scsi: pmcraid: fix endianess sparse annotations
The use of le32_to_cpu() etc in this driver looks completely arbitrary. It may have made sense at some point, but it is not applied consistently, so this driver presumably won't work on big-endian kernel builds. Unfortunately it's unclear whether the type names or the calls to le32_to_cpu() are the correct ones. I'm taking educated guesses here and assume that most of the __le32 and __le16 annotations are correct, adding the conversion helpers whereever we access those fields. The exceptions are the 'fw_version' field that is always accessed as big-endian, so I'm changing the type here, and the 'hrrq' values that are accessed as little-endian, so I'm changing those the other way. None of these changes should have any effect on little-endian architectures like x86, but it addresses the sparse warnings. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Arnd Bergmann
Martin K. Petersen
Родитель
3397623b37
Коммит
45c80be614
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@ -175,7 +175,7 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
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if (fw_version <= PMCRAID_FW_VERSION_1)
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target = temp->cfg_entry.unique_flags1;
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else
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target = temp->cfg_entry.array_id & 0xFF;
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target = le16_to_cpu(temp->cfg_entry.array_id) & 0xFF;
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if (target > PMCRAID_MAX_VSET_TARGETS)
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continue;
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@ -330,7 +330,7 @@ static void pmcraid_init_cmdblk(struct pmcraid_cmd *cmd, int index)
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ioarcb->request_flags0 = 0;
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ioarcb->request_flags1 = 0;
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ioarcb->cmd_timeout = 0;
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ioarcb->ioarcb_bus_addr &= (~0x1FULL);
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ioarcb->ioarcb_bus_addr &= cpu_to_le64(~0x1FULL);
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ioarcb->ioadl_bus_addr = 0;
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ioarcb->ioadl_length = 0;
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ioarcb->data_transfer_length = 0;
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@ -898,8 +898,7 @@ static void _pmcraid_fire_command(struct pmcraid_cmd *cmd)
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/* driver writes lower 32-bit value of IOARCB address only */
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mb();
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iowrite32(le32_to_cpu(cmd->ioa_cb->ioarcb.ioarcb_bus_addr),
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pinstance->ioarrin);
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iowrite32(le64_to_cpu(cmd->ioa_cb->ioarcb.ioarcb_bus_addr), pinstance->ioarrin);
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}
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/**
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@ -1051,7 +1050,7 @@ static void pmcraid_get_fwversion(struct pmcraid_cmd *cmd)
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offsetof(struct pmcraid_ioarcb,
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add_data.u.ioadl[0]));
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ioarcb->ioadl_length = cpu_to_le32(sizeof(struct pmcraid_ioadl_desc));
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ioarcb->ioarcb_bus_addr &= ~(0x1FULL);
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ioarcb->ioarcb_bus_addr &= cpu_to_le64(~(0x1FULL));
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ioarcb->request_flags0 |= NO_LINK_DESCS;
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ioarcb->data_transfer_length = cpu_to_le32(data_size);
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@ -1077,7 +1076,7 @@ static void pmcraid_identify_hrrq(struct pmcraid_cmd *cmd)
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struct pmcraid_ioarcb *ioarcb = &cmd->ioa_cb->ioarcb;
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int index = cmd->hrrq_index;
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__be64 hrrq_addr = cpu_to_be64(pinstance->hrrq_start_bus_addr[index]);
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u32 hrrq_size = cpu_to_be32(sizeof(u32) * PMCRAID_MAX_CMD);
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__be32 hrrq_size = cpu_to_be32(sizeof(u32) * PMCRAID_MAX_CMD);
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void (*done_function)(struct pmcraid_cmd *);
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pmcraid_reinit_cmdblk(cmd);
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@ -1202,7 +1201,7 @@ static struct pmcraid_cmd *pmcraid_init_hcam
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ioadl[0].flags |= IOADL_FLAGS_READ_LAST;
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ioadl[0].data_len = cpu_to_le32(rcb_size);
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ioadl[0].address = cpu_to_le32(dma);
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ioadl[0].address = cpu_to_le64(dma);
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cmd->cmd_done = cmd_done;
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return cmd;
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@ -1237,7 +1236,13 @@ static void pmcraid_prepare_cancel_cmd(
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)
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{
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struct pmcraid_ioarcb *ioarcb = &cmd->ioa_cb->ioarcb;
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__be64 ioarcb_addr = cmd_to_cancel->ioa_cb->ioarcb.ioarcb_bus_addr;
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__be64 ioarcb_addr;
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/* IOARCB address of the command to be cancelled is given in
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* cdb[2]..cdb[9] is Big-Endian format. Note that length bits in
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* IOARCB address are not masked.
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*/
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ioarcb_addr = cpu_to_be64(le64_to_cpu(cmd_to_cancel->ioa_cb->ioarcb.ioarcb_bus_addr));
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/* Get the resource handle to where the command to be aborted has been
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* sent.
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@ -1247,11 +1252,6 @@ static void pmcraid_prepare_cancel_cmd(
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memset(ioarcb->cdb, 0, PMCRAID_MAX_CDB_LEN);
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ioarcb->cdb[0] = PMCRAID_ABORT_CMD;
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/* IOARCB address of the command to be cancelled is given in
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* cdb[2]..cdb[9] is Big-Endian format. Note that length bits in
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* IOARCB address are not masked.
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*/
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ioarcb_addr = cpu_to_be64(ioarcb_addr);
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memcpy(&(ioarcb->cdb[2]), &ioarcb_addr, sizeof(ioarcb_addr));
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}
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@ -1493,7 +1493,7 @@ static int pmcraid_notify_ccn(struct pmcraid_instance *pinstance)
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{
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return pmcraid_notify_aen(pinstance,
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pinstance->ccn.msg,
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pinstance->ccn.hcam->data_len +
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le32_to_cpu(pinstance->ccn.hcam->data_len) +
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sizeof(struct pmcraid_hcam_hdr));
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}
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@ -1508,7 +1508,7 @@ static int pmcraid_notify_ldn(struct pmcraid_instance *pinstance)
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{
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return pmcraid_notify_aen(pinstance,
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pinstance->ldn.msg,
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pinstance->ldn.hcam->data_len +
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le32_to_cpu(pinstance->ldn.hcam->data_len) +
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sizeof(struct pmcraid_hcam_hdr));
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}
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@ -1556,10 +1556,10 @@ static void pmcraid_handle_config_change(struct pmcraid_instance *pinstance)
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pmcraid_info("CCN(%x): %x timestamp: %llx type: %x lost: %x flags: %x \
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res: %x:%x:%x:%x\n",
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pinstance->ccn.hcam->ilid,
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le32_to_cpu(pinstance->ccn.hcam->ilid),
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pinstance->ccn.hcam->op_code,
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((pinstance->ccn.hcam->timestamp1) |
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((pinstance->ccn.hcam->timestamp2 & 0xffffffffLL) << 32)),
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(le32_to_cpu(pinstance->ccn.hcam->timestamp1) |
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((le32_to_cpu(pinstance->ccn.hcam->timestamp2) & 0xffffffffLL) << 32)),
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pinstance->ccn.hcam->notification_type,
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pinstance->ccn.hcam->notification_lost,
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pinstance->ccn.hcam->flags,
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@ -1570,7 +1570,7 @@ static void pmcraid_handle_config_change(struct pmcraid_instance *pinstance)
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RES_IS_VSET(*cfg_entry) ?
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(fw_version <= PMCRAID_FW_VERSION_1 ?
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cfg_entry->unique_flags1 :
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cfg_entry->array_id & 0xFF) :
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le16_to_cpu(cfg_entry->array_id) & 0xFF) :
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RES_TARGET(cfg_entry->resource_address),
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RES_LUN(cfg_entry->resource_address));
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@ -1658,7 +1658,7 @@ static void pmcraid_handle_config_change(struct pmcraid_instance *pinstance)
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if (fw_version <= PMCRAID_FW_VERSION_1)
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res->cfg_entry.unique_flags1 &= 0x7F;
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else
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res->cfg_entry.array_id &= 0xFF;
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res->cfg_entry.array_id &= cpu_to_le16(0xFF);
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res->change_detected = RES_CHANGE_DEL;
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res->cfg_entry.resource_handle =
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PMCRAID_INVALID_RES_HANDLE;
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@ -1716,8 +1716,8 @@ static void pmcraid_ioasc_logger(u32 ioasc, struct pmcraid_cmd *cmd)
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/* log the error string */
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pmcraid_err("cmd [%x] for resource %x failed with %x(%s)\n",
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cmd->ioa_cb->ioarcb.cdb[0],
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cmd->ioa_cb->ioarcb.resource_handle,
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le32_to_cpu(ioasc), error_info->error_string);
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le32_to_cpu(cmd->ioa_cb->ioarcb.resource_handle),
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ioasc, error_info->error_string);
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}
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/**
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@ -2034,7 +2034,7 @@ static void pmcraid_fail_outstanding_cmds(struct pmcraid_instance *pinstance)
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cmd->ioa_cb->ioasa.ioasc =
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cpu_to_le32(PMCRAID_IOASC_IOA_WAS_RESET);
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cmd->ioa_cb->ioasa.ilid =
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cpu_to_be32(PMCRAID_DRIVER_ILID);
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cpu_to_le32(PMCRAID_DRIVER_ILID);
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/* In case the command timer is still running */
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del_timer(&cmd->timer);
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@ -2526,7 +2526,7 @@ static void pmcraid_cancel_all(struct pmcraid_cmd *cmd, u32 sense)
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ioarcb->ioadl_bus_addr = 0;
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ioarcb->ioadl_length = 0;
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ioarcb->data_transfer_length = 0;
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ioarcb->ioarcb_bus_addr &= (~0x1FULL);
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ioarcb->ioarcb_bus_addr &= cpu_to_le64((~0x1FULL));
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/* writing to IOARRIN must be protected by host_lock, as mid-layer
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* schedule queuecommand while we are doing this
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@ -2689,8 +2689,8 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
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* mid-layer
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*/
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if (ioasa->auto_sense_length != 0) {
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short sense_len = ioasa->auto_sense_length;
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int data_size = min_t(u16, le16_to_cpu(sense_len),
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short sense_len = le16_to_cpu(ioasa->auto_sense_length);
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int data_size = min_t(u16, sense_len,
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SCSI_SENSE_BUFFERSIZE);
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memcpy(scsi_cmd->sense_buffer,
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@ -2912,7 +2912,7 @@ static struct pmcraid_cmd *pmcraid_abort_cmd(struct pmcraid_cmd *cmd)
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pmcraid_info("aborting command CDB[0]= %x with index = %d\n",
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cmd->ioa_cb->ioarcb.cdb[0],
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cmd->ioa_cb->ioarcb.response_handle >> 2);
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le32_to_cpu(cmd->ioa_cb->ioarcb.response_handle) >> 2);
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init_completion(&cancel_cmd->wait_for_completion);
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cancel_cmd->completion_req = 1;
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@ -3137,9 +3137,8 @@ pmcraid_init_ioadls(struct pmcraid_cmd *cmd, int sgcount)
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int ioadl_count = 0;
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if (ioarcb->add_cmd_param_length)
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ioadl_count = DIV_ROUND_UP(ioarcb->add_cmd_param_length, 16);
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ioarcb->ioadl_length =
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sizeof(struct pmcraid_ioadl_desc) * sgcount;
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ioadl_count = DIV_ROUND_UP(le16_to_cpu(ioarcb->add_cmd_param_length), 16);
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ioarcb->ioadl_length = cpu_to_le32(sizeof(struct pmcraid_ioadl_desc) * sgcount);
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if ((sgcount + ioadl_count) > (ARRAY_SIZE(ioarcb->add_data.u.ioadl))) {
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/* external ioadls start at offset 0x80 from control_block
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@ -3147,7 +3146,7 @@ pmcraid_init_ioadls(struct pmcraid_cmd *cmd, int sgcount)
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* It is necessary to indicate to firmware that driver is
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* using ioadls to be treated as external to IOARCB.
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*/
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ioarcb->ioarcb_bus_addr &= ~(0x1FULL);
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ioarcb->ioarcb_bus_addr &= cpu_to_le64(~(0x1FULL));
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ioarcb->ioadl_bus_addr =
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cpu_to_le64((cmd->ioa_cb_bus_addr) +
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offsetof(struct pmcraid_ioarcb,
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@ -3161,7 +3160,7 @@ pmcraid_init_ioadls(struct pmcraid_cmd *cmd, int sgcount)
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ioadl = &ioarcb->add_data.u.ioadl[ioadl_count];
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ioarcb->ioarcb_bus_addr |=
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DIV_ROUND_CLOSEST(sgcount + ioadl_count, 8);
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cpu_to_le64(DIV_ROUND_CLOSEST(sgcount + ioadl_count, 8));
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}
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return ioadl;
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@ -3487,7 +3486,7 @@ static int pmcraid_queuecommand_lck(
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RES_IS_VSET(res->cfg_entry) ?
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(fw_version <= PMCRAID_FW_VERSION_1 ?
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res->cfg_entry.unique_flags1 :
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res->cfg_entry.array_id & 0xFF) :
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le16_to_cpu(res->cfg_entry.array_id) & 0xFF) :
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RES_TARGET(res->cfg_entry.resource_address),
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RES_LUN(res->cfg_entry.resource_address));
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@ -3703,7 +3702,7 @@ static long pmcraid_ioctl_passthrough(
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goto out_free_buffer;
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}
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request_size = buffer->ioarcb.data_transfer_length;
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request_size = le32_to_cpu(buffer->ioarcb.data_transfer_length);
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if (buffer->ioarcb.request_flags0 & TRANSFER_DIR_WRITE) {
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access = VERIFY_READ;
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@ -3726,7 +3725,8 @@ static long pmcraid_ioctl_passthrough(
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}
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/* check if we have any additional command parameters */
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if (buffer->ioarcb.add_cmd_param_length > PMCRAID_ADD_CMD_PARAM_LEN) {
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if (le16_to_cpu(buffer->ioarcb.add_cmd_param_length)
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> PMCRAID_ADD_CMD_PARAM_LEN) {
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rc = -EINVAL;
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goto out_free_buffer;
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}
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@ -3758,7 +3758,7 @@ static long pmcraid_ioctl_passthrough(
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buffer->ioarcb.add_cmd_param_offset;
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memcpy(ioarcb->add_data.u.add_cmd_params,
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buffer->ioarcb.add_data.u.add_cmd_params,
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buffer->ioarcb.add_cmd_param_length);
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le16_to_cpu(buffer->ioarcb.add_cmd_param_length));
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}
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/* set hrrq number where the IOA should respond to. Note that all cmds
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@ -3828,10 +3828,10 @@ static long pmcraid_ioctl_passthrough(
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wait_for_completion(&cmd->wait_for_completion);
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} else if (!wait_for_completion_timeout(
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&cmd->wait_for_completion,
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msecs_to_jiffies(buffer->ioarcb.cmd_timeout * 1000))) {
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msecs_to_jiffies(le16_to_cpu(buffer->ioarcb.cmd_timeout) * 1000))) {
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pmcraid_info("aborting cmd %d (CDB[0] = %x) due to timeout\n",
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le32_to_cpu(cmd->ioa_cb->ioarcb.response_handle >> 2),
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le32_to_cpu(cmd->ioa_cb->ioarcb.response_handle) >> 2,
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cmd->ioa_cb->ioarcb.cdb[0]);
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spin_lock_irqsave(pinstance->host->host_lock, lock_flags);
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@ -3840,7 +3840,7 @@ static long pmcraid_ioctl_passthrough(
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if (cancel_cmd) {
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wait_for_completion(&cancel_cmd->wait_for_completion);
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ioasc = cancel_cmd->ioa_cb->ioasa.ioasc;
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ioasc = le32_to_cpu(cancel_cmd->ioa_cb->ioasa.ioasc);
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pmcraid_return_cmd(cancel_cmd);
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/* if abort task couldn't find the command i.e it got
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@ -4455,7 +4455,7 @@ static void pmcraid_worker_function(struct work_struct *workp)
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if (fw_version <= PMCRAID_FW_VERSION_1)
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target = res->cfg_entry.unique_flags1;
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else
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target = res->cfg_entry.array_id & 0xFF;
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target = le16_to_cpu(res->cfg_entry.array_id) & 0xFF;
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lun = PMCRAID_VSET_LUN_ID;
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} else {
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bus = PMCRAID_PHYS_BUS_ID;
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@ -4494,7 +4494,7 @@ static void pmcraid_tasklet_function(unsigned long instance)
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unsigned long host_lock_flags;
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spinlock_t *lockp; /* hrrq buffer lock */
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int id;
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__le32 resp;
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u32 resp;
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hrrq_vector = (struct pmcraid_isr_param *)instance;
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pinstance = hrrq_vector->drv_inst;
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@ -5534,8 +5534,7 @@ static void pmcraid_set_timestamp(struct pmcraid_cmd *cmd)
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struct pmcraid_ioarcb *ioarcb = &cmd->ioa_cb->ioarcb;
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__be32 time_stamp_len = cpu_to_be32(PMCRAID_TIMESTAMP_LEN);
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struct pmcraid_ioadl_desc *ioadl = ioarcb->add_data.u.ioadl;
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__le64 timestamp;
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u64 timestamp;
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timestamp = ktime_get_real_seconds() * 1000;
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@ -5557,7 +5556,7 @@ static void pmcraid_set_timestamp(struct pmcraid_cmd *cmd)
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offsetof(struct pmcraid_ioarcb,
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add_data.u.ioadl[0]));
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ioarcb->ioadl_length = cpu_to_le32(sizeof(struct pmcraid_ioadl_desc));
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ioarcb->ioarcb_bus_addr &= ~(0x1FULL);
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ioarcb->ioarcb_bus_addr &= cpu_to_le64(~(0x1FULL));
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ioarcb->request_flags0 |= NO_LINK_DESCS;
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ioarcb->request_flags0 |= TRANSFER_DIR_WRITE;
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@ -5616,7 +5615,7 @@ static void pmcraid_init_res_table(struct pmcraid_cmd *cmd)
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list_for_each_entry_safe(res, temp, &pinstance->used_res_q, queue)
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list_move_tail(&res->queue, &old_res);
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for (i = 0; i < pinstance->cfg_table->num_entries; i++) {
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for (i = 0; i < le16_to_cpu(pinstance->cfg_table->num_entries); i++) {
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if (be16_to_cpu(pinstance->inq_data->fw_version) <=
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PMCRAID_FW_VERSION_1)
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cfgte = &pinstance->cfg_table->entries[i];
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@ -5671,7 +5670,7 @@ static void pmcraid_init_res_table(struct pmcraid_cmd *cmd)
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res->cfg_entry.resource_type,
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(fw_version <= PMCRAID_FW_VERSION_1 ?
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res->cfg_entry.unique_flags1 :
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||||
res->cfg_entry.array_id & 0xFF),
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le16_to_cpu(res->cfg_entry.array_id) & 0xFF),
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le32_to_cpu(res->cfg_entry.resource_address));
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}
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}
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@ -5709,7 +5708,7 @@ static void pmcraid_querycfg(struct pmcraid_cmd *cmd)
|
|||
struct pmcraid_ioarcb *ioarcb = &cmd->ioa_cb->ioarcb;
|
||||
struct pmcraid_ioadl_desc *ioadl = ioarcb->add_data.u.ioadl;
|
||||
struct pmcraid_instance *pinstance = cmd->drv_inst;
|
||||
int cfg_table_size = cpu_to_be32(sizeof(struct pmcraid_config_table));
|
||||
__be32 cfg_table_size = cpu_to_be32(sizeof(struct pmcraid_config_table));
|
||||
|
||||
if (be16_to_cpu(pinstance->inq_data->fw_version) <=
|
||||
PMCRAID_FW_VERSION_1)
|
||||
|
|
@ -5734,7 +5733,7 @@ static void pmcraid_querycfg(struct pmcraid_cmd *cmd)
|
|||
offsetof(struct pmcraid_ioarcb,
|
||||
add_data.u.ioadl[0]));
|
||||
ioarcb->ioadl_length = cpu_to_le32(sizeof(struct pmcraid_ioadl_desc));
|
||||
ioarcb->ioarcb_bus_addr &= ~(0x1FULL);
|
||||
ioarcb->ioarcb_bus_addr &= cpu_to_le64(~0x1FULL);
|
||||
|
||||
ioarcb->request_flags0 |= NO_LINK_DESCS;
|
||||
ioarcb->data_transfer_length =
|
||||
|
|
|
|||
|
|
@ -554,7 +554,7 @@ struct pmcraid_inquiry_data {
|
|||
__u8 add_page_len;
|
||||
__u8 length;
|
||||
__u8 reserved2;
|
||||
__le16 fw_version;
|
||||
__be16 fw_version;
|
||||
__u8 reserved3[16];
|
||||
};
|
||||
|
||||
|
|
@ -697,13 +697,13 @@ struct pmcraid_instance {
|
|||
dma_addr_t hrrq_start_bus_addr[PMCRAID_NUM_MSIX_VECTORS];
|
||||
|
||||
/* Pointer to 1st entry of HRRQ */
|
||||
__be32 *hrrq_start[PMCRAID_NUM_MSIX_VECTORS];
|
||||
__le32 *hrrq_start[PMCRAID_NUM_MSIX_VECTORS];
|
||||
|
||||
/* Pointer to last entry of HRRQ */
|
||||
__be32 *hrrq_end[PMCRAID_NUM_MSIX_VECTORS];
|
||||
__le32 *hrrq_end[PMCRAID_NUM_MSIX_VECTORS];
|
||||
|
||||
/* Pointer to current pointer of hrrq */
|
||||
__be32 *hrrq_curr[PMCRAID_NUM_MSIX_VECTORS];
|
||||
__le32 *hrrq_curr[PMCRAID_NUM_MSIX_VECTORS];
|
||||
|
||||
/* Lock for HRRQ access */
|
||||
spinlock_t hrrq_lock[PMCRAID_NUM_MSIX_VECTORS];
|
||||
|
|
|
|||
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