Error: File name too long : Building linux-xilinx kernel

hi i m getting the following error, irrespective of the make target

this is just one example with target as clean



droy@m4210-01 ~/linux-xlnx-master $ make ARCH=microblaze clean

scripts/Makefile.clean:17: /home/droy/linux-xlnx-master/drivers/net/ethernet/smsc/Makefile: File name too long
make[4]: stat: /home/droy/linux-xlnx-master/drivers/net/ethernet/smsc/Makefile: File name too long
make[4]: *** No rule to make target `/home/droy/linux-xlnx-master/drivers/net/ethernet/smsc/Makefile'. Stop.
make[3]: *** [drivers/net/ethernet/smsc] Error 2
make[2]: *** [drivers/net/ethernet] Error 2
make[1]: *** [drivers/net] Error 2
make: *** [_clean_drivers] Error 2



additional info

downloaded linux-xilinx kernel from xilinx github

board - ml509 (xupv5lx110t)



this is my first time with linux on fpga´s, so please tell me what i m missing and what can be d