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scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_DRV_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 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/1448f387821833726b99f0ce13069ada89164eb5.1660592640.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_DRV_RAID_MAP_ALL
This commit is contained in:
Gustavo A. R. Silva 2022-08-15 16:46:13 -05:00 committed by Martin K. Petersen
parent 204a29a169
commit eeb3bab772
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/megaraid/megaraid_sas_fusion.h
View File

@ -1182,7 +1182,7 @@ struct MR_DRV_RAID_MAP {
devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES_DYN];
u16 ldTgtIdToLd[MAX_LOGICAL_DRIVES_DYN];
struct MR_ARRAY_INFO arMapInfo[MAX_API_ARRAYS_DYN];
struct MR_LD_SPAN_MAP ldSpanMap[1];
struct MR_LD_SPAN_MAP ldSpanMap[];
};
@ -1193,7 +1193,7 @@ struct MR_DRV_RAID_MAP {
struct MR_DRV_RAID_MAP_ALL {
struct MR_DRV_RAID_MAP raidMap;
struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_DYN - 1];
struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_DYN];
} __packed;