From: George Spelvin <lkml@xxxxxxx>
We don't need crypto-grade random numbers for randomized backoffs.
Instead use prandom_u32_max(ep_ro) which generates a pseudo-random
number uniformly distributed in the interval [0, ep_ro).
Signed-off-by: George Spelvin <lkml@xxxxxxx>
Reviewed-by: Steffen Maier <maier@xxxxxxxxxxxxx>
Signed-off-by: Benjamin Block <bblock@xxxxxxxxxxxxx>
---
drivers/s390/scsi/zfcp_fc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index b018b61bd168..d24cafe02708 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -48,7 +48,7 @@ unsigned int zfcp_fc_port_scan_backoff(void)
{
if (!port_scan_backoff)
return 0;
- return get_random_int() % port_scan_backoff;
+ return prandom_u32_max(port_scan_backoff);
}
static void zfcp_fc_port_scan_time(struct zfcp_adapter *adapter)
--
2.26.2
