netdev - Re: [PATCH net-next v8 2/3] net sched actions: dump more than TCA_ACT_MAX

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Date:   Wed, 26 Apr 2017 10:46:58 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     jiri@...nulli.us
Cc:     jhs@...atatu.com, simon.horman@...ronome.com,
        xiyou.wangcong@...il.com, eric.dumazet@...il.com,
        netdev@...r.kernel.org
Subject: Re: [PATCH net-next v8 2/3] net sched actions: dump more than
 TCA_ACT_MAX_PRIO actions per batch

From: Jiri Pirko <jiri@...nulli.us>
Date: Wed, 26 Apr 2017 15:05:06 +0200

> Wed, Apr 26, 2017 at 02:46:22PM CEST, jhs@...atatu.com wrote:
>>On 17-04-26 07:02 AM, Simon Horman wrote:
>>> On Tue, Apr 25, 2017 at 06:04:45PM +0200, Jiri Pirko wrote:
>>[..]
>>
>>> > So fix iproute2. It is always first kernel, then iproute2.
>>> 
>>> Perhaps I am missing the point or somehow misguided but I would expect that
>>> if the UAPI uses BIT() it also provides BIT().
>>
>>There is a user of BIT() already in iproute2 (devlink). We can move
>>the code to be more generally available for other iproute2 users.
>>Then this UAPI change makes use of it.
> 
> Should be part of UAPI as well
> I see that include/uapi/rdma/vmw_pvrdma-abi.h is using BIT macro.
> I don't see BIT macro defined in UAPI (I thought it is). So either
> define it there (not sure where) or just use "<<"

"BIT" is a pretty crazy small simple name to pollute into the global
namespace, IMHO.