Commit d4a0a0f2 authored by Lukas Bulwahn's avatar Lukas Bulwahn Committed by Martin K. Petersen
Browse files

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

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: default avatarLukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 48517eef

drivers/scsi/wd33c93.c

+0 −60
Original line number Diff line number Diff line
@@ -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)

drivers/scsi/wd33c93.h

+0 −5
Original line number Diff line number Diff line
@@ -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;