From 048a864e533039cc950b716e774c2c09af8fa1dd Mon Sep 17 00:00:00 2001 From: zhong jiang Date: Tue, 18 Sep 2018 23:54:41 +0800 Subject: scsi: hpsa: Use vmemdup_user to replace the open code vmemdup_user is better than duplicating its implementation, So just replace the open code. The issue is detected with the help of Coccinelle. Tested-by: Don Brace Acked-by: Don Brace Signed-off-by: zhong jiang Signed-off-by: Martin K. Petersen --- drivers/scsi/hpsa.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'drivers/scsi/hpsa.c') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 58bb70b886d7..666ba09e5f42 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -6381,13 +6381,9 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) return -EINVAL; if (!capable(CAP_SYS_RAWIO)) return -EPERM; - ioc = kmalloc(sizeof(*ioc), GFP_KERNEL); - if (!ioc) { - status = -ENOMEM; - goto cleanup1; - } - if (copy_from_user(ioc, argp, sizeof(*ioc))) { - status = -EFAULT; + ioc = vmemdup_user(argp, sizeof(*ioc)); + if (IS_ERR(ioc)) { + status = PTR_ERR(ioc); goto cleanup1; } if ((ioc->buf_size < 1) && @@ -6505,7 +6501,7 @@ cleanup1: kfree(buff); } kfree(buff_size); - kfree(ioc); + kvfree(ioc); return status; } -- cgit From 8bc8f47ea3964ef141e91ffff912538a66a55d5f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 10 Oct 2018 18:56:15 +0200 Subject: scsi: hpsa: switch to generic DMA API Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig Tested-by: Don Brace Acked-by: Don Brace Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/hpsa.c | 136 ++++++++++++++++++++++++++-------------------------- 1 file changed, 69 insertions(+), 67 deletions(-) (limited to 'drivers/scsi/hpsa.c') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 666ba09e5f42..758ffd6419b4 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -2240,8 +2240,8 @@ static int hpsa_map_ioaccel2_sg_chain_block(struct ctlr_info *h, chain_block = h->ioaccel2_cmd_sg_list[c->cmdindex]; chain_size = le32_to_cpu(cp->sg[0].length); - temp64 = pci_map_single(h->pdev, chain_block, chain_size, - PCI_DMA_TODEVICE); + temp64 = dma_map_single(&h->pdev->dev, chain_block, chain_size, + DMA_TO_DEVICE); if (dma_mapping_error(&h->pdev->dev, temp64)) { /* prevent subsequent unmapping */ cp->sg->address = 0; @@ -2261,7 +2261,7 @@ static void hpsa_unmap_ioaccel2_sg_chain_block(struct ctlr_info *h, chain_sg = cp->sg; temp64 = le64_to_cpu(chain_sg->address); chain_size = le32_to_cpu(cp->sg[0].length); - pci_unmap_single(h->pdev, temp64, chain_size, PCI_DMA_TODEVICE); + dma_unmap_single(&h->pdev->dev, temp64, chain_size, DMA_TO_DEVICE); } static int hpsa_map_sg_chain_block(struct ctlr_info *h, @@ -2277,8 +2277,8 @@ static int hpsa_map_sg_chain_block(struct ctlr_info *h, chain_len = sizeof(*chain_sg) * (le16_to_cpu(c->Header.SGTotal) - h->max_cmd_sg_entries); chain_sg->Len = cpu_to_le32(chain_len); - temp64 = pci_map_single(h->pdev, chain_block, chain_len, - PCI_DMA_TODEVICE); + temp64 = dma_map_single(&h->pdev->dev, chain_block, chain_len, + DMA_TO_DEVICE); if (dma_mapping_error(&h->pdev->dev, temp64)) { /* prevent subsequent unmapping */ chain_sg->Addr = cpu_to_le64(0); @@ -2297,8 +2297,8 @@ static void hpsa_unmap_sg_chain_block(struct ctlr_info *h, return; chain_sg = &c->SG[h->max_cmd_sg_entries - 1]; - pci_unmap_single(h->pdev, le64_to_cpu(chain_sg->Addr), - le32_to_cpu(chain_sg->Len), PCI_DMA_TODEVICE); + dma_unmap_single(&h->pdev->dev, le64_to_cpu(chain_sg->Addr), + le32_to_cpu(chain_sg->Len), DMA_TO_DEVICE); } @@ -2759,13 +2759,13 @@ static void complete_scsi_command(struct CommandList *cp) return hpsa_cmd_free_and_done(h, cp, cmd); } -static void hpsa_pci_unmap(struct pci_dev *pdev, - struct CommandList *c, int sg_used, int data_direction) +static void hpsa_pci_unmap(struct pci_dev *pdev, struct CommandList *c, + int sg_used, enum dma_data_direction data_direction) { int i; for (i = 0; i < sg_used; i++) - pci_unmap_single(pdev, (dma_addr_t) le64_to_cpu(c->SG[i].Addr), + dma_unmap_single(&pdev->dev, le64_to_cpu(c->SG[i].Addr), le32_to_cpu(c->SG[i].Len), data_direction); } @@ -2774,17 +2774,17 @@ static int hpsa_map_one(struct pci_dev *pdev, struct CommandList *cp, unsigned char *buf, size_t buflen, - int data_direction) + enum dma_data_direction data_direction) { u64 addr64; - if (buflen == 0 || data_direction == PCI_DMA_NONE) { + if (buflen == 0 || data_direction == DMA_NONE) { cp->Header.SGList = 0; cp->Header.SGTotal = cpu_to_le16(0); return 0; } - addr64 = pci_map_single(pdev, buf, buflen, data_direction); + addr64 = dma_map_single(&pdev->dev, buf, buflen, data_direction); if (dma_mapping_error(&pdev->dev, addr64)) { /* Prevent subsequent unmap of something never mapped */ cp->Header.SGList = 0; @@ -2845,7 +2845,8 @@ static u32 lockup_detected(struct ctlr_info *h) #define MAX_DRIVER_CMD_RETRIES 25 static int hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h, - struct CommandList *c, int data_direction, unsigned long timeout_msecs) + struct CommandList *c, enum dma_data_direction data_direction, + unsigned long timeout_msecs) { int backoff_time = 10, retry_count = 0; int rc; @@ -2969,8 +2970,8 @@ static int hpsa_do_receive_diagnostic(struct ctlr_info *h, u8 *scsi3addr, rc = -1; goto out; } - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, + NO_TIMEOUT); if (rc) goto out; ei = c->err_info; @@ -3022,8 +3023,8 @@ static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr, rc = -1; goto out; } - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, + NO_TIMEOUT); if (rc) goto out; ei = c->err_info; @@ -3306,8 +3307,8 @@ static int hpsa_get_raid_map(struct ctlr_info *h, cmd_free(h, c); return -1; } - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, + NO_TIMEOUT); if (rc) goto out; ei = c->err_info; @@ -3349,8 +3350,8 @@ static int hpsa_bmic_sense_subsystem_information(struct ctlr_info *h, c->Request.CDB[2] = bmic_device_index & 0xff; c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff; - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, + NO_TIMEOUT); if (rc) goto out; ei = c->err_info; @@ -3377,8 +3378,8 @@ static int hpsa_bmic_id_controller(struct ctlr_info *h, if (rc) goto out; - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, + NO_TIMEOUT); if (rc) goto out; ei = c->err_info; @@ -3408,7 +3409,7 @@ static int hpsa_bmic_id_physical_device(struct ctlr_info *h, c->Request.CDB[2] = bmic_device_index & 0xff; c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff; - hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE, + hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, NO_TIMEOUT); ei = c->err_info; if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { @@ -3484,7 +3485,7 @@ static void hpsa_get_enclosure_info(struct ctlr_info *h, else c->Request.CDB[5] = 0; - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE, + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, NO_TIMEOUT); if (rc) goto out; @@ -3731,8 +3732,8 @@ static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical, } if (extended_response) c->Request.CDB[1] = extended_response; - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, + NO_TIMEOUT); if (rc) goto out; ei = c->err_info; @@ -6320,8 +6321,8 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) /* Fill in the scatter gather information */ if (iocommand.buf_size > 0) { - temp64 = pci_map_single(h->pdev, buff, - iocommand.buf_size, PCI_DMA_BIDIRECTIONAL); + temp64 = dma_map_single(&h->pdev->dev, buff, + iocommand.buf_size, DMA_BIDIRECTIONAL); if (dma_mapping_error(&h->pdev->dev, (dma_addr_t) temp64)) { c->SG[0].Addr = cpu_to_le64(0); c->SG[0].Len = cpu_to_le32(0); @@ -6335,7 +6336,7 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); if (iocommand.buf_size > 0) - hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL); + hpsa_pci_unmap(h->pdev, c, 1, DMA_BIDIRECTIONAL); check_ioctl_unit_attention(h, c); if (rc) { rc = -EIO; @@ -6443,14 +6444,14 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) if (ioc->buf_size > 0) { int i; for (i = 0; i < sg_used; i++) { - temp64 = pci_map_single(h->pdev, buff[i], - buff_size[i], PCI_DMA_BIDIRECTIONAL); + temp64 = dma_map_single(&h->pdev->dev, buff[i], + buff_size[i], DMA_BIDIRECTIONAL); if (dma_mapping_error(&h->pdev->dev, (dma_addr_t) temp64)) { c->SG[i].Addr = cpu_to_le64(0); c->SG[i].Len = cpu_to_le32(0); hpsa_pci_unmap(h->pdev, c, i, - PCI_DMA_BIDIRECTIONAL); + DMA_BIDIRECTIONAL); status = -ENOMEM; goto cleanup0; } @@ -6463,7 +6464,7 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); if (sg_used) - hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL); + hpsa_pci_unmap(h->pdev, c, sg_used, DMA_BIDIRECTIONAL); check_ioctl_unit_attention(h, c); if (status) { status = -EIO; @@ -6575,7 +6576,7 @@ static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, void *buff, size_t size, u16 page_code, unsigned char *scsi3addr, int cmd_type) { - int pci_dir = XFER_NONE; + enum dma_data_direction dir = DMA_NONE; c->cmd_type = CMD_IOCTL_PEND; c->scsi_cmd = SCSI_CMD_BUSY; @@ -6781,18 +6782,18 @@ static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, switch (GET_DIR(c->Request.type_attr_dir)) { case XFER_READ: - pci_dir = PCI_DMA_FROMDEVICE; + dir = DMA_FROM_DEVICE; break; case XFER_WRITE: - pci_dir = PCI_DMA_TODEVICE; + dir = DMA_TO_DEVICE; break; case XFER_NONE: - pci_dir = PCI_DMA_NONE; + dir = DMA_NONE; break; default: - pci_dir = PCI_DMA_BIDIRECTIONAL; + dir = DMA_BIDIRECTIONAL; } - if (hpsa_map_one(h->pdev, c, buff, size, pci_dir)) + if (hpsa_map_one(h->pdev, c, buff, size, dir)) return -1; return 0; } @@ -6988,13 +6989,13 @@ static int hpsa_message(struct pci_dev *pdev, unsigned char opcode, * CCISS commands, so they must be allocated from the lower 4GiB of * memory. */ - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); if (err) { iounmap(vaddr); return err; } - cmd = pci_alloc_consistent(pdev, cmd_sz, &paddr64); + cmd = dma_alloc_coherent(&pdev->dev, cmd_sz, &paddr64, GFP_KERNEL); if (cmd == NULL) { iounmap(vaddr); return -ENOMEM; @@ -7043,7 +7044,7 @@ static int hpsa_message(struct pci_dev *pdev, unsigned char opcode, return -ETIMEDOUT; } - pci_free_consistent(pdev, cmd_sz, cmd, paddr64); + dma_free_coherent(&pdev->dev, cmd_sz, cmd, paddr64); if (tag & HPSA_ERROR_BIT) { dev_err(&pdev->dev, "controller message %02x:%02x failed\n", @@ -7910,7 +7911,7 @@ static void hpsa_free_cmd_pool(struct ctlr_info *h) kfree(h->cmd_pool_bits); h->cmd_pool_bits = NULL; if (h->cmd_pool) { - pci_free_consistent(h->pdev, + dma_free_coherent(&h->pdev->dev, h->nr_cmds * sizeof(struct CommandList), h->cmd_pool, h->cmd_pool_dhandle); @@ -7918,7 +7919,7 @@ static void hpsa_free_cmd_pool(struct ctlr_info *h) h->cmd_pool_dhandle = 0; } if (h->errinfo_pool) { - pci_free_consistent(h->pdev, + dma_free_coherent(&h->pdev->dev, h->nr_cmds * sizeof(struct ErrorInfo), h->errinfo_pool, h->errinfo_pool_dhandle); @@ -7932,12 +7933,12 @@ static int hpsa_alloc_cmd_pool(struct ctlr_info *h) h->cmd_pool_bits = kcalloc(DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG), sizeof(unsigned long), GFP_KERNEL); - h->cmd_pool = pci_alloc_consistent(h->pdev, + h->cmd_pool = dma_alloc_coherent(&h->pdev->dev, h->nr_cmds * sizeof(*h->cmd_pool), - &(h->cmd_pool_dhandle)); - h->errinfo_pool = pci_alloc_consistent(h->pdev, + &h->cmd_pool_dhandle, GFP_KERNEL); + h->errinfo_pool = dma_alloc_coherent(&h->pdev->dev, h->nr_cmds * sizeof(*h->errinfo_pool), - &(h->errinfo_pool_dhandle)); + &h->errinfo_pool_dhandle, GFP_KERNEL); if ((h->cmd_pool_bits == NULL) || (h->cmd_pool == NULL) || (h->errinfo_pool == NULL)) { @@ -8064,7 +8065,7 @@ static void hpsa_free_reply_queues(struct ctlr_info *h) for (i = 0; i < h->nreply_queues; i++) { if (!h->reply_queue[i].head) continue; - pci_free_consistent(h->pdev, + dma_free_coherent(&h->pdev->dev, h->reply_queue_size, h->reply_queue[i].head, h->reply_queue[i].busaddr); @@ -8590,11 +8591,11 @@ reinit_after_soft_reset: number_of_controllers++; /* configure PCI DMA stuff */ - rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); if (rc == 0) { dac = 1; } else { - rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); if (rc == 0) { dac = 0; } else { @@ -8793,8 +8794,8 @@ static void hpsa_flush_cache(struct ctlr_info *h) RAID_CTLR_LUNID, TYPE_CMD)) { goto out; } - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_TODEVICE, DEFAULT_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_TO_DEVICE, + DEFAULT_TIMEOUT); if (rc) goto out; if (c->err_info->CommandStatus != 0) @@ -8829,8 +8830,8 @@ static void hpsa_disable_rld_caching(struct ctlr_info *h) RAID_CTLR_LUNID, TYPE_CMD)) goto errout; - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, + NO_TIMEOUT); if ((rc != 0) || (c->err_info->CommandStatus != 0)) goto errout; @@ -8841,8 +8842,8 @@ static void hpsa_disable_rld_caching(struct ctlr_info *h) RAID_CTLR_LUNID, TYPE_CMD)) goto errout; - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_TODEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_TO_DEVICE, + NO_TIMEOUT); if ((rc != 0) || (c->err_info->CommandStatus != 0)) goto errout; @@ -8851,8 +8852,8 @@ static void hpsa_disable_rld_caching(struct ctlr_info *h) RAID_CTLR_LUNID, TYPE_CMD)) goto errout; - rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, - PCI_DMA_FROMDEVICE, NO_TIMEOUT); + rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, DMA_FROM_DEVICE, + NO_TIMEOUT); if ((rc != 0) || (c->err_info->CommandStatus != 0)) goto errout; @@ -9224,9 +9225,9 @@ static int hpsa_alloc_ioaccel1_cmd_and_bft(struct ctlr_info *h) BUILD_BUG_ON(sizeof(struct io_accel1_cmd) % IOACCEL1_COMMANDLIST_ALIGNMENT); h->ioaccel_cmd_pool = - pci_alloc_consistent(h->pdev, + dma_alloc_coherent(&h->pdev->dev, h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), - &(h->ioaccel_cmd_pool_dhandle)); + &h->ioaccel_cmd_pool_dhandle, GFP_KERNEL); h->ioaccel1_blockFetchTable = kmalloc(((h->ioaccel_maxsg + 1) * @@ -9277,9 +9278,9 @@ static int hpsa_alloc_ioaccel2_cmd_and_bft(struct ctlr_info *h) BUILD_BUG_ON(sizeof(struct io_accel2_cmd) % IOACCEL2_COMMANDLIST_ALIGNMENT); h->ioaccel2_cmd_pool = - pci_alloc_consistent(h->pdev, + dma_alloc_coherent(&h->pdev->dev, h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), - &(h->ioaccel2_cmd_pool_dhandle)); + &h->ioaccel2_cmd_pool_dhandle, GFP_KERNEL); h->ioaccel2_blockFetchTable = kmalloc(((h->ioaccel_maxsg + 1) * @@ -9352,9 +9353,10 @@ static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h) h->reply_queue_size = h->max_commands * sizeof(u64); for (i = 0; i < h->nreply_queues; i++) { - h->reply_queue[i].head = pci_alloc_consistent(h->pdev, + h->reply_queue[i].head = dma_alloc_coherent(&h->pdev->dev, h->reply_queue_size, - &(h->reply_queue[i].busaddr)); + &h->reply_queue[i].busaddr, + GFP_KERNEL); if (!h->reply_queue[i].head) { rc = -ENOMEM; goto clean1; /* rq, ioaccel */ -- cgit