Using const is generally a good idea. Julia Lawall has created a list of always const and almost always const structs in the kernel sources. Link: https://lkml.org/lkml/2016/8/28/95 Add the most frequently used (> 50 cases) that are almost always or always const.
Showing the changes to scripts/const_structs.checkpatch (1 of 1 file). Show all
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| @@ -2,38 +2,63 @@ acpi_dock_ops · 1 unmodified line | |||
| 2 | address_space_operations | 2 | address_space_operations |
| 3 | backlight_ops | 3 | backlight_ops |
| 4 | block_device_operations | 4 | block_device_operations |
| 5 | clk_ops | ||
| 6 | comedi_lrange | ||
| 7 | component_ops | ||
| 5 | dentry_operations | 8 | dentry_operations |
| 6 | dev_pm_ops | 9 | dev_pm_ops |
| 7 | dma_map_ops | 10 | dma_map_ops |
| 11 | driver_info | ||
| 12 | drm_connector_funcs | ||
| 13 | drm_encoder_funcs | ||
| 14 | drm_encoder_helper_funcs | ||
| 15 | ethtool_ops | ||
| 8 | extent_io_ops | 16 | extent_io_ops |
| 9 | file_lock_operations | 17 | file_lock_operations |
| 10 | file_operations | 18 | file_operations |
| 11 | hv_ops | 19 | hv_ops |
| 12 | ide_dma_ops | 20 | ide_dma_ops |
| 21 | ide_port_ops | ||
| 22 | inode_operations | ||
| 13 | intel_dvo_dev_ops | 23 | intel_dvo_dev_ops |
| 24 | irq_domain_ops | ||
| 14 | item_operations | 25 | item_operations |
| 26 | iwl_cfg | ||
| 15 | iwl_ops | 27 | iwl_ops |
| 16 | kgdb_arch | 28 | kgdb_arch |
| 17 | kgdb_io | 29 | kgdb_io |
| 18 | kset_uevent_ops | 30 | kset_uevent_ops |
| 19 | lock_manager_operations | 31 | lock_manager_operations |
| 32 | machine_desc | ||
| 20 | microcode_ops | 33 | microcode_ops |
| 34 | mlxsw_reg_info | ||
| 21 | mtrr_ops | 35 | mtrr_ops |
| 22 | neigh_ops | 36 | neigh_ops |
| 37 | net_device_ops | ||
| 23 | nlmsvc_binding | 38 | nlmsvc_binding |
| 39 | nvkm_device_chip | ||
| 24 | of_device_id | 40 | of_device_id |
| 25 | pci_raw_ops | 41 | pci_raw_ops |
| 26 | pipe_buf_operations | 42 | pipe_buf_operations |
| 27 | platform_hibernation_ops | 43 | platform_hibernation_ops |
| 28 | platform_suspend_ops | 44 | platform_suspend_ops |
| 29 | proto_ops | 45 | proto_ops |
| 46 | regmap_access_table | ||
| 30 | rpc_pipe_ops | 47 | rpc_pipe_ops |
| 48 | rtc_class_ops | ||
| 49 | sd_desc | ||
| 31 | seq_operations | 50 | seq_operations |
| 51 | sirfsoc_padmux | ||
| 32 | snd_ac97_build_ops | 52 | snd_ac97_build_ops |
| 53 | snd_soc_component_driver | ||
| 33 | soc_pcmcia_socket_ops | 54 | soc_pcmcia_socket_ops |
| 34 | stacktrace_ops | 55 | stacktrace_ops |
| 35 | sysfs_ops | 56 | sysfs_ops |
| 36 | tty_operations | 57 | tty_operations |
| 37 | uart_ops | 58 | uart_ops |
| 38 | usb_mon_operations | 59 | usb_mon_operations |
| 60 | v4l2_ctrl_ops | ||
| 61 | v4l2_ioctl_ops | ||
| 62 | vm_operations_struct | ||
| 63 | wacom_features | ||
| 39 | wd_ops | 64 | wd_ops |