From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 29474C433E1 for ; Thu, 13 Aug 2020 22:49:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0BBCF20771 for ; Thu, 13 Aug 2020 22:49:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726568AbgHMWtc (ORCPT ); Thu, 13 Aug 2020 18:49:32 -0400 Received: from mail-lj1-f195.google.com ([209.85.208.195]:35753 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726205AbgHMWtc (ORCPT ); Thu, 13 Aug 2020 18:49:32 -0400 Received: by mail-lj1-f195.google.com with SMTP id i10so7978749ljn.2 for ; Thu, 13 Aug 2020 15:49:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=zRuFWtkWuwr1fLeCDAALQlbW5AVE5mdsmWUm923k4q8=; b=ejHlbAchen2yZfhO6SClK7cVndRuXmzI9sgrt4kYTYus0aeQLuUyO92bLOnOiaiNv9 XKqknPtltl3FsBSzlQNxKbCmK8O1zR7xiPv878Sl6QULWPNpuxjQ7/3/nl59hjq+hRsI R7UdSkxMtwOR12UeWA8sp8tksKkJPVhwyimlmU1mDbUtTVWsbnQpW70R/oDn9hSpwg3v kCEC551dWgm84B2fFDBQSbFfV8m6RqOn3XIeznTgq0s9BoNWvdIPwbHpxyqkhSs22bFH DbVnYOfSDjPE6jc6rnIb4RQSqgDJBs8x17oiTkb8+GRbiSpvyIDJLW01B8nyBmuRy7qt Lh8g== X-Gm-Message-State: AOAM531I02+oP6IKpT7tXfo6H7Agm1ZsqqASmK9hwR6Wtk4HyTT4PaM5 BTgZPRuEdoVKMZUThRhWJWE= X-Google-Smtp-Source: ABdhPJx3I1oXFuJyHp1H99mgT8ya1lFbn5hsF3jqLcfTg4TI2hcnAqSBv7GcBsPjzql7PfCxh8bLFw== X-Received: by 2002:a2e:9a93:: with SMTP id p19mr4925lji.67.1597358970302; Thu, 13 Aug 2020 15:49:30 -0700 (PDT) Received: from localhost.localdomain (broadband-37-110-38-130.ip.moscow.rt.ru. [37.110.38.130]) by smtp.googlemail.com with ESMTPSA id v20sm1375718lji.64.2020.08.13.15.49.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Aug 2020 15:49:29 -0700 (PDT) From: Denis Efremov To: Julia Lawall Cc: Denis Efremov , cocci@systeme.lip6.fr, linux-kernel@vger.kernel.org Subject: [PATCH] coccinelle: api: add sprintf() support to device_attr_show Date: Fri, 14 Aug 2020 01:49:07 +0300 Message-Id: <20200813224907.447354-1-efremov@linux.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's safe to use sprintf() for simple cases in device_attr_show type of functions. Add support for sprintf() in patch mode to the device_attr_show.cocci script to print numbers and pointers. Signed-off-by: Denis Efremov --- Interesting enough that with this patch coccinelle starts to skip patch generation in some cases. For example, it skips patch for drivers/base/core.c This is an unexpected result for me. scripts/coccinelle/api/device_attr_show.cocci | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/scripts/coccinelle/api/device_attr_show.cocci b/scripts/coccinelle/api/device_attr_show.cocci index d8ec4bb8ac41..1248b8c76cfe 100644 --- a/scripts/coccinelle/api/device_attr_show.cocci +++ b/scripts/coccinelle/api/device_attr_show.cocci @@ -30,15 +30,45 @@ ssize_t show(struct device *dev, struct device_attribute *attr, char *buf) @rp depends on patch@ identifier show, dev, attr, buf; +constant str; @@ ssize_t show(struct device *dev, struct device_attribute *attr, char *buf) { <... +( + return +- snprintf ++ sprintf + (buf, +- \(PAGE_SIZE\|PAGE_SIZE - 1\), + str); +| + return +- snprintf ++ sprintf + (buf, +- \(PAGE_SIZE\|PAGE_SIZE - 1\), + \("%i"\|"%i\n"\|"%li"\|"%li\n"\|"%lli"\|"%lli\n"\| + "%d"\|"%d\n"\|"%ld"\|"%ld\n"\|"%lld"\|"%lld\n"\| + "%u"\|"%u\n"\|"%lu"\|"%lu\n"\|"%llu"\|"%llu\n"\| + "%x"\|"%x\n"\|"%lx"\|"%lx\n"\|"%llx"\|"%llx\n"\| + "%X"\|"%X\n"\|"%lX"\|"%lX\n"\|"%llX"\|"%llX\n"\| + "0x%x"\|"0x%x\n"\|"0x%lx"\|"0x%lx\n"\|"0x%llx"\|"0x%llx\n"\| + "0x%X"\|"0x%X\n"\|"0x%lX"\|"0x%lX\n"\|"0x%llX"\|"0x%llX\n"\| + "%02x\n"\|"%03x\n"\|"%04x\n"\|"%08x\n"\| + "%02X\n"\|"%03X\n"\|"%04X\n"\|"%08X\n"\| + "0x%02x\n"\|"0x%03x\n"\|"0x%04x\n"\|"0x%08x\n"\| + "0x%02X\n"\|"0x%03X\n"\|"0x%04X\n"\|"0x%08X\n"\| + "%zd"\|"%zd\n"\|"%zu"\|"%zu\n"\|"%zx"\|"%zx\n"\| + "%c"\|"%c\n"\|"%p"\|"%p\n"\|"%pU\n"\|"%pUl\n"\|"%hu\n"\), + ...); +| return - snprintf + scnprintf (...); +) ...> } -- 2.26.2