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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 47781D609D3 for ; Tue, 16 Dec 2025 16:57:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=TULkMVpFwhtbocYXP/8Aesc9FrWy5XX4apM/o9V4d/k=; b=KMd73QT7REa/Oo 0Cu9IgwUizmFtCgFQ0eYqSlW760x7/INFLWIfp5DZ3vSxfRFK9S28kvckZ4zrTCo5/DXDEiGKzpXP +ZJPJcsw2wIGRo8DxpocJDgJq8SSiMaDt2jgxG2bL+hTzYEYBFGDeQHJh5aEY2ngcVAG0fikR7xbv HkT2iT6gDP5PdzTIq0VIhqUt+hvVwOUhrrEwMS9raCPjFXhI8HSWIOjLFo9RLO1kJFs73/iRegC7W fWSu4Tg/Jv1gkkaLOKcMhcrKXgqMnRqcufHJn30F9grEWXa9aBRaWHd0ZpgFluCmA+KiiijHXsflU FtlFxjsikHEuLVDFG+fw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vVYM8-00000005ZM4-3IPm; Tue, 16 Dec 2025 16:57:01 +0000 Received: from mgamail.intel.com ([192.198.163.11]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vVYM5-00000005ZKP-3v3S for linux-i3c@lists.infradead.org; Tue, 16 Dec 2025 16:56:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1765904218; x=1797440218; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Kx2gjfdBSXcsAjI2/AJ9gzuhXv3okZaERHplREx1W/k=; b=YVw2c2yNBKvw9yO/39NCWA3VHwBcNdSiswhlc2AnvA+0YJSuR1rn+MhC ekte/855+IXl3/vuL+OqCKgRXjXq1hfUsy+UXh5YeHWNnSV8BLmovjL0N OHRGmfLfgXoM7CwfPVwMy/bTY/g0oEETmwIlxErx2TMFKjc84RBRqfeqk 9ECwfL5xk/4IBKE6uOSLdYm3p1S4iGfzxQWhkCtVtO6lBwFxWz01KEfvg APJ/Oa5278u66chh5AcYZJ5k6S6S34pkht442l1BCnyLrZEI6GByfXgY9 TYsw/Bm3yvyVLxBDrkBTnq+qXdQacSGqPxl+DnwFup2mXVdbQ8hpapuUj w==; X-CSE-ConnectionGUID: Xy7vEsafSS6FhkofaB5qAg== X-CSE-MsgGUID: wi5T3HQoQu+9m6vSCwUkWQ== X-IronPort-AV: E=McAfee;i="6800,10657,11644"; a="78466728" X-IronPort-AV: E=Sophos;i="6.21,153,1763452800"; d="scan'208";a="78466728" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Dec 2025 08:56:56 -0800 X-CSE-ConnectionGUID: jQSp7SXTSMOy4syuw8tXEQ== X-CSE-MsgGUID: 7uvBJwoKSJqPvj+YA+jcKQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,153,1763452800"; d="scan'208";a="197817591" Received: from rvuia-mobl.ger.corp.intel.com (HELO ahunter6-desk) ([10.245.244.195]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Dec 2025 08:56:54 -0800 From: Adrian Hunter To: alexandre.belloni@bootlin.com Cc: Frank.Li@nxp.com, linux-i3c@lists.infradead.org Subject: [PATCH V3 02/11] i3c: mipi-i3c-hci: Stop reading Extended Capabilities if capability ID is 0 Date: Tue, 16 Dec 2025 18:56:33 +0200 Message-ID: <20251216165642.164583-3-adrian.hunter@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251216165642.164583-1-adrian.hunter@intel.com> References: <20251216165642.164583-1-adrian.hunter@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy, Registered Address: c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo, Business Identity Code: 0357606 - 4, Domiciled in Helsinki X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251216_085658_275176_6B849915 X-CRM114-Status: UNSURE ( 8.84 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org Extended Capability ID value 0 is special. It signifies the end of the list. Stop reading Extended Capabilities if capability ID is 0. Signed-off-by: Adrian Hunter Reviewed-by: Frank Li --- Changes in V3: None Changes in V2: Add Frank's Rev'd-by drivers/i3c/master/mipi-i3c-hci/ext_caps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i3c/master/mipi-i3c-hci/ext_caps.c b/drivers/i3c/master/mipi-i3c-hci/ext_caps.c index 40939af0b0e3..024bccf23fd0 100644 --- a/drivers/i3c/master/mipi-i3c-hci/ext_caps.c +++ b/drivers/i3c/master/mipi-i3c-hci/ext_caps.c @@ -271,7 +271,7 @@ int i3c_hci_parse_ext_caps(struct i3c_hci *hci) cap_length = FIELD_GET(CAP_HEADER_LENGTH, cap_header); dev_dbg(&hci->master.dev, "id=0x%02x length=%d", cap_id, cap_length); - if (!cap_length) + if (!cap_id || !cap_length) break; if (curr_cap + cap_length * 4 >= end) { dev_err(&hci->master.dev, -- 2.51.0 -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c