This terminal 1-length variable array can be directly converted into
a C99 flexible array member.
As all users of MPI26_CONFIG_PAGE_PIOUNIT_1 (Mpi26PCIeIOUnitPage1_t)
do not use PhyData[], no further source changes are required to
accommodate its reduced sizeof():
- mpt3sas_config.c:mpt3sas_config_get_pcie_iounit_pg1() fetches a
Mpi26PCIeIOUnitPage1_t into a caller-provided buffer, and may fetch
and write PhyData[] into that buffer depending on its sz argument.
It has one caller:
- mpt3sas_base.c:_base_assign_fw_reported_qd() passes
sizeof(Mpi26PCIeIOUnitPage1_t) as sz, but does not use PhyData[].
Signed-off-by: James Seo <james@xxxxxxxxxx>
---
drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
index 138f31def81d..84b167d49e34 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
@@ -3668,12 +3668,9 @@ typedef struct _MPI26_PCIE_IO_UNIT1_PHY_DATA {
#define MPI26_PCIEIOUNIT1_LINKFLAGS_SRNS_EN (0x02)
/*
- *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
- *one and check the value returned for NumPhys at runtime.
+ *Host code (drivers, BIOS, utilities, etc.) should check the value returned
+ *for NumPhys at runtime before using PhyData[].
*/
-#ifndef MPI26_PCIE_IOUNIT1_PHY_MAX
-#define MPI26_PCIE_IOUNIT1_PHY_MAX (1)
-#endif
typedef struct _MPI26_CONFIG_PAGE_PIOUNIT_1 {
MPI2_CONFIG_EXTENDED_PAGE_HEADER Header; /*0x00 */
@@ -3685,7 +3682,7 @@ typedef struct _MPI26_CONFIG_PAGE_PIOUNIT_1 {
U8 DMDReportPCIe; /*0x11 */
U16 Reserved2; /*0x12 */
MPI26_PCIE_IO_UNIT1_PHY_DATA
- PhyData[MPI26_PCIE_IOUNIT1_PHY_MAX];/*0x14 */
+ PhyData[]; /*0x14 */
} MPI26_CONFIG_PAGE_PIOUNIT_1,
*PTR_MPI26_CONFIG_PAGE_PIOUNIT_1,
Mpi26PCIeIOUnitPage1_t, *pMpi26PCIeIOUnitPage1_t;
--
2.39.2
