Merge branch 'for-linus' of git://git.kernel.dk/linux-block

[deliverable/linux.git] / drivers / nvme / target / core.c

diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 8a891ca53367eaa6498f8326e745b081a110157e..6559d5afa7bfd9f808281658f686429c53fc7903 100644 (file)
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -13,6 +13,7 @@
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 #include <linux/module.h>
+#include <linux/random.h>
 #include "nvmet.h"
 
 static struct nvmet_fabrics_ops *nvmet_transports[NVMF_TRTYPE_MAX];
@@ -728,6 +729,9 @@ u16 nvmet_alloc_ctrl(const char *subsysnqn, const char *hostnqn,
        memcpy(ctrl->subsysnqn, subsysnqn, NVMF_NQN_SIZE);
        memcpy(ctrl->hostnqn, hostnqn, NVMF_NQN_SIZE);
 
+       /* generate a random serial number as our controllers are ephemeral: */
+       get_random_bytes(&ctrl->serial, sizeof(ctrl->serial));
+
        kref_init(&ctrl->ref);
        ctrl->subsys = subsys;