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* [linux-next:master 2228/3296] drivers/md/dm-raid.c:3686 raid_status() error: uninitialized symbol 'recovery'.
@ 2021-07-26 13:11 Dan Carpenter
  0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2021-07-26 13:11 UTC (permalink / raw)
  To: kbuild, Tushar Sugandhi
  Cc: lkp, kbuild-all, Linux Memory Management List, Mike Snitzer

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   90d856e71443a2fcacca8e7539bac44d9cb3f7ab
commit: fdac9de80c2e66d6df999ac810382c66b0cb2830 [2228/3296] dm: update target status functions to support IMA measurement
config: x86_64-randconfig-m001-20210724 (attached as .config)
compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

New smatch warnings:
drivers/md/dm-raid.c:3686 raid_status() error: uninitialized symbol 'recovery'.

Old smatch warnings:
drivers/md/dm-raid.c:1336 parse_raid_params() warn: potential spectre issue 'rs->dev' [w]

vim +/recovery +3686 drivers/md/dm-raid.c

3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3510  static void raid_status(struct dm_target *ti, status_type_t type,
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3511  			unsigned int status_flags, char *result, unsigned int maxlen)
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3512  {
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3513  	struct raid_set *rs = ti->private;
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3514  	struct mddev *mddev = &rs->md;
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3515  	struct r5conf *conf = mddev->private;
7a7c330fc26652 Heinz Mauelshagen     2016-06-30  3516  	int i, max_nr_stripes = conf ? conf->max_nr_stripes : 0;
67143510a7e363 Heinz Mauelshagen     2017-12-02  3517  	unsigned long recovery;
                                                        ^^^^^^^^^^^^^^^^^^^^^^

3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3518  	unsigned int raid_param_cnt = 1; /* at least 1 for chunksize */
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3519  	unsigned int sz = 0;
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3520  	unsigned int rebuild_writemostly_count = 0;
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3521  	sector_t progress, resync_max_sectors, resync_mismatches;
53be73a5d75f47 Heinz Mauelshagen     2019-10-01  3522  	enum sync_state state;
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3523  	struct raid_type *rt;
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3524  
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3525  	switch (type) {
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3526  	case STATUSTYPE_INFO:
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3527  		/* *Should* always succeed */
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3528  		rt = get_raid_type_by_ll(mddev->new_level, mddev->new_layout);
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3529  		if (!rt)
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3530  			return;
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3531  
9dbd1aa3a81c61 Heinz Mauelshagen     2016-06-13  3532  		DMEMIT("%s %d ", rt->name, mddev->raid_disks);
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3533  
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3534  		/* Access most recent mddev properties for status output */
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3535  		smp_rmb();
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3536  		/* Get sensible max sectors even if raid set not yet started */
4286325b4b0dc9 Mike Snitzer          2016-06-02  3537  		resync_max_sectors = test_bit(RT_FLAG_RS_PRERESUMED, &rs->runtime_flags) ?
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3538  				      mddev->resync_max_sectors : mddev->dev_sectors;
53be73a5d75f47 Heinz Mauelshagen     2019-10-01  3539  		recovery = rs->md.recovery;
53be73a5d75f47 Heinz Mauelshagen     2019-10-01  3540  		state = decipher_sync_action(mddev, recovery);
53be73a5d75f47 Heinz Mauelshagen     2019-10-01  3541  		progress = rs_get_progress(rs, recovery, state, resync_max_sectors);
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3542  		resync_mismatches = (mddev->last_sync_action && !strcasecmp(mddev->last_sync_action, "check")) ?
9dbd1aa3a81c61 Heinz Mauelshagen     2016-06-13  3543  				    atomic64_read(&mddev->resync_mismatches) : 0;
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3544  
c63ede3b4211e1 Heinz Mauelshagen     2017-01-14  3545  		/* HM FIXME: do we want another state char for raid0? It shows 'D'/'A'/'-' now */
c63ede3b4211e1 Heinz Mauelshagen     2017-01-14  3546  		for (i = 0; i < rs->raid_disks; i++)
242ea5ad11a03f Heinz Mauelshagen     2017-12-02  3547  			DMEMIT(__raid_dev_status(rs, &rs->dev[i].rdev));
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3548  
2e727c3ca1beff Jonathan E Brassow    2011-10-31  3549  		/*
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3550  		 * In-sync/Reshape ratio:
2e727c3ca1beff Jonathan E Brassow    2011-10-31  3551  		 *  The in-sync ratio shows the progress of:
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3552  		 *   - Initializing the raid set
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3553  		 *   - Rebuilding a subset of devices of the raid set
2e727c3ca1beff Jonathan E Brassow    2011-10-31  3554  		 *  The user can distinguish between the two by referring
2e727c3ca1beff Jonathan E Brassow    2011-10-31  3555  		 *  to the status characters.
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3556  		 *
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3557  		 *  The reshape ratio shows the progress of
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3558  		 *  changing the raid layout or the number of
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3559  		 *  disks of a raid set
2e727c3ca1beff Jonathan E Brassow    2011-10-31  3560  		 */
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3561  		DMEMIT(" %llu/%llu", (unsigned long long) progress,
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3562  				     (unsigned long long) resync_max_sectors);
9d09e663d5502c NeilBrown             2011-01-13  3563  
be83651f0050ca Jonathan Brassow      2013-04-24  3564  		/*
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3565  		 * v1.5.0+:
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3566  		 *
be83651f0050ca Jonathan Brassow      2013-04-24  3567  		 * Sync action:
6cf2a73cb2bc42 Mauro Carvalho Chehab 2019-06-18  3568  		 *   See Documentation/admin-guide/device-mapper/dm-raid.rst for
be83651f0050ca Jonathan Brassow      2013-04-24  3569  		 *   information on each of these states.
be83651f0050ca Jonathan Brassow      2013-04-24  3570  		 */
53be73a5d75f47 Heinz Mauelshagen     2019-10-01  3571  		DMEMIT(" %s", sync_str(state));
be83651f0050ca Jonathan Brassow      2013-04-24  3572  
be83651f0050ca Jonathan Brassow      2013-04-24  3573  		/*
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3574  		 * v1.5.0+:
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3575  		 *
be83651f0050ca Jonathan Brassow      2013-04-24  3576  		 * resync_mismatches/mismatch_cnt
be83651f0050ca Jonathan Brassow      2013-04-24  3577  		 *   This field shows the number of discrepancies found when
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3578  		 *   performing a "check" of the raid set.
be83651f0050ca Jonathan Brassow      2013-04-24  3579  		 */
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3580  		DMEMIT(" %llu", (unsigned long long) resync_mismatches);
9d09e663d5502c NeilBrown             2011-01-13  3581  
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3582  		/*
9b6e54232992a2 Mike Snitzer          2016-06-02  3583  		 * v1.9.0+:
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3584  		 *
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3585  		 * data_offset (needed for out of space reshaping)
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3586  		 *   This field shows the data offset into the data
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3587  		 *   image LV where the first stripes data starts.
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3588  		 *
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3589  		 * We keep data_offset equal on all raid disks of the set,
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3590  		 * so retrieving it from the first raid disk is sufficient.
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3591  		 */
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3592  		DMEMIT(" %llu", (unsigned long long) rs->dev[0].rdev.data_offset);
63c32ed4afc2af Heinz Mauelshagen     2016-11-30  3593  
63c32ed4afc2af Heinz Mauelshagen     2016-11-30  3594  		/*
63c32ed4afc2af Heinz Mauelshagen     2016-11-30  3595  		 * v1.10.0+:
63c32ed4afc2af Heinz Mauelshagen     2016-11-30  3596  		 */
63c32ed4afc2af Heinz Mauelshagen     2016-11-30  3597  		DMEMIT(" %s", test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags) ?
242ea5ad11a03f Heinz Mauelshagen     2017-12-02  3598  			      __raid_dev_status(rs, &rs->journal_dev.rdev) : "-");
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3599  		break;
9d09e663d5502c NeilBrown             2011-01-13  3600  
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3601  	case STATUSTYPE_TABLE:
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3602  		/* Report the table line string you would use to construct this raid set */
9d09e663d5502c NeilBrown             2011-01-13  3603  
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3604  		/*
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3605  		 * Count any rebuild or writemostly argument pairs and subtract the
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3606  		 * hweight count being added below of any rebuild and writemostly ctr flags.
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3607  		 */
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3608  		for (i = 0; i < rs->raid_disks; i++) {
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3609  			rebuild_writemostly_count += (test_bit(i, (void *) rs->rebuild_disks) ? 2 : 0) +
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3610  						     (test_bit(WriteMostly, &rs->dev[i].rdev.flags) ? 2 : 0);
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3611  		}
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3612  		rebuild_writemostly_count -= (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags) ? 2 : 0) +
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3613  					     (test_bit(__CTR_FLAG_WRITE_MOSTLY, &rs->ctr_flags) ? 2 : 0);
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3614  		/* Calculate raid parameter count based on ^ rebuild/writemostly argument counts and ctr flags set. */
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3615  		raid_param_cnt += rebuild_writemostly_count +
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3616  				  hweight32(rs->ctr_flags & CTR_FLAG_OPTIONS_NO_ARGS) +
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3617  				  hweight32(rs->ctr_flags & CTR_FLAG_OPTIONS_ONE_ARG) * 2;
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3618  		/* Emit table line */
4464e36e06470e Heinz Mauelshagen     2017-03-18  3619  		/* This has to be in the documented order for userspace! */
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3620  		DMEMIT("%s %u %u", rs->raid_type->name, raid_param_cnt, mddev->new_chunk_sectors);
4286325b4b0dc9 Mike Snitzer          2016-06-02  3621  		if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags))
3fa6cf38211619 Mike Snitzer          2016-06-02  3622  			DMEMIT(" %s", dm_raid_arg_name_by_flag(CTR_FLAG_SYNC));
4464e36e06470e Heinz Mauelshagen     2017-03-18  3623  		if (test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3624  			DMEMIT(" %s", dm_raid_arg_name_by_flag(CTR_FLAG_NOSYNC));
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3625  		if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags))
7a7c330fc26652 Heinz Mauelshagen     2016-06-30  3626  			for (i = 0; i < rs->raid_disks; i++)
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3627  				if (test_bit(i, (void *) rs->rebuild_disks))
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3628  					DMEMIT(" %s %u", dm_raid_arg_name_by_flag(CTR_FLAG_REBUILD), i);
4464e36e06470e Heinz Mauelshagen     2017-03-18  3629  		if (test_bit(__CTR_FLAG_DAEMON_SLEEP, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3630  			DMEMIT(" %s %lu", dm_raid_arg_name_by_flag(CTR_FLAG_DAEMON_SLEEP),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3631  					  mddev->bitmap_info.daemon_sleep);
4464e36e06470e Heinz Mauelshagen     2017-03-18  3632  		if (test_bit(__CTR_FLAG_MIN_RECOVERY_RATE, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3633  			DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_MIN_RECOVERY_RATE),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3634  					 mddev->sync_speed_min);
4464e36e06470e Heinz Mauelshagen     2017-03-18  3635  		if (test_bit(__CTR_FLAG_MAX_RECOVERY_RATE, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3636  			DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_MAX_RECOVERY_RATE),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3637  					 mddev->sync_speed_max);
43f3952a51f819 Heinz Mauelshagen     2019-12-19  3638  		if (test_bit(__CTR_FLAG_WRITE_MOSTLY, &rs->ctr_flags))
7a7c330fc26652 Heinz Mauelshagen     2016-06-30  3639  			for (i = 0; i < rs->raid_disks; i++)
7a7c330fc26652 Heinz Mauelshagen     2016-06-30  3640  				if (test_bit(WriteMostly, &rs->dev[i].rdev.flags))
3fa6cf38211619 Mike Snitzer          2016-06-02  3641  					DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_WRITE_MOSTLY),
7a7c330fc26652 Heinz Mauelshagen     2016-06-30  3642  					       rs->dev[i].rdev.raid_disk);
4286325b4b0dc9 Mike Snitzer          2016-06-02  3643  		if (test_bit(__CTR_FLAG_MAX_WRITE_BEHIND, &rs->ctr_flags))
3fa6cf38211619 Mike Snitzer          2016-06-02  3644  			DMEMIT(" %s %lu", dm_raid_arg_name_by_flag(CTR_FLAG_MAX_WRITE_BEHIND),
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3645  					  mddev->bitmap_info.max_write_behind);
4464e36e06470e Heinz Mauelshagen     2017-03-18  3646  		if (test_bit(__CTR_FLAG_STRIPE_CACHE, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3647  			DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_STRIPE_CACHE),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3648  					 max_nr_stripes);
4464e36e06470e Heinz Mauelshagen     2017-03-18  3649  		if (test_bit(__CTR_FLAG_REGION_SIZE, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3650  			DMEMIT(" %s %llu", dm_raid_arg_name_by_flag(CTR_FLAG_REGION_SIZE),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3651  					   (unsigned long long) to_sector(mddev->bitmap_info.chunksize));
4464e36e06470e Heinz Mauelshagen     2017-03-18  3652  		if (test_bit(__CTR_FLAG_RAID10_COPIES, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3653  			DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_RAID10_COPIES),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3654  					 raid10_md_layout_to_copies(mddev->layout));
4464e36e06470e Heinz Mauelshagen     2017-03-18  3655  		if (test_bit(__CTR_FLAG_RAID10_FORMAT, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3656  			DMEMIT(" %s %s", dm_raid_arg_name_by_flag(CTR_FLAG_RAID10_FORMAT),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3657  					 raid10_md_layout_to_format(mddev->layout));
4464e36e06470e Heinz Mauelshagen     2017-03-18  3658  		if (test_bit(__CTR_FLAG_DELTA_DISKS, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3659  			DMEMIT(" %s %d", dm_raid_arg_name_by_flag(CTR_FLAG_DELTA_DISKS),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3660  					 max(rs->delta_disks, mddev->delta_disks));
4464e36e06470e Heinz Mauelshagen     2017-03-18  3661  		if (test_bit(__CTR_FLAG_DATA_OFFSET, &rs->ctr_flags))
4464e36e06470e Heinz Mauelshagen     2017-03-18  3662  			DMEMIT(" %s %llu", dm_raid_arg_name_by_flag(CTR_FLAG_DATA_OFFSET),
4464e36e06470e Heinz Mauelshagen     2017-03-18  3663  					   (unsigned long long) rs->data_offset);
63c32ed4afc2af Heinz Mauelshagen     2016-11-30  3664  		if (test_bit(__CTR_FLAG_JOURNAL_DEV, &rs->ctr_flags))
63c32ed4afc2af Heinz Mauelshagen     2016-11-30  3665  			DMEMIT(" %s %s", dm_raid_arg_name_by_flag(CTR_FLAG_JOURNAL_DEV),
63c32ed4afc2af Heinz Mauelshagen     2016-11-30  3666  					__get_dev_name(rs->journal_dev.dev));
6e53636fe81465 Heinz Mauelshagen     2017-03-22  3667  		if (test_bit(__CTR_FLAG_JOURNAL_MODE, &rs->ctr_flags))
6e53636fe81465 Heinz Mauelshagen     2017-03-22  3668  			DMEMIT(" %s %s", dm_raid_arg_name_by_flag(CTR_FLAG_JOURNAL_MODE),
6e53636fe81465 Heinz Mauelshagen     2017-03-22  3669  					 md_journal_mode_to_dm_raid(rs->journal_dev.mode));
3a1c1ef2fd6208 Heinz Mauelshagen     2016-05-19  3670  		DMEMIT(" %d", rs->raid_disks);
7a7c330fc26652 Heinz Mauelshagen     2016-06-30  3671  		for (i = 0; i < rs->raid_disks; i++)
7a7c330fc26652 Heinz Mauelshagen     2016-06-30  3672  			DMEMIT(" %s %s", __get_dev_name(rs->dev[i].meta_dev),
7a7c330fc26652 Heinz Mauelshagen     2016-06-30  3673  					 __get_dev_name(rs->dev[i].data_dev));
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3674  		break;
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3675  
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3676  	case STATUSTYPE_IMA:
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3677  		rt = get_raid_type_by_ll(mddev->new_level, mddev->new_layout);
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3678  		if (!rt)
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3679  			return;
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3680  
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3681  		DMEMIT_TARGET_NAME_VERSION(ti->type);
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3682  		DMEMIT(",raid_type=%s,raid_disks=%d", rt->name, mddev->raid_disks);
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3683  
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3684  		/* Access most recent mddev properties for status output */
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3685  		smp_rmb();
fdac9de80c2e66 Tushar Sugandhi       2021-07-12 @3686  		state = decipher_sync_action(mddev, recovery);
                                                                                                    ^^^^^^^^
Uninitialized

fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3687  		DMEMIT(",raid_state=%s", sync_str(state));
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3688  
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3689  		for (i = 0; i < rs->raid_disks; i++) {
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3690  			DMEMIT(",raid_device_%d_status=", i);
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3691  			DMEMIT(__raid_dev_status(rs, &rs->dev[i].rdev));
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3692  		}
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3693  
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3694  		if (rt_is_raid456(rt)) {
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3695  			DMEMIT(",journal_dev_mode=");
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3696  			switch (rs->journal_dev.mode) {
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3697  			case R5C_JOURNAL_MODE_WRITE_THROUGH:
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3698  				DMEMIT("%s",
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3699  				       _raid456_journal_mode[R5C_JOURNAL_MODE_WRITE_THROUGH].param);
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3700  				break;
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3701  			case R5C_JOURNAL_MODE_WRITE_BACK:
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3702  				DMEMIT("%s",
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3703  				       _raid456_journal_mode[R5C_JOURNAL_MODE_WRITE_BACK].param);
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3704  				break;
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3705  			default:
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3706  				DMEMIT("invalid");
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3707  				break;
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3708  			}
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3709  		}
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3710  		DMEMIT(";");
fdac9de80c2e66 Tushar Sugandhi       2021-07-12  3711  		break;
9d09e663d5502c NeilBrown             2011-01-13  3712  	}
9d09e663d5502c NeilBrown             2011-01-13  3713  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org



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2021-07-26 13:11 [linux-next:master 2228/3296] drivers/md/dm-raid.c:3686 raid_status() error: uninitialized symbol 'recovery' Dan Carpenter

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