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| author | David Disseldorp <ddiss@suse.de> | 2019-02-04 19:32:10 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-02-04 21:40:32 -0500 |
| commit | b6cd7f34ba1354498de03e6882c33f935b071e99 (patch) | |
| tree | 1d0efd5a93487b23e2c7702a96ec788e0f90aa21 | |
| parent | 42caa0edabd6a0a392ec36a5f0943924e4954311 (diff) | |
| download | linux-bitmain-b6cd7f34ba1354498de03e6882c33f935b071e99.tar.gz | |
scsi: target: make the pi_prot_format ConfigFS path readable
pi_prot_format conversion to write-only caused userspace breakage. Make the
ConfigFS path readable again and hardcode the "0\n" content, matching
previous output.
Fixes: 6baca7601bde ("scsi: target: drop unused pi_prot_format attribute storage")
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1667505
Reported-by: Lee Duncan <lduncan@suse.com>
Reported-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/target/target_core_configfs.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 72016d0dfca5dc..8e7fffbb880291 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -852,6 +852,12 @@ static ssize_t pi_prot_type_store(struct config_item *item, return count; } +/* always zero, but attr needs to remain RW to avoid userspace breakage */ +static ssize_t pi_prot_format_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "0\n"); +} + static ssize_t pi_prot_format_store(struct config_item *item, const char *page, size_t count) { @@ -1132,7 +1138,7 @@ CONFIGFS_ATTR(, emulate_3pc); CONFIGFS_ATTR(, emulate_pr); CONFIGFS_ATTR(, pi_prot_type); CONFIGFS_ATTR_RO(, hw_pi_prot_type); -CONFIGFS_ATTR_WO(, pi_prot_format); +CONFIGFS_ATTR(, pi_prot_format); CONFIGFS_ATTR(, pi_prot_verify); CONFIGFS_ATTR(, enforce_pr_isids); CONFIGFS_ATTR(, is_nonrot); |