022-02-24 8:12 UTC (permalink / raw)
To: Jeff Dike, Richard Weinberger, Anton Ivanov, Nick Desaulniers, Kees Cook
Cc: linux-um, llvm, linux-kernel, David Gow
The timeval_to_ns() function doesn't appear to be used anywhere, as far
as I (or git grep) can tell, and clang throws up a warning about it:
../arch/um/os-Linux/time.c:21:25: warning: unused function 'timeval_to_ns' [-Wunused-function]
static inline long long timeval_to_ns(const struct timeval *tv)
^
1 warning generated.
Signed-off-by: David Gow <davidgow@google.com>
---
Warning can be reproduced under clang 13.0.1-+rc1 after applying:
um: Allow builds with Clang -- https://lkml.org/lkml/2022/2/24/40
arch/um/os-Linux/time.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 6c5041c5560b..4d5591d96d8c 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -18,12 +18,6 @@
static timer_t event_high_res_timer = 0;
-static inline long long timeval_to_ns(const struct timeval *tv)
-{
- return ((long long) tv->tv_sec * UM_NSEC_PER_SEC) +
- tv->tv_usec * UM_NSEC_PER_USEC;
-}
-
static inline long long timespec_to_ns(const struct timespec *ts)
{
return ((long long) ts->tv_sec * UM_NSEC_PER_SEC) + ts->tv_nsec;
--
2.35.1.473.g83b2b277ed-goog
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] um: Remove unused timeval_to_ns() function
2022-02-24 8:12 [PATCH] um: Remove unused timeval_to_ns() function David Gow
@ 2022-02-24 8:44 ` Anton Ivanov
0 siblings, 0 replies; 2+ messages in thread
From: Anton Ivanov @ 2022-02-24 8:44 UTC (permalink / raw)
To: David Gow, Jeff Dike, Richard Weinberger, Nick Desaulniers, Kees Cook
Cc: linux-um, llvm, linux-kernel
On 24/02/2022 08:12, David Gow wrote:
> The timeval_to_ns() function doesn't appear to be used anywhere, as far
> as I (or git grep) can tell, and clang throws up a warning about it:
>
> ../arch/um/os-Linux/time.c:21:25: warning: unused function 'timeval_to_ns' [-Wunused-function]
> static inline long long timeval_to_ns(const struct timeval *tv)
Correct. Leftovers from the days when the timers subsystem was based on itimer_*() instead of POSIX timers.
> ^
> 1 warning generated.
>
> Signed-off-by: David Gow <davidgow@google.com>
> ---
>
> Warning can be reproduced under clang 13.0.1-+rc1 after applying:
> um: Allow builds with Clang -- https://lkml.org/lkml/2022/2/24/40
>
> arch/um/os-Linux/time.c | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
> index 6c5041c5560b..4d5591d96d8c 100644
> --- a/arch/um/os-Linux/time.c
> +++ b/arch/um/os-Linux/time.c
> @@ -18,12 +18,6 @@
>
> static timer_t event_high_res_timer = 0;
>
> -static inline long long timeval_to_ns(const struct timeval *tv)
> -{
> - return ((long long) tv->tv_sec * UM_NSEC_PER_SEC) +
> - tv->tv_usec * UM_NSEC_PER_USEC;
> -}
> -
> static inline long long timespec_to_ns(const struct timespec *ts)
> {
> return ((long long) ts->tv_sec * UM_NSEC_PER_SEC) + ts->tv_nsec;
>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
--
Anton R. Ivanov
Cambridgegreys Limited. Registered in England. Company Number 10273661
https://www.cambridgegreys.com/
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