From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (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 DE7852FFF81 for ; Thu, 9 Apr 2026 20:15:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775765716; cv=none; b=WHnho8Qy+yfbylJhecYjz7f/nUONqjomuUb5zPumaTkoJqYrD9qFI8VUQ+FZoGESMC82HPsEpuhcL1yR69n0t/K9+f7ri0HQaOti+zJCgEeDcpSxt7al2LLzFb6vP/G9Ov5Voj3ZhC1ethbUfmGfuQz4myxtVIY6MbX1JT3tXvs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775765716; c=relaxed/simple; bh=fpdf0NutjxchdfIW7hKso3fPqRMTWyLOg7NcgpS9YfI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Nh6RCULL2Ffj6mjBEWdhrdOWXmh3AfT4s5Fi9t7flhewRjb4QmCd6skTRuG1TJevcdrwVY2kbZnuhenb01kOaRQhsZ4p2kspgJUtpiC1pd/lepOCnrlS+yrHOgAWqpu+OPe4snb4RyUD02DKrvpQh4QVGhGAkwCRhRMMVHDBGxw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=ZWxkrBR6; arc=none smtp.client-ip=192.198.163.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="ZWxkrBR6" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1775765715; x=1807301715; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=fpdf0NutjxchdfIW7hKso3fPqRMTWyLOg7NcgpS9YfI=; b=ZWxkrBR6OVFGUBUpyS+tTLZwr7QsBv8PiO94Upmx0Ov/H5xAHVeTSgZ5 vQX7Z2QipiPWSObjpCkxMIxMwaeEI2nxtthBpi14RJzM/rVvoQ92IWGpo so3XjtrvxFyUumdLbyVSCe7n5fIvVeQ1UzX7KEtUipeywHREum79c7EtO DvjpvT3mqg/gggI3/ravd+m+PYQGHkSANMivehTsIYMmg1LlyiFRg1zEz cXuTfiFmzCj1sZW/mdQWx2sqNpoAXbsth4xs9Ghmz4Ee09Kn4hHC81Xsg 9j868+z6MkGmmDBb/6jwfew7RsZQfRX6q8MFbsEEskOQRIRlYsQZafHnM A==; X-CSE-ConnectionGUID: pvJlyprmTA2MZXQQHrsGmw== X-CSE-MsgGUID: DZbWXx4vSS+xcHkOzWQceQ== X-IronPort-AV: E=McAfee;i="6800,10657,11754"; a="87408757" X-IronPort-AV: E=Sophos;i="6.23,170,1770624000"; d="scan'208";a="87408757" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Apr 2026 13:15:10 -0700 X-CSE-ConnectionGUID: PWuDbKfFT8KzlOoFPv3hAQ== X-CSE-MsgGUID: 6ko0bXVLQqKnScJMsMb0TA== X-ExtLoop1: 1 Received: from dalessan-mobl3.ger.corp.intel.com (HELO kekkonen.fi.intel.com) ([10.245.244.29]) by fmviesa003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Apr 2026 13:15:03 -0700 Received: from punajuuri.localdomain (unknown [192.168.240.130]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 534D8122014; Thu, 09 Apr 2026 23:15:03 +0300 (EEST) Received: from sailus by punajuuri.localdomain with local (Exim 4.98.2) (envelope-from ) id 1wAvmI-000000045ps-3LYT; Thu, 09 Apr 2026 23:15:02 +0300 Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo From: Sakari Ailus To: linux-media@vger.kernel.org Cc: hans@jjverkuil.nl, laurent.pinchart@ideasonboard.com, Prabhakar , Kate Hsuan , Dave Stevenson , Tommaso Merciai , Benjamin Mugnier , Sylvain Petinot , Christophe JAILLET , Julien Massot , Naushir Patuck , Stefan Klug , Mirela Rabulea , =?UTF-8?q?Andr=C3=A9=20Apitzsch?= , Heimir Thor Sverrisson , Kieran Bingham , Mehdi Djait , Ricardo Ribalda Delgado , Hans de Goede , Jacopo Mondi , Tomi Valkeinen , David Plowman , "Yu, Ong Hock" , "Ng, Khai Wen" , Jai Luthra , Rishikesh Donadkar Subject: [PATCH v12 75/86] media: ipu6: Add lockdep checks for CSI-2 streaming enable and disable Date: Thu, 9 Apr 2026 23:14:50 +0300 Message-ID: <20260409201501.975242-76-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260409201501.975242-1-sakari.ailus@linux.intel.com> References: <20260409201501.975242-1-sakari.ailus@linux.intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The callbacks for enabling and disabling streams access data serialised using the isys stream_mutex; add lockdep checks for this. Signed-off-by: Sakari Ailus --- drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c b/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c index 8deafe38be5d..f37e25063d6d 100644 --- a/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c +++ b/drivers/media/pci/intel/ipu6/ipu6-isys-csi2.c @@ -399,6 +399,8 @@ static int ipu6_isys_csi2_enable_streams(struct v4l2_subdev *sd, u64 sink_streams; int ret; + lockdep_assert_held(&csi2->isys->stream_mutex); + list_add(&av->csi2_entry, &csi2->av_head); if (!ipu6_isys_csi2_streaming_change(asd, state, pad, true)) @@ -457,6 +459,8 @@ static int ipu6_isys_csi2_disable_streams(struct v4l2_subdev *sd, struct v4l2_subdev *remote_sd; u64 sink_streams; + lockdep_assert_held(&csi2->isys->stream_mutex); + if (!ipu6_isys_csi2_streaming_change(asd, state, pad, false)) goto out_del_csi2_entry; -- 2.47.3