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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7CB8C19F2B for ; Thu, 4 Aug 2022 07:58:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239345AbiHDH6j (ORCPT ); Thu, 4 Aug 2022 03:58:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46336 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230354AbiHDH6f (ORCPT ); Thu, 4 Aug 2022 03:58:35 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1AC5213E14 for ; Thu, 4 Aug 2022 00:58:35 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id B16443745A; Thu, 4 Aug 2022 07:58:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1659599913; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=WsPHXUyR5svouL2wdPIh4vTdx2ko6UbWtKcIEYKt+Bg=; b=hJul8wcNtwKy5log79W9x8J/1P3jd2Bas9ZJvMywg10BumVT5TCkDuk0h2SQHuPdAJAvNO 5oT4C0B8MaCNh/mlIztLHECfWKiuXVDoyRLaKmTarqrmyTwC41ZyXxgi1Qj3J1f7dSFaOE LHcg58SGFd85hDgvFTZcCZxUTQhxlGk= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1659599913; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=WsPHXUyR5svouL2wdPIh4vTdx2ko6UbWtKcIEYKt+Bg=; b=0cwHv9Gczc7T10d56RWREKwdS6Bgev2S8czj41iT2ObiarjW8XZq+ygnhgiPNPawdjAR2E iYCSdv8L4MBohEBQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 8AB1A13AE1; Thu, 4 Aug 2022 07:58:33 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id JOULISl862IlJAAAMHmgww (envelope-from ); Thu, 04 Aug 2022 07:58:33 +0000 From: Takashi Iwai To: dri-devel@lists.freedesktop.org Cc: Dave Airlie , Sean Paul , Thomas Zimmermann , linux-kernel@vger.kernel.org Subject: [PATCH 0/4] drm/udl: Fix stray URBs and cleanup Date: Thu, 4 Aug 2022 09:58:22 +0200 Message-Id: <20220804075826.27036-1-tiwai@suse.de> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, this is a series of fixes for UDL driver to address the leftover URBs at suspend/resume. It begins with the simplification of FIFO control code with the standard wait queue, followed by the handling of pending URBs, and replace BUG_ON() with WARN_ON() as a cleanup. Takashi === Takashi Iwai (4): drm/udl: Replace semaphore with a simple wait queue drm/udl: Sync pending URBs at suspend / disconnect drm/udl: Kill pending URBs at suspend and disconnect drm/udl: Replace BUG_ON() with WARN_ON() drivers/gpu/drm/udl/udl_drv.h | 14 +++- drivers/gpu/drm/udl/udl_main.c | 125 ++++++++++++++--------------- drivers/gpu/drm/udl/udl_modeset.c | 4 + drivers/gpu/drm/udl/udl_transfer.c | 3 +- 4 files changed, 79 insertions(+), 67 deletions(-) -- 2.35.3