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 118375381 for ; Mon, 19 Jun 2023 10:42:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8A92CC433C0; Mon, 19 Jun 2023 10:42:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1687171333; bh=ADPuoOqyYG5u8UI1C67863VARFTw91JResG5/++W1s8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E2m/O4nRl+hsW/YOfX3rX1YzdCSd1WIIxCoy827077lPcXmoHuseLR06NMelLk4iP VSg3za/ocYro/H9LPLwKCiY5kfbrp7pobKycowzz9Im6qjbF8et7LSuTXvlOLLfeKp AslzxECxK7b0RI0nIlds1u/urOUB5K9gfjrKxN2c= 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 4.19 43/49] selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET Date: Mon, 19 Jun 2023 12:30:21 +0200 Message-ID: <20230619102132.177387179@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230619102129.856988902@linuxfoundation.org> References: <20230619102129.856988902@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 a5d8f0ab0da00..60f0f24cee30e 100644 --- a/tools/testing/selftests/ptp/testptp.c +++ b/tools/testing/selftests/ptp/testptp.c @@ -502,11 +502,11 @@ 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