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| author | Finn Thain <fthain@telegraphics.com.au> | 2016-01-03 16:05:06 +1100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-01-06 21:42:52 -0500 |
| commit | 54d8fe4425c9d3fdf8473c1833c6807b61c6e70e (patch) | |
| tree | 7f6597bc2f7277fa2f04496f814372413177d23d /drivers/scsi/dtc.h | |
| parent | c0965e6371fa50fdf5cc2291915de97412fb1ec9 (diff) | |
| download | linux-54d8fe4425c9d3fdf8473c1833c6807b61c6e70e.tar.bz2 | |
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>
Diffstat (limited to 'drivers/scsi/dtc.h')
| -rw-r--r-- | drivers/scsi/dtc.h | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/scsi/dtc.h b/drivers/scsi/dtc.h index 46483b280046..07b0ac98817c 100644 --- a/drivers/scsi/dtc.h +++ b/drivers/scsi/dtc.h @@ -21,13 +21,8 @@ #define NCR5380_implementation_fields \ void __iomem *base -#define NCR5380_local_declare() \ - void __iomem *base - -#define NCR5380_setup(instance) \ - base = ((struct NCR5380_hostdata *)(instance)->hostdata)->base - -#define DTC_address(reg) (base + DTC_5380_OFFSET + reg) +#define DTC_address(reg) \ + (((struct NCR5380_hostdata *)shost_priv(instance))->base + DTC_5380_OFFSET + reg) #define NCR5380_read(reg) (readb(DTC_address(reg))) #define NCR5380_write(reg, value) (writeb(value, DTC_address(reg))) |