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Message-ID: <alpine.DEB.2.10.1511082220500.2583@hadrien> Date: Sun, 8 Nov 2015 22:24:49 +0000 (GMT) From: Julia Lawall <julia.lawall@...6.fr> To: Dan Carpenter <dan.carpenter@...cle.com> cc: Julia Lawall <Julia.Lawall@...6.fr>, Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>, kernel-janitors@...r.kernel.org, Tomi Valkeinen <tomi.valkeinen@...com>, linux-geode@...ts.infradead.org, linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] video: constify geode ops structures On Mon, 9 Nov 2015, Dan Carpenter wrote: > Cool. So, in grsec they use a GCC plugin to make these const > automatically since they only contain function pointers. There about > 100 struct types marked as __no_const. Kees would like to adopt the > grsec pluggin approach I expect. Do you have an idea how many structs > only contain function pointers or how many consts we would have to add > to get the same effect without the plugin? My list has 373 type names. In the list there are counts for good (already const) and bad (not const). The sum of the bad values is 2467. The list is below. julia cpuidle_ops: good: 0, bad: 1 xen_pci_frontend_ops: good: 0, bad: 1 pch_dev_ops: good: 0, bad: 1 s3c_ide_platdata: good: 0, bad: 1 bfin_cpu_pm_fns: good: 0, bad: 1 meta_type_ops: good: 0, bad: 1 bnx2x_func_sp_drv_ops: good: 0, bad: 1 hfi1_filter_array: good: 0, bad: 1 ttusbdecfe_config: good: 0, bad: 1 au1k_irda_platform_data: good: 0, bad: 1 dao_rsc_ops: good: 0, bad: 1 mic_hw_intr_ops: good: 0, bad: 1 mic_smpt_ops: good: 0, bad: 1 scpi_ops: good: 0, bad: 1 fmc_operations: good: 0, bad: 1 geode_dc_ops: good: 0, bad: 1 superhyway_ops: good: 0, bad: 1 vsock_transport: good: 0, bad: 1 ti_clk_ll_ops: good: 0, bad: 1 enclosure_component_callbacks: good: 0, bad: 1 dai_rsc_ops: good: 0, bad: 1 cfs_psdev_ops: good: 0, bad: 1 x86_msi_ops: good: 0, bad: 1 intel_sst_ops: good: 0, bad: 1 nf_ct_event_notifier: good: 0, bad: 1 geode_vid_ops: good: 0, bad: 1 menelaus_platform_data: good: 0, bad: 1 mipi_dsim_master_ops: good: 0, bad: 1 in_cache_ops: good: 0, bad: 1 ste_modem_dev_cb: good: 0, bad: 1 kernfs_syscall_ops: good: 0, bad: 1 amixer_rsc_ops: good: 0, bad: 1 nes_cm_ops: good: 0, bad: 1 radio_tea5777_ops: good: 0, bad: 1 x86_cpuinit_ops: good: 0, bad: 1 hpc_ops: good: 0, bad: 1 vexpress_config_bridge_ops: good: 0, bad: 1 x86_platform_ops: good: 0, bad: 1 powercap_zone_ops: good: 0, bad: 1 as102_priv_ops_t: good: 0, bad: 1 lpc32xx_slc_platform_data: good: 0, bad: 1 src_rsc_ops: good: 0, bad: 1 pxafb_layer_ops: good: 0, bad: 1 ds278x_battery_ops: good: 0, bad: 1 hnae_buf_ops: good: 0, bad: 1 mcp_ops: good: 0, bad: 1 nfnl_ct_hook: good: 0, bad: 1 xpc_interface: good: 0, bad: 1 vpbe_device_ops: good: 0, bad: 1 stmp3xxx_wdt_pdata: good: 0, bad: 1 cosm_hw_ops: good: 0, bad: 1 fm10k_iov_ops: good: 0, bad: 1 s3fwrn5_phy_ops: good: 0, bad: 1 tc6387xb_platform_data: good: 0, bad: 1 visorchipset_busdev_responders: good: 0, bad: 1 csio_hw_chip_ops: good: 0, bad: 1 visorchipset_busdev_notifiers: good: 0, bad: 1 concap_device_ops: good: 0, bad: 1 stv6110x_devctl: good: 0, bad: 1 powercap_zone_constraint_ops: good: 0, bad: 1 eg_cache_ops: good: 0, bad: 1 trace_lock_handler: good: 0, bad: 1 gnttab_ops: good: 0, bad: 1 ldlm_valblock_ops: good: 0, bad: 1 rtl_btc_ops: good: 0, bad: 1 max197_platform_data: good: 0, bad: 1 qla_tgt_func_tmpl: good: 0, bad: 1 arm_pmu_platdata: good: 0, bad: 1 amd_sched_backend_ops: good: 0, bad: 1 da903x_chip_ops: good: 0, bad: 1 hnae_ae_ops: good: 0, bad: 1 ds2404_chip_ops: good: 0, bad: 1 cardbus_type: good: 0, bad: 1 sh_mobile_lcdc_sys_bus_ops: good: 0, bad: 1 ieee802154_llsec_ops: good: 0, bad: 1 kvm_mips_callbacks: good: 0, bad: 1 nf_exp_event_notifier: good: 0, bad: 1 usb_mon_operations: good: 0, bad: 1 nlmsvc_binding: good: 0, bad: 1 cleancache_ops: good: 0, bad: 1 bfa_fcs_mod_s: good: 0, bad: 1 dac_ops: good: 0, bad: 1 sst_block_ops: good: 0, bad: 1 lane2_ops: good: 0, bad: 1 llog_operations: good: 0, bad: 1 concap_proto_ops: good: 0, bad: 1 x86_io_apic_ops: good: 0, bad: 1 od_ops: good: 0, bad: 1 omap_mcbsp_ops: good: 0, bad: 1 cpuidle_exynos_data: good: 0, bad: 1 pci_platform_pm_ops: good: 0, bad: 1 lpc32xx_mlc_platform_data: good: 0, bad: 1 dw_spi_dma_ops: good: 0, bad: 1 mmp_overlay_ops: good: 0, bad: 1 iommu_table_group_ops: good: 0, bad: 1 md_cluster_operations: good: 0, bad: 1 cpu_pm_ops: good: 0, bad: 1 mxl111sf_demod_config: good: 0, bad: 1 srcimp_rsc_ops: good: 0, bad: 1 dca_ops: good: 0, bad: 1 mcfqspi_cs_control: good: 0, bad: 1 skl_dsp_fw_ops: good: 0, bad: 1 iser_reg_ops: good: 0, bad: 2 saa7146_use_ops: good: 0, bad: 2 qlcnic_dcb_ops: good: 0, bad: 2 fm10k_mac_ops: good: 0, bad: 2 v3020_chip_ops: good: 0, bad: 2 intel_mid_ops: good: 0, bad: 2 wlcore_ops: good: 0, bad: 2 au1200fb_platdata: good: 0, bad: 2 mxr_layer_ops: good: 0, bad: 2 ocfs2_stack_operations: good: 0, bad: 2 kvm_pmu_ops: good: 0, bad: 2 hdmi_phy_ops: good: 0, bad: 2 rtl_intf_ops: good: 0, bad: 2 mxc_extra_irq: good: 0, bad: 2 hwicap_driver_config: good: 0, bad: 2 dev_power_governor: good: 0, bad: 2 ptlrpc_ctx_ops: good: 0, bad: 2 olpc_ec_driver: good: 0, bad: 2 xpc_arch_operations: good: 0, bad: 2 cal_chipset_ops: good: 0, bad: 2 mal_commac_ops: good: 0, bad: 2 mmc_pwrseq_ops: good: 0, bad: 2 mem_access: good: 0, bad: 2 fd_dma_ops: good: 0, bad: 2 mvumi_instance_template: good: 0, bad: 2 imx_pwm_data: good: 0, bad: 2 nfc_llc_ops: good: 0, bad: 2 amba_pl010_data: good: 0, bad: 2 emitter: good: 0, bad: 2 fc_rport_operations: good: 0, bad: 2 adfs_dir_ops: good: 0, bad: 2 mpt_pci_driver: good: 0, bad: 2 gpio_methods: good: 0, bad: 2 s5p_mfc_hw_cmds: good: 0, bad: 2 bfin_sport_transfer_ops: good: 0, bad: 2 ct_timer_ops: good: 0, bad: 2 cmac_ops: good: 0, bad: 2 vio_driver_ops: good: 0, bad: 2 dummy_timer_ops: good: 0, bad: 2 mdesc_mem_ops: good: 0, bad: 2 uprobe_xol_ops: good: 0, bad: 2 dcon_platform_data: good: 0, bad: 2 vmci_transport_notify_ops: good: 0, bad: 2 w100_tg_info: good: 0, bad: 2 knav_range_ops: good: 0, bad: 2 drm_dp_mst_topology_cbs: good: 0, bad: 2 snd_rawmidi_global_ops: good: 0, bad: 2 s5p_mfc_codec_ops: good: 0, bad: 2 hwbus_ops: good: 0, bad: 2 ufs_qcom_phy_specific_ops: good: 0, bad: 2 nfc_digital_ops: good: 0, bad: 2 alpha_agp_ops: good: 0, bad: 2 ath_ps_ops: good: 0, bad: 2 hmcdrv_ftp_ops: good: 0, bad: 2 spu_context_ops: good: 0, bad: 2 snd_i2c_ops: good: 0, bad: 2 md_ops: good: 0, bad: 2 sunhv_ops: good: 0, bad: 2 uartlite_reg_ops: good: 0, bad: 2 ptlrpc_sec_sops: good: 0, bad: 2 pci_bios_ops: good: 0, bad: 2 microcode_ops: good: 0, bad: 2 s5p_mfc_hw_ops: good: 0, bad: 2 of_pdt_ops: good: 0, bad: 2 wl1271_if_operations: good: 0, bad: 2 otg_fsm_ops: good: 0, bad: 2 nfsd4_callback_ops: good: 0, bad: 2 abx500_ops: good: 0, bad: 2 m48t86_ops: good: 0, bad: 2 ptlrpc_sec_cops: good: 0, bad: 2 mbus_hw_ops: good: 0, bad: 2 fcoe_sysfs_function_template: good: 0, bad: 2 smp_ops: good: 1, bad: 1 pv_time_ops: good: 1, bad: 1 wl1251_if_operations: good: 1, bad: 1 pv_init_ops: good: 1, bad: 1 xfs_nameops: good: 1, bad: 1 ixgbe_mbx_operations: good: 1, bad: 1 dm_space_map: good: 0, bad: 3 at91_pinctrl_mux_ops: good: 0, bad: 3 ipmi_user_hndl: good: 0, bad: 3 brcmf_bus_ops: good: 0, bad: 3 ixgbe_eeprom_operations: good: 0, bad: 3 fsi_stream_handler: good: 0, bad: 3 xgene_mac_ops: good: 0, bad: 3 sbc_ops: good: 0, bad: 3 snd_vx_ops: good: 0, bad: 3 go7007_hpi_ops: good: 0, bad: 3 ixgbe_phy_operations: good: 0, bad: 3 sh_irda_xir_func: good: 0, bad: 3 matrox_switch: good: 0, bad: 3 qlcnic_hardware_ops: good: 0, bad: 3 btrfs_free_space_op: good: 0, bad: 3 snd_compr_ops: good: 0, bad: 3 xgene_port_ops: good: 0, bad: 3 nfsd4_client_tracking_ops: good: 0, bad: 3 samsung_gpio_pm: good: 0, bad: 3 drbg_state_ops: good: 0, bad: 3 nilfs_sc_operations: good: 0, bad: 3 snd_i2c_bit_ops: good: 0, bad: 3 snd_midi_op: good: 0, bad: 3 fatent_operations: good: 0, bad: 3 mwifiex_if_ops: good: 0, bad: 3 pci_port_ops: good: 0, bad: 3 portals_handle_ops: good: 0, bad: 3 logfs_block_ops: good: 0, bad: 3 nfc_hci_ops: good: 0, bad: 3 ace_reg_ops: good: 0, bad: 3 cx2341x_handler_ops: good: 0, bad: 3 conf_printer: good: 0, bad: 3 ui_progress_ops: good: 0, bad: 3 trace_sched_handler: good: 0, bad: 3 perf_error_ops: good: 0, bad: 3 perf_guest_info_callbacks: good: 0, bad: 3 aes_ops: good: 0, bad: 3 xfrm_replay: good: 0, bad: 3 pccard_resource_ops: good: 0, bad: 3 qtree_fmt_operations: good: 0, bad: 3 ui_helpline: good: 0, bad: 3 machine_ops: good: 1, bad: 2 bpf_verifier_ops: good: 2, bad: 1 sn_pcibus_provider: good: 0, bad: 4 sas_function_template: good: 0, bad: 4 cfs_hash_hlist_ops: good: 0, bad: 4 io_pgtable_init_fns: good: 0, bad: 4 rproc_ops: good: 0, bad: 4 fb_tile_ops: good: 0, bad: 4 sst_ops: good: 0, bad: 4 usb_phy_io_ops: good: 0, bad: 4 raw3270_fn: good: 0, bad: 4 radeon_audio_basic_funcs: good: 0, bad: 4 qlcnic_nic_template: good: 0, bad: 4 board_ops: good: 0, bad: 4 irda_platform_data: good: 0, bad: 4 drm_encoder_slave_funcs: good: 0, bad: 4 rchan_callbacks: good: 0, bad: 4 hppa_dma_ops: good: 0, bad: 4 nfcmrvl_if_ops: good: 0, bad: 4 iommu_gather_ops: good: 0, bad: 4 cm_ll_data: good: 0, bad: 4 plat_sci_port_ops: good: 0, bad: 4 sas_domain_function_template: good: 0, bad: 4 ib_dma_mapping_ops: good: 0, bad: 4 psc_ops: good: 0, bad: 4 z8530_irqhandler: good: 0, bad: 4 prm_ll_data: good: 0, bad: 4 ixgbe_mac_operations: good: 1, bad: 3 v4l2_subdev_sensor_ops: good: 1, bad: 3 of_bus: good: 1, bad: 3 e1000_mac_operations: good: 3, bad: 1 mipi_dsi_host_ops: good: 3, bad: 1 rpc_xprt_ops: good: 0, bad: 5 ep93xx_spi_chip_ops: good: 0, bad: 5 item_operations: good: 0, bad: 5 page_ext_operations: good: 0, bad: 5 bcache_ops: good: 0, bad: 5 ocfs2_extent_tree_operations: good: 0, bad: 5 ion_heap_ops: good: 0, bad: 5 svc_xprt_ops: good: 0, bad: 5 clkdm_ops: good: 0, bad: 5 nfc_ops: good: 0, bad: 5 pwrdm_ops: good: 0, bad: 5 megasas_instance_template: good: 0, bad: 5 esp_driver_ops: good: 4, bad: 1 exynos_drm_crtc_ops: good: 4, bad: 1 lu_device_operations: good: 4, bad: 1 e1000_nvm_operations: good: 4, bad: 1 cl_device_operations: good: 4, bad: 1 ins_ops: good: 0, bad: 6 exynos_drm_ipp_ops: good: 0, bad: 6 snd_tea575x_ops: good: 0, bad: 6 intel_dvo_dev_ops: good: 0, bad: 6 cfs_hash_lock_ops: good: 0, bad: 6 hid_ll_driver: good: 0, bad: 6 ftdi_sio_quirk: good: 0, bad: 6 e1000_phy_operations: good: 5, bad: 1 mbox_chan_ops: good: 5, bad: 1 kset_uevent_ops: good: 5, bad: 1 crypt_iv_operations: good: 0, bad: 7 sa1100_port_fns: good: 0, bad: 7 radeon_audio_funcs: good: 0, bad: 7 rsc_ops: good: 0, bad: 7 dma_ops: good: 0, bad: 7 nfc_phy_ops: good: 0, bad: 7 fsnotify_ops: good: 6, bad: 1 cl_lock_operations: good: 6, bad: 1 pcie_host_ops: good: 0, bad: 8 action_ops: good: 0, bad: 8 cpu_user_fns: good: 0, bad: 8 snd_info_entry_ops: good: 0, bad: 8 cfs_hash_ops: good: 0, bad: 8 sparc32_cachetlb_ops: good: 5, bad: 3 virtio_config_ops: good: 6, bad: 2 xfs_item_ops: good: 7, bad: 1 msi_domain_ops: good: 0, bad: 9 plat_lcd_data: good: 0, bad: 9 rtl_hal_ops: good: 0, bad: 9 ttm_bo_driver: good: 0, bad: 10 usbhs_pkt_handle: good: 0, bad: 10 usb_protocol_ops: good: 0, bad: 10 clkops: good: 6, bad: 4 drm_bridge_funcs: good: 7, bad: 3 fence_ops: good: 9, bad: 1 omap_dss_driver: good: 0, bad: 11 dma_buf_ops: good: 5, bad: 6 thermal_zone_of_device_ops: good: 7, bad: 4 mmu_notifier_ops: good: 8, bad: 3 kvm_io_device_ops: good: 10, bad: 1 ttm_backend_func: good: 0, bad: 12 access_method: good: 0, bad: 12 event_trigger_ops: good: 0, bad: 12 stacktrace_ops: good: 10, bad: 2 isp_operations: good: 0, bad: 13 hv_ops: good: 11, bad: 2 ftrace_probe_ops: good: 0, bad: 14 v4l2_m2m_ops: good: 2, bad: 12 thermal_cooling_device_ops: good: 7, bad: 7 plat_smp_ops: good: 0, bad: 15 clk_hw_omap_ops: good: 14, bad: 1 videobuf_queue_ops: good: 1, bad: 15 drm_plane_helper_funcs: good: 15, bad: 1 pccard_operations: good: 0, bad: 17 mii_phy_ops: good: 0, bad: 18 radeon_asic_ring: good: 0, bad: 19 drm_fb_helper_funcs: good: 18, bad: 1 reset_control_ops: good: 0, bad: 20 ide_dma_ops: good: 18, bad: 2 thermal_zone_device_ops: good: 0, bad: 21 drm_framebuffer_funcs: good: 15, bad: 6 drm_plane_funcs: good: 18, bad: 4 lcd_ops: good: 0, bad: 24 intel_uncore_ops: good: 0, bad: 24 export_operations: good: 24, bad: 2 drm_mode_config_funcs: good: 25, bad: 2 header_ops: good: 26, bad: 3 iio_buffer_setup_ops: good: 29, bad: 1 usb_gadget_ops: good: 31, bad: 2 mmc_host_ops: good: 21, bad: 13 drm_crtc_funcs: good: 28, bad: 6 rfkill_ops: good: 29, bad: 5 drm_crtc_helper_funcs: good: 30, bad: 4 usb_ep_ops: good: 18, bad: 18 tty_port_operations: good: 33, bad: 4 configfs_group_operations: good: 0, bad: 38 v4l2_subdev_internal_ops: good: 37, bad: 1 configfs_item_operations: good: 0, bad: 44 platform_suspend_ops: good: 41, bad: 4 snd_ac97_bus_ops: good: 0, bad: 49 pinctrl_ops: good: 40, bad: 9 dentry_operations: good: 52, bad: 1 pci_error_handlers: good: 46, bad: 9 snd_rawmidi_ops: good: 0, bad: 68 drm_connector_helper_funcs: good: 50, bad: 18 drm_encoder_funcs: good: 61, bad: 14 drm_connector_funcs: good: 56, bad: 20 drm_encoder_helper_funcs: good: 65, bad: 12 vb2_ops: good: 20, bad: 59 snd_soc_ops: good: 2, bad: 85 snd_device_ops: good: 0, bad: 93 v4l2_subdev_video_ops: good: 81, bad: 32 pci_ops: good: 0, bad: 121 rtc_class_ops: good: 117, bad: 31 v4l2_ctrl_ops: good: 198, bad: 6 inode_operations: good: 209, bad: 5 snd_soc_dai_ops: good: 226, bad: 18 ethtool_ops: good: 239, bad: 11 regulator_ops: good: 15, bad: 237 snd_pcm_ops: good: 7, bad: 278 clk_ops: good: 257, bad: 71 seq_operations: good: 328, bad: 1 dev_pm_ops: good: 337, bad: 19 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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