diff options
author | James Seo <james@equiv.tech> | 2023-08-06 19:05:59 +0200 |
---|---|---|
committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-11-15 14:52:02 +0100 |
commit | f4f76e141769d7be10d801706858e89cf299c250 (patch) | |
tree | 47988e5240e3912cfedc01d7dbcdeee33d3d5fe1 /drivers/scsi/mpt3sas | |
parent | scsi: mpt3sas: Make MPI26_CONFIG_PAGE_PIOUNIT_1::PhyData[] a flexible array (diff) | |
download | linux-f4f76e141769d7be10d801706858e89cf299c250.tar.xz linux-f4f76e141769d7be10d801706858e89cf299c250.zip |
scsi: mpt3sas: Use struct_size() for struct size calculations
After converting terminal variable arrays into flexible array members, use
the bounds-checking struct_size() helper when possible to avoid open-coded
arithmetic struct size calculations.
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-8-james@equiv.tech
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas')
-rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.c | 3 | ||||
-rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_scsih.c | 18 | ||||
-rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_transport.c | 9 | ||||
-rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_warpdrive.c | 3 |
4 files changed, 11 insertions, 22 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index a75f670bf551..bee1e2727a4c 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -4893,8 +4893,7 @@ mpt3sas_base_update_missing_delay(struct MPT3SAS_ADAPTER *ioc, if (!num_phys) return; - sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys * - sizeof(Mpi2SasIOUnit1PhyData_t)); + sz = struct_size(sas_iounit_pg1, PhyData, num_phys); sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg1) { ioc_err(ioc, "failure at %s:%d/%s()!\n", diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 605013d3ee83..0a720ce1383a 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -2431,8 +2431,7 @@ _scsih_get_volume_capabilities(struct MPT3SAS_ADAPTER *ioc, } raid_device->num_pds = num_pds; - sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds * - sizeof(Mpi2RaidVol0PhysDisk_t)); + sz = struct_size(vol_pg0, PhysDisk, num_pds); vol_pg0 = kzalloc(sz, GFP_KERNEL); if (!vol_pg0) { dfailprintk(ioc, @@ -5966,8 +5965,7 @@ _scsih_update_vphys_after_reset(struct MPT3SAS_ADAPTER *ioc) /* * Read SASIOUnitPage0 to get each HBA Phy's data. */ - sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + - (ioc->sas_hba.num_phys * sizeof(Mpi2SasIOUnit0PhyData_t)); + sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys); sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg0) { ioc_err(ioc, "failure at %s:%d/%s()!\n", @@ -6145,8 +6143,7 @@ _scsih_get_port_table_after_reset(struct MPT3SAS_ADAPTER *ioc, u64 attached_sas_addr; u8 found = 0, port_count = 0, port_id; - sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys - * sizeof(Mpi2SasIOUnit0PhyData_t)); + sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys); sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg0) { ioc_err(ioc, "failure at %s:%d/%s()!\n", @@ -6579,8 +6576,7 @@ _scsih_sas_host_refresh(struct MPT3SAS_ADAPTER *ioc) ioc_info(ioc, "updating handles for sas_host(0x%016llx)\n", (u64)ioc->sas_hba.sas_address)); - sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys - * sizeof(Mpi2SasIOUnit0PhyData_t)); + sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys); sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg0) { ioc_err(ioc, "failure at %s:%d/%s()!\n", @@ -6731,8 +6727,7 @@ _scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc) ioc->sas_hba.num_phys = num_phys; /* sas_iounit page 0 */ - sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys * - sizeof(Mpi2SasIOUnit0PhyData_t)); + sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys); sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg0) { ioc_err(ioc, "failure at %s:%d/%s()!\n", @@ -6754,8 +6749,7 @@ _scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc) } /* sas_iounit page 1 */ - sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * - sizeof(Mpi2SasIOUnit1PhyData_t)); + sz = struct_size(sas_iounit_pg1, PhyData, ioc->sas_hba.num_phys); sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg1) { ioc_err(ioc, "failure at %s:%d/%s()!\n", diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c index e8a4750f6ec4..421ea511b664 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_transport.c +++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c @@ -1792,8 +1792,7 @@ _transport_phy_enable(struct sas_phy *phy, int enable) /* handle hba phys */ /* read sas_iounit page 0 */ - sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys * - sizeof(Mpi2SasIOUnit0PhyData_t)); + sz = struct_size(sas_iounit_pg0, PhyData, ioc->sas_hba.num_phys); sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg0) { ioc_err(ioc, "failure at %s:%d/%s()!\n", @@ -1833,8 +1832,7 @@ _transport_phy_enable(struct sas_phy *phy, int enable) } /* read sas_iounit page 1 */ - sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * - sizeof(Mpi2SasIOUnit1PhyData_t)); + sz = struct_size(sas_iounit_pg1, PhyData, ioc->sas_hba.num_phys); sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg1) { ioc_err(ioc, "failure at %s:%d/%s()!\n", @@ -1944,8 +1942,7 @@ _transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) /* handle hba phys */ /* sas_iounit page 1 */ - sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys * - sizeof(Mpi2SasIOUnit1PhyData_t)); + sz = struct_size(sas_iounit_pg1, PhyData, ioc->sas_hba.num_phys); sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL); if (!sas_iounit_pg1) { ioc_err(ioc, "failure at %s:%d/%s()!\n", diff --git a/drivers/scsi/mpt3sas/mpt3sas_warpdrive.c b/drivers/scsi/mpt3sas/mpt3sas_warpdrive.c index cc07ba41f507..1d64e5056a8a 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_warpdrive.c +++ b/drivers/scsi/mpt3sas/mpt3sas_warpdrive.c @@ -141,8 +141,7 @@ mpt3sas_init_warpdrive_properties(struct MPT3SAS_ADAPTER *ioc, return; } - sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds * - sizeof(Mpi2RaidVol0PhysDisk_t)); + sz = struct_size(vol_pg0, PhysDisk, num_pds); vol_pg0 = kzalloc(sz, GFP_KERNEL); if (!vol_pg0) { ioc_info(ioc, "WarpDrive : Direct IO is disabled Memory allocation failure for RVPG0\n"); 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