NFT_REG32_NUM
u32 data[NFT_REG32_NUM];
DECLARE_BITMAP(reg_inited, NFT_REG32_NUM);
if (unlikely(next_register > NFT_REG32_NUM)) {
invalid_reg = find_next_zero_bit(ctx->reg_inited, NFT_REG32_NUM, reg);
bitmap_zero(ctx->reg_inited, NFT_REG32_NUM);