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: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index 3fe5620..e4fafc7 100644 (file)
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -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)

diff --git a/drivers/scsi/wd33c93.h b/drivers/scsi/wd33c93.h
index b3800ba..e5e4254 100644 (file)
--- a/drivers/scsi/wd33c93.h
+++ b/drivers/scsi/wd33c93.h
@@ -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;