diff --git a/sys/compat/linuxkpi/common/include/linux/kernel.h b/sys/compat/linuxkpi/common/include/linux/kernel.h
--- a/sys/compat/linuxkpi/common/include/linux/kernel.h
+++ b/sys/compat/linuxkpi/common/include/linux/kernel.h
@@ -30,6 +30,8 @@
 #ifndef	_LINUXKPI_LINUX_KERNEL_H_
 #define	_LINUXKPI_LINUX_KERNEL_H_
 
+#include "opt_linuxkpi.h"
+
 #include <sys/types.h>
 #include <sys/systm.h>
 #include <sys/param.h>
@@ -169,9 +171,9 @@
 
 /*
  * The "pr_debug()" and "pr_devel()" macros should produce zero code
- * unless DEBUG is defined:
+ * unless LINUXKPI_DEBUG is defined:
  */
-#ifdef DEBUG
+#ifdef LINUXKPI_DEBUG
 extern int linuxkpi_debug;
 #define pr_debug(fmt, ...)					\
 	do {							\
diff --git a/sys/conf/options b/sys/conf/options
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -902,6 +902,9 @@
 TDMA_TXRATE_11NA_DEFAULT	opt_tdma.h
 TDMA_TXRATE_11NG_DEFAULT	opt_tdma.h
 
+# LinuxKPI
+LINUXKPI_DEBUG		opt_linuxkpi.h
+
 # VideoMode
 PICKMODE_DEBUG			opt_videomode.h
 
diff --git a/sys/conf/std.debug b/sys/conf/std.debug
--- a/sys/conf/std.debug
+++ b/sys/conf/std.debug
@@ -17,3 +17,4 @@
 options		ALT_BREAK_TO_DEBUGGER	# Enter debugger on keyboard escape sequence
 options		KDTRACE_MIB_SDT		# Add SDT probes to network counters
 options 	TCP_HPTS_KTEST		# Add KTEST support for HPTS
+options		LINUXKPI_DEBUG		# Add LinuxKPI pr_debug/pr_devel support