From: Brandon Philips Subject: [PATCH] bnx2: entropy source Patch-mainline: never References: FATE#307517 Current disk-less systems have no entropy source whatsoever. Therefore, the network drivers tg3, bnx2, e1000, e1000e, igb and ixgbe should be enabled to feed entropy to the kernel via the IRQF_SAMPLE_RANDOM flag when loaded. This option shall not be enabled by default but implemented via a module option to be activated by the administrator. Signed-off-by: Brandon Philips --- drivers/net/bnx2.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -84,6 +84,10 @@ MODULE_FIRMWARE(FW_MIPS_FILE_09); MODULE_FIRMWARE(FW_RV2P_FILE_09); MODULE_FIRMWARE(FW_RV2P_FILE_09_Ax); +static int entropy = 0; +module_param(entropy, int, 0); +MODULE_PARM_DESC(entropy, "Allow bnx2 to populate the /dev/random entropy pool"); + static int disable_msi = 0; module_param(disable_msi, int, 0); @@ -6081,6 +6085,9 @@ bnx2_request_irq(struct bnx2 *bp) else flags = IRQF_SHARED; + if (entropy) + flags |= IRQF_SAMPLE_RANDOM; + for (i = 0; i < bp->irq_nvecs; i++) { irq = &bp->irq_tbl[i]; rc = request_irq(irq->vector, irq->handler, flags, irq->name,