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scsi: wd33c93: Remove dead code related to the long-gone config WD33C93_PIO

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The historical commit 5e018f7e60c9 ("Remove PC9800 support") from 2004 in
linux's history.git removed the config WD33C93_PIO to tweak the scsi
wd33c93 driver for the PC9800.

Some dead code in drivers/scsi/wd33c93.[ch] under an ifdef WD33C93_PIO
continued to remain in the repository until now.

Remove this dead code.

This issue was discovered with ./scripts/checkkconfigsymbols.py.

Link: https://lore.kernel.org/r/20220920112921.25275-1-lukas.bulwahn@gmail.com
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Lukas Bulwahn 2022-09-20 13:29:21 +02:00 committed by Martin K. Petersen
parent 48517eefb2
commit d4a0a0f2c8
2 changed files with 0 additions and 65 deletions
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60
drivers/scsi/wd33c93.c
View File

@ -162,65 +162,6 @@ module_param(setup_strings, charp, 0);
static void wd33c93_execute(struct Scsi_Host *instance);
#ifdef CONFIG_WD33C93_PIO
static inline uchar
read_wd33c93(const wd33c93_regs regs, uchar reg_num)
{
uchar data;
outb(reg_num, regs.SASR);
data = inb(regs.SCMD);
return data;
}
static inline unsigned long
read_wd33c93_count(const wd33c93_regs regs)
{
unsigned long value;
outb(WD_TRANSFER_COUNT_MSB, regs.SASR);
value = inb(regs.SCMD) << 16;
value |= inb(regs.SCMD) << 8;
value |= inb(regs.SCMD);
return value;
}
static inline uchar
read_aux_stat(const wd33c93_regs regs)
{
return inb(regs.SASR);
}
static inline void
write_wd33c93(const wd33c93_regs regs, uchar reg_num, uchar value)
{
outb(reg_num, regs.SASR);
outb(value, regs.SCMD);
}
static inline void
write_wd33c93_count(const wd33c93_regs regs, unsigned long value)
{
outb(WD_TRANSFER_COUNT_MSB, regs.SASR);
outb((value >> 16) & 0xff, regs.SCMD);
outb((value >> 8) & 0xff, regs.SCMD);
outb( value & 0xff, regs.SCMD);
}
#define write_wd33c93_cmd(regs, cmd) \
write_wd33c93((regs), WD_COMMAND, (cmd))
static inline void
write_wd33c93_cdb(const wd33c93_regs regs, uint len, uchar cmnd[])
{
int i;
outb(WD_CDB_1, regs.SASR);
for (i=0; i<len; i++)
outb(cmnd[i], regs.SCMD);
}
#else /* CONFIG_WD33C93_PIO */
static inline uchar
read_wd33c93(const wd33c93_regs regs, uchar reg_num)
{
@ -287,7 +228,6 @@ write_wd33c93_cdb(const wd33c93_regs regs, uint len, uchar cmnd[])
for (i = 0; i < len; i++)
*regs.SCMD = cmnd[i];
}
#endif /* CONFIG_WD33C93_PIO */
static inline uchar
read_1_byte(const wd33c93_regs regs)

5
drivers/scsi/wd33c93.h
View File

@ -180,13 +180,8 @@
/* This is what the 3393 chip looks like to us */
typedef struct {
#ifdef CONFIG_WD33C93_PIO
unsigned int SASR;
unsigned int SCMD;
#else
volatile unsigned char *SASR;
volatile unsigned char *SCMD;
#endif
} wd33c93_regs;