[PATCH v2 2/4][next] scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_FW_RAID_MAP_DYNAMIC

Gustavo A. R. Silva
2021-08-05T04:16:18Z

Replace one-element array with a flexible-array member in struct
MR_FW_RAID_MAP_DYNAMIC.

This helps with the ongoing efforts to globally enable -Warray-bounds
and get us closer to being able to tighten the FORTIFY_SOURCE routines
on memcpy().

Link: https://en.wikipedia.org/wiki/Flexible_array_member
Link: https://www.kernel.org/doc/html/v5.10/process/deprecated.html#zero-length-and-one-element-arrays
Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
Changes in v2:
- None.

drivers/scsi/megaraid/megaraid_sas_fusion.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h
index a47139ef9ee2..9adb8b30f422 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.h
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h
@@ -1053,7 +1053,7 @@ struct MR_FW_RAID_MAP_DYNAMIC {
struct MR_RAID_MAP_DESC_TABLE
raid_map_desc_table[RAID_MAP_DESC_TYPE_COUNT];
/* Variable Size buffer containing all data */
- u32 raid_map_desc_data[1];
+ u32 raid_map_desc_data[];
}; /* Dynamicaly sized RAID MAp structure */

#define IEEE_SGE_FLAGS_ADDR_MASK (0x03)
--
2.27.0