From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/parport/procfs.c | 623 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 623 insertions(+) create mode 100644 drivers/parport/procfs.c (limited to 'drivers/parport/procfs.c') diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c new file mode 100644 index 000000000..d740eba3c --- /dev/null +++ b/drivers/parport/procfs.c @@ -0,0 +1,623 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Sysctl interface for parport devices. + * + * Authors: David Campbell + * Tim Waugh + * Philip Blundell + * Andrea Arcangeli + * Riccardo Facchetti + * + * based on work by Grant Guenther + * and Philip Blundell + * + * Cleaned up include files - Russell King + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS) + +#define PARPORT_MIN_TIMESLICE_VALUE 1ul +#define PARPORT_MAX_TIMESLICE_VALUE ((unsigned long) HZ) +#define PARPORT_MIN_SPINTIME_VALUE 1 +#define PARPORT_MAX_SPINTIME_VALUE 1000 + +static int do_active_device(struct ctl_table *table, int write, + void *result, size_t *lenp, loff_t *ppos) +{ + struct parport *port = (struct parport *)table->extra1; + char buffer[256]; + struct pardevice *dev; + int len = 0; + + if (write) /* can't happen anyway */ + return -EACCES; + + if (*ppos) { + *lenp = 0; + return 0; + } + + for (dev = port->devices; dev ; dev = dev->next) { + if(dev == port->cad) { + len += sprintf(buffer, "%s\n", dev->name); + } + } + + if(!len) { + len += sprintf(buffer, "%s\n", "none"); + } + + if (len > *lenp) + len = *lenp; + else + *lenp = len; + + *ppos += len; + memcpy(result, buffer, len); + return 0; +} + +#ifdef CONFIG_PARPORT_1284 +static int do_autoprobe(struct ctl_table *table, int write, + void *result, size_t *lenp, loff_t *ppos) +{ + struct parport_device_info *info = table->extra2; + const char *str; + char buffer[256]; + int len = 0; + + if (write) /* permissions stop this */ + return -EACCES; + + if (*ppos) { + *lenp = 0; + return 0; + } + + if ((str = info->class_name) != NULL) + len += sprintf (buffer + len, "CLASS:%s;\n", str); + + if ((str = info->model) != NULL) + len += sprintf (buffer + len, "MODEL:%s;\n", str); + + if ((str = info->mfr) != NULL) + len += sprintf (buffer + len, "MANUFACTURER:%s;\n", str); + + if ((str = info->description) != NULL) + len += sprintf (buffer + len, "DESCRIPTION:%s;\n", str); + + if ((str = info->cmdset) != NULL) + len += sprintf (buffer + len, "COMMAND SET:%s;\n", str); + + if (len > *lenp) + len = *lenp; + else + *lenp = len; + + *ppos += len; + + memcpy(result, buffer, len); + return 0; +} +#endif /* IEEE1284.3 support. */ + +static int do_hardware_base_addr(struct ctl_table *table, int write, + void *result, size_t *lenp, loff_t *ppos) +{ + struct parport *port = (struct parport *)table->extra1; + char buffer[20]; + int len = 0; + + if (*ppos) { + *lenp = 0; + return 0; + } + + if (write) /* permissions prevent this anyway */ + return -EACCES; + + len += sprintf (buffer, "%lu\t%lu\n", port->base, port->base_hi); + + if (len > *lenp) + len = *lenp; + else + *lenp = len; + + *ppos += len; + memcpy(result, buffer, len); + return 0; +} + +static int do_hardware_irq(struct ctl_table *table, int write, + void *result, size_t *lenp, loff_t *ppos) +{ + struct parport *port = (struct parport *)table->extra1; + char buffer[20]; + int len = 0; + + if (*ppos) { + *lenp = 0; + return 0; + } + + if (write) /* permissions prevent this anyway */ + return -EACCES; + + len += sprintf (buffer, "%d\n", port->irq); + + if (len > *lenp) + len = *lenp; + else + *lenp = len; + + *ppos += len; + memcpy(result, buffer, len); + return 0; +} + +static int do_hardware_dma(struct ctl_table *table, int write, + void *result, size_t *lenp, loff_t *ppos) +{ + struct parport *port = (struct parport *)table->extra1; + char buffer[20]; + int len = 0; + + if (*ppos) { + *lenp = 0; + return 0; + } + + if (write) /* permissions prevent this anyway */ + return -EACCES; + + len += sprintf (buffer, "%d\n", port->dma); + + if (len > *lenp) + len = *lenp; + else + *lenp = len; + + *ppos += len; + memcpy(result, buffer, len); + return 0; +} + +static int do_hardware_modes(struct ctl_table *table, int write, + void *result, size_t *lenp, loff_t *ppos) +{ + struct parport *port = (struct parport *)table->extra1; + char buffer[40]; + int len = 0; + + if (*ppos) { + *lenp = 0; + return 0; + } + + if (write) /* permissions prevent this anyway */ + return -EACCES; + + { +#define printmode(x) \ +do { \ + if (port->modes & PARPORT_MODE_##x) \ + len += sprintf(buffer + len, "%s%s", f++ ? "," : "", #x); \ +} while (0) + int f = 0; + printmode(PCSPP); + printmode(TRISTATE); + printmode(COMPAT); + printmode(EPP); + printmode(ECP); + printmode(DMA); +#undef printmode + } + buffer[len++] = '\n'; + + if (len > *lenp) + len = *lenp; + else + *lenp = len; + + *ppos += len; + memcpy(result, buffer, len); + return 0; +} + +#define PARPORT_PORT_DIR(CHILD) { .procname = NULL, .mode = 0555, .child = CHILD } +#define PARPORT_PARPORT_DIR(CHILD) { .procname = "parport", \ + .mode = 0555, .child = CHILD } +#define PARPORT_DEV_DIR(CHILD) { .procname = "dev", .mode = 0555, .child = CHILD } +#define PARPORT_DEVICES_ROOT_DIR { .procname = "devices", \ + .mode = 0555, .child = NULL } + +static const unsigned long parport_min_timeslice_value = +PARPORT_MIN_TIMESLICE_VALUE; + +static const unsigned long parport_max_timeslice_value = +PARPORT_MAX_TIMESLICE_VALUE; + +static const int parport_min_spintime_value = +PARPORT_MIN_SPINTIME_VALUE; + +static const int parport_max_spintime_value = +PARPORT_MAX_SPINTIME_VALUE; + + +struct parport_sysctl_table { + struct ctl_table_header *sysctl_header; + struct ctl_table vars[12]; + struct ctl_table device_dir[2]; + struct ctl_table port_dir[2]; + struct ctl_table parport_dir[2]; + struct ctl_table dev_dir[2]; +}; + +static const struct parport_sysctl_table parport_sysctl_template = { + .sysctl_header = NULL, + { + { + .procname = "spintime", + .data = NULL, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = (void*) &parport_min_spintime_value, + .extra2 = (void*) &parport_max_spintime_value + }, + { + .procname = "base-addr", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_hardware_base_addr + }, + { + .procname = "irq", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_hardware_irq + }, + { + .procname = "dma", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_hardware_dma + }, + { + .procname = "modes", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_hardware_modes + }, + PARPORT_DEVICES_ROOT_DIR, +#ifdef CONFIG_PARPORT_1284 + { + .procname = "autoprobe", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_autoprobe + }, + { + .procname = "autoprobe0", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_autoprobe + }, + { + .procname = "autoprobe1", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_autoprobe + }, + { + .procname = "autoprobe2", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_autoprobe + }, + { + .procname = "autoprobe3", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_autoprobe + }, +#endif /* IEEE 1284 support */ + {} + }, + { + { + .procname = "active", + .data = NULL, + .maxlen = 0, + .mode = 0444, + .proc_handler = do_active_device + }, + {} + }, + { + PARPORT_PORT_DIR(NULL), + {} + }, + { + PARPORT_PARPORT_DIR(NULL), + {} + }, + { + PARPORT_DEV_DIR(NULL), + {} + } +}; + +struct parport_device_sysctl_table +{ + struct ctl_table_header *sysctl_header; + struct ctl_table vars[2]; + struct ctl_table device_dir[2]; + struct ctl_table devices_root_dir[2]; + struct ctl_table port_dir[2]; + struct ctl_table parport_dir[2]; + struct ctl_table dev_dir[2]; +}; + +static const struct parport_device_sysctl_table +parport_device_sysctl_template = { + .sysctl_header = NULL, + { + { + .procname = "timeslice", + .data = NULL, + .maxlen = sizeof(unsigned long), + .mode = 0644, + .proc_handler = proc_doulongvec_ms_jiffies_minmax, + .extra1 = (void*) &parport_min_timeslice_value, + .extra2 = (void*) &parport_max_timeslice_value + }, + }, + { + { + .procname = NULL, + .data = NULL, + .maxlen = 0, + .mode = 0555, + .child = NULL + }, + {} + }, + { + PARPORT_DEVICES_ROOT_DIR, + {} + }, + { + PARPORT_PORT_DIR(NULL), + {} + }, + { + PARPORT_PARPORT_DIR(NULL), + {} + }, + { + PARPORT_DEV_DIR(NULL), + {} + } +}; + +struct parport_default_sysctl_table +{ + struct ctl_table_header *sysctl_header; + struct ctl_table vars[3]; + struct ctl_table default_dir[2]; + struct ctl_table parport_dir[2]; + struct ctl_table dev_dir[2]; +}; + +static struct parport_default_sysctl_table +parport_default_sysctl_table = { + .sysctl_header = NULL, + { + { + .procname = "timeslice", + .data = &parport_default_timeslice, + .maxlen = sizeof(parport_default_timeslice), + .mode = 0644, + .proc_handler = proc_doulongvec_ms_jiffies_minmax, + .extra1 = (void*) &parport_min_timeslice_value, + .extra2 = (void*) &parport_max_timeslice_value + }, + { + .procname = "spintime", + .data = &parport_default_spintime, + .maxlen = sizeof(parport_default_spintime), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = (void*) &parport_min_spintime_value, + .extra2 = (void*) &parport_max_spintime_value + }, + {} + }, + { + { + .procname = "default", + .mode = 0555, + .child = parport_default_sysctl_table.vars + }, + {} + }, + { + PARPORT_PARPORT_DIR(parport_default_sysctl_table.default_dir), + {} + }, + { + PARPORT_DEV_DIR(parport_default_sysctl_table.parport_dir), + {} + } +}; + + +int parport_proc_register(struct parport *port) +{ + struct parport_sysctl_table *t; + int i; + + t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL); + if (t == NULL) + return -ENOMEM; + + t->device_dir[0].extra1 = port; + + for (i = 0; i < 5; i++) + t->vars[i].extra1 = port; + + t->vars[0].data = &port->spintime; + t->vars[5].child = t->device_dir; + + for (i = 0; i < 5; i++) + t->vars[6 + i].extra2 = &port->probe_info[i]; + + t->port_dir[0].procname = port->name; + + t->port_dir[0].child = t->vars; + t->parport_dir[0].child = t->port_dir; + t->dev_dir[0].child = t->parport_dir; + + t->sysctl_header = register_sysctl_table(t->dev_dir); + if (t->sysctl_header == NULL) { + kfree(t); + t = NULL; + } + port->sysctl_table = t; + return 0; +} + +int parport_proc_unregister(struct parport *port) +{ + if (port->sysctl_table) { + struct parport_sysctl_table *t = port->sysctl_table; + port->sysctl_table = NULL; + unregister_sysctl_table(t->sysctl_header); + kfree(t); + } + return 0; +} + +int parport_device_proc_register(struct pardevice *device) +{ + struct parport_device_sysctl_table *t; + struct parport * port = device->port; + + t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL); + if (t == NULL) + return -ENOMEM; + + t->dev_dir[0].child = t->parport_dir; + t->parport_dir[0].child = t->port_dir; + t->port_dir[0].procname = port->name; + t->port_dir[0].child = t->devices_root_dir; + t->devices_root_dir[0].child = t->device_dir; + + t->device_dir[0].procname = device->name; + t->device_dir[0].child = t->vars; + t->vars[0].data = &device->timeslice; + + t->sysctl_header = register_sysctl_table(t->dev_dir); + if (t->sysctl_header == NULL) { + kfree(t); + t = NULL; + } + device->sysctl_table = t; + return 0; +} + +int parport_device_proc_unregister(struct pardevice *device) +{ + if (device->sysctl_table) { + struct parport_device_sysctl_table *t = device->sysctl_table; + device->sysctl_table = NULL; + unregister_sysctl_table(t->sysctl_header); + kfree(t); + } + return 0; +} + +static int __init parport_default_proc_register(void) +{ + int ret; + + parport_default_sysctl_table.sysctl_header = + register_sysctl_table(parport_default_sysctl_table.dev_dir); + if (!parport_default_sysctl_table.sysctl_header) + return -ENOMEM; + ret = parport_bus_init(); + if (ret) { + unregister_sysctl_table(parport_default_sysctl_table. + sysctl_header); + return ret; + } + return 0; +} + +static void __exit parport_default_proc_unregister(void) +{ + if (parport_default_sysctl_table.sysctl_header) { + unregister_sysctl_table(parport_default_sysctl_table. + sysctl_header); + parport_default_sysctl_table.sysctl_header = NULL; + } + parport_bus_exit(); +} + +#else /* no sysctl or no procfs*/ + +int parport_proc_register(struct parport *pp) +{ + return 0; +} + +int parport_proc_unregister(struct parport *pp) +{ + return 0; +} + +int parport_device_proc_register(struct pardevice *device) +{ + return 0; +} + +int parport_device_proc_unregister(struct pardevice *device) +{ + return 0; +} + +static int __init parport_default_proc_register (void) +{ + return parport_bus_init(); +} + +static void __exit parport_default_proc_unregister (void) +{ + parport_bus_exit(); +} +#endif + +subsys_initcall(parport_default_proc_register) +module_exit(parport_default_proc_unregister) -- cgit v1.2.3