patches for DPDK stable branches
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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Ivan Malov <Ivan.Malov@oktetlabs.ru>,
	Gregory Etelson <getelson@nvidia.com>,
	dev@dpdk.org
Cc: matan@nvidia.com, rasland@nvidia.com, stable@dpdk.org,
	Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
	Ori Kam <orika@nvidia.com>, Thomas Monjalon <thomas@monjalon.net>,
	Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
	Andy Moreton <amoreton@xilinx.com>
Subject: Re: [dpdk-stable] [PATCH] ethdev: fix VXLAN mask initialization value
Date: Fri, 9 Apr 2021 10:28:31 +0100
Message-ID: <f333a92a-ff6b-fc4f-0f6d-041be4007bde@intel.com> (raw)
In-Reply-To: <df123db2-b743-d85b-b55c-d5dfcb2c24d8@oktetlabs.ru>

On 4/8/2021 5:31 PM, Ivan Malov wrote:
> On 4/8/2021 7:48 AM, Gregory Etelson wrote:
>> In GCC compiler, __builtin_constant_p(exp) is a function.
>> The function returns the integer 1 if the argument is known to be
>> a compile-time constant.
>> Therefore, __builtin_constant_p(0xffffff << 8) returned 1.
>> As the result, rte_flow_item_vxlan_mask was initiated to
>> {{
>>    {flags = 0x0, rsvd0 = {0x0, 0x0, 0x0},
>>     vni = {0x0, 0x0, 0x0}, rsvd1 = 0x1},
>>    hdr = {vx_flags = 0x0, vx_vni = 0x1000000}}}
>> }}
>> GCC fails initialization
>> rte_flow_item_vxlan_mask.hdr.vni = (0xffffff << 8)
>> with "initializer element is not a constant expression" error.
>> Use immediate 0xffffff00 value instead.
>>
>> Cc: stable@dpdk.org
>> Fixes: 43af98e687cf ("ethdev: reuse VXLAN header definition in flow 
> item")
>>
>> Signed-off-by: Gregory Etelson <getelson@nvidia.com>
>> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> 
> Reviewed-by: Ivan Malov <ivan.malov@oktetlabs.ru>
> 

Applied to dpdk-next-net/main, thanks.

      reply	other threads:[~2021-04-09  9:28 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-08  6:48 Gregory Etelson
2021-04-08 15:35 ` Ferruh Yigit
2021-04-08 16:31   ` Ivan Malov
2021-04-09  9:28     ` Ferruh Yigit [this message]

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