From ac5b7505de7013a4c572aa80d5b43db287fa0161 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:56:33 -0700 Subject: scsi: mpi3mr: struct mpi3_event_data_sas_topology_change_list: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct mpi3_event_data_sas_topology_change_list with a modern flexible array. Additionally add __counted_by annotation since phy_entry is only ever accessed in loops controlled by num_entries. For example: for (i = 0; i < event_data->num_entries; i++) { ... handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155637.3757036-1-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi/mpi30_ioc.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h index 028784949873..ae74fccc65b8 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h @@ -453,9 +453,6 @@ struct mpi3_event_data_sas_notify_primitive { #define MPI3_EVENT_NOTIFY_PRIMITIVE_POWER_LOSS_EXPECTED (0x02) #define MPI3_EVENT_NOTIFY_PRIMITIVE_RESERVED1 (0x03) #define MPI3_EVENT_NOTIFY_PRIMITIVE_RESERVED2 (0x04) -#ifndef MPI3_EVENT_SAS_TOPO_PHY_COUNT -#define MPI3_EVENT_SAS_TOPO_PHY_COUNT (1) -#endif struct mpi3_event_sas_topo_phy_entry { __le16 attached_dev_handle; u8 link_rate; @@ -496,7 +493,7 @@ struct mpi3_event_data_sas_topology_change_list { u8 start_phy_num; u8 exp_status; u8 io_unit_port; - struct mpi3_event_sas_topo_phy_entry phy_entry[MPI3_EVENT_SAS_TOPO_PHY_COUNT]; + struct mpi3_event_sas_topo_phy_entry phy_entry[] __counted_by(num_entries); }; #define MPI3_EVENT_SAS_TOPO_ES_NO_EXPANDER (0x00) -- cgit From 0e11f97bfddc608fd31d4fb7b8feaf74755d6372 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:56:34 -0700 Subject: scsi: mpi3mr: struct mpi3_event_data_pcie_topology_change_list: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct mpi3_event_data_pcie_topology_change_list with a modern flexible array. Additionally add __counted_by annotation since port_entry is only ever accessed in loops controlled by num_entries. For example: for (i = 0; i < event_data->num_entries; i++) { handle = le16_to_cpu(event_data->port_entry[i].attached_dev_handle); No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155637.3757036-2-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi/mpi30_ioc.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h index ae74fccc65b8..c9fa0d69b75f 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h @@ -542,9 +542,6 @@ struct mpi3_event_data_pcie_enumeration { #define MPI3_EVENT_PCIE_ENUM_ES_MAX_SWITCHES_EXCEED (0x40000000) #define MPI3_EVENT_PCIE_ENUM_ES_MAX_DEVICES_EXCEED (0x20000000) #define MPI3_EVENT_PCIE_ENUM_ES_RESOURCES_EXHAUSTED (0x10000000) -#ifndef MPI3_EVENT_PCIE_TOPO_PORT_COUNT -#define MPI3_EVENT_PCIE_TOPO_PORT_COUNT (1) -#endif struct mpi3_event_pcie_topo_port_entry { __le16 attached_dev_handle; u8 port_status; @@ -585,7 +582,7 @@ struct mpi3_event_data_pcie_topology_change_list { u8 switch_status; u8 io_unit_port; __le32 reserved0c; - struct mpi3_event_pcie_topo_port_entry port_entry[MPI3_EVENT_PCIE_TOPO_PORT_COUNT]; + struct mpi3_event_pcie_topo_port_entry port_entry[] __counted_by(num_entries); }; #define MPI3_EVENT_PCIE_TOPO_SS_NO_PCIE_SWITCH (0x00) -- cgit From 41bb96296f9d3a92f3b52bcf502d6c0e86fa84a0 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:56:35 -0700 Subject: scsi: mpi3mr: struct mpi3_sas_io_unit_page0: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct mpi3_sas_io_unit_page0 with a modern flexible array. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155637.3757036-3-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h index 6a19e17eb1a7..66cca35d8e52 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h @@ -1565,16 +1565,13 @@ struct mpi3_sas_io_unit0_phy_data { __le32 reserved10; }; -#ifndef MPI3_SAS_IO_UNIT0_PHY_MAX -#define MPI3_SAS_IO_UNIT0_PHY_MAX (1) -#endif struct mpi3_sas_io_unit_page0 { struct mpi3_config_page_header header; __le32 reserved08; u8 num_phys; u8 init_status; __le16 reserved0e; - struct mpi3_sas_io_unit0_phy_data phy_data[MPI3_SAS_IO_UNIT0_PHY_MAX]; + struct mpi3_sas_io_unit0_phy_data phy_data[]; }; #define MPI3_SASIOUNIT0_PAGEVERSION (0x00) -- cgit From a62193abae75f3c3f68bbc7d3343751644140556 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 11 Jul 2024 08:56:36 -0700 Subject: scsi: mpi3mr: struct mpi3_sas_io_unit_page1: Replace 1-element array with flexible array Replace the deprecated[1] use of a 1-element array in struct mpi3_sas_io_unit_page1 with a modern flexible array. No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20240711155637.3757036-4-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Martin K. Petersen --- drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h index 66cca35d8e52..4b7a8f6314a3 100644 --- a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h +++ b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h @@ -1603,9 +1603,6 @@ struct mpi3_sas_io_unit1_phy_data { __le32 reserved08; }; -#ifndef MPI3_SAS_IO_UNIT1_PHY_MAX -#define MPI3_SAS_IO_UNIT1_PHY_MAX (1) -#endif struct mpi3_sas_io_unit_page1 { struct mpi3_config_page_header header; __le16 control_flags; @@ -1615,7 +1612,7 @@ struct mpi3_sas_io_unit_page1 { u8 num_phys; u8 sata_max_q_depth; __le16 reserved12; - struct mpi3_sas_io_unit1_phy_data phy_data[MPI3_SAS_IO_UNIT1_PHY_MAX]; + struct mpi3_sas_io_unit1_phy_data phy_data[]; }; #define MPI3_SASIOUNIT1_PAGEVERSION (0x00) -- cgit