diff --git a/drivers/iio/adc/ad_pulsar.c b/drivers/iio/adc/ad_pulsar.c
index 1343e1d795e9ae..72848451b76f7c 100644
--- a/drivers/iio/adc/ad_pulsar.c
+++ b/drivers/iio/adc/ad_pulsar.c
@@ -29,11 +29,6 @@
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 
-/* 5.10 compatibility */
-#include <linux/slab.h>
-#define IIO_DMA_MINALIGN		ARCH_KMALLOC_MINALIGN
-/* end 5.10 compatibility */
-
 #define AD_PULSAR_REG_CONFIG		0x00
 
 #define AD7682_NUM_TEMP_CHANNELS	1