mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-06 08:46:46 +00:00
sparc: use fallback for random_get_entropy() instead of zero
commit ac9756c797
upstream.
In the event that random_get_entropy() can't access a cycle counter or
similar, falling back to returning 0 is really not the best we can do.
Instead, at least calling random_get_entropy_fallback() would be
preferable, because that always needs to return _something_, even
falling back to jiffies eventually. It's not as though
random_get_entropy_fallback() is super high precision or guaranteed to
be entropic, but basically anything that's not zero all the time is
better than returning zero all the time.
This is accomplished by just including the asm-generic code like on
other architectures, which means we can get rid of the empty stub
function here.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
d876dca6ed
commit
b4582cb351
1 changed files with 1 additions and 3 deletions
|
@ -9,8 +9,6 @@
|
|||
|
||||
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
|
||||
|
||||
/* XXX Maybe do something better at some point... -DaveM */
|
||||
typedef unsigned long cycles_t;
|
||||
#define get_cycles() (0)
|
||||
#include <asm-generic/timex.h>
|
||||
|
||||
#endif
|
||||
|
|
Loading…
Reference in a new issue