From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 17 Aug 2026 16:12:23 +0200 Received: from mx1.white.stw.pengutronix.de ([185.203.200.13]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wvy4c-0049VO-2U for lore@lore.pengutronix.de; Mon, 17 Aug 2026 16:12:23 +0200 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by mx1.white.stw.pengutronix.de (Postfix) with ESMTPS id 6027F2021FD for ; Mon, 17 Aug 2026 16:12:23 +0200 (CEST) Authentication-Results: mx1.white.stw.pengutronix.de; dkim=pass header.d=lists.infradead.org header.s=bombadil.20210309 header.b=abu42wIv; dmarc=none; spf=pass (mx1.white.stw.pengutronix.de: domain of "barebox-bounces+lore=pengutronix.de@lists.infradead.org" designates 2607:7c80:54:3::133 as permitted sender) smtp.mailfrom="barebox-bounces+lore=pengutronix.de@lists.infradead.org" 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:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=HHmbokW9olzFHNOQ+D5s1WhyVTDbgci4jWWwqlJK9FM=; b=abu42wIvKjIawNdVekJpoyl2Lg 170rj0tog6qHxnVrME4Uk626x9jzetFqnMipRomiEVhSLhAaiHwa8WhYVLWmxELdbFJTWI7yfxckK ioHzAoNqeBlesSKknalO1QM9wojgRj+7ZGXym6lDtJ5jckvdWb1SCXYeDwEi0Mdgv+mUTt4++ZOb8 q0g0bjbaaJSDnhEUzSD86qwOoefHQsouZ3lAE4iAEsSleS2ipD51rVJHYqDcW0JW+bxkkn35gMZ1l kE+NAT7GZCD7/L9BLWlda4TfxTbZUVjzsaijxiKZWcJHGFRhgVG31E0Nwtaq5GktUiJ3MY8EVpn4S CgHfyreA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wvxu1-00000006G2w-3y5V; Mon, 17 Aug 2026 14:01:25 +0000 Received: from mx1.white.stw.pengutronix.de ([2a0a:edc0:0:b01:1d::107]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wvxty-00000006G19-1tWP for barebox@lists.infradead.org; Mon, 17 Aug 2026 14:01:24 +0000 Received: from drehscheibe.grey.stw.pengutronix.de (drehscheibe.grey.stw.pengutronix.de [IPv6:2a0a:edc0:0:c01:1d::a2]) (Authenticated sender: relay-from-drehscheibe.grey.stw.pengutronix.de) by mx1.white.stw.pengutronix.de (Postfix) with ESMTPSA id E3BD8202200; Mon, 17 Aug 2026 16:01:18 +0200 (CEST) Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wvxtu-001xrs-2O; Mon, 17 Aug 2026 16:01:18 +0200 Received: from [::1] (helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.98.2) (envelope-from ) id 1wvxtu-0000000F1aR-2V48; Mon, 17 Aug 2026 16:01:18 +0200 From: Stefan Kerkmann Date: Mon, 17 Aug 2026 16:01:14 +0200 Subject: [PATCH v3 3/8] clocksource: allow re-init for same clock MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260817-feature-pbl-get-time-ns-v3-3-9874c1438855@pengutronix.de> References: <20260817-feature-pbl-get-time-ns-v3-0-9874c1438855@pengutronix.de> In-Reply-To: <20260817-feature-pbl-get-time-ns-v3-0-9874c1438855@pengutronix.de> To: Sascha Hauer , "open list:BAREBOX" Cc: Stefan Kerkmann X-Mailer: b4 0.15.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260817_070122_659774_15F7806E X-CRM114-Status: UNSURE ( 9.07 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: A clocksource might need to be re-initialized if fundamental parameter changes e.g. the clock frequency. With the change the init sequence which sets the global clocksource can be called unconditional [...] Content analysis details: (-1.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.0 DMARC_MISSING Missing DMARC policy 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-Rspamd-Action: no action X-Rspamd-Server: mx1 X-Stat-Signature: y17bf7adxkh3exjfqpucmznjg5cspkbf X-Spamd-Result: default: False [-7.71 / 15.00]; BAYES_HAM(-3.00)[99.99%]; DWL_DNSWL_MED(-2.00)[infradead.org:dkim]; KNOWN_LIST_ID(-1.00)[barebox.lists.infradead.org]; RCVD_DKIM_ARC_DNSWL_MED(-0.50)[]; RCVD_IN_DNSWL_MED(-0.40)[2a0a:edc0:0:1101:1d::54:received,2607:7c80:54:3::133:from]; MAILLIST(-0.20)[mailman]; R_SPF_ALLOW(-0.20)[+mx:c]; R_DKIM_ALLOW(-0.20)[lists.infradead.org:s=bombadil.20210309]; MIME_GOOD(-0.10)[text/plain]; RCVD_IN_DNSWL_LOW(-0.10)[2a0a:edc0:0:c01:1d::a2:received]; HAS_LIST_UNSUB(-0.01)[]; RCVD_TLS_LAST(0.00)[]; RECEIVED_HELO_LOCALHOST(0.00)[]; DMARC_NA(0.00)[pengutronix.de]; FORGED_SENDER(0.00)[s.kerkmann@pengutronix.de,barebox-bounces@lists.infradead.org]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FORWARDED(0.00)[barebox@lists.infradead.org]; TO_DN_ALL(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[lists.infradead.org:+]; FORGED_SENDER_FORWARDING(0.00)[]; FROM_NEQ_ENVFROM(0.00)[s.kerkmann@pengutronix.de,barebox-bounces@lists.infradead.org]; FROM_HAS_DN(0.00)[]; TAGGED_FROM(0.00)[lore=pengutronix.de]; RCVD_COUNT_FIVE(0.00)[5]; MID_RHS_MATCH_FROM(0.00)[]; NEURAL_HAM(-0.00)[-1.000]; ASN(0.00)[asn:7247, ipnet:2607:7c80:54::/48, country:US]; RCVD_VIA_SMTP_AUTH(0.00)[]; FORGED_SENDER_MAILLIST(0.00)[] X-Rspamd-Queue-Id: 6027F2021FD A clocksource might need to be re-initialized if fundamental parameter changes e.g. the clock frequency. With the change the init sequence which sets the global clocksource can be called unconditionally again for the same clock. Signed-off-by: Stefan Kerkmann --- common/clock.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/common/clock.c b/common/clock.c index 87109f3efc..fc770ac853 100644 --- a/common/clock.c +++ b/common/clock.c @@ -216,7 +216,8 @@ void clocksource_srand(void) int init_clock(struct clocksource *cs) { - if (current_clock && cs->priority <= current_clock->priority) + if (current_clock && cs != current_clock && + cs->priority <= current_clock->priority) return 0; if (cs->init) { -- 2.47.3