From patchwork Mon May 10 15:04:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 12248423 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9D26C43611 for ; Mon, 10 May 2021 15:05:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C88BA61421 for ; Mon, 10 May 2021 15:05:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241978AbhEJPGw (ORCPT ); Mon, 10 May 2021 11:06:52 -0400 Received: from mga03.intel.com ([134.134.136.65]:19307 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235904AbhEJPFc (ORCPT ); Mon, 10 May 2021 11:05:32 -0400 IronPort-SDR: muOn85VgRPyPHUb7+/qNvE635H04T4YfW5X0gUs7bCf5FyiHqjmF3CsrGlaUrpInZdoUxsaKnF O+WvJjHLtBGA== X-IronPort-AV: E=McAfee;i="6200,9189,9980"; a="199266433" X-IronPort-AV: E=Sophos;i="5.82,287,1613462400"; d="scan'208";a="199266433" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 May 2021 08:04:27 -0700 IronPort-SDR: 5HtizJ1vAOQZfmDWuujDPkjkF4zn0yMx9a+JK8MEiXghp0HskM5L/WkqyoCEer5wcgyVmNat77 67u0ynZXBGMg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,287,1613462400"; d="scan'208";a="470818104" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 May 2021 08:03:57 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 6A7D812A; Mon, 10 May 2021 18:04:16 +0300 (EEST) From: Andy Shevchenko To: Petr Mladek , JC Kuo , Joe Perches , Sumit Garg , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org, linux-nilfs@vger.kernel.org, kgdb-bugreport@lists.sourceforge.net Cc: Steven Rostedt , Sergey Senozhatsky , Andy Shevchenko , Rasmus Villemoes , Jonathan Corbet , Mathias Nyman , Greg Kroah-Hartman , Thierry Reding , Jonathan Hunter , Ryusuke Konishi , Jason Wessel , Daniel Thompson , Douglas Anderson Subject: [PATCH v1 1/4] lib/vsprintf: Allow to override date and time separator Date: Mon, 10 May 2021 18:04:10 +0300 Message-Id: <20210510150413.59356-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org ISO 8601 defines 'T' as a separator between date and time. Though, some ABIs use time and date with ' ' separator instead. Add a flavour to the %pt specifier to override default separator. Signed-off-by: Andy Shevchenko --- Documentation/core-api/printk-formats.rst | 6 +++++- lib/test_printf.c | 5 +++++ lib/vsprintf.c | 19 ++++++++++++++++--- 3 files changed, 26 insertions(+), 4 deletions(-) diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst index f063a384c7c8..bc85fd4685e7 100644 --- a/Documentation/core-api/printk-formats.rst +++ b/Documentation/core-api/printk-formats.rst @@ -514,9 +514,10 @@ Time and date :: %pt[RT] YYYY-mm-ddTHH:MM:SS + %pt[RT]s YYYY-mm-dd HH:MM:SS %pt[RT]d YYYY-mm-dd %pt[RT]t HH:MM:SS - %pt[RT][dt][r] + %pt[RT][dt][rs] For printing date and time as represented by:: @@ -528,6 +529,9 @@ in human readable format. By default year will be incremented by 1900 and month by 1. Use %pt[RT]r (raw) to suppress this behaviour. +The %pt[RT]s (space) will override ISO 8601 by using ' ' instead of 'T' +between date and time. It won't have any effect when date or time is omitted. + Passed by reference. struct clk diff --git a/lib/test_printf.c b/lib/test_printf.c index ec0d5976bb69..8ac71aee46af 100644 --- a/lib/test_printf.c +++ b/lib/test_printf.c @@ -528,6 +528,11 @@ time_and_date(void) test("0119-00-04T15:32:23", "%ptTr", &t); test("15:32:23|2019-01-04", "%ptTt|%ptTd", &t, &t); test("15:32:23|0119-00-04", "%ptTtr|%ptTdr", &t, &t); + + test("2019-01-04 15:32:23", "%ptTs", &t); + test("0119-00-04 15:32:23", "%ptTsr", &t); + test("15:32:23|2019-01-04", "%ptTts|%ptTds", &t, &t); + test("15:32:23|0119-00-04", "%ptTtrs|%ptTdrs", &t, &t); } static void __init diff --git a/lib/vsprintf.c b/lib/vsprintf.c index f0c35d9b65bf..5f36c7a43cdc 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1834,7 +1834,8 @@ char *rtc_str(char *buf, char *end, const struct rtc_time *tm, struct printf_spec spec, const char *fmt) { bool have_t = true, have_d = true; - bool raw = false; + bool raw = false, space = false; + bool found = true; int count = 2; if (check_pointer(&buf, end, tm, spec)) @@ -1851,14 +1852,26 @@ char *rtc_str(char *buf, char *end, const struct rtc_time *tm, break; } - raw = fmt[count] == 'r'; + do { + switch (fmt[count++]) { + case 'r': + raw = true; + break; + case 's': + space = true; + break; + default: + found = false; + break; + } + } while (found); if (have_d) buf = date_str(buf, end, tm, raw); if (have_d && have_t) { /* Respect ISO 8601 */ if (buf < end) - *buf = 'T'; + *buf = space ? ' ' : 'T'; buf++; } if (have_t)