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SubjectRe: [PATCH] mtd: nand: fix ONFI parameter page layout
On Mon, Nov 23, 2015 at 11:23:07AM +0100, Boris Brezillon wrote:
> src_ssync_features field is only 1 byte large, and the 4th reserved area
> is actually 8 bytes large.
>
> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
> Fixes d1e1f4e42b5 ("mtd: nand: add support for reading ONFI parameters from NAND device")
> Cc: <stable@vger.kernel.org> #v2.6.37+

Did you see an actual problem from this? (And is this deserving of
stable?) I could imagine an out-of-tree driver might try to use t_ald
(which should actually be t_adl, right?) and get the wrong value. But no
one does that in-tree yet.

> ---
> include/linux/mtd/nand.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
> index 5a9d1d4..93fc372 100644
> --- a/include/linux/mtd/nand.h
> +++ b/include/linux/mtd/nand.h
> @@ -276,7 +276,7 @@ struct nand_onfi_params {
> __le16 t_r;
> __le16 t_ccs;
> __le16 src_sync_timing_mode;
> - __le16 src_ssync_features;
> + u8 src_ssync_features;
> __le16 clk_pin_capacitance_typ;
> __le16 io_pin_capacitance_typ;
> __le16 input_pin_capacitance_typ;
> @@ -284,7 +284,7 @@ struct nand_onfi_params {
> u8 driver_strength_support;
> __le16 t_int_r;
> __le16 t_ald;
> - u8 reserved4[7];
> + u8 reserved4[8];
>
> /* vendor */
> __le16 vendor_revision;

Patch looks good.

Brian


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