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 4CA28D41C38 for ; Thu, 11 Dec 2025 13:48:34 +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=zozPrz4Hrz6PGxacqrV0lTC7eEj9rNPkBm2+VbE+60s=; b=q2jq3LNNR6VLu0 cBtvvsnAqaOxbSqjim0kLddBbACaaPQrV2Ylzeo0NL1wlWvo7gVlw370+CVY/OxegGCqEJPkoTR6s ZhCu/K/RhPKsThoVdiUivF674rOGGxduzHpOD7p6b3BUygA4bhuK0/h3pg6hSIPBuUbIHOJTV6CmW z+BKknttUNC7iKjdGNRd9K/ENnYWSmNvL/MbIjYyBOqq4OZxYsZSWUM6laChoco31yfnwQ75iLi8R /0g6w0XpgBOELne/suwLaZGptlITHN+d1jcirqOKz2zhxJGxmVTKwyPze9pj33bx2mO5x0+R8KXy3 l8PmQCatRDQ5hBvchDeA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vTh22-0000000Gfdb-0HMl; Thu, 11 Dec 2025 13:48:34 +0000 Received: from mgamail.intel.com ([192.198.163.14]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vTh1z-0000000Gfc2-17U1 for linux-i3c@lists.infradead.org; Thu, 11 Dec 2025 13:48:32 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1765460911; x=1796996911; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=GQ9VUxxcNLYLk5WQbPYudNpp4lIHdf59wpBDbAHVsWg=; b=V1a5Yo3rdFKCrrB6IC5ZnVSsGrKgWlzsrJxhagc8fW3u6f0ITqaZ4oyp UdQda/TnnBbOQmPUkMUffE1uWb0OF16zQ32AX5o+i81G7OaorMncF30/h S2Ct/8kzKmEy3I6XCxQKcVuxfyG1nO0IscuKc+9q6JkM8YNxgwNVGj744 5jzyqLVqKPf1AoMX/m5OUCAAcih5eZohywilbOeK4hdd+WhUx06rsW4Qy VJB2jDl0Eoo/KoZhIr73FcbpqLQF59UamwaRQtyqmeOtqLrKsB9n6YYae jaQeqp6qjnuBOWBWf6iDaNE2MTJT31YJBYNewaCF56+bBxQekcyCuuneY w==; X-CSE-ConnectionGUID: 4m03BB7YTIiv8IqGqMDEDw== X-CSE-MsgGUID: QjEn3vWrTyCVN8lKoV3ZbQ== X-IronPort-AV: E=McAfee;i="6800,10657,11639"; a="67481850" X-IronPort-AV: E=Sophos;i="6.21,141,1763452800"; d="scan'208";a="67481850" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2025 05:48:31 -0800 X-CSE-ConnectionGUID: huZwLkkwR1GAfzcnEPz5TQ== X-CSE-MsgGUID: oEiLOgaST2Kpn1vfZ6BKlg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,141,1763452800"; d="scan'208";a="220171664" Received: from egrumbac-mobl6.ger.corp.intel.com (HELO ahunter6-desk) ([10.245.244.164]) by fmviesa002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2025 05:48:29 -0800 From: Adrian Hunter To: alexandre.belloni@bootlin.com Cc: Frank.Li@nxp.com, linux-i3c@lists.infradead.org Subject: [PATCH V2 02/10] i3c: mipi-i3c-hci: Stop reading Extended Capabilities if capability ID is 0 Date: Thu, 11 Dec 2025 15:48:01 +0200 Message-ID: <20251211134809.75872-3-adrian.hunter@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251211134809.75872-1-adrian.hunter@intel.com> References: <20251211134809.75872-1-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-20251211_054831_319345_8CFF0AC9 X-CRM114-Status: UNSURE ( 8.93 ) 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 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