1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h
index 74350d63f686..6cfbb419e2f6 100644
--- a/drivers/net/wireless/ath/carl9170/carl9170.h
+++ b/drivers/net/wireless/ath/carl9170/carl9170.h
@@ -43,6 +43,7 @@
 #include <linux/firmware.h>
 #include <linux/completion.h>
 #include <linux/spinlock.h>
+#include <linux/hw_random.h>
 #include <net/cfg80211.h>
 #include <net/mac80211.h>
 #include <linux/usb.h>
@@ -449,6 +450,17 @@ struct ar9170 {
                 unsigned int off_override;
                 bool state;
         } ps;
+
+#ifdef CONFIG_CARL9170_HWRNG
+# define CARL9170_HWRNG_CACHE_SIZE      CARL9170_MAX_CMD_PAYLOAD_LEN
+        struct {
+                struct hwrng rng;
+                bool initialized;
+                char name[30 + 1];
+                u16 cache[CARL9170_HWRNG_CACHE_SIZE / sizeof(u16)];
+                unsigned int cache_idx;
+        } rng;
+#endif /* CONFIG_CARL9170_HWRNG */
 };
 
 enum carl9170_ps_off_override_reasons {