drivers/block/floppy.c: add debug_dcl(...) macro

[safe/jmp/linux-2.6] / drivers / block / floppy.c

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 50bd9e9..41f3663 100644 (file)
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -152,6 +152,15 @@
 #define DEBUGT 2
 #define DCL_DEBUG              /* debug disk change line */
 
+#ifdef DCL_DEBUG
+#define debug_dcl(test, fmt, args...) \
+       do { if ((test) & FD_DEBUG) DPRINT(fmt, ##args); } while (0)
+#else
+#define debug_dcl(test, fmt, args...) \
+       do { if (0) DPRINT(fmt, ##args); } while (0)
+#endif
+
+
 /* do print messages for unexpected interrupts */
 static int print_unex = 1;
 #include <linux/module.h>
@@ -748,14 +757,12 @@ static int disk_change(int drive)
        }
 #endif
 
-#ifdef DCL_DEBUG
-       if (UDP->flags & FD_DEBUG) {
-               DPRINT("checking disk change line for drive %d\n", drive);
-               DPRINT("jiffies=%lu\n", jiffies);
-               DPRINT("disk change line=%x\n", fd_inb(FD_DIR) & 0x80);
-               DPRINT("flags=%lx\n", UDRS->flags);
-       }
-#endif
+       debug_dcl(UDP->flags,
+                 "checking disk change line for drive %d\n", drive);
+       debug_dcl(UDP->flags, "jiffies=%lu\n", jiffies);
+       debug_dcl(UDP->flags, "disk change line=%x\n", fd_inb(FD_DIR) & 0x80);
+       debug_dcl(UDP->flags, "flags=%lx\n", UDRS->flags);
+
        if (UDP->flags & FD_BROKEN_DCL)
                return UTESTF(FD_DISK_CHANGED);
        if ((fd_inb(FD_DIR) ^ UDP->flags) & 0x80) {
@@ -804,10 +811,8 @@ static int set_dor(int fdc, char mask, char data)
                unit = olddor & 0x3;
                if (is_selected(olddor, unit) && !is_selected(newdor, unit)) {
                        drive = REVDRIVE(fdc, unit);
-#ifdef DCL_DEBUG
-                       if (UDP->flags & FD_DEBUG)
-                               DPRINT("calling disk change from set_dor\n");
-#endif
+                       debug_dcl(UDP->flags,
+                                 "calling disk change from set_dor\n");
                        disk_change(drive);
                }
                FDCS->dor = newdor;
@@ -1020,10 +1025,7 @@ static void cancel_activity(void)
  * transfer */
 static void fd_watchdog(void)
 {
-#ifdef DCL_DEBUG
-       if (DP->flags & FD_DEBUG)
-               DPRINT("calling disk change from watchdog\n");
-#endif
+       debug_dcl(DP->flags, "calling disk change from watchdog\n");
 
        if (disk_change(current_drive)) {
                DPRINT("disk removed during i/o\n");
@@ -1582,12 +1584,9 @@ static void seek_interrupt(void)
                return;
        }
        if (DRS->track >= 0 && DRS->track != ST1 && !blind_seek) {
-#ifdef DCL_DEBUG
-               if (DP->flags & FD_DEBUG) {
-                       DPRINT("clearing NEWCHANGE flag because of effective seek\n");
-                       DPRINT("jiffies=%lu\n", jiffies);
-               }
-#endif
+               debug_dcl(DP->flags,
+                         "clearing NEWCHANGE flag because of effective seek\n");
+               debug_dcl(DP->flags, "jiffies=%lu\n", jiffies);
                CLEARF(FD_DISK_NEWCHANGE);      /* effective seek */
                DRS->select_date = jiffies;
        }
@@ -1607,12 +1606,9 @@ static void check_wp(void)
                }
                CLEARF(FD_VERIFY);
                CLEARF(FD_NEED_TWADDLE);
-#ifdef DCL_DEBUG
-               if (DP->flags & FD_DEBUG) {
-                       DPRINT("checking whether disk is write protected\n");
-                       DPRINT("wp=%x\n", ST3 & 0x40);
-               }
-#endif
+               debug_dcl(DP->flags,
+                         "checking whether disk is write protected\n");
+               debug_dcl(DP->flags, "wp=%x\n", ST3 & 0x40);
                if (!(ST3 & 0x40))
                        SETF(FD_DISK_WRITABLE);
                else
@@ -1626,10 +1622,7 @@ static void seek_floppy(void)
 
        blind_seek = 0;
 
-#ifdef DCL_DEBUG
-       if (DP->flags & FD_DEBUG)
-               DPRINT("calling disk change from seek\n");
-#endif
+       debug_dcl(DP->flags, "calling disk change from seek\n");
 
        if (!TESTF(FD_DISK_NEWCHANGE) &&
            disk_change(current_drive) && (raw_cmd->flags & FD_RAW_NEED_DISK)) {
@@ -1705,10 +1698,8 @@ static void recal_interrupt(void)
                         * not to move at recalibration is to
                         * be already at track 0.) Clear the
                         * new change flag */
-#ifdef DCL_DEBUG
-                       if (DP->flags & FD_DEBUG)
-                               DPRINT("clearing NEWCHANGE flag because of second recalibrate\n");
-#endif
+                       debug_dcl(DP->flags,
+                                 "clearing NEWCHANGE flag because of second recalibrate\n");
 
                        CLEARF(FD_DISK_NEWCHANGE);
                        DRS->select_date = jiffies;
@@ -1968,10 +1959,7 @@ static void floppy_ready(void)
        if (fdc_dtr())
                return;
 
-#ifdef DCL_DEBUG
-       if (DP->flags & FD_DEBUG)
-               DPRINT("calling disk change from floppy_ready\n");
-#endif
+       debug_dcl(DP->flags, "calling disk change from floppy_ready\n");
        if (!(raw_cmd->flags & FD_RAW_NO_MOTOR) &&
            disk_change(current_drive) && !DP->select_delay)
                twaddle();      /* this clears the dcl on certain
@@ -2002,10 +1990,7 @@ static void floppy_start(void)
        reschedule_timeout(current_reqD, "floppy start", 0);
 
        scandrives();
-#ifdef DCL_DEBUG
-       if (DP->flags & FD_DEBUG)
-               DPRINT("setting NEWCHANGE in floppy_start\n");
-#endif
+       debug_dcl(DP->flags, "setting NEWCHANGE in floppy_start\n");
        SETF(FD_DISK_NEWCHANGE);
        floppy_ready();
 }
@@ -3024,10 +3009,7 @@ static int poll_drive(int interruptible, int flag)
        raw_cmd->track = 0;
        raw_cmd->cmd_count = 0;
        cont = &poll_cont;
-#ifdef DCL_DEBUG
-       if (DP->flags & FD_DEBUG)
-               DPRINT("setting NEWCHANGE in poll_drive\n");
-#endif
+       debug_dcl(DP->flags, "setting NEWCHANGE in poll_drive\n");
        SETF(FD_DISK_NEWCHANGE);
        WAIT(floppy_ready);
        return ret;
@@ -3290,10 +3272,7 @@ static int raw_cmd_ioctl(int cmd, void __user *param)
        raw_cmd = my_raw_cmd;
        cont = &raw_cmd_cont;
        ret = wait_til_done(floppy_start, 1);
-#ifdef DCL_DEBUG
-       if (DP->flags & FD_DEBUG)
-               DPRINT("calling disk change from raw_cmd ioctl\n");
-#endif
+       debug_dcl(DP->flags, "calling disk change from raw_cmd ioctl\n");
 
        if (ret != -EINTR && FDCS->reset)
                ret = -EIO;