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lpfc 10.4.8000.0: random32: do not feed jiffies as seed from lpfc driver

PATCH Applied James Smart 1 participant 1 message Sep 3, 2014

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PATCH 8/19 lpfc 10.4.8000.0: random32: do not feed jiffies as seed from lpfc driver

Incorporating prior patch:
http://marc.info/?l=linux-scsi&m=140688548016998&w=2

Daniel Borkmann <[email protected]>
[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.

---
 drivers/scsi/lpfc/lpfc_hbadisc.c | 4 ----
 1 file changed, 4 deletions(-)
drivers/scsi/lpfc/lpfc_hbadisc.c +0 -4
index 667d124..859fffa 100644
@@ -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;
Signature · 1 line
1.7.11.7