diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/hpet.c | 2 | ||||
| -rw-r--r-- | drivers/char/hw_random/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 3 | ||||
| -rw-r--r-- | drivers/char/random.c | 22 |
4 files changed, 25 insertions, 3 deletions
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 240b6cf1d97c..be54e5331a45 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -42,7 +42,7 @@ /* * The High Precision Event Timer driver. * This driver is closely modelled after the rtc.c driver. - * http://www.intel.com/hardwaredesign/hpetspec_1.pdf + * See HPET spec revision 1. */ #define HPET_USER_FREQ (64) #define HPET_DRIFT (500) diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index dbf22719462f..ff00331bff49 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -372,6 +372,7 @@ config HW_RANDOM_XGENE config HW_RANDOM_STM32 tristate "STMicroelectronics STM32 random number generator" depends on HW_RANDOM && (ARCH_STM32 || COMPILE_TEST) + depends on HAS_IOMEM help This driver provides kernel-side support for the Random Number Generator hardware found on STM32 microcontrollers. diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 9fda22e3387e..7fddd8696211 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -68,6 +68,7 @@ #include <linux/of_platform.h> #include <linux/of_address.h> #include <linux/of_irq.h> +#include <linux/acpi.h> #ifdef CONFIG_PARISC #include <asm/hardware.h> /* for register_parisc_driver() stuff */ @@ -2054,8 +2055,6 @@ static int hardcode_find_bmc(void) #ifdef CONFIG_ACPI -#include <linux/acpi.h> - /* * Once we get an ACPI failure, we don't try any more, because we go * through the tables sequentially. Once we don't find a table, there diff --git a/drivers/char/random.c b/drivers/char/random.c index d0da5d852d41..b583e5336630 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1819,6 +1819,28 @@ unsigned int get_random_int(void) EXPORT_SYMBOL(get_random_int); /* + * Same as get_random_int(), but returns unsigned long. + */ +unsigned long get_random_long(void) +{ + __u32 *hash; + unsigned long ret; + + if (arch_get_random_long(&ret)) + return ret; + + hash = get_cpu_var(get_random_int_hash); + + hash[0] += current->pid + jiffies + random_get_entropy(); + md5_transform(hash, random_int_secret); + ret = *(unsigned long *)hash; + put_cpu_var(get_random_int_hash); + + return ret; +} +EXPORT_SYMBOL(get_random_long); + +/* * randomize_range() returns a start address such that * * [...... <range> .....] |