Commit 1d4c79ed authored by Linus Torvalds's avatar Linus Torvalds
Browse files
Pull crypto fix from Herbert Xu:
 "This reverts a number of changes to the khwrng thread which feeds the
  kernel random number pool from hwrng drivers. They were trying to fix
  issues with suspend-and-resume but ended up causing regressions"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  Revert "hwrng: core - Freeze khwrng thread during suspend"
parents fe30021c 08e97aec
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+1 −4
Original line number Diff line number Diff line
@@ -13,7 +13,6 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/freezer.h>
#include <linux/fs.h>
#include <linux/hw_random.h>
#include <linux/kernel.h>
@@ -422,9 +421,7 @@ static int hwrng_fillfn(void *unused)
{
	long rc;

	set_freezable();

	while (!kthread_freezable_should_stop(NULL)) {
	while (!kthread_should_stop()) {
		struct hwrng *rng;

		rng = get_current_rng();
+1 −3
Original line number Diff line number Diff line
@@ -327,7 +327,6 @@
#include <linux/percpu.h>
#include <linux/cryptohash.h>
#include <linux/fips.h>
#include <linux/freezer.h>
#include <linux/ptrace.h>
#include <linux/workqueue.h>
#include <linux/irq.h>
@@ -2500,8 +2499,7 @@ void add_hwgenerator_randomness(const char *buffer, size_t count,
	 * We'll be woken up again once below random_write_wakeup_thresh,
	 * or when the calling thread is about to terminate.
	 */
	wait_event_freezable(random_write_wait,
			kthread_should_stop() ||
	wait_event_interruptible(random_write_wait, kthread_should_stop() ||
			ENTROPY_BITS(&input_pool) <= random_write_wakeup_bits);
	mix_pool_bytes(poolp, buffer, count);
	credit_entropy_bits(poolp, entropy);