On Monday 07 May 2007, David Goodenough wrote:
<snip/>
> I also noticed that I was using a version of Yaffs which was not quite
> up to date, so downloaded the latest version and in there I saw that
> there were two versions of one file which looked relevant.  The file
> in question is yaffs_mtdif2.c, one copy is in the mail fs/yaffs2 directory
> and the other is in a patch directory.  Also in the patch directory is
> a README which contains the following enigmatic paragraph:-
>
> "Right now there is only one patched file, yaffs_mtdif2.c. This has been
> patched with a tweaked version of "Sergey's patch" and typically makes a
> stock mtd work properly."
>
> Having now real history with Yaffs I do not know what Sergey's patch is,
> and whether this version is what I need.  Can anyone suggest whether this
> is relevant to my situation?  If not, can anyone suggest what I should
> do in order to achieve my aim of having something that the boot layer can
> recognise.
>
> David
>
I tried upgrading to the latest Yaffs (from cvs) - no change.  So I thought
I would try the version of yaffs_mtdif2.c in the patches directory, but it 
does not compile.  I get:-

  CC      fs/yaffs2/yaffs_mtdif2.o
fs/yaffs2/yaffs_mtdif2.c: In function 'nandmtd2_pt2buf':
fs/yaffs2/yaffs_mtdif2.c:46: error: 'struct mtd_info' has no member 
named 'oobinfo'
fs/yaffs2/yaffs_mtdif2.c:47: error: 'struct mtd_info' has no member 
named 'oobinfo'
fs/yaffs2/yaffs_mtdif2.c:57: error: 'struct mtd_info' has no member 
named 'oobinfo'
fs/yaffs2/yaffs_mtdif2.c:58: error: 'struct mtd_info' has no member 
named 'oobinfo'
fs/yaffs2/yaffs_mtdif2.c: In function 'nandmtd2_buf2pt':
fs/yaffs2/yaffs_mtdif2.c:84: error: 'struct mtd_info' has no member 
named 'oobinfo'
fs/yaffs2/yaffs_mtdif2.c:85: error: 'struct mtd_info' has no member 
named 'oobinfo'
fs/yaffs2/yaffs_mtdif2.c:95: error: 'struct mtd_info' has no member 
named 'oobinfo'
fs/yaffs2/yaffs_mtdif2.c:96: error: 'struct mtd_info' has no member 
named 'oobinfo'
fs/yaffs2/yaffs_mtdif2.c: In function 'nandmtd2_WriteChunkWithTagsToNAND':
fs/yaffs2/yaffs_mtdif2.c:118: error: 'yaffs_Device' has no member 
named 'nBytesPerChunk'
fs/yaffs2/yaffs_mtdif2.c:134: error: 'struct mtd_info' has no member 
named 'write_ecc'
fs/yaffs2/yaffs_mtdif2.c:134: error: 'yaffs_Device' has no member 
named 'nBytesPerChunk'
fs/yaffs2/yaffs_mtdif2.c: In function 'nandmtd2_ReadChunkWithTagsFromNAND':
fs/yaffs2/yaffs_mtdif2.c:159: error: 'yaffs_Device' has no member 
named 'nBytesPerChunk'
fs/yaffs2/yaffs_mtdif2.c:170: error: 'struct mtd_info' has no member 
named 'read_ecc'
fs/yaffs2/yaffs_mtdif2.c:170: error: 'yaffs_Device' has no member 
named 'nBytesPerChunk'
fs/yaffs2/yaffs_mtdif2.c:177: error: 'yaffs_Device' has no member 
named 'nBytesPerChunk'
fs/yaffs2/yaffs_mtdif2.c:182: warning: passing argument 3 of 'mtd->read_oob' 
makes pointer from integer without a cast
fs/yaffs2/yaffs_mtdif2.c:182: error: too many arguments to 
function 'mtd->read_oob'
fs/yaffs2/yaffs_mtdif2.c: In function 'nandmtd2_MarkNANDBlockBad':
fs/yaffs2/yaffs_mtdif2.c:206: error: 'struct yaffs_DeviceStruct' has no member 
named 'nBytesPerChunk'
fs/yaffs2/yaffs_mtdif2.c: In function 'nandmtd2_QueryNANDBlock':
fs/yaffs2/yaffs_mtdif2.c:226: error: 'struct yaffs_DeviceStruct' has no member 
named 'nBytesPerChunk'
make[7]: *** [fs/yaffs2/yaffs_mtdif2.o] Error 1

Any ideas?

David