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From: "Derrick, Jonathan" <jonathan.derrick@intel.com>
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"zub@linux.fjfi.cvut.cz" <zub@linux.fjfi.cvut.cz>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"sbauer@plzdonthack.me" <sbauer@plzdonthack.me>,
	"axboe@kernel.dk" <axboe@kernel.dk>
Cc: "jonas.rabenstein@studium.uni-erlangen.de" 
	<jonas.rabenstein@studium.uni-erlangen.de>
Subject: Re: [PATCH v4 04/16] block: sed-opal: close parameter list in cmd_finalize
Date: Fri, 8 Feb 2019 22:57:31 +0000	[thread overview]
Message-ID: <1549666649.10972.52.camel@intel.com> (raw)
In-Reply-To: <1549054223-12220-5-git-send-email-zub@linux.fjfi.cvut.cz>

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Normally I wouldn't like decreasing the readability (having a STARTLIST
without an ENDLIST in the same function), but this makes a lot of sense
with 5/16

Acked-by: Jon Derrick <jonathan.derrick@intel.com>

On Fri, 2019-02-01 at 21:50 +0100, David Kozub wrote:
> Every step ends by calling cmd_finalize (via finalize_and_send)
> yet every step adds the token OPAL_ENDLIST on its own. Moving
> this into cmd_finalize decreases code duplication.
> 
> Co-authored-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
> Signed-off-by: David Kozub <zub@linux.fjfi.cvut.cz>
> Signed-off-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
> Reviewed-by: Scott Bauer <sbauer@plzdonthack.me>
> ---
>  block/sed-opal.c | 25 +++----------------------
>  1 file changed, 3 insertions(+), 22 deletions(-)
> 
> diff --git a/block/sed-opal.c b/block/sed-opal.c
> index 980705681806..35b1747b650f 100644
> --- a/block/sed-opal.c
> +++ b/block/sed-opal.c
> @@ -661,6 +661,9 @@ static int cmd_finalize(struct opal_dev *cmd, u32 hsn, u32 tsn)
>  	struct opal_header *hdr;
>  	int err = 0;
>  
> +	/* close parameter list */
> +	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);
> @@ -1079,7 +1082,6 @@ static int gen_key(struct opal_dev *dev, void *data)
>  	add_token_bytestring(&err, dev, opalmethod[OPAL_GENKEY],
>  			     OPAL_UID_LENGTH);
>  	add_token_u8(&err, dev, OPAL_STARTLIST);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
>  		pr_debug("Error building gen key command\n");
> @@ -1142,7 +1144,6 @@ static int get_active_key(struct opal_dev *dev, void *data)
>  	add_token_u8(&err, dev, 10); /* ActiveKey */
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	if (err) {
>  		pr_debug("Error building get active key command\n");
>  		return err;
> @@ -1188,7 +1189,6 @@ static int generic_lr_enable_disable(struct opal_dev *dev,
>  
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	return err;
>  }
>  
> @@ -1254,8 +1254,6 @@ static int setup_locking_range(struct opal_dev *dev, void *data)
>  
>  		add_token_u8(&err, dev, OPAL_ENDLIST);
>  		add_token_u8(&err, dev, OPAL_ENDNAME);
> -		add_token_u8(&err, dev, OPAL_ENDLIST);
> -
>  	}
>  	if (err) {
>  		pr_debug("Error building Setup Locking range command.\n");
> @@ -1295,7 +1293,6 @@ static int start_generic_opal_session(struct opal_dev *dev,
>  
>  	switch (auth) {
>  	case OPAL_ANYBODY_UID:
> -		add_token_u8(&err, dev, OPAL_ENDLIST);
>  		break;
>  	case OPAL_ADMIN1_UID:
>  	case OPAL_SID_UID:
> @@ -1308,7 +1305,6 @@ static int start_generic_opal_session(struct opal_dev *dev,
>  		add_token_bytestring(&err, dev, opaluid[auth],
>  				     OPAL_UID_LENGTH);
>  		add_token_u8(&err, dev, OPAL_ENDNAME);
> -		add_token_u8(&err, dev, OPAL_ENDLIST);
>  		break;
>  	default:
>  		pr_debug("Cannot start Admin SP session with auth %d\n", auth);
> @@ -1406,7 +1402,6 @@ static int start_auth_opal_session(struct opal_dev *dev, void *data)
>  	add_token_u8(&err, dev, 3);
>  	add_token_bytestring(&err, dev, lk_ul_user, OPAL_UID_LENGTH);
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
>  		pr_debug("Error building STARTSESSION command.\n");
> @@ -1429,7 +1424,6 @@ static int revert_tper(struct opal_dev *dev, void *data)
>  	add_token_bytestring(&err, dev, opalmethod[OPAL_REVERT],
>  			     OPAL_UID_LENGTH);
>  	add_token_u8(&err, dev, OPAL_STARTLIST);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	if (err) {
>  		pr_debug("Error building REVERT TPER command.\n");
>  		return err;
> @@ -1463,7 +1457,6 @@ static int internal_activate_user(struct opal_dev *dev, void *data)
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
>  		pr_debug("Error building Activate UserN command.\n");
> @@ -1490,7 +1483,6 @@ static int erase_locking_range(struct opal_dev *dev, void *data)
>  	add_token_bytestring(&err, dev, opalmethod[OPAL_ERASE],
>  			     OPAL_UID_LENGTH);
>  	add_token_u8(&err, dev, OPAL_STARTLIST);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
>  		pr_debug("Error building Erase Locking Range Command.\n");
> @@ -1521,7 +1513,6 @@ static int set_mbr_done(struct opal_dev *dev, void *data)
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
>  		pr_debug("Error Building set MBR Done command\n");
> @@ -1553,7 +1544,6 @@ static int set_mbr_enable_disable(struct opal_dev *dev, void *data)
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
>  		pr_debug("Error Building set MBR done command\n");
> @@ -1585,7 +1575,6 @@ static int generic_pw_cmd(u8 *key, size_t key_len, u8 *cpin_uid,
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	return err;
>  }
> @@ -1694,7 +1683,6 @@ static int add_user_to_lr(struct opal_dev *dev, void *data)
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
>  		pr_debug("Error building add user to locking range command.\n");
> @@ -1755,7 +1743,6 @@ static int lock_unlock_locking_range(struct opal_dev *dev, void *data)
>  
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
>  		pr_debug("Error building SET command.\n");
> @@ -1843,11 +1830,8 @@ static int activate_lsp(struct opal_dev *dev, void *data)
>  		}
>  		add_token_u8(&err, dev, OPAL_ENDLIST);
>  		add_token_u8(&err, dev, OPAL_ENDNAME);
> -		add_token_u8(&err, dev, OPAL_ENDLIST);
> -
>  	} else {
>  		add_token_u8(&err, dev, OPAL_STARTLIST);
> -		add_token_u8(&err, dev, OPAL_ENDLIST);
>  	}
>  
>  	if (err) {
> @@ -1904,7 +1888,6 @@ static int get_lsp_lifecycle(struct opal_dev *dev, void *data)
>  	add_token_u8(&err, dev, 6); /* Lifecycle Column */
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
>  
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {
> @@ -1964,8 +1947,6 @@ static int get_msid_cpin_pin(struct opal_dev *dev, void *data)
>  	add_token_u8(&err, dev, 4); /* End Column */
>  	add_token_u8(&err, dev, 3); /* Lifecycle Column */
>  	add_token_u8(&err, dev, OPAL_ENDNAME);
> -
> -	add_token_u8(&err, dev, OPAL_ENDLIST);
>  	add_token_u8(&err, dev, OPAL_ENDLIST);
>  
>  	if (err) {

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  parent reply	other threads:[~2019-02-08 22:57 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-01 20:50 [PATCH v4 00/16] block: sed-opal: support shadow MBR done flag and write David Kozub
2019-02-01 20:50 ` [PATCH v4 01/16] block: sed-opal: fix typos and formatting David Kozub
2019-02-04 14:42   ` Christoph Hellwig
2019-02-04 20:28     ` David Kozub
2019-02-08 22:56       ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 02/16] block: sed-opal: use correct macro for method length David Kozub
2019-02-04 14:43   ` Christoph Hellwig
2019-02-08 22:56   ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 03/16] block: sed-opal: unify space check in add_token_* David Kozub
2019-02-04 14:44   ` Christoph Hellwig
2019-02-04 21:07     ` David Kozub
2019-02-04 21:09       ` Christoph Hellwig
2019-02-08 22:57       ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 04/16] block: sed-opal: close parameter list in cmd_finalize David Kozub
2019-02-04 14:44   ` Christoph Hellwig
2019-02-08 22:57   ` Derrick, Jonathan [this message]
2019-02-01 20:50 ` [PATCH v4 05/16] block: sed-opal: unify cmd start David Kozub
2019-02-04 14:45   ` Christoph Hellwig
2019-02-08 22:57   ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 06/16] block: sed-opal: unify error handling of responses David Kozub
2019-02-04 14:45   ` Christoph Hellwig
2019-02-01 20:50 ` [PATCH v4 07/16] block: sed-opal: reuse response_get_token to decrease code duplication David Kozub
2019-02-04 14:46   ` Christoph Hellwig
2019-02-08 22:57   ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 08/16] block: sed-opal: print failed function address David Kozub
2019-02-04 14:46   ` Christoph Hellwig
2019-02-01 20:50 ` [PATCH v4 09/16] block: sed-opal: split generation of bytestring header and content David Kozub
2019-02-04 14:48   ` Christoph Hellwig
2019-02-08 22:58   ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 10/16] block: sed-opal: add ioctl for done-mark of shadow mbr David Kozub
2019-02-04 14:52   ` Christoph Hellwig
2019-02-07 22:56     ` David Kozub
2019-02-08  0:44       ` Derrick, Jonathan
2019-02-08  1:37         ` Scott Bauer
2019-02-10 18:26         ` Scott Bauer
2019-02-10 20:25           ` David Kozub
2019-02-01 20:50 ` [PATCH v4 11/16] block: sed-opal: ioctl for writing to " David Kozub
2019-02-04 17:58   ` kbuild test robot
2019-02-08 22:58   ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 12/16] block: sed-opal: unify retrieval of table columns David Kozub
2019-02-04 14:56   ` Christoph Hellwig
2019-02-08 22:58   ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 13/16] block: sed-opal: check size of shadow mbr David Kozub
2019-02-08 22:58   ` Derrick, Jonathan
2019-02-10 20:05     ` David Kozub
2019-02-11 21:27       ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 14/16] block: sed-opal: pass steps via argument rather than via opal_dev David Kozub
2019-02-04 14:57   ` Christoph Hellwig
2019-02-01 20:50 ` [PATCH v4 15/16] block: sed-opal: don't repeat opal_discovery0 in each steps array David Kozub
2019-02-04 15:01   ` Christoph Hellwig
2019-02-04 22:44     ` David Kozub
2019-02-08 22:59       ` Derrick, Jonathan
2019-02-10 17:46         ` David Kozub
2019-02-11 17:22           ` Derrick, Jonathan
2019-02-01 20:50 ` [PATCH v4 16/16] block: sed-opal: rename next to execute_steps David Kozub
2019-02-04 15:01   ` Christoph Hellwig
2019-02-08 22:59   ` Derrick, Jonathan
2019-02-04  8:55 ` David Kozub
2019-02-04  9:44 ` [PATCH v4 00/16] block: sed-opal: support shadow MBR done flag and write David Kozub
2019-02-04 15:04 ` Christoph Hellwig
2019-02-04 15:36   ` Scott Bauer
2019-02-04 15:44     ` Christoph Hellwig
2019-02-04 23:06   ` David Kozub
2019-02-05  6:57     ` Christoph Hellwig

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