Hi All, Currently I am upgrading kernel on my embedded system. I would like to use the linux kernel version v3.16.61. I uplouded linux kernel from kernel.org and added the yaffs from: git clone git://www.aleph1.co.uk/yaffs2 During compiling I have got the following errors. [cid:image001.jpg@01D49B90.1D556A80] List of output: CHK include/generated/compile.h CALL arch/powerpc/kernel/systbl_chk.sh CC fs/yaffs2/yaffs_vfs.o fs/yaffs2/yaffs_vfs.c:270:19: error: static declaration of 'setattr_prepare' follows non-static declaration include/linux/fs.h:2636:12: note: previous declaration of 'setattr_prepare' was here fs/yaffs2/yaffs_vfs.c: In function 'setattr_prepare': fs/yaffs2/yaffs_vfs.c:272:2: error: implicit declaration of function 'inode_change_ok' [-Werror=implicit-function-declaration] fs/yaffs2/yaffs_vfs.c: At top level: fs/yaffs2/yaffs_vfs.c:1063:2: warning: initialization from incompatible pointer type [enabled by default] fs/yaffs2/yaffs_vfs.c:1063:2: warning: (near initialization for 'yaffs_file_inode_operations.getxattr') [enabled by default] fs/yaffs2/yaffs_vfs.c:1192:2: warning: initialization from incompatible pointer type [enabled by default] fs/yaffs2/yaffs_vfs.c:1192:2: warning: (near initialization for 'yaffs_symlink_inode_operations.getxattr') [enabled by default] fs/yaffs2/yaffs_vfs.c:1674:2: warning: initialization from incompatible pointer type [enabled by default] fs/yaffs2/yaffs_vfs.c:1674:2: warning: (near initialization for 'yaffs_dir_inode_operations.getxattr') [enabled by default] cc1: some warnings being treated as errors make[2]: *** [fs/yaffs2/yaffs_vfs.o] οΫΙΒΛΑ 1 make[1]: *** [fs/yaffs2] οΫΙΒΛΑ 2 make: *** [fs] οΫΙΒΛΑ 2 root@debian:/opt/eldk-5.1/powerpc-4xx/Builds/linux-3.16.61# Could you please help me to resolve these issues. Thanks, Alexander