summaryrefslogtreecommitdiff
path: root/include/linux/random.h
diff options
context:
space:
mode:
authorH. Peter Anvin <hpa@linux.intel.com>2014-03-17 16:36:30 -0700
committerTheodore Ts'o <tytso@mit.edu>2014-03-19 22:24:08 -0400
commit7b878d4b48c4e04b936918bb83836a107ba453b3 (patch)
tree83df1d702e0162dc7785730356d934b8d59c45e2 /include/linux/random.h
parent331c6490c7f10dcf263712e313b7c0bc7fb6d77a (diff)
random: Add arch_has_random[_seed]()
Add predicate functions for having arch_get_random[_seed]*(). The only current use is to avoid the loop in arch_random_refill() when arch_get_random_seed_long() is unavailable. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/linux/random.h')
-rw-r--r--include/linux/random.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/random.h b/include/linux/random.h
index c2f08131050d..57fbbffd77a0 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -88,6 +88,10 @@ static inline int arch_get_random_int(unsigned int *v)
{
return 0;
}
+static inline int arch_has_random(void)
+{
+ return 0;
+}
static inline int arch_get_random_seed_long(unsigned long *v)
{
return 0;
@@ -96,6 +100,10 @@ static inline int arch_get_random_seed_int(unsigned int *v)
{
return 0;
}
+static inline int arch_has_random_seed(void)
+{
+ return 0;
+}
#endif
/* Pseudo random number generator from numerical recipes. */