error with “pmem.c” compiling linux source code for android

[Guest Preetam]

I am compiling linux source code for android emulator. i have done all the prerequisites. When i execute make command(for building and cross-compiling the linux source) i get the following error with "pmem.c" file.

root@ubuntu:~# cd common

root@ubuntu:~/common# make

CHK include/linux/version.h

CHK include/linux/utsrelease.h

SYMLINK include/asm -> include/asm-x86

CALL scripts/checksyscalls.sh

CHK include/linux/compile.h

CC drivers/misc/pmem.o

drivers/misc/pmem.c:441: error: conflicting types for ‘phys_mem_access_prot’

/home/preetam/common/arch/x86/include/asm/pgtable.h:383: note: previous declaration of ‘phys_mem_access_prot’ was here

drivers/misc/pmem.c: In function ‘flush_pmem_file’:

drivers/misc/pmem.c:805: error: implicit declaration of function ‘dmac_flush_range’

drivers/misc/pmem.c: In function ‘pmem_setup’:

drivers/misc/pmem.c:1265: error: implicit declaration of function ‘ioremap_cached’

drivers/misc/pmem.c:1266: warning: assignment makes pointer from integer without a cast

make[2]: *** [drivers/misc/pmem.o] Error 1

make[1]: *** [drivers/misc] Error 2

make: *** [drivers] Error 2

root@ubuntu:~/common#

how to resolve this error. It seems that there may some problems in the "pmem.c" file and i'll have to choose different git repository. but that would be a very complex thing, as now i have already done most of the things till here. I might have to see correct version of this file. please someone tell what should i do?

how to solve this errors.

please help..thankyou!