From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefano Brivio <sbrivio@redhat.com>
Subject: Re: [PATCH] net: convert gro_count to bitmask
Date: Wed, 11 Jul 2018 12:51:33 +0200
Message-ID: <20180711125133.60528540@epycfail>
References: <1531300553-21413-1-git-send-email-lirongqing@baidu.com>
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Cc: netdev@vger.kernel.org, Eric Dumazet <edumazet@google.com>
To: Li RongQing <lirongqing@baidu.com>
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On Wed, 11 Jul 2018 17:15:53 +0800
Li RongQing <lirongqing@baidu.com> wrote:

> @@ -5380,6 +5382,12 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff
>  	if (grow > 0)
>  		gro_pull_from_frag0(skb, grow);
>  ok:
> +	if (napi->gro_hash[hash].count)
> +		if (!test_bit(hash, &napi->gro_bitmask))
> +			set_bit(hash, &napi->gro_bitmask);
> +	else if (test_bit(hash, &napi->gro_bitmask))
> +		clear_bit(hash, &napi->gro_bitmask);

This might not do what you want.

-- 
Stefano