diff -aur ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/dahdi-base.c ./drivers/dahdi/dahdi-base.c
--- ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/dahdi-base.c	2014-09-23 02:40:19.000000000 +0800
+++ ./drivers/dahdi/dahdi-base.c	2015-04-08 15:08:14.884476440 +0800
@@ -98,7 +98,11 @@
 #define chan_to_netdev(h) ((h)->hdlcnetdev->netdev)
 
 /* macro-oni for determining a unit (channel) number */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0)
 #define	UNIT(file) MINOR(file->f_dentry->d_inode->i_rdev)
+#else
+#define	UNIT(file) MINOR(file->f_path.dentry->d_inode->i_rdev)
+#endif
 
 EXPORT_SYMBOL(dahdi_transcode_fops);
 EXPORT_SYMBOL(dahdi_init_tone_state);
diff -aur ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/wcaxx-base.c ./drivers/dahdi/wcaxx-base.c
--- ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/wcaxx-base.c	2014-09-23 02:40:19.000000000 +0800
+++ ./drivers/dahdi/wcaxx-base.c	2015-04-08 15:08:14.885476464 +0800
@@ -3823,7 +3823,11 @@
 	unsigned long flags;
 
 	clear_bit(INITIALIZED, &wc->bit_flags);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
 	smp_mb__after_clear_bit();
+#else
+	smp_mb__before_atomic();
+#endif
 
 	/* Make sure we're not on the card list anymore. */
 	mutex_lock(&card_list_lock);
diff -aur ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/wcte12xp/base.c ./drivers/dahdi/wcte12xp/base.c
--- ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/wcte12xp/base.c	2014-09-23 02:40:19.000000000 +0800
+++ ./drivers/dahdi/wcte12xp/base.c	2015-04-08 15:08:14.886476488 +0800
@@ -2110,7 +2110,11 @@
 	 * them. */
 	clear_bit(INITIALIZED, &wc->bit_flags);
 	synchronize_irq(wc->vb.pdev->irq);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
 	smp_mb__after_clear_bit();
+#else
+	smp_mb__before_atomic();
+#endif
 	del_timer_sync(&wc->timer);
 	flush_workqueue(wc->wq);
 
@@ -3076,7 +3080,11 @@
 	remove_sysfs_files(wc);
 
 	clear_bit(INITIALIZED, &wc->bit_flags);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
 	smp_mb__after_clear_bit();
+#else
+	smp_mb__before_atomic();
+#endif
 
 	del_timer_sync(&wc->timer);
 	flush_workqueue(wc->wq);
diff -aur ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/wcte13xp-base.c ./drivers/dahdi/wcte13xp-base.c
--- ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/wcte13xp-base.c	2014-09-23 02:40:19.000000000 +0800
+++ ./drivers/dahdi/wcte13xp-base.c	2015-04-08 15:08:14.887476512 +0800
@@ -1849,7 +1849,11 @@
 	clear_bit(INITIALIZED, &wc->bit_flags);
 	disable_irq(wc->xb.pdev->irq);
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
 	smp_mb__after_clear_bit();
+#else
+	smp_mb__before_atomic();
+#endif
 	del_timer_sync(&wc->timer);
 	flush_workqueue(wc->wq);
 
@@ -2725,7 +2729,11 @@
 		return;
 
 	clear_bit(INITIALIZED, &wc->bit_flags);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
 	smp_mb__after_clear_bit();
+#else
+	smp_mb__before_atomic();
+#endif
 
 	/* Quiesce DMA engine interrupts */
 	wcxb_stop(&wc->xb);
diff -aur ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/wcte43x-base.c ./drivers/dahdi/wcte43x-base.c
--- ../../dahdi-linux-complete-2.10.0.1+2.10.0.1/linux/drivers/dahdi/wcte43x-base.c	2014-09-23 02:40:19.000000000 +0800
+++ ./drivers/dahdi/wcte43x-base.c	2015-04-08 15:08:14.888476536 +0800
@@ -3581,7 +3581,11 @@
 		return;
 
 	wc->not_ready = 1;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
 	smp_mb__after_clear_bit();
+#else
+	smp_mb__before_atomic();
+#endif
 
 	/* Stop everything */
 	wcxb_stop(&wc->xb);