If MR_TargetIdToLdGet return >= 0xFF, it is invalid entry. Consider that entry as invalid and do not access raid map for further operation.
Signed-off-by: Shivasharan S <[email protected]> Signed-off-by: Kashyap Desai <[email protected]> --- drivers/scsi/megaraid/megaraid_sas.h | 2 +- drivers/scsi/megaraid/megaraid_sas_fp.c | 5 +++-- drivers/scsi/megaraid/megaraid_sas_fusion.c | 25 ++++++++++++++----------- 3 files changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index f023e23..ec5f003 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -2448,7 +2448,7 @@ MR_BuildRaidContext(struct megasas_instance *instance, struct IO_REQUEST_INFO *io_info, struct RAID_CONTEXT *pRAID_Context, struct MR_DRV_RAID_MAP_ALL *map, u8 **raidLUN); -u8 MR_TargetIdToLdGet(u32 ldTgtId, struct MR_DRV_RAID_MAP_ALL *map); +u16 MR_TargetIdToLdGet(u32 ldTgtId, struct MR_DRV_RAID_MAP_ALL *map); struct MR_LD_RAID *MR_LdRaidGet(u32 ld, struct MR_DRV_RAID_MAP_ALL *map); u16 MR_ArPdGet(u32 ar, u32 arm, struct MR_DRV_RAID_MAP_ALL *map); u16 MR_LdSpanArrayGet(u32 ld, u32 span, struct MR_DRV_RAID_MAP_ALL *map); diff --git a/drivers/scsi/megaraid/megaraid_sas_fp.c b/drivers/scsi/megaraid/megaraid_sas_fp.c index a0b0e68..9d5d485 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fp.c +++ b/drivers/scsi/megaraid/megaraid_sas_fp.c @@ -165,7 +165,7 @@ u16 MR_GetLDTgtId(u32 ld, struct MR_DRV_RAID_MAP_ALL *map) return le16_to_cpu(map->raidMap.ldSpanMap[ld].ldRaid.targetId); } -u8 MR_TargetIdToLdGet(u32 ldTgtId, struct MR_DRV_RAID_MAP_ALL *map) +u16 MR_TargetIdToLdGet(u32 ldTgtId, struct MR_DRV_RAID_MAP_ALL *map) { return map->raidMap.ldTgtIdToLd[ldTgtId]; } @@ -1151,7 +1151,7 @@ MR_BuildRaidContext(struct megasas_instance *instance, { struct fusion_context *fusion; struct MR_LD_RAID *raid; - u32 ld, stripSize, stripe_mask; + u32 stripSize, stripe_mask; u64 endLba, endStrip, endRow, start_row, start_strip; u64 regStart; u32 regSize; @@ -1163,6 +1163,7 @@ MR_BuildRaidContext(struct megasas_instance *instance, u8 retval = 0; u8 startlba_span = SPAN_INVALID; u64 *pdBlock = &io_info->pdBlock; + u16 ld; ldStartBlock = io_info->ldStartBlock; numBlocks = io_info->numBlocks; diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 2f523f2..3d4d4b8 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -1120,7 +1120,8 @@ megasas_sync_map_info(struct megasas_instance *instance) int i; struct megasas_cmd *cmd; struct megasas_dcmd_frame *dcmd; - u32 size_sync_info, num_lds; + u16 num_lds; + u32 size_sync_info; struct fusion_context *fusion; struct MR_LD_TARGET_SYNC *ci = NULL; struct MR_DRV_RAID_MAP_ALL *map; @@ -1867,7 +1868,7 @@ megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST *io_request, u8 cdb_len, struct MR_DRV_RAID_MAP_ALL *local_map_ptr, u32 ref_tag) { struct MR_LD_RAID *raid; - u32 ld; + u16 ld; u64 start_blk = io_info->pdBlock; u8 *cdb = io_request->CDB.CDB32; u32 num_blocks = io_info->numBlocks; @@ -2300,10 +2301,11 @@ megasas_build_ldio_fusion(struct megasas_instance *instance, local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; ld = MR_TargetIdToLdGet(device_id, local_map_ptr); - raid = MR_LdRaidGet(ld, local_map_ptr); - if ((MR_TargetIdToLdGet(device_id, local_map_ptr) >= - instance->fw_supported_vd_count) || (!fusion->fast_path_io)) { + if (ld < instance->fw_supported_vd_count) + raid = MR_LdRaidGet(ld, local_map_ptr); + + if (!raid || (!fusion->fast_path_io)) { io_request->RaidContext.raid_context.reg_lock_flags = 0; fp_possible = false; } else { @@ -2475,12 +2477,12 @@ static void megasas_build_ld_nonrw_fusion(struct megasas_instance *instance, { u32 device_id; struct MPI2_RAID_SCSI_IO_REQUEST *io_request; - u16 pd_index = 0; + u16 pd_index = 0, ld; struct MR_DRV_RAID_MAP_ALL *local_map_ptr; struct fusion_context *fusion = instance->ctrl_context; u8 span, physArm; __le16 devHandle; - u32 ld, arRef, pd; + u32 arRef, pd; struct MR_LD_RAID *raid; struct RAID_CONTEXT *pRAID_Context; u8 fp_possible = 1; @@ -2503,10 +2505,11 @@ static void megasas_build_ld_nonrw_fusion(struct megasas_instance *instance, ld = MR_TargetIdToLdGet(device_id, local_map_ptr); if (ld >= instance->fw_supported_vd_count) fp_possible = 0; - - raid = MR_LdRaidGet(ld, local_map_ptr); - if (!(raid->capability.fpNonRWCapable)) - fp_possible = 0; + else { + raid = MR_LdRaidGet(ld, local_map_ptr); + if (!(raid->capability.fpNonRWCapable)) + fp_possible = 0; + } } else fp_possible = 0; -- 2.8.3
