3.2.44-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Nicholas Bellinger <[email protected]> commit ba539743b70cd160c84bab1c82910d0789b820f8 upstream. 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 <[email protected]> Cc: Rob Evers <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Roland Dreier <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- drivers/target/target_core_alua.c | 6 +++--- drivers/target/target_core_transport.c | 3 ++- 2 files changed, 5 insertions(+), 4 deletions(-) --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -394,7 +394,7 @@ static inline int core_alua_state_standb case RECEIVE_DIAGNOSTIC: case SEND_DIAGNOSTIC: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: @@ -436,7 +436,7 @@ static inline int core_alua_state_unavai case INQUIRY: case REPORT_LUNS: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: @@ -476,7 +476,7 @@ static inline int core_alua_state_transi case INQUIRY: case REPORT_LUNS: case MAINTENANCE_IN: - switch (cdb[1]) { + switch (cdb[1] & 0x1f) { case MI_REPORT_TARGET_PGS: return 0; default: --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1445,6 +1445,7 @@ static inline void transport_generic_pre case VERIFY_16: /* SBC - VRProtect */ case WRITE_VERIFY: /* SBC - VRProtect */ case WRITE_VERIFY_12: /* SBC - VRProtect */ + case MAINTENANCE_IN: /* SPC - Parameter Data Format for SA RTPG */ break; default: cdb[1] &= 0x1f; /* clear logical unit number */ @@ -2683,7 +2684,7 @@ static int transport_generic_cmd_sequenc /* * Check for emulated MI_REPORT_TARGET_PGS. */ - if (cdb[1] == MI_REPORT_TARGET_PGS && + if ((cdb[1] & 0x1f) == MI_REPORT_TARGET_PGS && su_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED) { cmd->execute_task = target_emulate_report_target_port_groups; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
