diff --git a/cddl/contrib/opensolaris/lib/libdtrace/common/drti.c b/cddl/contrib/opensolaris/lib/libdtrace/common/drti.c
index 5fab935ee94e..cd9294998454 100644
--- a/cddl/contrib/opensolaris/lib/libdtrace/common/drti.c
+++ b/cddl/contrib/opensolaris/lib/libdtrace/common/drti.c
@@ -65,7 +65,7 @@ extern dof_hdr_t __SUNW_dof;	/* DOF defined in the .SUNW_dof section */
 static boolean_t dof_init_debug = B_FALSE;	/* From DTRACE_DOF_INIT_DEBUG */
 
 static void
-dprintf(int debug, const char *fmt, ...)
+dbg_printf(int debug, const char *fmt, ...)
 {
 	va_list ap;
 
@@ -119,13 +119,13 @@ dtrace_dof_init(void)
 		dof_init_debug = B_TRUE;
 
 	if (dlinfo(RTLD_SELF, RTLD_DI_LINKMAP, &lmp) == -1 || lmp == NULL) {
-		dprintf(1, "couldn't discover module name or address\n");
+		dbg_printf(1, "couldn't discover module name or address\n");
 		return;
 	}
 
 #ifdef illumos
 	if (dlinfo(RTLD_SELF, RTLD_DI_LMID, &lmid) == -1) {
-		dprintf(1, "couldn't discover link map ID\n");
+		dbg_printf(1, "couldn't discover link map ID\n");
 		return;
 	}
 #endif
@@ -139,7 +139,7 @@ dtrace_dof_init(void)
 	    dof->dofh_ident[DOF_ID_MAG1] != DOF_MAG_MAG1 ||
 	    dof->dofh_ident[DOF_ID_MAG2] != DOF_MAG_MAG2 ||
 	    dof->dofh_ident[DOF_ID_MAG3] != DOF_MAG_MAG3) {
-		dprintf(0, ".SUNW_dof section corrupt\n");
+		dbg_printf(0, ".SUNW_dof section corrupt\n");
 		return;
 	}
 
@@ -163,7 +163,7 @@ dtrace_dof_init(void)
 		devnamep = p;
 
 	if ((fd = open64(devnamep, O_RDWR)) < 0) {
-		dprintf(1, "failed to open helper device %s", devnamep);
+		dbg_printf(1, "failed to open helper device %s", devnamep);
 #ifdef illumos
 		/*
 		 * If the device path wasn't explicitly set, try again with
@@ -175,7 +175,7 @@ dtrace_dof_init(void)
 		devnamep = olddevname;
 
 		if ((fd = open64(devnamep, O_RDWR)) < 0) {
-			dprintf(1, "failed to open helper device %s", devnamep);
+			dbg_printf(1, "failed to open helper device %s", devnamep);
 			return;
 		}
 #else
@@ -183,9 +183,9 @@ dtrace_dof_init(void)
 #endif
 	}
 	if ((gen = ioctl(fd, DTRACEHIOC_ADDDOF, &dh)) == -1)
-		dprintf(1, "DTrace ioctl failed for DOF at %p", dof);
+		dbg_printf(1, "DTrace ioctl failed for DOF at %p", dof);
 	else {
-		dprintf(1, "DTrace ioctl succeeded for DOF at %p\n", dof);
+		dbg_printf(1, "DTrace ioctl succeeded for DOF at %p\n", dof);
 #ifdef __FreeBSD__
 		gen = dh.dofhp_gen;
 #endif
@@ -206,14 +206,14 @@ dtrace_dof_fini(void)
 	int fd;
 
 	if ((fd = open64(devnamep, O_RDWR)) < 0) {
-		dprintf(1, "failed to open helper device %s", devnamep);
+		dbg_printf(1, "failed to open helper device %s", devnamep);
 		return;
 	}
 
 	if ((gen = ioctl(fd, DTRACEHIOC_REMOVE, &gen)) == -1)
-		dprintf(1, "DTrace ioctl failed to remove DOF (%d)\n", gen);
+		dbg_printf(1, "DTrace ioctl failed to remove DOF (%d)\n", gen);
 	else
-		dprintf(1, "DTrace ioctl removed DOF (%d)\n", gen);
+		dbg_printf(1, "DTrace ioctl removed DOF (%d)\n", gen);
 
 	(void) close(fd);
 }