ifdebug 57 include/linux/sunrpc/debug.h # define dfprintk(fac, args...) do { ifdebug(fac) printk(args); } while(0) ifdebug 1229 net/sunrpc/cache.c ifdebug(CACHE) ifdebug 567 net/sunrpc/xprtrdma/rpc_rdma.c ifdebug(FACILITY) {