On Tue, Mar 13, 2018 at 02:08:56PM +0100, Jonas Rabenstein wrote:
> Every step starts with resetting the cmd buffer as well as the comid and
> constructs the appropriate OPAL_CALL command. Consequently, those
> actions may be combined into one generic function.
>
> Signed-off-by: Jonas Rabenstein <jonas.rabenstein@xxxxxxxxxxxxxxxxxxxxxxx>
> ---
> block/sed-opal.c | 243 +++++++++++++++----------------------------------------
> 1 file changed, 63 insertions(+), 180 deletions(-)
>
> diff --git a/block/sed-opal.c b/block/sed-opal.c
> index a228a13f0a08..22dbea7cf4d1 100644
> --- a/block/sed-opal.c
> +++ b/block/sed-opal.c
> @@ -659,6 +659,7 @@ static int cmd_finalize(struct opal_dev *cmd, u32 hsn, u32 tsn)
> struct opal_header *hdr;
> int err = 0;
>
> + add_token_u8(&err, cmd, OPAL_ENDLIST);
> add_token_u8(&err, cmd, OPAL_ENDOFDATA);
> add_token_u8(&err, cmd, OPAL_STARTLIST);
> add_token_u8(&err, cmd, 0);
> @@ -1001,6 +1002,21 @@ static void clear_opal_cmd(struct opal_dev *dev)
> memset(dev->cmd, 0, IO_BUFFER_LENGTH);
> }
>
> +static int start_opal_cmd(struct opal_dev *dev, const u8 *uid, const u8 *method)
> +{
> + int err = 0;
> +
> + clear_opal_cmd(dev);
> + set_comid(dev, dev->comid);
> +
> + add_token_u8(&err, dev, OPAL_CALL);
> + add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH);
> + add_token_bytestring(&err, dev, method, OPAL_METHOD_LENGTH);
> + add_token_u8(&err, dev, OPAL_STARTLIST);
Can you resend this patch (in a bit I'm revewing the rest) with a comment here and
in cmd_finalize explaining that the start_list here gets terminiated by the new
opal_endlist in cmd_finalize.
I'm not a huge fan of having the start/list and end/list in separate functions
since those are used to specify a parameter list for a opal method. I can get over it
since it cleans the code up, as long as there are comments on both sides reminding me
what they're opening/closing off.
