From: James Smart <james.smart@emulex.com>
To: linux-scsi@vger.kernel.org
Subject: [PATCH 8/19] lpfc 10.4.8000.0: random32: do not feed jiffies as seed from lpfc driver
Date: Wed, 3 Sep 2014 12:56:20 -0400 [thread overview]
Message-ID: <1409763380.12357.8.camel@myfc17> (raw)
Incorporating prior patch:
http://marc.info/?l=linux-scsi&m=140688548016998&w=2
Daniel Borkmann <dborkman@redhat.com>
[PATCH] random32: do not feed jiffies as seed from lpfc driver
In prandom we have already reseeding mechanisms that trigger
periodically from a much better entropy source than just
feeding in jiffies through lpfc_mbx_cmpl_fcf_scan_read_fcf_rec()
[what a function name 8-)]. Therefore, just remove this.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Reviewed-by: James Smart <james.smart@emulex.com>
---
drivers/scsi/lpfc/lpfc_hbadisc.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 667d124..859fffa 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -2147,7 +2147,6 @@ lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
uint16_t fcf_index, next_fcf_index;
struct lpfc_fcf_rec *fcf_rec = NULL;
uint16_t vlan_id;
- uint32_t seed;
bool select_new_fcf;
int rc;
@@ -2384,9 +2383,6 @@ lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
phba->fcf.fcf_flag |= FCF_AVAILABLE;
/* Setup initial running random FCF selection count */
phba->fcf.eligible_fcf_cnt = 1;
- /* Seeding the random number generator for random selection */
- seed = (uint32_t)(0xFFFFFFFF & jiffies);
- prandom_seed(seed);
}
spin_unlock_irq(&phba->hbalock);
goto read_next_fcf;
--
1.7.11.7
reply other threads:[~2014-09-03 16:56 UTC|newest]
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