> > +obj-$(CONFIG_BLK_DEV_RNBD_CLIENT) += rnbd-client.o > > +obj-$(CONFIG_BLK_DEV_RNBD_SERVER) += rnbd-server.o > > + > > +-include $(src)/compat/compat.mk > > What is it? > > Thanks quote from Roman "' Well, in our production we use same source code and in order not to spoil sources with 'ifdef' macros for different kernel versions we use compat layer, which obviously will never go upstream. This line is the only clean way to keep sources always up-to-date with latest kernel and still be compatible with what we have on our servers in production. '-' prefix at the beginning of the line tells make to ignore it if file does not exist, so should not rise any error for compilation against latest kernel. Here is an example of the compat layer for RNBD block device: https://github.com/ionos-enterprise/ibnbd/tree/master/rnbd/compat "' We will remove it also the one in the makefile for rtrs if we need to send another round. Thanks
