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[23.128.96.18]) by mx.google.com with ESMTP id t133si7514642pgc.287.2022.01.21.11.03.44; Fri, 21 Jan 2022 11:03:56 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@cerno.tech header.s=fm1 header.b=VGxZdy+d; dkim=pass header.i=@messagingengine.com header.s=fm1 header.b=gQLdUDHZ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=cerno.tech Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352862AbiASJLM (ORCPT + 99 others); Wed, 19 Jan 2022 04:11:12 -0500 Received: from wout4-smtp.messagingengine.com ([64.147.123.20]:39863 "EHLO wout4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352858AbiASJLJ (ORCPT ); Wed, 19 Jan 2022 04:11:09 -0500 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.west.internal (Postfix) with ESMTP id E2B173202112; Wed, 19 Jan 2022 04:11:08 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Wed, 19 Jan 2022 04:11:09 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; s=fm1; bh= F8MxcNmLbvsLd8ilfryFjFcJsELc7SyqXZ3lyhwudlw=; b=VGxZdy+d2f+pXpaw 4Lwmkhs9i43PfMrUvD3H5d90vl1wVROdW3mPM3ZVUiX0uwFSW3j34Sx5T2DgAU17 NmcDpMOGZntPmZrAeYj1v0W8ihIj3PG+/orvdahIZXjrDMK/AahsSpNkagxM4bNF bAxDDiFvUaPmuvydPnC2mAdSWjWZBVAN+OwrPHBX/NOf11aZfD1MevUNLnKxlrFC yLYhSlGtJRrk+axOUZM5YMLZkwPwsibIpoBPtp0Hx3Od8fasTC2kxGsFIDbkThfX XsIgVFeFr5/7IKRRS4Dh0WeVwB8PiDaGWX6iIRgQiDGH4bAmq6NuM9XfnYUNDEh5 VjVhoQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; bh=F8MxcNmLbvsLd8ilfryFjFcJsELc7SyqXZ3lyhwud lw=; b=gQLdUDHZMidEsvUHpsZF1/Pw5tOEY/q9o9WLcuaRqjpz8YjeKATtl/Ktw BIIEVPbKBfH0TlS25AjEU0dLO1tje6dy3calhGHEBZ297g6FJBEzfuJXSRfdbnxr UTB17I6kngqxZ/f/IUZpVNT2NpiHTqPeyhTEWoTAMr0Kzth+Twgqn7y3Pae/WkXK vuNPIyM3hhTFk/l2kZjw5XN+6P9pHvvxLpqZ/7B5QBraXsx54f8Mto/K2dfpr6W9 N8OfXaBUM6Bzb7aMoPMwfWfJwq4UihRXbvKLjA/0FtS03FWDsUjAxO8LXjPderT6 R8dFVRMy601sRQ5BxECZ2uc/YQVjA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvvddrudehucetufdoteggodetrfdotffvucfrrh hofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgenuceurghi lhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhggtgfgsehtkeertdertd ejnecuhfhrohhmpeforgigihhmvgcutfhiphgrrhguuceomhgrgihimhgvsegtvghrnhho rdhtvggthheqnecuggftrfgrthhtvghrnhepjeeugfegkeffgfeuvedtvddufffhjeffje ejvddvudduteehhfefhfefgeeikeeknecuvehluhhsthgvrhfuihiivgeptdenucfrrghr rghmpehmrghilhhfrhhomhepmhgrgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 19 Jan 2022 04:11:07 -0500 (EST) From: Maxime Ripard To: dri-devel@lists.freedesktop.org, Padmanabha Srinivasaiah , mripard@kernel.org, linux-kernel@vger.kernel.org, daniel@ffwll.ch, airlied@linux.ie Cc: Maxime Ripard , emma@anholt.net, linux-rpi-kernel@lists.infradead.org Subject: Re: (subset) [PATCH] drm/vc4: Fix deadlock on DSI device attach error Date: Wed, 19 Jan 2022 10:11:05 +0100 Message-Id: <164258346063.31836.9424358467323476627.b4-ty@cerno.tech> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220118005127.29015-1-treasure4paddy@gmail.com> References: <20220118005127.29015-1-treasure4paddy@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 18 Jan 2022 01:51:26 +0100, Padmanabha Srinivasaiah wrote: > DSI device attach to DSI host will be done with host device's lock > held. > > Un-registering host in "device attach" error path (ex: probe retry) > will result in deadlock with below call trace and non operational > DSI display. > > [...] Applied to drm/drm-misc (drm-misc-next-fixes). Thanks! Maxime