It prevents ring_size being set to a too small value.
Reported-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
struct work_struct work;
};
-
+#define RING_SIZE_MIN 64
static int ring_size = 128;
module_param(ring_size, int, S_IRUGO);
MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)");
static int __init netvsc_drv_init(void)
{
+ if (ring_size < RING_SIZE_MIN) {
+ ring_size = RING_SIZE_MIN;
+ pr_info("Increased ring_size to %d (min allowed)\n",
+ ring_size);
+ }
return vmbus_driver_register(&netvsc_drv);
}