drbd: Introduce __s32_field in the genetlink macro magic
...and drop explicit typecasts (int)meta_dev_idx < 0.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h
index f2c7cc7..ddbdd0a 100644
--- a/include/linux/genl_magic_struct.h
+++ b/include/linux/genl_magic_struct.h
@@ -97,6 +97,9 @@
#define __u32_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U32, __u32, \
nla_get_u32, NLA_PUT_U32)
+#define __s32_field(attr_nr, attr_flag, name) \
+ __field(attr_nr, attr_flag, name, NLA_U32, __s32, \
+ nla_get_u32, NLA_PUT_U32)
#define __u64_field(attr_nr, attr_flag, name) \
__field(attr_nr, attr_flag, name, NLA_U64, __u64, \
nla_get_u64, NLA_PUT_U64)