From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5B6F0333439; Thu, 6 Aug 2026 13:19:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786022371; cv=none; b=d1paPT22FKzCV6X2AdD3tYnFYWGzClKUUTtvLmJWBlYWuSMGD0HicEedX4R7GZvXxPNMmxrGxTEbSRE+q05jgcG7ANsS78RYd9PuBnhavD7NNr51FLCFs1k0jHBdNfDDlTEnZiCBOhoGAb5JGJZl93VCvLDVsyfpc0xHUSEQLxQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786022371; c=relaxed/simple; bh=Mggui0CLcJI+CXEJWoxkotbs7prYgBI6zApoIT2r0N4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tpMWWAJvHjHvJ/cvHQjiz2buPa9ld8XS3mp3DK6Ymh6ngXSw9XwOvw+uvIOBQpxnIdb/E+wAZXq5qDTzalQGwOaKDARxRUydevZW2hUGb+DXhFBSy2icVEoi+ISAv2jHx8iMpxcCqU3a3PGh85FkdQtRNpQUCgkIFd83y37HGAc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=EhOa7L5y; arc=none smtp.client-ip=192.198.163.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="EhOa7L5y" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1786022367; x=1817558367; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Mggui0CLcJI+CXEJWoxkotbs7prYgBI6zApoIT2r0N4=; b=EhOa7L5yu924GgvduD0/WUjNLJYMngg8CZHnXtN8VCFUrRShuuEX5VRa tQK2Cj6c9xaYmOWpFRZBL18jkbThj1BP9++kXZ+YWROKrYdGWqT+d9RhW cOy8nyk7OyyAR3Yks3qAdME/jyqlDuQ2FXTmKWy1MrglkmuEPlJAUcvVG 4l5LFifDVKScVocDSf95reA4Wdbscn8nz/mXj/ugYBMAUrrJrD+s3Aoy8 RZX+FEFTY5rgEvZosEEDzBDNt2WrLZ1K2mpV19vEcfu6xblkYsRA64Jit L/in7qyP1rLrnSqO8qdm2HyCHMS36X7u3ebEEKQDmBmy4P6KtO98+IRZz A==; X-CSE-ConnectionGUID: +UwBV44lQcShBvBycxFQ2A== X-CSE-MsgGUID: Qw4DSP6LQiyYke8NA35rNQ== X-IronPort-AV: E=McAfee;i="6800,10657,11867"; a="74149544" X-IronPort-AV: E=Sophos;i="6.25,208,1779174000"; d="scan'208";a="74149544" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2026 06:19:17 -0700 X-CSE-ConnectionGUID: DIQmaE+GQOuhRgUD+m1RbQ== X-CSE-MsgGUID: o+XS/H4RSC2+lGKUsYIoxQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,208,1779174000"; d="scan'208";a="260338101" Received: from mkosciow-mobl1.ger.corp.intel.com (HELO ahunter6-desk) ([10.245.244.200]) by orviesa006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2026 06:19:14 -0700 From: Adrian Hunter To: alexandre.belloni@bootlin.com Cc: Frank.Li@nxp.com, akhilrajeev@nvidia.com, mukesh.savaliya@oss.qualcomm.com, rafael@kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH V4 03/14] i3c: master: Do not treat master device as a duplicate target Date: Thu, 6 Aug 2026 16:18:46 +0300 Message-ID: <20260806131857.119830-4-adrian.hunter@intel.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260806131857.119830-1-adrian.hunter@intel.com> References: <20260806131857.119830-1-adrian.hunter@intel.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 Content-Transfer-Encoding: 8bit i3c_master_search_i3c_dev_duplicate() searches the bus for another I3C device with the same PID as the reference device. The search can match master->this, causing the controller itself to be returned as a duplicate. Since the controller is not a target device, it cannot be a duplicate of one. Exclude master->this from matching so that the function only returns real duplicate target devices. Fixes: 3a379bbcea0a ("i3c: Add core I3C infrastructure") Cc: stable@vger.kernel.org Signed-off-by: Adrian Hunter Reviewed-by: Frank Li Acked-by: Mukesh Savaliya --- Changes in V4: Added Frank's Rev-by and Mukesh's Acked-by tags Changes in V3: New patch drivers/i3c/master.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index c7bb52b71d88..abb582645a2e 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -2545,7 +2545,8 @@ i3c_master_search_i3c_dev_duplicate(struct i3c_dev_desc *refdev) i3c_bus_for_each_i3cdev(&master->bus, i3cdev) { if (i3cdev != refdev && i3cdev->info.pid && - i3cdev->info.pid == refdev->info.pid) + i3cdev->info.pid == refdev->info.pid && + i3cdev != master->this) return i3cdev; } -- 2.53.0