From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ching Huang Subject: [PATCH v2 2/3] scsi: arcmsr: Fix suspend/resume of ACB_ADAPTER_TYPE_B part 2 Date: Fri, 18 Jan 2019 10:58:51 +0800 Message-ID: <1547780331.4532.19.camel@Centos6.3-64> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: martin.petersen@oracle.com, James.Bottomley@HansenPartnership.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: dan.carpenter@oracle.com, hch@infradead.org, colin.king@canonical.com List-Id: linux-scsi@vger.kernel.org >>From Ching Huang For ACB_ADAPTER_TYPE_B controller, the read/write after hibernate and resume may got 'isr get an illegal ccb command' in log/messages sometimes. This patch fix it. Signed-off-by: Ching Huang --- diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 5736434..88053b1 100755 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -1113,7 +1113,11 @@ static int arcmsr_resume(struct pci_dev *pdev) switch (acb->adapter_type) { case ACB_ADAPTER_TYPE_B: { struct MessageUnit_B *reg = acb->pmuB; - reg->post_qbuffer[0] = 0; + uint32_t i; + for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) { + reg->post_qbuffer[i] = 0; + reg->done_qbuffer[i] = 0; + } reg->postq_index = 0; reg->doneq_index = 0; break;