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[SCSI] aic7xxx: remove some dead wood

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especially the now dead scsi_cmnd overlay

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Christoph Hellwig 2005-06-11 00:13:30 +02:00 committed by James Bottomley
parent 3d65692aed
commit 8eb3794257
3 changed files with 3 additions and 47 deletions
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1
drivers/scsi/aic7xxx/aic7xxx.h
View file

@ -346,7 +346,6 @@ typedef enum {
* controller.
*/
AHC_NEWEEPROM_FMT = 0x4000,
AHC_RESOURCE_SHORTAGE = 0x8000,
AHC_TQINFIFO_BLOCKED = 0x10000, /* Blocked waiting for ATIOs */
AHC_INT50_SPEEDFLEX = 0x20000, /*
* Internal 50pin connector

18
drivers/scsi/aic7xxx/aic7xxx_osm.c
View file

@ -500,17 +500,6 @@ ahc_linux_detect(struct scsi_host_template *template)
struct ahc_softc *ahc;
int found = 0;
/*
* Sanity checking of Linux SCSI data structures so
* that some of our hacks^H^H^H^H^Hassumptions aren't
* violated.
*/
if (offsetof(struct ahc_cmd_internal, end)
> offsetof(struct scsi_cmnd, host_scribble)) {
printf("ahc_linux_detect: SCSI data structures changed.\n");
printf("ahc_linux_detect: Unable to attach\n");
return (0);
}
/*
* If we've been passed any parameters, process them now.
*/
@ -1587,10 +1576,9 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev,
/*
* Get an scb to use.
*/
if ((scb = ahc_get_scb(ahc)) == NULL) {
ahc->flags |= AHC_RESOURCE_SHORTAGE;
return SCSI_MLQUEUE_HOST_BUSY;
}
scb = ahc_get_scb(ahc);
if (!scb)
return SCSI_MLQUEUE_HOST_BUSY;
scb->io_ctx = cmd;
scb->platform_data->dev = dev;

31
drivers/scsi/aic7xxx/aic7xxx_osm.h
View file

@ -268,35 +268,6 @@ ahc_scb_timer_reset(struct scb *scb, u_int usec)
#define AIC7XXX_DRIVER_VERSION "6.2.36"
/**************************** Front End Queues ********************************/
/*
* Data structure used to cast the Linux struct scsi_cmnd to something
* that allows us to use the queue macros. The linux structure has
* plenty of space to hold the links fields as required by the queue
* macros, but the queue macors require them to have the correct type.
*/
struct ahc_cmd_internal {
/* Area owned by the Linux scsi layer. */
uint8_t private[offsetof(struct scsi_cmnd, SCp.Status)];
union {
STAILQ_ENTRY(ahc_cmd) ste;
LIST_ENTRY(ahc_cmd) le;
TAILQ_ENTRY(ahc_cmd) tqe;
} links;
uint32_t end;
};
struct ahc_cmd {
union {
struct ahc_cmd_internal icmd;
struct scsi_cmnd scsi_cmd;
} un;
};
#define acmd_icmd(cmd) ((cmd)->un.icmd)
#define acmd_scsi_cmd(cmd) ((cmd)->un.scsi_cmd)
#define acmd_links un.icmd.links
/*************************** Device Data Structures ***************************/
/*
* A per probed device structure used to deal with some error recovery
@ -305,7 +276,6 @@ struct ahc_cmd {
* after a successfully completed inquiry command to the target when
* that inquiry data indicates a lun is present.
*/
TAILQ_HEAD(ahc_busyq, ahc_cmd);
typedef enum {
AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
@ -900,7 +870,6 @@ ahc_notify_xfer_settings_change(struct ahc_softc *ahc,
static __inline void
ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
{
ahc->flags &= ~AHC_RESOURCE_SHORTAGE;
}
int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);