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| author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2022-08-16 00:40:35 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-09-01 06:39:59 +0300 |
| commit | ac23b92b27e32f1ff331350342ce9f2ee9d0ab0f (patch) | |
| tree | e34d2937e790af42d4171d87d9477d9f6bd32a89 | |
| parent | 3cb0643a9aae7cf360102a6a9db47f5ce9fefdb1 (diff) | |
| download | linux-ac23b92b27e32f1ff331350342ce9f2ee9d0ab0f.tar.xz | |
scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_FW_RAID_MAP
One-element arrays are deprecated, and we are replacing them with flexible
array members instead. So, replace one-element array with flexible-array
member in struct MR_DRV_RAID_MAP and refactor the the rest of the code
accordingly.
This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy().
Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Link: https://lore.kernel.org/r/4495ce170c8ef088a10f1abe0e7c227368f43242.1660592640.git.gustavoars@kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Enhanced-by: Kees Cook <keescook@chromium.org> # Change in struct MR_FW_RAID_MAP_ALL
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fp.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.h | 4 |
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index c9b01b155f65..43b97376f4e1 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5157,7 +5157,7 @@ static void megasas_update_ext_vd_details(struct megasas_instance *instance) } else { fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) + (sizeof(struct MR_LD_SPAN_MAP) * - (instance->fw_supported_vd_count - 1)); + instance->fw_supported_vd_count); fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); fusion->max_map_sz = diff --git a/drivers/scsi/megaraid/megaraid_sas_fp.c b/drivers/scsi/megaraid/megaraid_sas_fp.c index 83f69c33b01a..b2ec7a3f7650 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fp.c +++ b/drivers/scsi/megaraid/megaraid_sas_fp.c @@ -327,7 +327,7 @@ u8 MR_ValidateMapInfo(struct megasas_instance *instance, u64 map_id) expected_size = sizeof(struct MR_FW_RAID_MAP_EXT); else expected_size = - (sizeof(struct MR_FW_RAID_MAP) - sizeof(struct MR_LD_SPAN_MAP) + + (sizeof(struct MR_FW_RAID_MAP) + (sizeof(struct MR_LD_SPAN_MAP) * le16_to_cpu(pDrvRaidMap->ldCount))); if (le32_to_cpu(pDrvRaidMap->totalSize) != expected_size) { diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h index ce84f811e5e1..5530c233fccb 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.h +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h @@ -942,7 +942,7 @@ struct MR_FW_RAID_MAP { u8 reserved2[7]; struct MR_ARRAY_INFO arMapInfo[MAX_RAIDMAP_ARRAYS]; struct MR_DEV_HANDLE_INFO devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES]; - struct MR_LD_SPAN_MAP ldSpanMap[1]; + struct MR_LD_SPAN_MAP ldSpanMap[]; }; struct IO_REQUEST_INFO { @@ -1148,7 +1148,7 @@ typedef struct LOG_BLOCK_SPAN_INFO { struct MR_FW_RAID_MAP_ALL { struct MR_FW_RAID_MAP raidMap; - struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES - 1]; + struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES]; } __attribute__ ((packed)); struct MR_DRV_RAID_MAP { |