linux-kernel - [PATCH] um: Remove unused timeval_to

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Date:   Thu, 24 Feb 2022 16:12:33 +0800
From:   David Gow <davidgow@...gle.com>
To:     Jeff Dike <jdike@...toit.com>, Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Kees Cook <keescook@...omium.org>
Cc:     linux-um@...ts.infradead.org, llvm@...ts.linux.dev,
        linux-kernel@...r.kernel.org, David Gow <davidgow@...gle.com>
Subject: [PATCH] um: Remove unused timeval_to_ns() function

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@...gle.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