diff --git a/Kbuild b/Kbuild
index 2ae27d6ac390..a00554f78472 100644
--- a/Kbuild
+++ b/Kbuild
@@ -312,9 +312,6 @@ ifeq ($(CONFIG_ROME_IF),usb)
 	CONFIG_ATH_11AC_TXCOMPACT := 0
 endif
 
-#Enable OS specific IRQ abstraction
-CONFIG_ATH_SUPPORT_SHARED_IRQ := 1
-
 #Enable message based HIF instead of RAW access in BMI
 ifeq ($(CONFIG_QCA_WIFI_SDIO), 1)
 CONFIG_HIF_MESSAGE_BASED := 0
@@ -2165,11 +2162,6 @@ ifeq ($(CONFIG_ATH_11AC_TXCOMPACT), 1)
 CDEFINES += -DATH_11AC_TXCOMPACT
 endif
 
-#Enable OS specific IRQ abstraction
-ifeq ($(CONFIG_ATH_SUPPORT_SHARED_IRQ), 1)
-CDEFINES += -DATH_SUPPORT_SHARED_IRQ
-endif
-
 #Enable message based HIF instead of RAW access in BMI
 ifeq ($(CONFIG_HIF_MESSAGE_BASED), 1)
 CDEFINES += -DHIF_MESSAGE_BASED