Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757190AbbFPI61 (ORCPT ); Tue, 16 Jun 2015 04:58:27 -0400 Received: from mail.kernel.org ([198.145.29.136]:57149 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932864AbbFPItb (ORCPT ); Tue, 16 Jun 2015 04:49:31 -0400 From: lizf@kernel.org To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Tomas Henzl , Don Brace , Christoph Hellwig , Vinson Lee , Zefan Li Subject: [PATCH 3.4 156/172] hpsa: turn off interrupts when kdump starts Date: Tue, 16 Jun 2015 16:36:50 +0800 Message-Id: <1434443826-4929-156-git-send-email-lizf@kernel.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434443587-4599-1-git-send-email-lizf@kernel.org> References: <1434443587-4599-1-git-send-email-lizf@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2077 Lines: 65 From: Tomas Henzl 3.4.108-rc1 review patch. If anyone has any objections, please let me know. ------------------ commit 3b747298786355c6934b0892fc9ae4ca44105192 upstream. Sometimes when the card is restarted it may cause - "irq 16: nobody cared (try booting with the "irqpoll" option)" that is likely caused so, that the card, after the hard reset finishes, pulls on the irq. Disabling the ints before or after the hpsa_kdump_hard_reset_controller fixes it. At this point we can't know in which state the card is, so using SA5_INTR_OFF + SA5_REPLY_INTR_MASK_OFFSET defines directly, instead of the function the drivers provides, seems to be apropriate. Reviewed-by: Scott Teel Signed-off-by: Don Brace Signed-off-by: Christoph Hellwig Cc: Vinson Lee [lizf: Backported to 3.4: adjust context] Signed-off-by: Zefan Li --- drivers/scsi/hpsa.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index c45c6a3..cdff47e 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4055,6 +4055,7 @@ static void __devinit hpsa_hba_inquiry(struct ctlr_info *h) static __devinit int hpsa_init_reset_devices(struct pci_dev *pdev) { int rc, i; + void __iomem *vaddr; if (!reset_devices) return 0; @@ -4076,6 +4077,15 @@ static __devinit int hpsa_init_reset_devices(struct pci_dev *pdev) return -ENODEV; } pci_set_master(pdev); + + vaddr = pci_ioremap_bar(pdev, 0); + if (vaddr == NULL) { + rc = -ENOMEM; + goto out_disable; + } + writel(SA5_INTR_OFF, vaddr + SA5_REPLY_INTR_MASK_OFFSET); + iounmap(vaddr); + /* Reset the controller with a PCI power-cycle or via doorbell */ rc = hpsa_kdump_hard_reset_controller(pdev); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/