b43: Do not "select" HW_RANDOM

Auto-depend on HW_RANDOM, rather than "select"ing it.
This way the user has the choice to enable or disable HWRNG support.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 79b685e300c7..09e0c60d96df 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2980,6 +2980,7 @@ static void b43_security_init(struct b43_wldev *dev)
         b43_clear_keys(dev);
 }
 
+#ifdef CONFIG_B43_HWRNG
 static int b43_rng_read(struct hwrng *rng, u32 *data)
 {
         struct b43_wl *wl = (struct b43_wl *)rng->priv;
@@ -2995,17 +2996,21 @@ static int b43_rng_read(struct hwrng *rng, u32 *data)
 
         return (sizeof(u16));
 }
+#endif /* CONFIG_B43_HWRNG */
 
 static void b43_rng_exit(struct b43_wl *wl)
 {
+#ifdef CONFIG_B43_HWRNG
         if (wl->rng_initialized)
                 hwrng_unregister(&wl->rng);
+#endif /* CONFIG_B43_HWRNG */
 }
 
 static int b43_rng_init(struct b43_wl *wl)
 {
-        int err;
+        int err = 0;
 
+#ifdef CONFIG_B43_HWRNG
         snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
                  "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
         wl->rng.name = wl->rng_name;
@@ -3018,6 +3023,7 @@ static int b43_rng_init(struct b43_wl *wl)
                 b43err(wl, "Failed to register the random "
                        "number generator (%d)\n", err);
         }
+#endif /* CONFIG_B43_HWRNG */
 
         return err;
 }