From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793748194; b=Wbrw7UMMtAQZi0D55ZsBzcK8uyu9wTdFRpUt/ddlXYvdJvueb6elozM9hez0DWxx3uCg 7cdQkuqoTFv1qgB5WFBnSSOYK3Vaau66ix20jsunHwxfql1/GVX6LdsrbdlARFitI6ZwR YTJxo5QiCZ7YIKMx+eAJHUIUuq0N5GFNQpJDoktvua32Ue9Yt+1kZIP354N4shUqWmSlR kZgx637BtIVJEo7xX1C72sI3Jr7cTaQ2sJW4Jw+aMHBrIIVkWYbdjGfD1/pSo0hbCbD9D 8fJTvBFTTAgHIgdlBvEQ7s9dCpGYpVm2Gr+HdG3a4lVLSqBM2mLaAnud936/X64VmNg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793748194; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Transfer-Encoding; bh=pzShWz/DzbQg/XkFP5Z/j7rrx7AHmZn5K8WC4q5jwsk=; b=2663BkIq64cBjNNZxhHXdm9N+ovv/TGV52HjsM16jPWwAzSFxiHFW1/DJld9WIpiRvaP heUXLwXhm97Y9Xj+qi96yF3b275UwUjXtzWEV18kx0jJ/sSjt9sL2QB0trBb7tiJtkRdz NUwtQbMMrKiWHYOHMDhrBeWwchghLdbRBOU9FljkhOwuTfPe4VT+BhIHbtHqpG2hvvMvE mN+SsBtllYO1Z1hvd5apZGOa2eCWE/d203N405jVijcetplsGap0cxexIUhD9NDD1CUjU DayVNsOca4SP+m5uOH66oARkMqjvEhUEnXhdTuMJ5YoTHms6dpO0B6T9nJahDmwjTTQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b="mmOw/OfN"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AA21A606A326; Tue, 3 Nov 2026 23:23:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=mmOw/OfN Received: by smtp.kernel.org (Postfix) with ESMTPSA id 652641F0093A; Tue, 3 Nov 2026 23:23:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793748190; bh=pzShWz/DzbQg/XkFP5Z/j7rrx7AHmZn5K8WC4q5jwsk=; h=From:To:Cc:Subject:Date; b=mmOw/OfNmzugTIUEmmf1i1zKSgIHIsGBn25xC0ohW77PZGEgb5fbKclTqiCtsWKGm tmm3v4PCLpyFxYQKiPLJoidcx+nRp3ir1JaICfab/dLpuQnkDujva7nkTBFZBCUNYl ecXYd2GrkJr965KuZb9oTts2l9NWMnfyJWl2bHZSSeYl2Zeg4+helSPU02IkU2XW0G fSqt9yTYeczoD94JQbi+9eV+FSNW+TJ+mkQ1MlxyDAvQ7ACuMI3hdillB7xUjl3qHE vjF436gDUel2WyB0+dHW+ycyEPhhwM7hist0b76/dD7wBUMf/NtVR+u8bUEEpL1KaN tXzOQ2n771T/A== From: Sasha Levin To: John Stultz , Thomas Gleixner , Anna-Maria Behnsen , Frederic Weisbecker Cc: Stephen Boyd , Miroslav Lichvar , Shuah Khan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH] selftests: timers: raw_skew: initialize mon Date: Tue, 3 Nov 2026 18:23:06 -0500 Message-ID: <20261103232307.1924618-2-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit gcc 16 doesn't see that get_monotonic_and_raw() always sets *mon, as the first iteration of its loop takes the diff == 0 branch, and warns once the function is inlined into main(): raw_skew.c:46:26: warning: '*(__time_t *)((char *)&mon + offsetof(struct timespec, tv_sec))' may be used uninitialized [-Wmaybe-uninitialized] Initialize mon to quiet it. Signed-off-by: Sasha Levin --- Found with gcc 16.2; gcc 14 and 15 and clang 21 don't warn. tools/testing/selftests/timers/raw_skew.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/raw_skew.c b/tools/testing/selftests/timers/raw_skew.c index dfca3e2d50d2e..ec9e5b2691c94 100644 --- a/tools/testing/selftests/timers/raw_skew.c +++ b/tools/testing/selftests/timers/raw_skew.c @@ -89,7 +89,7 @@ void get_monotonic_and_raw(struct timespec *mon, struct timespec *raw) int main(int argc, char **argv) { - struct timespec mon, raw, start, end; + struct timespec mon = {}, raw, start, end; long long delta1, delta2, interval, eppm, ppm; long tick_nom; struct timex tx1, tx2; -- 2.53.0