From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 02 Feb 2023 14:35:35 +0100 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1pNZkX-00BQti-6s for lore@lore.pengutronix.de; Thu, 02 Feb 2023 14:35:35 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pNZkT-0003sW-RV for lore@pengutronix.de; Thu, 02 Feb 2023 14:35:34 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=XnrpbpphceA9VS/g8VJyeDwZxmk/jYmiBnJ7Pqt8je0=; b=WyVeMnHtLq7Ln2edDTm5KOECf1 4EA/7PDZHg9AIi3482J/rta//FNAGjY75kSVEaaqWlOUJTPesSmEa89Ia9rG7zfVE/KlxU97IN4W+ D2WeLlHLKANE1ccz8Fz+1k69npYlXrW8uCWaDowbbX097Lwr15t4UrLSHOf8Tq7/ls49RXM2g11CS vb/8MprnplCMZt29JfK03Hhm7tUnrBPqCx5l/iTH2YTjAX9BKZifvOSJwCD0+Mvpyqf4v1fs4A96x mTv3uGRIkNLWxnCJ/kvzg7unFoWLg+htCZLZbaGQdwmH80dn4cPTht5VLqJezMF4530a5uU+1cuTr jT9PkLsA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pNZjO-00G1ia-Tp; Thu, 02 Feb 2023 13:34:26 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pNZjI-00G1gX-Ey for barebox@lists.infradead.org; Thu, 02 Feb 2023 13:34:21 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pNZjH-0003e0-0J; Thu, 02 Feb 2023 14:34:19 +0100 Received: from [2a0a:edc0:0:1101:1d::54] (helo=dude05.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pNZjF-002BUJ-0p; Thu, 02 Feb 2023 14:34:18 +0100 Received: from afa by dude05.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pNZjF-001Mds-J8; Thu, 02 Feb 2023 14:34:17 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Christian Melki , Ahmad Fatoum Date: Thu, 2 Feb 2023 14:34:13 +0100 Message-Id: <20230202133415.319020-1-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230202_053420_518570_AD130988 X-CRM114-Status: UNSURE ( 7.59 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.7 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH master v2 1/3] include: linux/printk: implement pr_*_once macros X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) These are useful as a less verbose alternative to WARN_ONCE, which also prints a stack trace if possible. Signed-off-by: Ahmad Fatoum --- v1 -> v2: unchanged --- include/linux/printk.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/linux/printk.h b/include/linux/printk.h index 2fd6551e0ccb..a9d1b05f6f0f 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -94,6 +94,15 @@ static inline int dev_err_probe(struct device *dev, int err, const char *fmt, (level) <= LOGLEVEL ? pr_print((level), (format), ##args) : 0; \ }) +#define __pr_printk_once(level, format, args...) do { \ + static bool __print_once; \ + \ + if (!__print_once && (level) <= LOGLEVEL) { \ + __print_once = true; \ + pr_print((level), (format), ##args); \ + } \ +} while (0) + #ifndef pr_fmt #define pr_fmt(fmt) fmt #endif @@ -110,7 +119,18 @@ static inline int dev_err_probe(struct device *dev, int err, const char *fmt, #define pr_vdebug(fmt, arg...) __pr_printk(8, pr_fmt(fmt), ##arg) #define pr_cont(fmt, arg...) __pr_printk(-1, fmt, ##arg) +#define pr_emerg_once(fmt, arg...) __pr_printk_once(0, pr_fmt(fmt), ##arg) +#define pr_alert_once(fmt, arg...) __pr_printk_once(1, pr_fmt(fmt), ##arg) +#define pr_crit_once(fmt, arg...) __pr_printk_once(2, pr_fmt(fmt), ##arg) +#define pr_err_once(fmt, arg...) __pr_printk_once(3, pr_fmt(fmt), ##arg) +#define pr_warning_once(fmt, arg...) __pr_printk_once(4, pr_fmt(fmt), ##arg) +#define pr_notice_once(fmt, arg...) __pr_printk_once(5, pr_fmt(fmt), ##arg) +#define pr_info_once(fmt, arg...) __pr_printk_once(6, pr_fmt(fmt), ##arg) +#define pr_debug_once(fmt, arg...) __pr_printk_once(7, pr_fmt(fmt), ##arg) +#define pr_vdebug_once(fmt, arg...) __pr_printk_once(8, pr_fmt(fmt), ##arg) + #define pr_warn pr_warning +#define pr_warn_once pr_warning_once int memory_display(const void *addr, loff_t offs, unsigned nbytes, int size, int swab); -- 2.30.2