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author | Dave Airlie <airlied@redhat.com> | 2016-03-14 09:42:34 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2016-03-14 09:46:02 +1000 |
commit | 9b61c0fcdf0cfd20a85d9856d46142e7f297de0a (patch) | |
tree | d4abe6aa3f4e1e088f9da1d0597e078b1fe58912 /drivers/char | |
parent | 550e3b23a53c88adfa46e64f9d442743e65d47da (diff) | |
parent | 125234dc8b1cc862f52d8bd5b37c36cc59b2cb86 (diff) | |
download | linux-9b61c0fcdf0cfd20a85d9856d46142e7f297de0a.tar.bz2 |
Merge drm-fixes into drm-next.
Nouveau wanted this to avoid some worse conflicts when I merge that.
Diffstat (limited to 'drivers/char')
-rw-r--r-- | drivers/char/hpet.c | 2 | ||||
-rw-r--r-- | drivers/char/random.c | 22 |
2 files changed, 23 insertions, 1 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/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> .....] |