From: Stephen Hemminger <stephen@networkplumber.org>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, maxime.coquelin@redhat.com
Subject: Re: [dpdk-dev] [PATCH] rte_reciprocal: make arg to rte_reciprocal_divide_u64 const
Date: Tue, 2 Apr 2019 08:26:19 -0700 [thread overview]
Message-ID: <20190402082619.4ea83500@shemminger-XPS-13-9360> (raw)
Message-ID: <20190402152619.72Zh2ZhKb7CiN-gPtufiq8VVE1CW5Mq-pCyiMtkaAXI@z> (raw)
In-Reply-To: <4147107.f6clCcuQYr@xps>
On Wed, 27 Mar 2019 12:14:44 +0100
Thomas Monjalon <thomas@monjalon.net> wrote:
> 21/03/2019 20:59, Stephen Hemminger:
> > The divisor is not modified here. Doesn't really matter for optimizaton
> > since the function is inline already; but helps with expressing
> > intent.
> >
> > Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> > ---
> > static __rte_always_inline uint64_t
> > -rte_reciprocal_divide_u64(uint64_t a, struct rte_reciprocal_u64 *R)
> > +rte_reciprocal_divide_u64(uint64_t a, const struct rte_reciprocal_u64 *R)
>
> Why not doing the same change for rte_reciprocal_divide()?
It doesn't make sense for rte_reciprocal_divide since rte_reciprocal_divide
is call by value (ie doesn't take a pointer).
> Should we advertise such API change?
No. Since constant is always less intrusive than previous version
all cases will work the same.
next prev parent reply other threads:[~2019-04-02 15:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-21 19:59 Stephen Hemminger
2019-03-21 19:59 ` Stephen Hemminger
2019-03-22 18:09 ` Maxime Coquelin
2019-03-22 18:09 ` Maxime Coquelin
2019-04-03 16:17 ` Thomas Monjalon
2019-04-03 16:17 ` Thomas Monjalon
2019-03-27 11:14 ` Thomas Monjalon
2019-03-27 11:14 ` Thomas Monjalon
2019-04-02 15:26 ` Stephen Hemminger [this message]
2019-04-02 15:26 ` Stephen Hemminger
2019-04-02 16:05 ` Thomas Monjalon
2019-04-02 16:05 ` Thomas Monjalon
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