And for archival reasons and to those who find this by web search. The thread continued and was resolved here: http://www.aleph1.co.uk/lurker/thread/20130118.023154.73d16d8e.en.html Jarl 2013/1/10 Jarl Friis > This is what I have done: > > > git clone git://kernel.ubuntu.com/ubuntu/ubuntu-quantal.git > git clone git://www.aleph1.co.uk/yaffs2 > cd ubuntu-quantal > git checkout -b 3.5.0-21.32-yaffs2 Ubuntu-3.5.0-21.32 > cd ../yaffs2 > ./patch-ker.sh c m ../ubuntu-quantal/ > cd ../ubuntu-quantal > > Ensured that kernel configuration is OK, i.e. yaffs2 is configured as > module > > then `make` > > At the end it spits out: > CC [M] fs/yaffs2/yaffs_vfs.o > fs/yaffs2/yaffs_vfs.c:438:2: warning: initialization from incompatible > pointer type [enabled by default] > fs/yaffs2/yaffs_vfs.c:438:2: warning: (near initialization for > 'yaffs_dir_inode_operations.create') [enabled by default] > fs/yaffs2/yaffs_vfs.c:443:2: warning: initialization from incompatible > pointer type [enabled by default] > fs/yaffs2/yaffs_vfs.c:443:2: warning: (near initialization for > 'yaffs_dir_inode_operations.mkdir') [enabled by default] > fs/yaffs2/yaffs_vfs.c:445:2: warning: initialization from incompatible > pointer type [enabled by default] > fs/yaffs2/yaffs_vfs.c:445:2: warning: (near initialization for > 'yaffs_dir_inode_operations.mknod') [enabled by default] > fs/yaffs2/yaffs_vfs.c: In function 'yaffs_evict_inode': > fs/yaffs2/yaffs_vfs.c:873:2: error: implicit declaration of function > 'end_writeback' [-Werror=implicit-function-declaration] > fs/yaffs2/yaffs_vfs.c: In function 'yaffs_put_super': > fs/yaffs2/yaffs_vfs.c:2506:16: error: 'struct mtd_info' has no member > named 'sync' > fs/yaffs2/yaffs_vfs.c:2507:6: 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:2699:2: error: 'struct mtd_info' has no member named > 'erase' > fs/yaffs2/yaffs_vfs.c:2700:2: error: 'struct mtd_info' has no member named > 'read' > fs/yaffs2/yaffs_vfs.c:2701:2: error: 'struct mtd_info' has no member named > 'write' > fs/yaffs2/yaffs_vfs.c:2702:2: error: 'struct mtd_info' has no member named > 'read_oob' > fs/yaffs2/yaffs_vfs.c:2703:2: error: 'struct mtd_info' has no member named > 'write_oob' > fs/yaffs2/yaffs_vfs.c:2704:2: error: 'struct mtd_info' has no member named > 'block_isbad' > fs/yaffs2/yaffs_vfs.c:2705:2: error: 'struct mtd_info' has no member named > 'block_markbad' > fs/yaffs2/yaffs_vfs.c:2729:11: error: 'struct mtd_info' has no member > named 'erase' > fs/yaffs2/yaffs_vfs.c:2730:11: error: 'struct mtd_info' has no member > named 'block_isbad' > fs/yaffs2/yaffs_vfs.c:2731:11: error: 'struct mtd_info' has no member > named 'block_markbad' > fs/yaffs2/yaffs_vfs.c:2731:34: error: 'struct mtd_info' has no member > named 'read' > fs/yaffs2/yaffs_vfs.c:2731:48: error: 'struct mtd_info' has no member > named 'write' > fs/yaffs2/yaffs_vfs.c:2733:11: error: 'struct mtd_info' has no member > named 'read_oob' > fs/yaffs2/yaffs_vfs.c:2733:29: error: 'struct mtd_info' has no member > named 'write_oob' > fs/yaffs2/yaffs_vfs.c:2754:11: error: 'struct mtd_info' has no member > named 'erase' > fs/yaffs2/yaffs_vfs.c:2754:26: error: 'struct mtd_info' has no member > named 'read' > fs/yaffs2/yaffs_vfs.c:2754:40: error: 'struct mtd_info' has no member > named 'write' > fs/yaffs2/yaffs_vfs.c:2756:11: error: 'struct mtd_info' has no member > named 'read_oob' > fs/yaffs2/yaffs_vfs.c:2756:29: error: 'struct mtd_info' has no member > named 'write_oob' > fs/yaffs2/yaffs_vfs.c:2946:2: error: implicit declaration of function > 'd_alloc_root' [-Werror=implicit-function-declaration] > fs/yaffs2/yaffs_vfs.c:2946:7: warning: assignment makes pointer from > integer without a cast [enabled by default] > cc1: some warnings being treated as errors > make[2]: *** [fs/yaffs2/yaffs_vfs.o] Error 1 > make[1]: *** [fs/yaffs2] Error 2 > make: *** [fs] Error 2 > > > Jarl > -- Jarl Friis Softace ApS Rådhustorvet 7, 2. 3520 Farum LinkedIn: http://dk.linkedin.com/in/jarlfriis