diff options
Diffstat (limited to 'drivers/scsi/megaraid.h')
| -rw-r--r-- | drivers/scsi/megaraid.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h index cce23a086fbe..013fbfb911b9 100644 --- a/drivers/scsi/megaraid.h +++ b/drivers/scsi/megaraid.h @@ -4,6 +4,7 @@ #include <linux/spinlock.h> #include <linux/mutex.h> +#include <scsi/scsi_cmnd.h> #define MEGARAID_VERSION \ "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n" @@ -756,8 +757,28 @@ struct private_bios_data { #define CACHED_IO 0 #define DIRECT_IO 1 +struct megaraid_cmd_priv { + struct list_head entry; +}; + +#define SCSI_LIST(scp) \ + (&((struct megaraid_cmd_priv *)scsi_cmd_priv(scp))->entry) + +struct scsi_cmd_and_priv { + struct scsi_cmnd cmd; + struct megaraid_cmd_priv priv; +}; + +static inline struct scsi_cmnd * +megaraid_to_scsi_cmd(struct megaraid_cmd_priv *cmd_priv) +{ + /* See also scsi_mq_setup_tags() */ + BUILD_BUG_ON(sizeof(struct scsi_cmd_and_priv) != + sizeof(struct scsi_cmnd) + + sizeof(struct megaraid_cmd_priv)); -#define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp)) + return &container_of(cmd_priv, struct scsi_cmd_and_priv, priv)->cmd; +} /* * Each controller's soft state |