soc: sifive: l2 cache: Mark l2_get_priv_group as static

The kbuild test robot is firing a warning over a missing prototype.  The
function can just be static.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

diff --git a/drivers/soc/sifive/sifive_l2_cache.c b/drivers/soc/sifive/sifive_l2_cache.c
index 51e198880a8dfc0d90f62e464521e133b38f8234..44d7e1951da3bcae0e117b6368b36ad75a007986 100644 (file)
--- a/drivers/soc/sifive/sifive_l2_cache.c
+++ b/drivers/soc/sifive/sifive_l2_cache.c
@@ -133,7 +133,7 @@ static const struct attribute_group priv_attr_group = {
        .attrs = priv_attrs,
 };
 
-const struct attribute_group *l2_get_priv_group(struct cacheinfo *this_leaf)
+static const struct attribute_group *l2_get_priv_group(struct cacheinfo *this_leaf)
 {
        /* We want to use private group for L2 cache only */
        if (this_leaf->level == 2)