diff --git a/kmod/src/Makefile.kernelcompat b/kmod/src/Makefile.kernelcompat
index 2682cc03..8b76ab1b 100644
--- a/kmod/src/Makefile.kernelcompat
+++ b/kmod/src/Makefile.kernelcompat
@@ -92,16 +92,6 @@ ifneq (,$(shell grep 'bi_status' include/linux/blk_types.h))
 ccflags-y += -DKC_BIO_BI_STATUS
 endif
 
-#
-# v3.19-4777-g6bec00352861
-#
-# backing_dev_info is removed from address_space. Instead we need to use
-# inode_to_bdi() inline from <backing-dev.h>.
-#
-ifneq (,$(shell grep 'struct backing_dev_info.*backing_dev_info' include/linux/fs.h))
-ccflags-y += -DKC_LINUX_BACKING_DEV_INFO=1
-endif
-
 #
 # v4.3-9290-ge409de992e3e
 #