AHD_SYSCTL_NUMBER
struct sysctl_ctx_list sysctl_ctx[AHD_SYSCTL_NUMBER];
struct sysctl_oid *sysctl_tree[AHD_SYSCTL_NUMBER];
for (i = 0; i < AHD_SYSCTL_NUMBER; i++)
for (i = AHD_SYSCTL_SUMMARY; i < AHD_SYSCTL_NUMBER; i++)