From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3678EBE4B for ; Mon, 19 Jun 2023 10:56:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AFBE4C433C9; Mon, 19 Jun 2023 10:56:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1687172197; bh=FCA6QZUmxeEAPoO/HYBDu+l72JcuM+mzPUZVjnTKZ8I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C4tpIngCHRo+l0O5D9FG12t1qaKLCHrobZknfU1PPWql1za82WqCzGx29xi+nfl0o SX4IVHjKsO1338BlQNuRkrzmfbE21rh2oB8NojtkiMtuBobIG4U0M73qIopLs+ok7y LQSAq0KGVM6L7ymFQ79ER7O6QcTcZf6No/BpI3eI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alex Maftei , Richard Cochran , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.10 72/89] selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET Date: Mon, 19 Jun 2023 12:31:00 +0200 Message-ID: <20230619102141.543942099@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230619102138.279161276@linuxfoundation.org> References: <20230619102138.279161276@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Alex Maftei [ Upstream commit 76a4c8b82938bc5020b67663db41f451684bf327 ] Previously, timestamps were printed using "%lld.%u" which is incorrect for nanosecond values lower than 100,000,000 as they're fractional digits, therefore leading zeros are meaningful. This patch changes the format strings to "%lld.%09u" in order to add leading zeros to the nanosecond value. Fixes: 568ebc5985f5 ("ptp: add the PTP_SYS_OFFSET ioctl to the testptp program") Fixes: 4ec54f95736f ("ptp: Fix compiler warnings in the testptp utility") Fixes: 6ab0e475f1f3 ("Documentation: fix misc. warnings") Signed-off-by: Alex Maftei Acked-by: Richard Cochran Link: https://lore.kernel.org/r/20230615083404.57112-1-alex.maftei@amd.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- tools/testing/selftests/ptp/testptp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c index f7911aaeb0075..aa474febb4712 100644 --- a/tools/testing/selftests/ptp/testptp.c +++ b/tools/testing/selftests/ptp/testptp.c @@ -492,11 +492,11 @@ int main(int argc, char *argv[]) interval = t2 - t1; offset = (t2 + t1) / 2 - tp; - printf("system time: %lld.%u\n", + printf("system time: %lld.%09u\n", (pct+2*i)->sec, (pct+2*i)->nsec); - printf("phc time: %lld.%u\n", + printf("phc time: %lld.%09u\n", (pct+2*i+1)->sec, (pct+2*i+1)->nsec); - printf("system time: %lld.%u\n", + printf("system time: %lld.%09u\n", (pct+2*i+2)->sec, (pct+2*i+2)->nsec); printf("system/phc clock time offset is %" PRId64 " ns\n" "system clock time delay is %" PRId64 " ns\n", -- 2.39.2