Commit:     aebdc3b450a3febf7d7d00cd2235509055ec7082
Parent:     bc37e2830339cbfa42ac8579a7bf62fc4cdd360d
Author:     David Brownell <[EMAIL PROTECTED]>
AuthorDate: Thu Jul 12 22:08:22 2007 -0700
Committer:  Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Wed Jul 18 15:49:50 2007 -0700

    dev_vdbg(), available with -DVERBOSE_DEBUG
    This defines a dev_vdbg() call, which is enabled with -DVERBOSE_DEBUG.
    When enabled, dev_vdbg() acts just like dev_dbg().  When disabled, it is a
    NOP ...  just like dev_dbg() without -DDEBUG.  The specific code was moved
    out of a USB patch, but lots of drivers have similar support.
    That is, code can now be written to use an additional level of debug
    output, selected at compile time.  Many driver authors have found this
    idiom to be very useful.  A typical usage model is for "normal" debug
    messages to focus on fault paths and not be very "chatty", so that those
    messages can be left on during normal operation without much of a
    performance or syslog load.  On the other hand "verbose" messages would be
    noisy enough that they wouldn't normally be enabled; they might even affect
    timings enough to change system or driver behavior.
    Signed-off-by: David Brownell <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
 drivers/usb/core/driver.c |    7 -------
 include/linux/device.h    |   10 ++++++++++
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 73c4936..6548574 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -29,13 +29,6 @@
 #include "hcd.h"
 #include "usb.h"
-#define VERBOSE_DEBUG  0
-#define dev_vdbg       dev_dbg
-#define dev_vdbg(dev, fmt, args...)    do { } while (0)
diff --git a/include/linux/device.h b/include/linux/device.h
index be2debe..d9f0a57 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -572,6 +572,16 @@ dev_dbg(struct device * dev, const char * fmt, ...)
+#define dev_vdbg       dev_dbg
+static inline int __attribute__ ((format (printf, 2, 3)))
+dev_vdbg(struct device * dev, const char * fmt, ...)
+       return 0;
 #define dev_err(dev, format, arg...)           \
        dev_printk(KERN_ERR , dev , format , ## arg)
 #define dev_info(dev, format, arg...)          \
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