diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2021-10-20 14:40:17 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-10-26 23:24:49 -0400 |
| commit | 957d63e77a9ce9ef63b2a6b4d1d84d549e427cd8 (patch) | |
| tree | e539e405c55d2cdd8a090cc81f51093cb204d943 /drivers/scsi/ufs | |
| parent | 91bb765ccab1a067e646c9dbed0b5ed0bb7c39c9 (diff) | |
| download | linux-957d63e77a9ce9ef63b2a6b4d1d84d549e427cd8.tar.bz2 | |
scsi: ufs: core: Improve static type checking
Introduce an enumeration type for the overall command status to allow the
compiler to perform more static type checking.
Link: https://lore.kernel.org/r/20211020214024.2007615-4-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 9 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshci.h | 5 |
2 files changed, 9 insertions, 5 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 53dd42f95eed..610be6746f74 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -711,7 +711,7 @@ static inline bool ufshcd_is_device_present(struct ufs_hba *hba) * This function is used to get the OCS field from UTRD * Returns the OCS field in the UTRD */ -static inline int ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp) +static enum utp_ocs ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp) { return le32_to_cpu(lrbp->utr_descriptor_ptr->header.dword_2) & MASK_OCS; } @@ -5089,7 +5089,7 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) { int result = 0; int scsi_status; - int ocs; + enum utp_ocs ocs; /* overall command status of utrd */ ocs = ufshcd_get_tr_ocs(lrbp); @@ -6631,7 +6631,8 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id, u8 tm_function, u8 *tm_response) { struct utp_task_req_desc treq = { { 0 }, }; - int ocs_value, err; + enum utp_ocs ocs_value; + int err; /* Configure task request descriptor */ treq.header.dword_0 = cpu_to_le32(UTP_REQ_DESC_INT_CMD); @@ -6809,7 +6810,7 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba, int err; enum dev_cmd_type cmd_type = DEV_CMD_TYPE_QUERY; struct utp_task_req_desc treq = { { 0 }, }; - int ocs_value; + enum utp_ocs ocs_value; u8 tm_f = be32_to_cpu(req_upiu->header.dword_1) >> 16 & MASK_TM_FUNC; switch (msgcode) { diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h index 9a754fab8908..f66cf9e477cb 100644 --- a/drivers/scsi/ufs/ufshci.h +++ b/drivers/scsi/ufs/ufshci.h @@ -389,7 +389,7 @@ enum { }; /* Overall command status values */ -enum { +enum utp_ocs { OCS_SUCCESS = 0x0, OCS_INVALID_CMD_TABLE_ATTR = 0x1, OCS_INVALID_PRDT_ATTR = 0x2, @@ -402,6 +402,9 @@ enum { OCS_INVALID_CRYPTO_CONFIG = 0x9, OCS_GENERAL_CRYPTO_ERROR = 0xA, OCS_INVALID_COMMAND_STATUS = 0x0F, +}; + +enum { MASK_OCS = 0x0F, }; |