diff options
author | Roland Dreier <roland@purestorage.com> | 2014-06-10 22:07:47 +0400 |
---|---|---|
committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-11 23:15:30 +0400 |
commit | 2426bd456a61407388b6e61fc5f98dbcbebc50e2 (patch) | |
tree | 4d074c38acefad0aca18b9da752bec2abb6476a7 /drivers/target/target_core_sbc.c | |
parent | c52716defd6ec7e89c510c740de7ec3478008f28 (diff) | |
download | linux-2426bd456a61407388b6e61fc5f98dbcbebc50e2.tar.xz |
target: Report correct response length for some commands
When an initiator sends an allocation length bigger than what its
command consumes, the target should only return the actual response data
and set the residual length to the unused part of the allocation length.
Add a helper function that command handlers (INQUIRY, READ CAPACITY,
etc) can use to do this correctly, and use this code to get the correct
residual for commands that don't use the full initiator allocation in the
handlers for READ CAPACITY, READ CAPACITY(16), INQUIRY, MODE SENSE and
REPORT LUNS.
This addresses a handful of failures as reported by Christophe with
the Windows Certification Kit:
http://permalink.gmane.org/gmane.linux.scsi.target.devel/6515
Signed-off-by: Roland Dreier <roland@purestorage.com>
Tested-by: Christophe Vu-Brugier <cvubrugier@yahoo.fr>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_sbc.c')
-rw-r--r-- | drivers/target/target_core_sbc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 97a33603795d..1d3a626bf24f 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -81,7 +81,7 @@ sbc_emulate_readcapacity(struct se_cmd *cmd) transport_kunmap_data_sg(cmd); } - target_complete_cmd(cmd, GOOD); + target_complete_cmd_with_length(cmd, GOOD, 8); return 0; } @@ -137,7 +137,7 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd) transport_kunmap_data_sg(cmd); } - target_complete_cmd(cmd, GOOD); + target_complete_cmd_with_length(cmd, GOOD, 32); return 0; } |