linux-kernel - [PATCH v2 04/13] tools/nolibc/time: drop invocation of gettimeofday system call

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Message-Id: <20251122-nolibc-uapi-types-v2-4-b814a43654f5@weissschuh.net>
Date: Sat, 22 Nov 2025 17:59:10 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, 
 Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH v2 04/13] tools/nolibc/time: drop invocation of
 gettimeofday system call

This invocation uses libc types with a system call. While this works
now, upcoming changes to 'struct timeval' would require type
conversions. If types are converted anyways, the clock_gettime() based
fallback can be used everywhere, simplifying the code.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 tools/include/nolibc/sys/time.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/tools/include/nolibc/sys/time.h b/tools/include/nolibc/sys/time.h
index 33782a19aae9..171187836e6d 100644
--- a/tools/include/nolibc/sys/time.h
+++ b/tools/include/nolibc/sys/time.h
@@ -22,9 +22,6 @@ static int sys_clock_gettime(clockid_t clockid, struct timespec *tp);
 static __attribute__((unused))
 int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
 {
-#ifdef __NR_gettimeofday
-	return my_syscall2(__NR_gettimeofday, tv, tz);
-#else
 	(void) tz; /* Non-NULL tz is undefined behaviour */
 
 	struct timespec tp;
@@ -37,7 +34,6 @@ int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
 	}
 
 	return ret;
-#endif
 }
 
 static __attribute__((unused))

-- 
2.52.0