ncr5380: Remove NCR5380_local_declare and NCR5380_setup macros
The NCR5380_local_declare and NCR5380_setup macros exist to define and
initialize a particular local variable, to provide the address of the
chip registers needed for the driver's implementation of its
NCR5380_read/write register access macros.
In cumana_1 and macscsi, these macros generate pointless code like this,
struct Scsi_Host *_instance;
_instance = instance;
In pas16, the use of NCR5380_read/write in pas16_hw_detect() requires that
the io_port local variable has been defined and initialized, but the
NCR5380_local_declare and NCR5380_setup macros can't be used for that
purpose because the Scsi_Host struct has not yet been instantiated.
Moreover, these macros were removed from atari_NCR5380.c long ago and
now they constitute yet another discrepancy between the two core driver
forks.
Remove these "optimizations".
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index ed8346f..e4cd85e 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -230,11 +230,6 @@
* USLEEP_POLL - amount of time, in jiffies, to poll
*
* These macros MUST be defined :
- * NCR5380_local_declare() - declare any local variables needed for your
- * transfer routines.
- *
- * NCR5380_setup(instance) - initialize any local variables needed from a given
- * instance of the host adapter for NCR5380_{read,write,pread,pwrite}
*
* NCR5380_read(register) - read from the specified register
*
@@ -267,8 +262,8 @@
* possible) function may be used.
*/
-static int do_abort(struct Scsi_Host *host);
-static void do_reset(struct Scsi_Host *host);
+static int do_abort(struct Scsi_Host *);
+static void do_reset(struct Scsi_Host *);
/*
* initialize_SCp - init the scsi pointer field
@@ -313,12 +308,9 @@
static int NCR5380_poll_politely(struct Scsi_Host *instance, int reg, int bit, int val, int t)
{
- NCR5380_local_declare();
int n = 500; /* At about 8uS a cycle for the cpu access */
unsigned long end = jiffies + t;
int r;
-
- NCR5380_setup(instance);
while( n-- > 0)
{
@@ -406,9 +398,7 @@
static void NCR5380_print(struct Scsi_Host *instance)
{
- NCR5380_local_declare();
unsigned char status, data, basr, mr, icr, i;
- NCR5380_setup(instance);
data = NCR5380_read(CURRENT_SCSI_DATA_REG);
status = NCR5380_read(STATUS_REG);
@@ -447,10 +437,8 @@
static void NCR5380_print_phase(struct Scsi_Host *instance)
{
- NCR5380_local_declare();
unsigned char status;
int i;
- NCR5380_setup(instance);
status = NCR5380_read(STATUS_REG);
if (!(status & SR_REQ))
@@ -566,11 +554,9 @@
static int __init __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance,
int possible)
{
- NCR5380_local_declare();
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
unsigned long timeout;
int trying_irqs, i, mask;
- NCR5380_setup(instance);
for (trying_irqs = 0, i = 1, mask = 2; i < 16; ++i, mask <<= 1)
if ((mask & possible) && (request_irq(i, &probe_intr, 0, "NCR-probe", NULL) == 0))
@@ -791,7 +777,6 @@
static int NCR5380_init(struct Scsi_Host *instance, int flags)
{
- NCR5380_local_declare();
int i, pass;
unsigned long timeout;
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
@@ -808,8 +793,6 @@
instance->NCR5380_instance_name += NCR53C400_address_adjust;
#endif
- NCR5380_setup(instance);
-
hostdata->aborted = 0;
hostdata->id_mask = 1 << instance->this_id;
for (i = hostdata->id_mask; i <= 0x80; i <<= 1)
@@ -1100,7 +1083,6 @@
static irqreturn_t NCR5380_intr(int dummy, void *dev_id)
{
- NCR5380_local_declare();
struct Scsi_Host *instance = dev_id;
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
int done;
@@ -1114,7 +1096,6 @@
done = 1;
spin_lock_irqsave(instance->host_lock, flags);
/* Look for pending interrupts */
- NCR5380_setup(instance);
basr = NCR5380_read(BUS_AND_STATUS_REG);
/* XXX dispatch to appropriate routine if found and done=0 */
if (basr & BASR_IRQ) {
@@ -1205,7 +1186,6 @@
static int NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd)
{
- NCR5380_local_declare();
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
unsigned char tmp[3], phase;
unsigned char *data;
@@ -1213,7 +1193,6 @@
unsigned long timeout;
unsigned char value;
int err;
- NCR5380_setup(instance);
if (hostdata->selecting)
goto part2;
@@ -1487,7 +1466,6 @@
*/
static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data) {
- NCR5380_local_declare();
unsigned char p = *phase, tmp;
int c = *count;
unsigned char *d = *data;
@@ -1496,7 +1474,6 @@
*/
int break_allowed = 0;
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
- NCR5380_setup(instance);
if (!(p & SR_IO))
dprintk(NDEBUG_PIO, "scsi%d : pio write %d bytes\n", instance->host_no, c);
@@ -1623,10 +1600,8 @@
* Locks: caller holds queue lock
*/
-static void do_reset(struct Scsi_Host *host) {
- NCR5380_local_declare();
- NCR5380_setup(host);
-
+static void do_reset(struct Scsi_Host *instance)
+{
NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(NCR5380_read(STATUS_REG) & PHASE_MASK));
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_RST);
udelay(25);
@@ -1645,13 +1620,11 @@
* FIXME: sort this out and get new_eh running
*/
-static int do_abort(struct Scsi_Host *host) {
- NCR5380_local_declare();
+static int do_abort(struct Scsi_Host *instance)
+{
unsigned char *msgptr, phase, tmp;
int len;
int rc;
- NCR5380_setup(host);
-
/* Request message out phase */
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
@@ -1666,7 +1639,7 @@
* the target sees, so we just handshake.
*/
- rc = NCR5380_poll_politely(host, STATUS_REG, SR_REQ, SR_REQ, 60 * HZ);
+ rc = NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, 60 * HZ);
if(rc < 0)
return -1;
@@ -1677,7 +1650,7 @@
if ((tmp & PHASE_MASK) != PHASE_MSGOUT) {
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN | ICR_ASSERT_ACK);
- rc = NCR5380_poll_politely(host, STATUS_REG, SR_REQ, 0, 3*HZ);
+ rc = NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, 0, 3 * HZ);
NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN);
if(rc == -1)
return -1;
@@ -1686,7 +1659,7 @@
msgptr = &tmp;
len = 1;
phase = PHASE_MSGOUT;
- NCR5380_transfer_pio(host, &phase, &len, &msgptr);
+ NCR5380_transfer_pio(instance, &phase, &len, &msgptr);
/*
* If we got here, and the command completed successfully,
@@ -1719,7 +1692,6 @@
static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data) {
- NCR5380_local_declare();
register int c = *count;
register unsigned char p = *phase;
register unsigned char *d = *data;
@@ -1732,8 +1704,6 @@
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
- NCR5380_setup(instance);
-
if ((tmp = (NCR5380_read(STATUS_REG) & PHASE_MASK)) != p) {
*phase = tmp;
return -1;
@@ -2000,7 +1970,6 @@
*/
static void NCR5380_information_transfer(struct Scsi_Host *instance) {
- NCR5380_local_declare();
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *)instance->hostdata;
unsigned char msgout = NOP;
int sink = 0;
@@ -2014,8 +1983,6 @@
/* RvC: we need to set the end of the polling time */
unsigned long poll_time = jiffies + USLEEP_POLL;
- NCR5380_setup(instance);
-
while (1) {
tmp = NCR5380_read(STATUS_REG);
/* We only have a valid SCSI phase when REQ is asserted */
@@ -2406,7 +2373,6 @@
*/
static void NCR5380_reselect(struct Scsi_Host *instance) {
- NCR5380_local_declare();
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *)
instance->hostdata;
unsigned char target_mask;
@@ -2416,7 +2382,6 @@
unsigned char *data;
struct scsi_cmnd *tmp = NULL, *prev;
int abort = 0;
- NCR5380_setup(instance);
/*
* Disable arbitration, etc. since the host adapter obviously
@@ -2525,10 +2490,8 @@
#ifdef REAL_DMA
static void NCR5380_dma_complete(NCR5380_instance * instance) {
- NCR5380_local_declare();
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
int transferred;
- NCR5380_setup(instance);
/*
* XXX this might not be right.
@@ -2581,7 +2544,6 @@
static int NCR5380_abort(struct scsi_cmnd *cmd)
{
- NCR5380_local_declare();
struct Scsi_Host *instance = cmd->device->host;
struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
struct scsi_cmnd *tmp, **prev;
@@ -2590,8 +2552,6 @@
NCR5380_print_status(instance);
- NCR5380_setup(instance);
-
dprintk(NDEBUG_ABORT, "scsi%d : abort called\n", instance->host_no);
dprintk(NDEBUG_ABORT, " basr 0x%X, sr 0x%X\n", NCR5380_read(BUS_AND_STATUS_REG), NCR5380_read(STATUS_REG));
@@ -2737,8 +2697,6 @@
{
struct Scsi_Host *instance = cmd->device->host;
- NCR5380_local_declare();
- NCR5380_setup(instance);
NCR5380_print_status(instance);
spin_lock_irq(instance->host_lock);