[PATCH v2 2/7] scsi: mpt3sas: replace deprecated strncpy with strscpy

Justin Stitt
2024-02-28T22:59:12Z

The replacement in mpt3sas_base.c is a trivial one because desc is
already zero-initialized meaning there is no functional change here.

For mpt3sas_transport.c, we know edev is zero-initialized as well while
manufacture_reply comes from dma_alloc_coherent(). No functional change
here either.

For all cases, use the more idiomatic strscpy() usage of:
strscpy(dest, src, sizeof(dest))

Signed-off-by: Justin Stitt <justinstitt@google.com>
---
drivers/scsi/mpt3sas/mpt3sas_base.c | 2 +-
drivers/scsi/mpt3sas/mpt3sas_transport.c | 18 +++++++++---------
2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 8761bc58d965..c1e421cb8533 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -4774,7 +4774,7 @@ _base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc)
char desc[17] = {0};
u32 iounit_pg1_flags;

- strncpy(desc, ioc->manu_pg0.ChipName, 16);
+ strscpy(desc, ioc->manu_pg0.ChipName, sizeof(desc));
ioc_info(ioc, "%s: FWVersion(%02d.%02d.%02d.%02d), ChipRevision(0x%02x)\n",
desc,
(ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c
index 421ea511b664..76f9a9177198 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_transport.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c
@@ -458,17 +458,17 @@ _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc,
goto out;

manufacture_reply = data_out + sizeof(struct rep_manu_request);
- strncpy(edev->vendor_id, manufacture_reply->vendor_id,
- SAS_EXPANDER_VENDOR_ID_LEN);
- strncpy(edev->product_id, manufacture_reply->product_id,
- SAS_EXPANDER_PRODUCT_ID_LEN);
- strncpy(edev->product_rev, manufacture_reply->product_rev,
- SAS_EXPANDER_PRODUCT_REV_LEN);
+ strscpy(edev->vendor_id, manufacture_reply->vendor_id,
+ sizeof(edev->vendor_id));
+ strscpy(edev->product_id, manufacture_reply->product_id,
+ sizeof(edev->product_id));
+ strscpy(edev->product_rev, manufacture_reply->product_rev,
+ sizeof(edev->product_rev));
edev->level = manufacture_reply->sas_format & 1;
if (edev->level) {
- strncpy(edev->component_vendor_id,
- manufacture_reply->component_vendor_id,
- SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
+ strscpy(edev->component_vendor_id,
+ manufacture_reply->component_vendor_id,
+ sizeof(edev->component_vendor_id));
tmp = (u8 *)&manufacture_reply->component_id;
edev->component_id = tmp[0] << 8 | tmp[1];
edev->component_revision_id =

--
2.44.0.rc1.240.g4c46232300-goog