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| author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2022-08-16 00:49:38 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-09-01 06:39:59 +0300 |
| commit | ee92366a8439856136368a106e6e08ffa8306a1e (patch) | |
| tree | 38f9637c80aa19232cb3f3630b2dafecabf02a45 /drivers/scsi/megaraid | |
| parent | eeb3bab77244b8d91e4e9b611177cd1196900163 (diff) | |
| download | linux-ee92366a8439856136368a106e6e08ffa8306a1e.tar.xz | |
scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_PD_CFG_SEQ_NUM_SYNC
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_PD_CFG_SEQ_NUM_SYNC and refactor the rest of the code
accordingly.
This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
on memcpy() and help us make progress towards globally enabling
-fstrict-flex-arrays [0].
Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109
Link: Link: https://reviews.llvm.org/D126864 [0]
Link: https://lore.kernel.org/r/78e9261591db072b67fcf49f0216d7046a67ca6d.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>
Diffstat (limited to 'drivers/scsi/megaraid')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_base.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.h | 2 |
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 43b97376f4e1..59703ef8b1ad 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5793,7 +5793,7 @@ megasas_setup_jbod_map(struct megasas_instance *instance) u32 pd_seq_map_sz; pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + - (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); + (sizeof(struct MR_PD_CFG_SEQ) * MAX_PHYSICAL_DEVICES); instance->use_seqnum_jbod_fp = instance->support_seqnum_jbod_fp; @@ -8046,7 +8046,7 @@ skip_firing_dcmds: megasas_release_fusion(instance); pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + (sizeof(struct MR_PD_CFG_SEQ) * - (MAX_PHYSICAL_DEVICES - 1)); + MAX_PHYSICAL_DEVICES); for (i = 0; i < 2 ; i++) { if (fusion->ld_map[i]) dma_free_coherent(&instance->pdev->dev, diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index e48d4261d0bc..f17ec83f7c98 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -1310,7 +1310,7 @@ megasas_sync_pd_seq_num(struct megasas_instance *instance, bool pend) { pd_sync = (void *)fusion->pd_seq_sync[(instance->pd_seq_map_id & 1)]; pd_seq_h = fusion->pd_seq_phys[(instance->pd_seq_map_id & 1)]; - pd_seq_map_sz = struct_size(pd_sync, seq, MAX_PHYSICAL_DEVICES - 1); + pd_seq_map_sz = struct_size(pd_sync, seq, MAX_PHYSICAL_DEVICES); cmd = megasas_get_cmd(instance); if (!cmd) { diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h index df92d4369e04..49e9a9048ee7 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.h +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h @@ -1249,7 +1249,7 @@ struct MR_PD_CFG_SEQ { struct MR_PD_CFG_SEQ_NUM_SYNC { __le32 size; __le32 count; - struct MR_PD_CFG_SEQ seq[1]; + struct MR_PD_CFG_SEQ seq[]; } __packed; /* stream detection */ |