diff options
Diffstat (limited to 'include/scsi/scsi_device.h')
| -rw-r--r-- | include/scsi/scsi_device.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 4c36af6edd79..202f4d6a4342 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -17,6 +17,8 @@ struct scsi_sense_hdr; typedef __u64 __bitwise blist_flags_t; +#define SCSI_SENSE_BUFFERSIZE 96 + struct scsi_mode_data { __u32 length; __u16 block_descriptor_length; @@ -426,11 +428,21 @@ extern const char *scsi_device_state_name(enum scsi_device_state); extern int scsi_is_sdev_device(const struct device *); extern int scsi_is_target_device(const struct device *); extern void scsi_sanitize_inquiry_string(unsigned char *s, int len); -extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, +extern int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, unsigned char *sense, struct scsi_sense_hdr *sshdr, int timeout, int retries, u64 flags, req_flags_t rq_flags, int *resid); +/* Make sure any sense buffer is the correct size. */ +#define scsi_execute(sdev, cmd, data_direction, buffer, bufflen, sense, \ + sshdr, timeout, retries, flags, rq_flags, resid) \ +({ \ + BUILD_BUG_ON((sense) != NULL && \ + sizeof(sense) != SCSI_SENSE_BUFFERSIZE); \ + __scsi_execute(sdev, cmd, data_direction, buffer, bufflen, \ + sense, sshdr, timeout, retries, flags, rq_flags, \ + resid); \ +}) static inline int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, struct scsi_sense_hdr *sshdr, int timeout, |