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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-05-16 21:52:10 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-05-17 00:45:58 -0700 |
| commit | ba539743b70cd160c84bab1c82910d0789b820f8 (patch) | |
| tree | dfcd54b96116920512e58301e682ffeec7c8f1ff /drivers/target/target_core_alua.c | |
| parent | 66246617ab7f0587f42ca49825a16d7a391fe15b (diff) | |
| download | linux-ba539743b70cd160c84bab1c82910d0789b820f8.tar.gz linux-ba539743b70cd160c84bab1c82910d0789b820f8.tar.xz linux-ba539743b70cd160c84bab1c82910d0789b820f8.zip | |
target: Fix MAINTENANCE_IN service action CDB checks to use lower 5 bits
This patch fixes the MAINTENANCE_IN service action type checks to only
look at the proper lower 5 bits of cdb byte 1. This addresses the case
where MI_REPORT_TARGET_PGS w/ extended header using the upper three bits of
cdb byte 1 was not processed correctly in transport_generic_cmd_sequencer,
as well as the three cases for standby, unavailable, and transition ALUA
primary access state checks.
Also add MAINTENANCE_IN to the excluded list in transport_generic_prepare_cdb()
to prevent the PARAMETER DATA FORMAT bits from being cleared.
Cc: Hannes Reinecke <hare@suse.de>
Cc: Rob Evers <revers@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_alua.c')
| -rw-r--r-- | drivers/target/target_core_alua.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index c39ae7cd9895..be7251ee8b3a 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -387,7 +387,7 @@ static inline int core_alua_state_standby( case RECEIVE_DIAGNOSTIC: case SEND_DIAGNOSTIC: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: @@ -429,7 +429,7 @@ static inline int core_alua_state_unavailable( case INQUIRY: case REPORT_LUNS: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: @@ -469,7 +469,7 @@ static inline int core_alua_state_transition( case INQUIRY: case REPORT_LUNS: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: |