From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 601CE3F8248 for ; Fri, 4 Sep 2026 04:37:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788496644; cv=none; b=j73LmpfKJJRI2wSIgr1YQXoOCrzRMMbNbY7wP54e8PSUpZPRnysuQAaQ5bS0vI9A8+XjgRA3thYMLXshrwbosNeXB/cDHhD8i/7VnfR29iKNuem+D86scf3yD2UpVF6RUD+fUBpMyCJF4G/EzVfU9raCfuOc63FBG0XWBpW3nhU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788496644; c=relaxed/simple; bh=uyK9CnBSHYL6Kclxo8tiwpQcsonP6tE/WmRqE4iTwls=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=i9i36WqrK2f3XJMucIcC9ygWcl40DI5l9cxSZd/zyBQlAL0Iyc56+kxfyfyLkxwEoggQ95LVMhQzuJIfEDX27KBxHAO+OaOdkIXStWq59Sq/VoiIj74Cukhehome/YbmpGgclJqXJfTZ4MPx5sGMLmR+AjuxnNDRUa7n4vNhAqI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=08SQB+oa; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="08SQB+oa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA8971F00A3D; Fri, 4 Sep 2026 04:37:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788496643; bh=PeaScOOwyiXTd5lyUaPrA3G8Y/2Ri3TUKFziF5ziNQE=; h=Subject:To:Cc:From:Date; b=08SQB+oapR0uTtO2foqhJ6kcbmNkAIFPF9t5ETMtjxBizHz6ZFG2AtpeKhTD9BGC0 BgH/I3F01dyAIeaqIycCwx9bnOkLdr41IpsWF7HK/uv4e2BQGYl0me8TknlDJxYTJt 5O0M1q9F/gJ7znaChIaPzWo60RKCDI/wCb/8J9SA= Subject: FAILED: patch "[PATCH] i3c: master: Do not treat master device as a duplicate target" failed to apply to 6.18-stable tree To: adrian.hunter@intel.com,Frank.Li@nxp.com,alexandre.belloni@bootlin.com,mukesh.savaliya@oss.qualcomm.com Cc: From: Date: Fri, 04 Sep 2026 06:37:10 +0200 Message-ID: <2026090410-unnoticed-twerp-c8c4@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.18-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.18.y git checkout FETCH_HEAD git cherry-pick -x 4dc1b3eeba7991905a5b5b8129ebea51be7d87b7 # git commit -s git send-email --to '' --in-reply-to '2026090410-unnoticed-twerp-c8c4@gregkh' --subject-prefix 'PATCH 6.18.y' 'HEAD^..' Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 4dc1b3eeba7991905a5b5b8129ebea51be7d87b7 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 7 Aug 2026 17:56:27 +0300 Subject: [PATCH] i3c: master: Do not treat master device as a duplicate target 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 Link: https://patch.msgid.link/20260807145638.168865-4-adrian.hunter@intel.com Signed-off-by: Alexandre Belloni 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; }