From: Jiri Benc Subject: Enable e1000 as entropy source (disabled by default) References: FATE#307517 Patch-mainline: never Based on the patch by Oracle: > e1000: Add IRQF_SAMPLE_RANDOM flag to e1000 as a module option > > This patch allows for the bnx2 to add to the /dev/random entropy pool > via a module parameter, entropy. > > 0 - default for EL5 - do not populate the entropy pool > 1 - optional - Uses IRQF_SAMPLE_RANDOM flag on request_irq calls to populate > the /dev/random pool > > Signed-off-by: John Sobecki Signed-off-by: Brandon Philips --- drivers/net/e1000/e1000_main.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -213,6 +213,10 @@ static int debug = NETIF_MSG_DRV | NETIF module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); +static int entropy = 0; +module_param(entropy, int, 0); +MODULE_PARM_DESC(entropy, "Allow e1000 to populate the /dev/random entropy pool"); + /** * e1000_get_hw_dev - return device * used by hardware layer to print debugging information @@ -272,6 +276,9 @@ static int e1000_request_irq(struct e100 int irq_flags = IRQF_SHARED; int err; + if (entropy) + irq_flags |= IRQF_SAMPLE_RANDOM; + err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name, netdev); if (err) {