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From: Thomas Monjalon <thomas@monjalon.net>
To: guohongzhi1@huawei.com
Cc: dev@dpdk.org, stable@dpdk.org, olivier.matz@6wind.com,
	mb@smartsharesystems.com, konstantin.ananyev@intel.com,
	jiayu.hu@intel.com, ferruh.yigit@intel.com,
	nicolas.chautru@intel.com, cristian.dumitrescu@intel.com,
	zhoujingbin@huawei.com, chenchanghu@huawei.com,
	jerry.lilijun@huawei.com, haifeng.lin@huawei.com
Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH] bugfix: rte_raw_checksum
Date: Wed, 24 Jun 2020 14:21:59 +0200	[thread overview]
Message-ID: <2108086.oFbrkSXBjQ@thomas> (raw)
In-Reply-To: <20200527134009.19444-1-guohongzhi1@huawei.com>

27/05/2020 15:40, guohongzhi:
> From: Hongzhi Guo <guohongzhi1@huawei.com>
> 
> __rte_raw_cksum should consider Big Endian.

We need to explain the logic in the commit log.

> Signed-off-by: Hongzhi Guo <guohongzhi1@huawei.com>
> ---
> +#if (RTE_BYTE_ORDER == RTE_BIG_ENDIAN)
> +		sum += *((const uint8_t *)u16_buf) << 8;
> +#else
>  		sum += *((const uint8_t *)u16_buf);
> +#endif

*((const uint8_t *)u16_buf) should be an uint8_t.
What is the expected behaviour of shifting 8 bits of a byte?



  parent reply	other threads:[~2020-06-24 12:22 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-27 13:40 [dpdk-dev] " guohongzhi
2020-05-27 14:58 ` Morten Brørup
2020-06-24 12:21 ` Thomas Monjalon [this message]
2020-06-24 13:00   ` [dpdk-dev] [dpdk-stable] " Morten Brørup
2020-06-24 15:04     ` Thomas Monjalon
2020-06-24 15:11       ` Morten Brørup
2020-07-06  7:36         ` Olivier Matz
2020-07-06  7:46           ` Olivier Matz

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