On Wed, May 11, 2011 at 8:24 PM, Greg KH <greg@xxxxxxxxx> wrote: > On Wed, May 11, 2011 at 07:54:57PM +0530, Kishore Kadiyala wrote: >> When reading/writing a subpage (When HW ECC is not available/enabled) >> for number of bytes not aligned to 4, the mis-aligned bytes are handled >> first (by cpu copy method) before enabling the Prefetch engine to/from >> 'p'(start of buffer 'buf'). Then it reads/writes rest of the bytes with >> the help of Prefetch engine, if available, or again using cpu copy method. >> Currently, reading/writing of rest of bytes, is not done correctly since >> its trying to read/write again to/from begining of buffer 'buf', >> overwriting the mis-aligned bytes. >> >> Read & write using prefetch engine got broken in commit '2c01946c'. >> We never hit a scenario of not getting 'gpmc_prefetch_enable' call >> success. So, problem did not get caught up. >> >> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@xxxxxx> >> Signed-off-by: Vimal Singh <vimal.newwork@xxxxxxxxx> >> Reported-by: Bryan DE FARIA <bdefaria@xxxxxxxxxxxxxxxxxxx> >> --- >> drivers/mtd/nand/omap2.c | 12 +++++------- >> 1 files changed, 5 insertions(+), 7 deletions(-) > > > <formletter> > > This is not the correct way to submit patches for inclusion in the > stable kernel tree. Please read Documentation/stable_kernel_rules.txt > for how to do this properly. Ok, will post it properly. Regards, Kishore > > </formletter> > > ______________________________________________________ > Linux MTD discussion mailing list > http://lists.infradead.org/mailman/listinfo/linux-mtd/ > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
