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 X-Spam-Level: X-Spam-Status: No, score=-14.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93683C07E96 for ; Sun, 11 Jul 2021 11:08:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7BFF861206 for ; Sun, 11 Jul 2021 11:08:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232087AbhGKLLV (ORCPT ); Sun, 11 Jul 2021 07:11:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:43628 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231197AbhGKLLV (ORCPT ); Sun, 11 Jul 2021 07:11:21 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id EE998611ED; Sun, 11 Jul 2021 11:08:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626001714; bh=EFbTgLlyPAaw/OUEbY+9GdNsQgaX0C/Ebg4UB3f/0DQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hCX9w1t/Hrmk8vVt3wisstZLTrB2bXqk3/euu4mpCDJxaFc7GeK14H2Oy9FDjctb5 sG1d6GfHP5hJ7rR40IsqocQq7FfQAZpjwc6Me481jXanekvW0Uz/lrA4NYqjz/0Qsb pLlcsxFyIjT2GgPCUn/0YMInQLWA6bGQqwG8ZuIk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, stable@vger.kernel.org Cc: lwn@lwn.net, jslaby@suse.cz, Greg Kroah-Hartman Subject: Re: Linux 4.4.275 Date: Sun, 11 Jul 2021 13:08:24 +0200 Message-Id: <16260017029626@kroah.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <1626001702192152@kroah.com> References: <1626001702192152@kroah.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org diff --git a/Makefile b/Makefile index 3d1fc6eb95ec..dbf282146b66 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 4 PATCHLEVEL = 4 -SUBLEVEL = 274 +SUBLEVEL = 275 EXTRAVERSION = NAME = Blurry Fish Butt diff --git a/arch/arm/probes/kprobes/core.c b/arch/arm/probes/kprobes/core.c index 3eb018fa1a1f..c3362ddd6c4c 100644 --- a/arch/arm/probes/kprobes/core.c +++ b/arch/arm/probes/kprobes/core.c @@ -270,6 +270,7 @@ void __kprobes kprobe_handler(struct pt_regs *regs) switch (kcb->kprobe_status) { case KPROBE_HIT_ACTIVE: case KPROBE_HIT_SSDONE: + case KPROBE_HIT_SS: /* A pre- or post-handler probe got us here. */ kprobes_inc_nmissed_count(p); save_previous_kprobe(kcb); @@ -278,6 +279,11 @@ void __kprobes kprobe_handler(struct pt_regs *regs) singlestep(p, regs, kcb); restore_previous_kprobe(kcb); break; + case KPROBE_REENTER: + /* A nested probe was hit in FIQ, it is a BUG */ + pr_warn("Unrecoverable kprobe detected at %p.\n", + p->addr); + /* fall through */ default: /* impossible cases */ BUG(); diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 78f520d05de9..58c310930bf2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -458,7 +458,7 @@ nouveau_bo_sync_for_device(struct nouveau_bo *nvbo) struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; int i; - if (!ttm_dma) + if (!ttm_dma || !ttm_dma->dma_address) return; /* Don't waste time looping if the object is coherent */ @@ -478,7 +478,7 @@ nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo) struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; int i; - if (!ttm_dma) + if (!ttm_dma || !ttm_dma->dma_address) return; /* Don't waste time looping if the object is coherent */ diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 7dd4d9ded249..6e31cedf0b6c 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -216,6 +216,8 @@ static unsigned int sr_get_events(struct scsi_device *sdev) return DISK_EVENT_EJECT_REQUEST; else if (med->media_event_code == 2) return DISK_EVENT_MEDIA_CHANGE; + else if (med->media_event_code == 3) + return DISK_EVENT_EJECT_REQUEST; return 0; } diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index 56bf952de411..f27118923390 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -533,6 +533,9 @@ static void xen_irq_lateeoi_locked(struct irq_info *info, bool spurious) } info->eoi_time = 0; + + /* is_active hasn't been reset yet, do it now. */ + smp_store_release(&info->is_active, 0); do_unmask(info, EVT_MASK_REASON_EOI_PENDING); } @@ -1777,10 +1780,22 @@ static void lateeoi_ack_dynirq(struct irq_data *data) struct irq_info *info = info_for_irq(data->irq); evtchn_port_t evtchn = info ? info->evtchn : 0; - if (VALID_EVTCHN(evtchn)) { - do_mask(info, EVT_MASK_REASON_EOI_PENDING); - ack_dynirq(data); - } + if (!VALID_EVTCHN(evtchn)) + return; + + do_mask(info, EVT_MASK_REASON_EOI_PENDING); + + if (unlikely(irqd_is_setaffinity_pending(data)) && + likely(!irqd_irq_disabled(data))) { + do_mask(info, EVT_MASK_REASON_TEMPORARY); + + clear_evtchn(evtchn); + + irq_move_masked_irq(data); + + do_unmask(info, EVT_MASK_REASON_TEMPORARY); + } else + clear_evtchn(evtchn); } static void lateeoi_mask_ack_dynirq(struct irq_data *data)