高版本linux内核添加yaffs2文件系统支持后编译出错

内核 移植 编译时出现下面的错误无法编译，求解决方法。
fs/yaffs2/yaffs_vfs.c:440: warning: initialization from incompatible pointer type
fs/yaffs2/yaffs_vfs.c:445: warning: initialization from incompatible pointer type
fs/yaffs2/yaffs_vfs.c:447: warning: initialization from incompatible pointer type
fs/yaffs2/yaffs_vfs.c: In function 'yaffs_mtd_put_super':
fs/yaffs2/yaffs_vfs.c:2514: error: 'struct mtd_info' has no member named 'sync'
fs/yaffs2/yaffs_vfs.c:2515: error: 'struct mtd_info' has no member named 'sync'
fs/yaffs2/yaffs_vfs.c: In function 'yaffs_internal_read_super':
fs/yaffs2/yaffs_vfs.c:2702: error: 'struct mtd_info' has no member named 'erase'
fs/yaffs2/yaffs_vfs.c:2703: error: 'struct mtd_info' has no member named 'read'
fs/yaffs2/yaffs_vfs.c:2704: error: 'struct mtd_info' has no member named 'write'
fs/yaffs2/yaffs_vfs.c:2705: error: 'struct mtd_info' has no member named 'read_oob'
fs/yaffs2/yaffs_vfs.c:2706: error: 'struct mtd_info' has no member named 'write_oob'
fs/yaffs2/yaffs_vfs.c:2707: error: 'struct mtd_info' has no member named 'block_isbad'
fs/yaffs2/yaffs_vfs.c:2708: error: 'struct mtd_info' has no member named 'block_markbad'
fs/yaffs2/yaffs_vfs.c:2732: error: 'struct mtd_info' has no member named 'erase'
fs/yaffs2/yaffs_vfs.c:2733: error: 'struct mtd_info' has no member named 'block_isbad'
fs/yaffs2/yaffs_vfs.c:2734: error: 'struct mtd_info' has no member named 'block_markbad'
fs/yaffs2/yaffs_vfs.c:2734: error: 'struct mtd_info' has no member named 'read'
fs/yaffs2/yaffs_vfs.c:2734: error: 'struct mtd_info' has no member named 'write'
fs/yaffs2/yaffs_vfs.c:2736: error: 'struct mtd_info' has no member named 'read_oob'
fs/yaffs2/yaffs_vfs.c:2736: error: 'struct mtd_info' has no member named 'write_oob'
fs/yaffs2/yaffs_vfs.c:2757: error: 'struct mtd_info' has no member named 'erase'
fs/yaffs2/yaffs_vfs.c:2757: error: 'struct mtd_info' has no member named 'read'
fs/yaffs2/yaffs_vfs.c:2757: error: 'struct mtd_info' has no member named 'write'
fs/yaffs2/yaffs_vfs.c:2759: error: 'struct mtd_info' has no member named 'read_oob'
fs/yaffs2/yaffs_vfs.c:2759: error: 'struct mtd_info' has no member named 'write_oob'
fs/yaffs2/yaffs_vfs.c:2967: error: implicit declaration of function 'd_alloc_root'
fs/yaffs2/yaffs_vfs.c:2967: warning: assignment makes pointer from integer without a cast
make[2]: *** [fs/yaffs2/yaffs_vfs.o] 错误 1
make[1]: *** [fs/yaffs2] 错误 2

make: *** [fs] 错误 2

出错解决：

1.需要将mtd下的函数前加下划线，例如mtd->read改为mtd->_read（只有yaffs_vfs.c yaffs_mtdif.c yaffs_mtdif1.c yaffs_mtdif2.c这几个文件会出现这种问题）。

2.查看dache.c中这个函数已经改为了d_make_root，将d_alloc_root改为d_make_root。

3.end_writeback(inode)改成clear_inode(inode)

其它问题可参考http://www.linuxidc.com/Linux/2012-07/64306.htm