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-rw-r--r--drivers/char/Kconfig8
-rw-r--r--drivers/char/Makefile2
-rw-r--r--drivers/char/hw_random/via-rng.c2
-rw-r--r--drivers/char/i8k.c1023
-rw-r--r--drivers/char/ipmi/ipmi_powernv.c39
-rw-r--r--drivers/char/ipmi/ipmi_watchdog.c6
-rw-r--r--drivers/char/misc.c23
-rw-r--r--drivers/char/msm_smd_pkt.c465
-rw-r--r--drivers/char/pcmcia/cm4040_cs.c5
-rw-r--r--drivers/char/pcmcia/synclink_cs.c2
-rw-r--r--drivers/char/random.c80
-rw-r--r--drivers/char/raw.c1
-rw-r--r--drivers/char/snsc.c4
-rw-r--r--drivers/char/tpm/tpm_of.c2
-rw-r--r--drivers/char/virtio_console.c4
-rw-r--r--drivers/char/xilinx_hwicap/buffer_icap.c6
-rw-r--r--drivers/char/xillybus/Kconfig2
17 files changed, 132 insertions, 1542 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index a4af82217..a043107da 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -590,14 +590,6 @@ config DEVPORT
source "drivers/s390/char/Kconfig"
-config MSM_SMD_PKT
- bool "Enable device interface for some SMD packet ports"
- default n
- depends on MSM_SMD
- help
- Enables userspace clients to read and write to some packet SMD
- ports via device interface for MSM chipset.
-
config TILE_SROM
bool "Character-device access via hypervisor to the Tilera SPI ROM"
depends on TILE
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index d06cde260..d8a757930 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o
obj-$(CONFIG_RAW_DRIVER) += raw.o
obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o
-obj-$(CONFIG_MSM_SMD_PKT) += msm_smd_pkt.o
obj-$(CONFIG_MSPEC) += mspec.o
obj-$(CONFIG_MMTIMER) += mmtimer.o
obj-$(CONFIG_UV_MMTIMER) += uv_mmtimer.o
@@ -36,7 +35,6 @@ else
obj-$(CONFIG_NVRAM) += nvram.o
endif
obj-$(CONFIG_TOSHIBA) += toshiba.o
-obj-$(CONFIG_I8K) += i8k.o
obj-$(CONFIG_DS1620) += ds1620.o
obj-$(CONFIG_HW_RANDOM) += hw_random/
obj-$(CONFIG_PPDEV) += ppdev.o
diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c
index a3bebef25..0c98a9d51 100644
--- a/drivers/char/hw_random/via-rng.c
+++ b/drivers/char/hw_random/via-rng.c
@@ -33,7 +33,7 @@
#include <asm/io.h>
#include <asm/msr.h>
#include <asm/cpufeature.h>
-#include <asm/i387.h>
+#include <asm/fpu/api.h>
diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c
deleted file mode 100644
index 3c1a123f9..000000000
--- a/drivers/char/i8k.c
+++ /dev/null
@@ -1,1023 +0,0 @@
-/*
- * i8k.c -- Linux driver for accessing the SMM BIOS on Dell laptops.
- *
- * Copyright (C) 2001 Massimo Dal Zotto <dz@debian.org>
- *
- * Hwmon integration:
- * Copyright (C) 2011 Jean Delvare <jdelvare@suse.de>
- * Copyright (C) 2013, 2014 Guenter Roeck <linux@roeck-us.net>
- * Copyright (C) 2014 Pali Rohár <pali.rohar@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/dmi.h>
-#include <linux/capability.h>
-#include <linux/mutex.h>
-#include <linux/hwmon.h>
-#include <linux/hwmon-sysfs.h>
-#include <linux/uaccess.h>
-#include <linux/io.h>
-#include <linux/sched.h>
-
-#include <linux/i8k.h>
-
-#define I8K_SMM_FN_STATUS 0x0025
-#define I8K_SMM_POWER_STATUS 0x0069
-#define I8K_SMM_SET_FAN 0x01a3
-#define I8K_SMM_GET_FAN 0x00a3
-#define I8K_SMM_GET_SPEED 0x02a3
-#define I8K_SMM_GET_FAN_TYPE 0x03a3
-#define I8K_SMM_GET_NOM_SPEED 0x04a3
-#define I8K_SMM_GET_TEMP 0x10a3
-#define I8K_SMM_GET_TEMP_TYPE 0x11a3
-#define I8K_SMM_GET_DELL_SIG1 0xfea3
-#define I8K_SMM_GET_DELL_SIG2 0xffa3
-
-#define I8K_FAN_MULT 30
-#define I8K_FAN_MAX_RPM 30000
-#define I8K_MAX_TEMP 127
-
-#define I8K_FN_NONE 0x00
-#define I8K_FN_UP 0x01
-#define I8K_FN_DOWN 0x02
-#define I8K_FN_MUTE 0x04
-#define I8K_FN_MASK 0x07
-#define I8K_FN_SHIFT 8
-
-#define I8K_POWER_AC 0x05
-#define I8K_POWER_BATTERY 0x01
-
-static DEFINE_MUTEX(i8k_mutex);
-static char bios_version[4];
-static struct device *i8k_hwmon_dev;
-static u32 i8k_hwmon_flags;
-static uint i8k_fan_mult = I8K_FAN_MULT;
-static uint i8k_pwm_mult;
-static uint i8k_fan_max = I8K_FAN_HIGH;
-
-#define I8K_HWMON_HAVE_TEMP1 (1 << 0)
-#define I8K_HWMON_HAVE_TEMP2 (1 << 1)
-#define I8K_HWMON_HAVE_TEMP3 (1 << 2)
-#define I8K_HWMON_HAVE_TEMP4 (1 << 3)
-#define I8K_HWMON_HAVE_FAN1 (1 << 4)
-#define I8K_HWMON_HAVE_FAN2 (1 << 5)
-
-MODULE_AUTHOR("Massimo Dal Zotto (dz@debian.org)");
-MODULE_DESCRIPTION("Driver for accessing SMM BIOS on Dell laptops");
-MODULE_LICENSE("GPL");
-
-static bool force;
-module_param(force, bool, 0);
-MODULE_PARM_DESC(force, "Force loading without checking for supported models");
-
-static bool ignore_dmi;
-module_param(ignore_dmi, bool, 0);
-MODULE_PARM_DESC(ignore_dmi, "Continue probing hardware even if DMI data does not match");
-
-static bool restricted;
-module_param(restricted, bool, 0);
-MODULE_PARM_DESC(restricted, "Allow fan control if SYS_ADMIN capability set");
-
-static bool power_status;
-module_param(power_status, bool, 0600);
-MODULE_PARM_DESC(power_status, "Report power status in /proc/i8k");
-
-static uint fan_mult;
-module_param(fan_mult, uint, 0);
-MODULE_PARM_DESC(fan_mult, "Factor to multiply fan speed with (default: autodetect)");
-
-static uint fan_max;
-module_param(fan_max, uint, 0);
-MODULE_PARM_DESC(fan_max, "Maximum configurable fan speed (default: autodetect)");
-
-static int i8k_open_fs(struct inode *inode, struct file *file);
-static long i8k_ioctl(struct file *, unsigned int, unsigned long);
-
-static const struct file_operations i8k_fops = {
- .owner = THIS_MODULE,
- .open = i8k_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .unlocked_ioctl = i8k_ioctl,
-};
-
-struct smm_regs {
- unsigned int eax;
- unsigned int ebx __packed;
- unsigned int ecx __packed;
- unsigned int edx __packed;
- unsigned int esi __packed;
- unsigned int edi __packed;
-};
-
-static inline const char *i8k_get_dmi_data(int field)
-{
- const char *dmi_data = dmi_get_system_info(field);
-
- return dmi_data && *dmi_data ? dmi_data : "?";
-}
-
-/*
- * Call the System Management Mode BIOS. Code provided by Jonathan Buzzard.
- */
-static int i8k_smm(struct smm_regs *regs)
-{
- int rc;
- int eax = regs->eax;
- cpumask_var_t old_mask;
-
- /* SMM requires CPU 0 */
- if (!alloc_cpumask_var(&old_mask, GFP_KERNEL))
- return -ENOMEM;
- cpumask_copy(old_mask, &current->cpus_allowed);
- rc = set_cpus_allowed_ptr(current, cpumask_of(0));
- if (rc)
- goto out;
- if (smp_processor_id() != 0) {
- rc = -EBUSY;
- goto out;
- }
-
-#if defined(CONFIG_X86_64)
- asm volatile("pushq %%rax\n\t"
- "movl 0(%%rax),%%edx\n\t"
- "pushq %%rdx\n\t"
- "movl 4(%%rax),%%ebx\n\t"
- "movl 8(%%rax),%%ecx\n\t"
- "movl 12(%%rax),%%edx\n\t"
- "movl 16(%%rax),%%esi\n\t"
- "movl 20(%%rax),%%edi\n\t"
- "popq %%rax\n\t"
- "out %%al,$0xb2\n\t"
- "out %%al,$0x84\n\t"
- "xchgq %%rax,(%%rsp)\n\t"
- "movl %%ebx,4(%%rax)\n\t"
- "movl %%ecx,8(%%rax)\n\t"
- "movl %%edx,12(%%rax)\n\t"
- "movl %%esi,16(%%rax)\n\t"
- "movl %%edi,20(%%rax)\n\t"
- "popq %%rdx\n\t"
- "movl %%edx,0(%%rax)\n\t"
- "pushfq\n\t"
- "popq %%rax\n\t"
- "andl $1,%%eax\n"
- : "=a"(rc)
- : "a"(regs)
- : "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
-#else
- asm volatile("pushl %%eax\n\t"
- "movl 0(%%eax),%%edx\n\t"
- "push %%edx\n\t"
- "movl 4(%%eax),%%ebx\n\t"
- "movl 8(%%eax),%%ecx\n\t"
- "movl 12(%%eax),%%edx\n\t"
- "movl 16(%%eax),%%esi\n\t"
- "movl 20(%%eax),%%edi\n\t"
- "popl %%eax\n\t"
- "out %%al,$0xb2\n\t"
- "out %%al,$0x84\n\t"
- "xchgl %%eax,(%%esp)\n\t"
- "movl %%ebx,4(%%eax)\n\t"
- "movl %%ecx,8(%%eax)\n\t"
- "movl %%edx,12(%%eax)\n\t"
- "movl %%esi,16(%%eax)\n\t"
- "movl %%edi,20(%%eax)\n\t"
- "popl %%edx\n\t"
- "movl %%edx,0(%%eax)\n\t"
- "lahf\n\t"
- "shrl $8,%%eax\n\t"
- "andl $1,%%eax\n"
- : "=a"(rc)
- : "a"(regs)
- : "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
-#endif
- if (rc != 0 || (regs->eax & 0xffff) == 0xffff || regs->eax == eax)
- rc = -EINVAL;
-
-out:
- set_cpus_allowed_ptr(current, old_mask);
- free_cpumask_var(old_mask);
- return rc;
-}
-
-/*
- * Read the Fn key status.
- */
-static int i8k_get_fn_status(void)
-{
- struct smm_regs regs = { .eax = I8K_SMM_FN_STATUS, };
- int rc;
-
- rc = i8k_smm(&regs);
- if (rc < 0)
- return rc;
-
- switch ((regs.eax >> I8K_FN_SHIFT) & I8K_FN_MASK) {
- case I8K_FN_UP:
- return I8K_VOL_UP;
- case I8K_FN_DOWN:
- return I8K_VOL_DOWN;
- case I8K_FN_MUTE:
- return I8K_VOL_MUTE;
- default:
- return 0;
- }
-}
-
-/*
- * Read the power status.
- */
-static int i8k_get_power_status(void)
-{
- struct smm_regs regs = { .eax = I8K_SMM_POWER_STATUS, };
- int rc;
-
- rc = i8k_smm(&regs);
- if (rc < 0)
- return rc;
-
- return (regs.eax & 0xff) == I8K_POWER_AC ? I8K_AC : I8K_BATTERY;
-}
-
-/*
- * Read the fan status.
- */
-static int i8k_get_fan_status(int fan)
-{
- struct smm_regs regs = { .eax = I8K_SMM_GET_FAN, };
-
- regs.ebx = fan & 0xff;
- return i8k_smm(&regs) ? : regs.eax & 0xff;
-}
-
-/*
- * Read the fan speed in RPM.
- */
-static int i8k_get_fan_speed(int fan)
-{
- struct smm_regs regs = { .eax = I8K_SMM_GET_SPEED, };
-
- regs.ebx = fan & 0xff;
- return i8k_smm(&regs) ? : (regs.eax & 0xffff) * i8k_fan_mult;
-}
-
-/*
- * Read the fan type.
- */
-static int i8k_get_fan_type(int fan)
-{
- struct smm_regs regs = { .eax = I8K_SMM_GET_FAN_TYPE, };
-
- regs.ebx = fan & 0xff;
- return i8k_smm(&regs) ? : regs.eax & 0xff;
-}
-
-/*
- * Read the fan nominal rpm for specific fan speed.
- */
-static int i8k_get_fan_nominal_speed(int fan, int speed)
-{
- struct smm_regs regs = { .eax = I8K_SMM_GET_NOM_SPEED, };
-
- regs.ebx = (fan & 0xff) | (speed << 8);
- return i8k_smm(&regs) ? : (regs.eax & 0xffff) * i8k_fan_mult;
-}
-
-/*
- * Set the fan speed (off, low, high). Returns the new fan status.
- */
-static int i8k_set_fan(int fan, int speed)
-{
- struct smm_regs regs = { .eax = I8K_SMM_SET_FAN, };
-
- speed = (speed < 0) ? 0 : ((speed > i8k_fan_max) ? i8k_fan_max : speed);
- regs.ebx = (fan & 0xff) | (speed << 8);
-
- return i8k_smm(&regs) ? : i8k_get_fan_status(fan);
-}
-
-static int i8k_get_temp_type(int sensor)
-{
- struct smm_regs regs = { .eax = I8K_SMM_GET_TEMP_TYPE, };
-
- regs.ebx = sensor & 0xff;
- return i8k_smm(&regs) ? : regs.eax & 0xff;
-}
-
-/*
- * Read the cpu temperature.
- */
-static int _i8k_get_temp(int sensor)
-{
- struct smm_regs regs = {
- .eax = I8K_SMM_GET_TEMP,
- .ebx = sensor & 0xff,
- };
-
- return i8k_smm(&regs) ? : regs.eax & 0xff;
-}
-
-static int i8k_get_temp(int sensor)
-{
- int temp = _i8k_get_temp(sensor);
-
- /*
- * Sometimes the temperature sensor returns 0x99, which is out of range.
- * In this case we retry (once) before returning an error.
- # 1003655137 00000058 00005a4b
- # 1003655138 00000099 00003a80 <--- 0x99 = 153 degrees
- # 1003655139 00000054 00005c52
- */
- if (temp == 0x99) {
- msleep(100);
- temp = _i8k_get_temp(sensor);
- }
- /*
- * Return -ENODATA for all invalid temperatures.
- *
- * Known instances are the 0x99 value as seen above as well as
- * 0xc1 (193), which may be returned when trying to read the GPU
- * temperature if the system supports a GPU and it is currently
- * turned off.
- */
- if (temp > I8K_MAX_TEMP)
- return -ENODATA;
-
- return temp;
-}
-
-static int i8k_get_dell_signature(int req_fn)
-{
- struct smm_regs regs = { .eax = req_fn, };
- int rc;
-
- rc = i8k_smm(&regs);
- if (rc < 0)
- return rc;
-
- return regs.eax == 1145651527 && regs.edx == 1145392204 ? 0 : -1;
-}
-
-static int
-i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
-{
- int val = 0;
- int speed;
- unsigned char buff[16];
- int __user *argp = (int __user *)arg;
-
- if (!argp)
- return -EINVAL;
-
- switch (cmd) {
- case I8K_BIOS_VERSION:
- val = (bios_version[0] << 16) |
- (bios_version[1] << 8) | bios_version[2];
- break;
-
- case I8K_MACHINE_ID:
- memset(buff, 0, 16);
- strlcpy(buff, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
- sizeof(buff));
- break;
-
- case I8K_FN_STATUS:
- val = i8k_get_fn_status();
- break;
-
- case I8K_POWER_STATUS:
- val = i8k_get_power_status();
- break;
-
- case I8K_GET_TEMP:
- val = i8k_get_temp(0);
- break;
-
- case I8K_GET_SPEED:
- if (copy_from_user(&val, argp, sizeof(int)))
- return -EFAULT;
-
- val = i8k_get_fan_speed(val);
- break;
-
- case I8K_GET_FAN:
- if (copy_from_user(&val, argp, sizeof(int)))
- return -EFAULT;
-
- val = i8k_get_fan_status(val);
- break;
-
- case I8K_SET_FAN:
- if (restricted && !capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (copy_from_user(&val, argp, sizeof(int)))
- return -EFAULT;
-
- if (copy_from_user(&speed, argp + 1, sizeof(int)))
- return -EFAULT;
-
- val = i8k_set_fan(val, speed);
- break;
-
- default:
- return -EINVAL;
- }
-
- if (val < 0)
- return val;
-
- switch (cmd) {
- case I8K_BIOS_VERSION:
- if (copy_to_user(argp, &val, 4))
- return -EFAULT;
-
- break;
- case I8K_MACHINE_ID:
- if (copy_to_user(argp, buff, 16))
- return -EFAULT;
-
- break;
- default:
- if (copy_to_user(argp, &val, sizeof(int)))
- return -EFAULT;
-
- break;
- }
-
- return 0;
-}
-
-static long i8k_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
-{
- long ret;
-
- mutex_lock(&i8k_mutex);
- ret = i8k_ioctl_unlocked(fp, cmd, arg);
- mutex_unlock(&i8k_mutex);
-
- return ret;
-}
-
-/*
- * Print the information for /proc/i8k.
- */
-static int i8k_proc_show(struct seq_file *seq, void *offset)
-{
- int fn_key, cpu_temp, ac_power;
- int left_fan, right_fan, left_speed, right_speed;
-
- cpu_temp = i8k_get_temp(0); /* 11100 µs */
- left_fan = i8k_get_fan_status(I8K_FAN_LEFT); /* 580 µs */
- right_fan = i8k_get_fan_status(I8K_FAN_RIGHT); /* 580 µs */
- left_speed = i8k_get_fan_speed(I8K_FAN_LEFT); /* 580 µs */
- right_speed = i8k_get_fan_speed(I8K_FAN_RIGHT); /* 580 µs */
- fn_key = i8k_get_fn_status(); /* 750 µs */
- if (power_status)
- ac_power = i8k_get_power_status(); /* 14700 µs */
- else
- ac_power = -1;
-
- /*
- * Info:
- *
- * 1) Format version (this will change if format changes)
- * 2) BIOS version
- * 3) BIOS machine ID
- * 4) Cpu temperature
- * 5) Left fan status
- * 6) Right fan status
- * 7) Left fan speed
- * 8) Right fan speed
- * 9) AC power
- * 10) Fn Key status
- */
- seq_printf(seq, "%s %s %s %d %d %d %d %d %d %d\n",
- I8K_PROC_FMT,
- bios_version,
- i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
- cpu_temp,
- left_fan, right_fan, left_speed, right_speed,
- ac_power, fn_key);
-
- return 0;
-}
-
-static int i8k_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, i8k_proc_show, NULL);
-}
-
-
-/*
- * Hwmon interface
- */
-
-static ssize_t i8k_hwmon_show_temp_label(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- static const char * const labels[] = {
- "CPU",
- "GPU",
- "SODIMM",
- "Other",
- "Ambient",
- "Other",
- };
- int index = to_sensor_dev_attr(devattr)->index;
- int type;
-
- type = i8k_get_temp_type(index);
- if (type < 0)
- return type;
- if (type >= ARRAY_SIZE(labels))
- type = ARRAY_SIZE(labels) - 1;
- return sprintf(buf, "%s\n", labels[type]);
-}
-
-static ssize_t i8k_hwmon_show_temp(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- int index = to_sensor_dev_attr(devattr)->index;
- int temp;
-
- temp = i8k_get_temp(index);
- if (temp < 0)
- return temp;
- return sprintf(buf, "%d\n", temp * 1000);
-}
-
-static ssize_t i8k_hwmon_show_fan_label(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- static const char * const labels[] = {
- "Processor Fan",
- "Motherboard Fan",
- "Video Fan",
- "Power Supply Fan",
- "Chipset Fan",
- "Other Fan",
- };
- int index = to_sensor_dev_attr(devattr)->index;
- bool dock = false;
- int type;
-
- type = i8k_get_fan_type(index);
- if (type < 0)
- return type;
-
- if (type & 0x10) {
- dock = true;
- type &= 0x0F;
- }
-
- if (type >= ARRAY_SIZE(labels))
- type = (ARRAY_SIZE(labels) - 1);
-
- return sprintf(buf, "%s%s\n", (dock ? "Docking " : ""), labels[type]);
-}
-
-static ssize_t i8k_hwmon_show_fan(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- int index = to_sensor_dev_attr(devattr)->index;
- int fan_speed;
-
- fan_speed = i8k_get_fan_speed(index);
- if (fan_speed < 0)
- return fan_speed;
- return sprintf(buf, "%d\n", fan_speed);
-}
-
-static ssize_t i8k_hwmon_show_pwm(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- int index = to_sensor_dev_attr(devattr)->index;
- int status;
-
- status = i8k_get_fan_status(index);
- if (status < 0)
- return -EIO;
- return sprintf(buf, "%d\n", clamp_val(status * i8k_pwm_mult, 0, 255));
-}
-
-static ssize_t i8k_hwmon_set_pwm(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int index = to_sensor_dev_attr(attr)->index;
- unsigned long val;
- int err;
-
- err = kstrtoul(buf, 10, &val);
- if (err)
- return err;
- val = clamp_val(DIV_ROUND_CLOSEST(val, i8k_pwm_mult), 0, i8k_fan_max);
-
- mutex_lock(&i8k_mutex);
- err = i8k_set_fan(index, val);
- mutex_unlock(&i8k_mutex);
-
- return err < 0 ? -EIO : count;
-}
-
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 0);
-static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
- 0);
-static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
- 1);
-static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 2);
-static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
- 2);
-static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, i8k_hwmon_show_temp, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, i8k_hwmon_show_temp_label, NULL,
- 3);
-static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, i8k_hwmon_show_fan, NULL, 0);
-static SENSOR_DEVICE_ATTR(fan1_label, S_IRUGO, i8k_hwmon_show_fan_label, NULL,
- 0);
-static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, i8k_hwmon_show_pwm,
- i8k_hwmon_set_pwm, 0);
-static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, i8k_hwmon_show_fan, NULL,
- 1);
-static SENSOR_DEVICE_ATTR(fan2_label, S_IRUGO, i8k_hwmon_show_fan_label, NULL,
- 1);
-static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, i8k_hwmon_show_pwm,
- i8k_hwmon_set_pwm, 1);
-
-static struct attribute *i8k_attrs[] = {
- &sensor_dev_attr_temp1_input.dev_attr.attr, /* 0 */
- &sensor_dev_attr_temp1_label.dev_attr.attr, /* 1 */
- &sensor_dev_attr_temp2_input.dev_attr.attr, /* 2 */
- &sensor_dev_attr_temp2_label.dev_attr.attr, /* 3 */
- &sensor_dev_attr_temp3_input.dev_attr.attr, /* 4 */
- &sensor_dev_attr_temp3_label.dev_attr.attr, /* 5 */
- &sensor_dev_attr_temp4_input.dev_attr.attr, /* 6 */
- &sensor_dev_attr_temp4_label.dev_attr.attr, /* 7 */
- &sensor_dev_attr_fan1_input.dev_attr.attr, /* 8 */
- &sensor_dev_attr_fan1_label.dev_attr.attr, /* 9 */
- &sensor_dev_attr_pwm1.dev_attr.attr, /* 10 */
- &sensor_dev_attr_fan2_input.dev_attr.attr, /* 11 */
- &sensor_dev_attr_fan2_label.dev_attr.attr, /* 12 */
- &sensor_dev_attr_pwm2.dev_attr.attr, /* 13 */
- NULL
-};
-
-static umode_t i8k_is_visible(struct kobject *kobj, struct attribute *attr,
- int index)
-{
- if (index >= 0 && index <= 1 &&
- !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP1))
- return 0;
- if (index >= 2 && index <= 3 &&
- !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP2))
- return 0;
- if (index >= 4 && index <= 5 &&
- !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP3))
- return 0;
- if (index >= 6 && index <= 7 &&
- !(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP4))
- return 0;
- if (index >= 8 && index <= 10 &&
- !(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN1))
- return 0;
- if (index >= 11 && index <= 13 &&
- !(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN2))
- return 0;
-
- return attr->mode;
-}
-
-static const struct attribute_group i8k_group = {
- .attrs = i8k_attrs,
- .is_visible = i8k_is_visible,
-};
-__ATTRIBUTE_GROUPS(i8k);
-
-static int __init i8k_init_hwmon(void)
-{
- int err;
-
- i8k_hwmon_flags = 0;
-
- /* CPU temperature attributes, if temperature type is OK */
- err = i8k_get_temp_type(0);
- if (err >= 0)
- i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP1;
- /* check for additional temperature sensors */
- err = i8k_get_temp_type(1);
- if (err >= 0)
- i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP2;
- err = i8k_get_temp_type(2);
- if (err >= 0)
- i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP3;
- err = i8k_get_temp_type(3);
- if (err >= 0)
- i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP4;
-
- /* First fan attributes, if fan type is OK */
- err = i8k_get_fan_type(0);
- if (err >= 0)
- i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN1;
-
- /* Second fan attributes, if fan type is OK */
- err = i8k_get_fan_type(1);
- if (err >= 0)
- i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN2;
-
- i8k_hwmon_dev = hwmon_device_register_with_groups(NULL, "i8k", NULL,
- i8k_groups);
- if (IS_ERR(i8k_hwmon_dev)) {
- err = PTR_ERR(i8k_hwmon_dev);
- i8k_hwmon_dev = NULL;
- pr_err("hwmon registration failed (%d)\n", err);
- return err;
- }
- return 0;
-}
-
-struct i8k_config_data {
- uint fan_mult;
- uint fan_max;
-};
-
-enum i8k_configs {
- DELL_LATITUDE_D520,
- DELL_PRECISION_490,
- DELL_STUDIO,
- DELL_XPS,
-};
-
-static const struct i8k_config_data i8k_config_data[] = {
- [DELL_LATITUDE_D520] = {
- .fan_mult = 1,
- .fan_max = I8K_FAN_TURBO,
- },
- [DELL_PRECISION_490] = {
- .fan_mult = 1,
- .fan_max = I8K_FAN_TURBO,
- },
- [DELL_STUDIO] = {
- .fan_mult = 1,
- .fan_max = I8K_FAN_HIGH,
- },
- [DELL_XPS] = {
- .fan_mult = 1,
- .fan_max = I8K_FAN_HIGH,
- },
-};
-
-static struct dmi_system_id i8k_dmi_table[] __initdata = {
- {
- .ident = "Dell Inspiron",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron"),
- },
- },
- {
- .ident = "Dell Latitude",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
- },
- },
- {
- .ident = "Dell Inspiron 2",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron"),
- },
- },
- {
- .ident = "Dell Latitude D520",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D520"),
- },
- .driver_data = (void *)&i8k_config_data[DELL_LATITUDE_D520],
- },
- {
- .ident = "Dell Latitude 2",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
- },
- },
- { /* UK Inspiron 6400 */
- .ident = "Dell Inspiron 3",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "MM061"),
- },
- },
- {
- .ident = "Dell Inspiron 3",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "MP061"),
- },
- },
- {
- .ident = "Dell Precision 490",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME,
- "Precision WorkStation 490"),
- },
- .driver_data = (void *)&i8k_config_data[DELL_PRECISION_490],
- },
- {
- .ident = "Dell Precision",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Precision"),
- },
- },
- {
- .ident = "Dell Vostro",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Vostro"),
- },
- },
- {
- .ident = "Dell XPS421",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "XPS L421X"),
- },
- },
- {
- .ident = "Dell Studio",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Studio"),
- },
- .driver_data = (void *)&i8k_config_data[DELL_STUDIO],
- },
- {
- .ident = "Dell XPS 13",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "XPS13"),
- },
- .driver_data = (void *)&i8k_config_data[DELL_XPS],
- },
- {
- .ident = "Dell XPS M140",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "MXC051"),
- },
- .driver_data = (void *)&i8k_config_data[DELL_XPS],
- },
- { }
-};
-
-MODULE_DEVICE_TABLE(dmi, i8k_dmi_table);
-
-static struct dmi_system_id i8k_blacklist_dmi_table[] __initdata = {
- {
- /*
- * CPU fan speed going up and down on Dell Studio XPS 8100
- * for unknown reasons.
- */
- .ident = "Dell Studio XPS 8100",
- .matches = {
- DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Studio XPS 8100"),
- },
- },
- { }
-};
-
-/*
- * Probe for the presence of a supported laptop.
- */
-static int __init i8k_probe(void)
-{
- const struct dmi_system_id *id;
- int fan, ret;
-
- /*
- * Get DMI information
- */
- if (!dmi_check_system(i8k_dmi_table) ||
- dmi_check_system(i8k_blacklist_dmi_table)) {
- if (!ignore_dmi && !force)
- return -ENODEV;
-
- pr_info("not running on a supported Dell system.\n");
- pr_info("vendor=%s, model=%s, version=%s\n",
- i8k_get_dmi_data(DMI_SYS_VENDOR),
- i8k_get_dmi_data(DMI_PRODUCT_NAME),
- i8k_get_dmi_data(DMI_BIOS_VERSION));
- }
-
- strlcpy(bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
- sizeof(bios_version));
-
- /*
- * Get SMM Dell signature
- */
- if (i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG1) &&
- i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG2)) {
- pr_err("unable to get SMM Dell signature\n");
- if (!force)
- return -ENODEV;
- }
-
- /*
- * Set fan multiplier and maximal fan speed from dmi config
- * Values specified in module parameters override values from dmi
- */
- id = dmi_first_match(i8k_dmi_table);
- if (id && id->driver_data) {
- const struct i8k_config_data *conf = id->driver_data;
- if (!fan_mult && conf->fan_mult)
- fan_mult = conf->fan_mult;
- if (!fan_max && conf->fan_max)
- fan_max = conf->fan_max;
- }
-
- i8k_fan_max = fan_max ? : I8K_FAN_HIGH; /* Must not be 0 */
- i8k_pwm_mult = DIV_ROUND_UP(255, i8k_fan_max);
-
- if (!fan_mult) {
- /*
- * Autodetect fan multiplier based on nominal rpm
- * If fan reports rpm value too high then set multiplier to 1
- */
- for (fan = 0; fan < 2; ++fan) {
- ret = i8k_get_fan_nominal_speed(fan, i8k_fan_max);
- if (ret < 0)
- continue;
- if (ret > I8K_FAN_MAX_RPM)
- i8k_fan_mult = 1;
- break;
- }
- } else {
- /* Fan multiplier was specified in module param or in dmi */
- i8k_fan_mult = fan_mult;
- }
-
- return 0;
-}
-
-static int __init i8k_init(void)
-{
- struct proc_dir_entry *proc_i8k;
- int err;
-
- /* Are we running on an supported laptop? */
- if (i8k_probe())
- return -ENODEV;
-
- /* Register the proc entry */
- proc_i8k = proc_create("i8k", 0, NULL, &i8k_fops);
- if (!proc_i8k)
- return -ENOENT;
-
- err = i8k_init_hwmon();
- if (err)
- goto exit_remove_proc;
-
- return 0;
-
- exit_remove_proc:
- remove_proc_entry("i8k", NULL);
- return err;
-}
-
-static void __exit i8k_exit(void)
-{
- hwmon_device_unregister(i8k_hwmon_dev);
- remove_proc_entry("i8k", NULL);
-}
-
-module_init(i8k_init);
-module_exit(i8k_exit);
diff --git a/drivers/char/ipmi/ipmi_powernv.c b/drivers/char/ipmi/ipmi_powernv.c
index 8753b0f6a..9b409c0f1 100644
--- a/drivers/char/ipmi/ipmi_powernv.c
+++ b/drivers/char/ipmi/ipmi_powernv.c
@@ -15,6 +15,8 @@
#include <linux/list.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/interrupt.h>
#include <asm/opal.h>
@@ -23,8 +25,7 @@ struct ipmi_smi_powernv {
u64 interface_id;
struct ipmi_device_id ipmi_id;
ipmi_smi_t intf;
- u64 event;
- struct notifier_block event_nb;
+ unsigned int irq;
/**
* We assume that there can only be one outstanding request, so
@@ -197,15 +198,12 @@ static struct ipmi_smi_handlers ipmi_powernv_smi_handlers = {
.poll = ipmi_powernv_poll,
};
-static int ipmi_opal_event(struct notifier_block *nb,
- unsigned long events, void *change)
+static irqreturn_t ipmi_opal_event(int irq, void *data)
{
- struct ipmi_smi_powernv *smi = container_of(nb,
- struct ipmi_smi_powernv, event_nb);
+ struct ipmi_smi_powernv *smi = data;
- if (events & smi->event)
- ipmi_powernv_recv(smi);
- return 0;
+ ipmi_powernv_recv(smi);
+ return IRQ_HANDLED;
}
static int ipmi_powernv_probe(struct platform_device *pdev)
@@ -240,13 +238,16 @@ static int ipmi_powernv_probe(struct platform_device *pdev)
goto err_free;
}
- ipmi->event = 1ull << prop;
- ipmi->event_nb.notifier_call = ipmi_opal_event;
+ ipmi->irq = irq_of_parse_and_map(dev->of_node, 0);
+ if (!ipmi->irq) {
+ dev_info(dev, "Unable to map irq from device tree\n");
+ ipmi->irq = opal_event_request(prop);
+ }
- rc = opal_notifier_register(&ipmi->event_nb);
- if (rc) {
- dev_warn(dev, "OPAL notifier registration failed (%d)\n", rc);
- goto err_free;
+ if (request_irq(ipmi->irq, ipmi_opal_event, IRQ_TYPE_LEVEL_HIGH,
+ "opal-ipmi", ipmi)) {
+ dev_warn(dev, "Unable to request irq\n");
+ goto err_dispose;
}
ipmi->opal_msg = devm_kmalloc(dev,
@@ -271,7 +272,9 @@ static int ipmi_powernv_probe(struct platform_device *pdev)
err_free_msg:
devm_kfree(dev, ipmi->opal_msg);
err_unregister:
- opal_notifier_unregister(&ipmi->event_nb);
+ free_irq(ipmi->irq, ipmi);
+err_dispose:
+ irq_dispose_mapping(ipmi->irq);
err_free:
devm_kfree(dev, ipmi);
return rc;
@@ -282,7 +285,9 @@ static int ipmi_powernv_remove(struct platform_device *pdev)
struct ipmi_smi_powernv *smi = dev_get_drvdata(&pdev->dev);
ipmi_unregister_smi(smi->intf);
- opal_notifier_unregister(&smi->event_nb);
+ free_irq(smi->irq, smi);
+ irq_dispose_mapping(smi->irq);
+
return 0;
}
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 37b8be7cb..0ac3bd1a5 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -208,7 +208,7 @@ static int set_param_timeout(const char *val, const struct kernel_param *kp)
return rv;
}
-static struct kernel_param_ops param_ops_timeout = {
+static const struct kernel_param_ops param_ops_timeout = {
.set = set_param_timeout,
.get = param_get_int,
};
@@ -270,14 +270,14 @@ static int set_param_wdog_ifnum(const char *val, const struct kernel_param *kp)
return 0;
}
-static struct kernel_param_ops param_ops_wdog_ifnum = {
+static const struct kernel_param_ops param_ops_wdog_ifnum = {
.set = set_param_wdog_ifnum,
.get = param_get_int,
};
#define param_check_wdog_ifnum param_check_int
-static struct kernel_param_ops param_ops_str = {
+static const struct kernel_param_ops param_ops_str = {
.set = set_param_str,
.get = get_param_str,
};
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 9fd5a91e0..fdb0f9b3f 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -117,14 +117,14 @@ static int misc_open(struct inode * inode, struct file * file)
const struct file_operations *new_fops = NULL;
mutex_lock(&misc_mtx);
-
+
list_for_each_entry(c, &misc_list, list) {
if (c->minor == minor) {
- new_fops = fops_get(c->fops);
+ new_fops = fops_get(c->fops);
break;
}
}
-
+
if (!new_fops) {
mutex_unlock(&misc_mtx);
request_module("char-major-%d-%d", MISC_MAJOR, minor);
@@ -167,7 +167,7 @@ static const struct file_operations misc_fops = {
/**
* misc_register - register a miscellaneous device
* @misc: device structure
- *
+ *
* Register a miscellaneous device with the kernel. If the minor
* number is set to %MISC_DYNAMIC_MINOR a minor number is assigned
* and placed in the minor field of the structure. For other cases
@@ -181,17 +181,18 @@ static const struct file_operations misc_fops = {
* A zero is returned on success and a negative errno code for
* failure.
*/
-
+
int misc_register(struct miscdevice * misc)
{
dev_t dev;
int err = 0;
+ bool is_dynamic = (misc->minor == MISC_DYNAMIC_MINOR);
INIT_LIST_HEAD(&misc->list);
mutex_lock(&misc_mtx);
- if (misc->minor == MISC_DYNAMIC_MINOR) {
+ if (is_dynamic) {
int i = find_first_zero_bit(misc_minors, DYNAMIC_MINORS);
if (i >= DYNAMIC_MINORS) {
err = -EBUSY;
@@ -216,9 +217,13 @@ int misc_register(struct miscdevice * misc)
device_create_with_groups(misc_class, misc->parent, dev,
misc, misc->groups, "%s", misc->name);
if (IS_ERR(misc->this_device)) {
- int i = DYNAMIC_MINORS - misc->minor - 1;
- if (i < DYNAMIC_MINORS && i >= 0)
- clear_bit(i, misc_minors);
+ if (is_dynamic) {
+ int i = DYNAMIC_MINORS - misc->minor - 1;
+
+ if (i < DYNAMIC_MINORS && i >= 0)
+ clear_bit(i, misc_minors);
+ misc->minor = MISC_DYNAMIC_MINOR;
+ }
err = PTR_ERR(misc->this_device);
goto out;
}
diff --git a/drivers/char/msm_smd_pkt.c b/drivers/char/msm_smd_pkt.c
deleted file mode 100644
index ba82a06d9..000000000
--- a/drivers/char/msm_smd_pkt.c
+++ /dev/null
@@ -1,465 +0,0 @@
-/* Copyright (c) 2008-2010, Code Aurora Forum. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- */
-/*
- * SMD Packet Driver -- Provides userspace interface to SMD packet ports.
- */
-
-#include <linux/slab.h>
-#include <linux/cdev.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/device.h>
-#include <linux/sched.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/uaccess.h>
-#include <linux/workqueue.h>
-#include <linux/poll.h>
-
-#include <mach/msm_smd.h>
-
-#define NUM_SMD_PKT_PORTS 9
-#define DEVICE_NAME "smdpkt"
-#define MAX_BUF_SIZE 2048
-
-struct smd_pkt_dev {
- struct cdev cdev;
- struct device *devicep;
-
- struct smd_channel *ch;
- int open_count;
- struct mutex ch_lock;
- struct mutex rx_lock;
- struct mutex tx_lock;
- wait_queue_head_t ch_read_wait_queue;
- wait_queue_head_t ch_opened_wait_queue;
-
- int i;
-
- unsigned char tx_buf[MAX_BUF_SIZE];
- unsigned char rx_buf[MAX_BUF_SIZE];
- int remote_open;
-
-} *smd_pkt_devp[NUM_SMD_PKT_PORTS];
-
-struct class *smd_pkt_classp;
-static dev_t smd_pkt_number;
-
-static int msm_smd_pkt_debug_enable;
-module_param_named(debug_enable, msm_smd_pkt_debug_enable,
- int, S_IRUGO | S_IWUSR | S_IWGRP);
-
-#ifdef DEBUG
-#define D_DUMP_BUFFER(prestr, cnt, buf) do { \
- int i; \
- if (msm_smd_pkt_debug_enable) { \
- pr_debug("%s", prestr); \
- for (i = 0; i < cnt; i++) \
- pr_debug("%.2x", buf[i]); \
- pr_debug("\n"); \
- } \
- } while (0)
-#else
-#define D_DUMP_BUFFER(prestr, cnt, buf) do {} while (0)
-#endif
-
-#ifdef DEBUG
-#define DBG(x...) do { \
- if (msm_smd_pkt_debug_enable) \
- pr_debug(x); \
- } while (0)
-#else
-#define DBG(x...) do {} while (0)
-#endif
-
-static void check_and_wakeup_reader(struct smd_pkt_dev *smd_pkt_devp)
-{
- int sz;
-
- if (!smd_pkt_devp || !smd_pkt_devp->ch)
- return;
-
- sz = smd_cur_packet_size(smd_pkt_devp->ch);
- if (sz == 0) {
- DBG("no packet\n");
- return;
- }
- if (sz > smd_read_avail(smd_pkt_devp->ch)) {
- DBG("incomplete packet\n");
- return;
- }
-
- DBG("waking up reader\n");
- wake_up_interruptible(&smd_pkt_devp->ch_read_wait_queue);
-}
-
-static int smd_pkt_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- int r, bytes_read;
- struct smd_pkt_dev *smd_pkt_devp;
- struct smd_channel *chl;
-
- DBG("read %d bytes\n", count);
- if (count > MAX_BUF_SIZE)
- return -EINVAL;
-
- smd_pkt_devp = file->private_data;
- if (!smd_pkt_devp || !smd_pkt_devp->ch)
- return -EINVAL;
-
- chl = smd_pkt_devp->ch;
-wait_for_packet:
- r = wait_event_interruptible(smd_pkt_devp->ch_read_wait_queue,
- (smd_cur_packet_size(chl) > 0 &&
- smd_read_avail(chl) >=
- smd_cur_packet_size(chl)));
-
- if (r < 0) {
- if (r != -ERESTARTSYS)
- pr_err("wait returned %d\n", r);
- return r;
- }
-
- mutex_lock(&smd_pkt_devp->rx_lock);
-
- bytes_read = smd_cur_packet_size(smd_pkt_devp->ch);
- if (bytes_read == 0 ||
- bytes_read < smd_read_avail(smd_pkt_devp->ch)) {
- mutex_unlock(&smd_pkt_devp->rx_lock);
- DBG("Nothing to read\n");
- goto wait_for_packet;
- }
-
- if (bytes_read > count) {
- mutex_unlock(&smd_pkt_devp->rx_lock);
- pr_info("packet size %d > buffer size %d", bytes_read, count);
- return -EINVAL;
- }
-
- r = smd_read(smd_pkt_devp->ch, smd_pkt_devp->rx_buf, bytes_read);
- if (r != bytes_read) {
- mutex_unlock(&smd_pkt_devp->rx_lock);
- pr_err("smd_read failed to read %d bytes: %d\n", bytes_read, r);
- return -EIO;
- }
-
- D_DUMP_BUFFER("read: ", bytes_read, smd_pkt_devp->rx_buf);
- r = copy_to_user(buf, smd_pkt_devp->rx_buf, bytes_read);
- mutex_unlock(&smd_pkt_devp->rx_lock);
- if (r) {
- pr_err("copy_to_user failed %d\n", r);
- return -EFAULT;
- }
-
- DBG("read complete %d bytes\n", bytes_read);
- check_and_wakeup_reader(smd_pkt_devp);
-
- return bytes_read;
-}
-
-static int smd_pkt_write(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- int r;
- struct smd_pkt_dev *smd_pkt_devp;
-
- if (count > MAX_BUF_SIZE)
- return -EINVAL;
-
- DBG("writing %d bytes\n", count);
-
- smd_pkt_devp = file->private_data;
- if (!smd_pkt_devp || !smd_pkt_devp->ch)
- return -EINVAL;
-
- mutex_lock(&smd_pkt_devp->tx_lock);
- if (smd_write_avail(smd_pkt_devp->ch) < count) {
- mutex_unlock(&smd_pkt_devp->tx_lock);
- DBG("Not enough space to write\n");
- return -ENOMEM;
- }
-
- D_DUMP_BUFFER("write: ", count, buf);
- r = copy_from_user(smd_pkt_devp->tx_buf, buf, count);
- if (r) {
- mutex_unlock(&smd_pkt_devp->tx_lock);
- pr_err("copy_from_user failed %d\n", r);
- return -EFAULT;
- }
-
- r = smd_write(smd_pkt_devp->ch, smd_pkt_devp->tx_buf, count);
- if (r != count) {
- mutex_unlock(&smd_pkt_devp->tx_lock);
- pr_err("smd_write failed to write %d bytes: %d.\n", count, r);
- return -EIO;
- }
- mutex_unlock(&smd_pkt_devp->tx_lock);
-
- DBG("wrote %d bytes\n", count);
- return count;
-}
-
-static unsigned int smd_pkt_poll(struct file *file, poll_table *wait)
-{
- struct smd_pkt_dev *smd_pkt_devp;
- unsigned int mask = 0;
-
- smd_pkt_devp = file->private_data;
- if (!smd_pkt_devp)
- return POLLERR;
-
- DBG("poll waiting\n");
- poll_wait(file, &smd_pkt_devp->ch_read_wait_queue, wait);
- if (smd_read_avail(smd_pkt_devp->ch))
- mask |= POLLIN | POLLRDNORM;
-
- DBG("poll return\n");
- return mask;
-}
-
-static void smd_pkt_ch_notify(void *priv, unsigned event)
-{
- struct smd_pkt_dev *smd_pkt_devp = priv;
-
- if (smd_pkt_devp->ch == 0)
- return;
-
- switch (event) {
- case SMD_EVENT_DATA:
- DBG("data\n");
- check_and_wakeup_reader(smd_pkt_devp);
- break;
-
- case SMD_EVENT_OPEN:
- DBG("remote open\n");
- smd_pkt_devp->remote_open = 1;
- wake_up_interruptible(&smd_pkt_devp->ch_opened_wait_queue);
- break;
-
- case SMD_EVENT_CLOSE:
- smd_pkt_devp->remote_open = 0;
- pr_info("remote closed\n");
- break;
-
- default:
- pr_err("unknown event %d\n", event);
- break;
- }
-}
-
-static char *smd_pkt_dev_name[] = {
- "smdcntl0",
- "smdcntl1",
- "smdcntl2",
- "smdcntl3",
- "smdcntl4",
- "smdcntl5",
- "smdcntl6",
- "smdcntl7",
- "smd22",
-};
-
-static char *smd_ch_name[] = {
- "DATA5_CNTL",
- "DATA6_CNTL",
- "DATA7_CNTL",
- "DATA8_CNTL",
- "DATA9_CNTL",
- "DATA12_CNTL",
- "DATA13_CNTL",
- "DATA14_CNTL",
- "DATA22",
-};
-
-static int smd_pkt_open(struct inode *inode, struct file *file)
-{
- int r = 0;
- struct smd_pkt_dev *smd_pkt_devp;
-
- smd_pkt_devp = container_of(inode->i_cdev, struct smd_pkt_dev, cdev);
- if (!smd_pkt_devp)
- return -EINVAL;
-
- file->private_data = smd_pkt_devp;
-
- mutex_lock(&smd_pkt_devp->ch_lock);
- if (smd_pkt_devp->open_count == 0) {
- r = smd_open(smd_ch_name[smd_pkt_devp->i],
- &smd_pkt_devp->ch, smd_pkt_devp,
- smd_pkt_ch_notify);
- if (r < 0) {
- pr_err("smd_open failed for %s, %d\n",
- smd_ch_name[smd_pkt_devp->i], r);
- goto out;
- }
-
- r = wait_event_interruptible_timeout(
- smd_pkt_devp->ch_opened_wait_queue,
- smd_pkt_devp->remote_open,
- msecs_to_jiffies(2 * HZ));
- if (r == 0)
- r = -ETIMEDOUT;
-
- if (r < 0) {
- pr_err("wait returned %d\n", r);
- smd_close(smd_pkt_devp->ch);
- smd_pkt_devp->ch = 0;
- } else {
- smd_pkt_devp->open_count++;
- r = 0;
- }
- }
-out:
- mutex_unlock(&smd_pkt_devp->ch_lock);
- return r;
-}
-
-static int smd_pkt_release(struct inode *inode, struct file *file)
-{
- int r = 0;
- struct smd_pkt_dev *smd_pkt_devp = file->private_data;
-
- if (!smd_pkt_devp)
- return -EINVAL;
-
- mutex_lock(&smd_pkt_devp->ch_lock);
- if (--smd_pkt_devp->open_count == 0) {
- r = smd_close(smd_pkt_devp->ch);
- smd_pkt_devp->ch = 0;
- }
- mutex_unlock(&smd_pkt_devp->ch_lock);
-
- return r;
-}
-
-static const struct file_operations smd_pkt_fops = {
- .owner = THIS_MODULE,
- .open = smd_pkt_open,
- .release = smd_pkt_release,
- .read = smd_pkt_read,
- .write = smd_pkt_write,
- .poll = smd_pkt_poll,
-};
-
-static int __init smd_pkt_init(void)
-{
- int i;
- int r;
-
- r = alloc_chrdev_region(&smd_pkt_number, 0,
- NUM_SMD_PKT_PORTS, DEVICE_NAME);
- if (r) {
- pr_err("alloc_chrdev_region() failed %d\n", r);
- return r;
- }
-
- smd_pkt_classp = class_create(THIS_MODULE, DEVICE_NAME);
- if (IS_ERR(smd_pkt_classp)) {
- r = PTR_ERR(smd_pkt_classp);
- pr_err("class_create() failed %d\n", r);
- goto unreg_chardev;
- }
-
- for (i = 0; i < NUM_SMD_PKT_PORTS; ++i) {
- smd_pkt_devp[i] = kzalloc(sizeof(struct smd_pkt_dev),
- GFP_KERNEL);
- if (!smd_pkt_devp[i]) {
- pr_err("kmalloc() failed\n");
- goto clean_cdevs;
- }
-
- smd_pkt_devp[i]->i = i;
-
- init_waitqueue_head(&smd_pkt_devp[i]->ch_read_wait_queue);
- smd_pkt_devp[i]->remote_open = 0;
- init_waitqueue_head(&smd_pkt_devp[i]->ch_opened_wait_queue);
-
- mutex_init(&smd_pkt_devp[i]->ch_lock);
- mutex_init(&smd_pkt_devp[i]->rx_lock);
- mutex_init(&smd_pkt_devp[i]->tx_lock);
-
- cdev_init(&smd_pkt_devp[i]->cdev, &smd_pkt_fops);
- smd_pkt_devp[i]->cdev.owner = THIS_MODULE;
-
- r = cdev_add(&smd_pkt_devp[i]->cdev,
- (smd_pkt_number + i), 1);
- if (r) {
- pr_err("cdev_add() failed %d\n", r);
- kfree(smd_pkt_devp[i]);
- goto clean_cdevs;
- }
-
- smd_pkt_devp[i]->devicep =
- device_create(smd_pkt_classp, NULL,
- (smd_pkt_number + i), NULL,
- smd_pkt_dev_name[i]);
- if (IS_ERR(smd_pkt_devp[i]->devicep)) {
- r = PTR_ERR(smd_pkt_devp[i]->devicep);
- pr_err("device_create() failed %d\n", r);
- cdev_del(&smd_pkt_devp[i]->cdev);
- kfree(smd_pkt_devp[i]);
- goto clean_cdevs;
- }
-
- }
-
- pr_info("SMD Packet Port Driver Initialized.\n");
- return 0;
-
-clean_cdevs:
- if (i > 0) {
- while (--i >= 0) {
- mutex_destroy(&smd_pkt_devp[i]->ch_lock);
- mutex_destroy(&smd_pkt_devp[i]->rx_lock);
- mutex_destroy(&smd_pkt_devp[i]->tx_lock);
- cdev_del(&smd_pkt_devp[i]->cdev);
- kfree(smd_pkt_devp[i]);
- device_destroy(smd_pkt_classp,
- MKDEV(MAJOR(smd_pkt_number), i));
- }
- }
-
- class_destroy(smd_pkt_classp);
-unreg_chardev:
- unregister_chrdev_region(MAJOR(smd_pkt_number), NUM_SMD_PKT_PORTS);
- return r;
-}
-module_init(smd_pkt_init);
-
-static void __exit smd_pkt_cleanup(void)
-{
- int i;
-
- for (i = 0; i < NUM_SMD_PKT_PORTS; ++i) {
- mutex_destroy(&smd_pkt_devp[i]->ch_lock);
- mutex_destroy(&smd_pkt_devp[i]->rx_lock);
- mutex_destroy(&smd_pkt_devp[i]->tx_lock);
- cdev_del(&smd_pkt_devp[i]->cdev);
- kfree(smd_pkt_devp[i]);
- device_destroy(smd_pkt_classp,
- MKDEV(MAJOR(smd_pkt_number), i));
- }
-
- class_destroy(smd_pkt_classp);
- unregister_chrdev_region(MAJOR(smd_pkt_number), NUM_SMD_PKT_PORTS);
-}
-module_exit(smd_pkt_cleanup);
-
-MODULE_DESCRIPTION("MSM Shared Memory Packet Port");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c
index 8dd48a2be..fc061f7c2 100644
--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -532,9 +532,8 @@ static int reader_config(struct pcmcia_device *link, int devno)
fail_rc = pcmcia_enable_device(link);
if (fail_rc != 0) {
- dev_printk(KERN_INFO, &link->dev,
- "pcmcia_enable_device failed 0x%x\n",
- fail_rc);
+ dev_info(&link->dev, "pcmcia_enable_device failed 0x%x\n",
+ fail_rc);
goto cs_release;
}
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 0ea998605..7680d5213 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -437,7 +437,7 @@ static int mgslpc_device_count = 0;
* .text section address and breakpoint on module load.
* This is useful for use with gdb and add-symbol-file command.
*/
-static bool break_on_load=0;
+static bool break_on_load;
/*
* Driver major number, defaults to zero to get auto
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 9cd6968e2..d0da5d852 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -409,6 +409,9 @@ static DECLARE_WAIT_QUEUE_HEAD(random_write_wait);
static DECLARE_WAIT_QUEUE_HEAD(urandom_init_wait);
static struct fasync_struct *fasync;
+static DEFINE_SPINLOCK(random_ready_list_lock);
+static LIST_HEAD(random_ready_list);
+
/**********************************************************************
*
* OS independent entropy store. Here are the functions which handle
@@ -589,6 +592,22 @@ static void fast_mix(struct fast_pool *f)
f->count++;
}
+static void process_random_ready_list(void)
+{
+ unsigned long flags;
+ struct random_ready_callback *rdy, *tmp;
+
+ spin_lock_irqsave(&random_ready_list_lock, flags);
+ list_for_each_entry_safe(rdy, tmp, &random_ready_list, list) {
+ struct module *owner = rdy->owner;
+
+ list_del_init(&rdy->list);
+ rdy->func(rdy);
+ module_put(owner);
+ }
+ spin_unlock_irqrestore(&random_ready_list_lock, flags);
+}
+
/*
* Credit (or debit) the entropy store with n bits of entropy.
* Use credit_entropy_bits_safe() if the value comes from userspace
@@ -660,7 +679,8 @@ retry:
r->entropy_total = 0;
if (r == &nonblocking_pool) {
prandom_reseed_late();
- wake_up_interruptible(&urandom_init_wait);
+ process_random_ready_list();
+ wake_up_all(&urandom_init_wait);
pr_notice("random: %s pool is initialized\n", r->name);
}
}
@@ -1245,6 +1265,64 @@ void get_random_bytes(void *buf, int nbytes)
EXPORT_SYMBOL(get_random_bytes);
/*
+ * Add a callback function that will be invoked when the nonblocking
+ * pool is initialised.
+ *
+ * returns: 0 if callback is successfully added
+ * -EALREADY if pool is already initialised (callback not called)
+ * -ENOENT if module for callback is not alive
+ */
+int add_random_ready_callback(struct random_ready_callback *rdy)
+{
+ struct module *owner;
+ unsigned long flags;
+ int err = -EALREADY;
+
+ if (likely(nonblocking_pool.initialized))
+ return err;
+
+ owner = rdy->owner;
+ if (!try_module_get(owner))
+ return -ENOENT;
+
+ spin_lock_irqsave(&random_ready_list_lock, flags);
+ if (nonblocking_pool.initialized)
+ goto out;
+
+ owner = NULL;
+
+ list_add(&rdy->list, &random_ready_list);
+ err = 0;
+
+out:
+ spin_unlock_irqrestore(&random_ready_list_lock, flags);
+
+ module_put(owner);
+
+ return err;
+}
+EXPORT_SYMBOL(add_random_ready_callback);
+
+/*
+ * Delete a previously registered readiness callback function.
+ */
+void del_random_ready_callback(struct random_ready_callback *rdy)
+{
+ unsigned long flags;
+ struct module *owner = NULL;
+
+ spin_lock_irqsave(&random_ready_list_lock, flags);
+ if (!list_empty(&rdy->list)) {
+ list_del_init(&rdy->list);
+ owner = rdy->owner;
+ }
+ spin_unlock_irqrestore(&random_ready_list_lock, flags);
+
+ module_put(owner);
+}
+EXPORT_SYMBOL(del_random_ready_callback);
+
+/*
* This function will use the architecture-specific hardware random
* number generator if it is available. The arch-specific hw RNG will
* almost certainly be faster than what we can do in software, but it
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 5fc291c61..60316fbaf 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -12,6 +12,7 @@
#include <linux/fs.h>
#include <linux/major.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include <linux/module.h>
#include <linux/raw.h>
#include <linux/capability.h>
diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c
index 8bab59292..8a80ead8d 100644
--- a/drivers/char/snsc.c
+++ b/drivers/char/snsc.c
@@ -198,7 +198,7 @@ scdrv_read(struct file *file, char __user *buf, size_t count, loff_t *f_pos)
add_wait_queue(&sd->sd_rq, &wait);
spin_unlock_irqrestore(&sd->sd_rlock, flags);
- schedule_timeout(SCDRV_TIMEOUT);
+ schedule_timeout(msecs_to_jiffies(SCDRV_TIMEOUT));
remove_wait_queue(&sd->sd_rq, &wait);
if (signal_pending(current)) {
@@ -294,7 +294,7 @@ scdrv_write(struct file *file, const char __user *buf,
add_wait_queue(&sd->sd_wq, &wait);
spin_unlock_irqrestore(&sd->sd_wlock, flags);
- schedule_timeout(SCDRV_TIMEOUT);
+ schedule_timeout(msecs_to_jiffies(SCDRV_TIMEOUT));
remove_wait_queue(&sd->sd_wq, &wait);
if (signal_pending(current)) {
diff --git a/drivers/char/tpm/tpm_of.c b/drivers/char/tpm/tpm_of.c
index c002d1bd9..eebe62569 100644
--- a/drivers/char/tpm/tpm_of.c
+++ b/drivers/char/tpm/tpm_of.c
@@ -49,7 +49,7 @@ int read_log(struct tpm_bios_log *log)
basep = of_get_property(np, "linux,sml-base", NULL);
if (basep == NULL) {
- pr_err(KERN_ERR "%s: ERROR - SML not found\n", __func__);
+ pr_err("%s: ERROR - SML not found\n", __func__);
goto cleanup_eio;
}
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 50754d203..d2406fe25 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1492,8 +1492,8 @@ static int add_port(struct ports_device *portdev, u32 id)
* Finally, create the debugfs file that we can use to
* inspect a port's state at any time
*/
- sprintf(debugfs_name, "vport%up%u",
- port->portdev->vdev->index, id);
+ snprintf(debugfs_name, sizeof(debugfs_name), "vport%up%u",
+ port->portdev->vdev->index, id);
port->debugfs_file = debugfs_create_file(debugfs_name, 0444,
pdrvdata.debugfs_dir,
port,
diff --git a/drivers/char/xilinx_hwicap/buffer_icap.c b/drivers/char/xilinx_hwicap/buffer_icap.c
index 05d897764..53c3882e4 100644
--- a/drivers/char/xilinx_hwicap/buffer_icap.c
+++ b/drivers/char/xilinx_hwicap/buffer_icap.c
@@ -270,7 +270,7 @@ int buffer_icap_set_configuration(struct hwicap_drvdata *drvdata, u32 *data,
int status;
s32 buffer_count = 0;
s32 num_writes = 0;
- bool dirty = 0;
+ bool dirty = false;
u32 i;
void __iomem *base_address = drvdata->base_address;
@@ -279,7 +279,7 @@ int buffer_icap_set_configuration(struct hwicap_drvdata *drvdata, u32 *data,
/* Copy data to bram */
buffer_icap_set_bram(base_address, buffer_count, data[i]);
- dirty = 1;
+ dirty = true;
if (buffer_count < XHI_MAX_BUFFER_INTS - 1) {
buffer_count++;
@@ -299,7 +299,7 @@ int buffer_icap_set_configuration(struct hwicap_drvdata *drvdata, u32 *data,
buffer_count = 0;
num_writes++;
- dirty = 0;
+ dirty = false;
}
/* Write unwritten data to ICAP */
diff --git a/drivers/char/xillybus/Kconfig b/drivers/char/xillybus/Kconfig
index b53bdf12d..b302684d8 100644
--- a/drivers/char/xillybus/Kconfig
+++ b/drivers/char/xillybus/Kconfig
@@ -24,7 +24,7 @@ config XILLYBUS_PCIE
config XILLYBUS_OF
tristate "Xillybus over Device Tree"
- depends on OF_ADDRESS && OF_IRQ
+ depends on OF_ADDRESS && OF_IRQ && HAS_DMA
help
Set to M if you want Xillybus to find its resources from the
Open Firmware Flattened Device Tree. If the target is an embedded
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-09 05:50:26 +0000