[PATCH 02/10] floppy: cleanup: expand macro UFDCS

From: Willy Tarreau
Date: Mon Feb 24 2020 - 16:41:36 EST


This macro doesn't bring much value and only slightly obfuscates the
code by silently using local variable "drive", let's expand it.

Signed-off-by: Willy Tarreau <w@xxxxxx>
---
drivers/block/floppy.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 93e0840..182148a 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -313,7 +313,6 @@ static bool initialized;
#define UDP (&drive_params[drive])
#define UDRS (&drive_state[drive])
#define UDRWE (&write_errors[drive])
-#define UFDCS (&fdc_state[FDC(drive)])

#define PH_HEAD(floppy, head) (((((floppy)->stretch & 2) >> 1) ^ head) << 2)
#define STRETCH(floppy) ((floppy)->stretch & FD_STRETCH)
@@ -3549,7 +3548,7 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
case FDRESET:
return user_reset_fdc(drive, (int)param, true);
case FDGETFDCSTAT:
- outparam = UFDCS;
+ outparam = &fdc_state[FDC(drive)];
break;
case FDWERRORCLR:
memset(UDRWE, 0, sizeof(*UDRWE));
@@ -3833,7 +3832,7 @@ static int compat_getfdcstat(int drive,
struct floppy_fdc_state v;

mutex_lock(&floppy_mutex);
- v = *UFDCS;
+ v = fdc_state[FDC(drive)];
mutex_unlock(&floppy_mutex);

memset(&v32, 0, sizeof(struct compat_floppy_fdc_state));
@@ -4062,8 +4061,8 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
buffer_track = -1;
}

- if (UFDCS->rawcmd == 1)
- UFDCS->rawcmd = 2;
+ if (fdc_state[FDC(drive)].rawcmd == 1)
+ fdc_state[FDC(drive)].rawcmd = 2;

if (!(mode & FMODE_NDELAY)) {
if (mode & (FMODE_READ|FMODE_WRITE)) {
--
2.9.0