diff options
| author | James Seo <james@equiv.tech> | 2023-08-06 10:05:53 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-11-15 08:52:01 -0500 |
| commit | aa4db51bbd51654e215905f384eecf22327bafa9 (patch) | |
| tree | 30c849f1764be77d2ca4566873414f3181ad8f61 /drivers/scsi/mpt3sas/mpi/mpi2_ioc.h | |
| parent | b85ea95d086471afb4ad062012a4d73cd328fa86 (diff) | |
| download | linux-aa4db51bbd51654e215905f384eecf22327bafa9.tar.gz linux-aa4db51bbd51654e215905f384eecf22327bafa9.tar.bz2 linux-aa4db51bbd51654e215905f384eecf22327bafa9.zip | |
scsi: mpt3sas: Use flexible arrays when obviously possible
These terminal 1-length variable arrays can be directly converted into C99
flexible array members without any binary changes.
In most cases, they belong to unused structs, or to structs used only by
unused code. The remaining few coincidentally have their sizes calculated
in roundabout ways that do not depend on the sizeof() their structs.
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Seo <james@equiv.tech>
Link: https://lore.kernel.org/r/20230806170604.16143-2-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/mpi/mpi2_ioc.h')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpi/mpi2_ioc.h | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h index 2c57115172cf..d92852591134 100644 --- a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h +++ b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h @@ -808,12 +808,9 @@ typedef struct _MPI2_EVENT_DATA_IR_PHYSICAL_DISK { /*Integrated RAID Configuration Change List Event data */ /* - *Host code (drivers, BIOS, utilities, etc.) should leave this define set to - *one and check NumElements at runtime. + *Host code (drivers, BIOS, utilities, etc.) should check NumElements at + *runtime before using ConfigElement[]. */ -#ifndef MPI2_EVENT_IR_CONFIG_ELEMENT_COUNT -#define MPI2_EVENT_IR_CONFIG_ELEMENT_COUNT (1) -#endif typedef struct _MPI2_EVENT_IR_CONFIG_ELEMENT { U16 ElementFlags; /*0x00 */ @@ -848,7 +845,7 @@ typedef struct _MPI2_EVENT_DATA_IR_CONFIG_CHANGE_LIST { U8 ConfigNum; /*0x03 */ U32 Flags; /*0x04 */ MPI2_EVENT_IR_CONFIG_ELEMENT - ConfigElement[MPI2_EVENT_IR_CONFIG_ELEMENT_COUNT];/*0x08 */ + ConfigElement[];/*0x08 */ } MPI2_EVENT_DATA_IR_CONFIG_CHANGE_LIST, *PTR_MPI2_EVENT_DATA_IR_CONFIG_CHANGE_LIST, Mpi2EventDataIrConfigChangeList_t, @@ -969,12 +966,9 @@ typedef struct _MPI2_EVENT_DATA_SAS_INIT_TABLE_OVERFLOW { /*SAS Topology Change List Event data */ /* - *Host code (drivers, BIOS, utilities, etc.) should leave this define set to - *one and check NumEntries at runtime. + *Host code (drivers, BIOS, utilities, etc.) should check NumEntries at + *runtime before using PHY[]. */ -#ifndef MPI2_EVENT_SAS_TOPO_PHY_COUNT -#define MPI2_EVENT_SAS_TOPO_PHY_COUNT (1) -#endif typedef struct _MPI2_EVENT_SAS_TOPO_PHY_ENTRY { U16 AttachedDevHandle; /*0x00 */ @@ -994,7 +988,7 @@ typedef struct _MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST { U8 ExpStatus; /*0x0A */ U8 PhysicalPort; /*0x0B */ MPI2_EVENT_SAS_TOPO_PHY_ENTRY - PHY[MPI2_EVENT_SAS_TOPO_PHY_COUNT]; /*0x0C */ + PHY[]; /*0x0C */ } MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST, *PTR_MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST, Mpi2EventDataSasTopologyChangeList_t, @@ -1229,12 +1223,9 @@ typedef struct _MPI26_EVENT_DATA_PCIE_ENUMERATION { /*PCIe Topology Change List Event data (MPI v2.6 and later) */ /* - *Host code (drivers, BIOS, utilities, etc.) should leave this define set to - *one and check NumEntries at runtime. + *Host code (drivers, BIOS, utilities, etc.) should check NumEntries at + *runtime before using PortEntry[]. */ -#ifndef MPI26_EVENT_PCIE_TOPO_PORT_COUNT -#define MPI26_EVENT_PCIE_TOPO_PORT_COUNT (1) -#endif typedef struct _MPI26_EVENT_PCIE_TOPO_PORT_ENTRY { U16 AttachedDevHandle; /*0x00 */ @@ -1286,7 +1277,7 @@ typedef struct _MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST { U8 SwitchStatus; /*0x0A */ U8 PhysicalPort; /*0x0B */ MPI26_EVENT_PCIE_TOPO_PORT_ENTRY - PortEntry[MPI26_EVENT_PCIE_TOPO_PORT_COUNT]; /*0x0C */ + PortEntry[]; /*0x0C */ } MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST, *PTR_MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST, Mpi26EventDataPCIeTopologyChangeList_t, |