From: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
To: Matan Azrad <matan@mellanox.com>,
"jerin.jacob@caviumnetworks.com" <jerin.jacob@caviumnetworks.com>,
"keith.wiles@intel.com" <keith.wiles@intel.com>,
Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v3 1/2] eal: add API to align integer to previous power of 2
Date: Thu, 5 Apr 2018 00:06:00 +0530 [thread overview]
Message-ID: <20180404183559.GA2381@ltp-pvn> (raw)
In-Reply-To: <AM4PR0501MB2657E10ADCCEE8CF187F833BD2A40@AM4PR0501MB2657.eurprd05.prod.outlook.com>
On Wed, Apr 04, 2018 at 06:23:19PM +0000, Matan Azrad wrote:
> Hi Pavan
>
> From: Pavan Nikhilesh, Wednesday, April 4, 2018 9:16 PM
> > Hi Matan,
> >
> > >
> > > Got you.
> > > Looks like you found issue here...
> > > The experimental tag probably should be in a root .h file.
> > > Probably, need a fix patch to move it for a different\new .h file.
> > >
> > > What do you think?
> > >
> >
> > Actually thats just start of the rabbit hole, if we succeed to tag a inline
> > function in rte_common.h as experimental every lib/driver that uses
> > rte_common.h (almost everything) needs to have CFLAGS set to -
> > DALLOW_EXPERIMENTAL_API.
> >
>
> Isn't it relevant only for the libs which are using the new tagged APIs?
Static inline functions in .h files will be added to each and every .c
example preprocessor output for rte_pci.c which includes rte_common.h:
# 231 "/home/pavan/Work/clean/dpdk/build/include/rte_common.h"
extern int RTE_BUILD_BUG_ON_detected_error;
# 249 "/home/pavan/Work/clean/dpdk/build/include/rte_common.h"
static inline uint32_t __attribute__((deprecated("Symbol is not yet part of stable ABI"), section(".text.experimental")))
rte_combine32ms1b(register uint32_t x)
{
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
return x;
}
# 271 "/home/pavan/Work/clean/dpdk/build/include/rte_common.h"
static inline uint64_t
rte_combine64ms1b(register uint64_t v)
{
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
v |= v >> 32;
return v;
}
Which causes compiler to throw error as DALLOW_EXPERIMENTAL_API is not added
to cflags.
>
> > Regards,
> > Pavan.
next prev parent reply other threads:[~2018-04-04 18:36 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-17 10:49 [dpdk-dev] [PATCH " Pavan Nikhilesh
2018-02-17 10:49 ` [dpdk-dev] [PATCH 2/2] test: update common auto test Pavan Nikhilesh
2018-02-18 6:11 ` [dpdk-dev] [PATCH 1/2] eal: add API to align integer to previous power of 2 Matan Azrad
2018-02-18 15:39 ` Wiles, Keith
2018-02-19 6:03 ` Matan Azrad
2018-02-19 13:55 ` Wiles, Keith
2018-02-19 14:13 ` Matan Azrad
2018-02-19 14:21 ` Wiles, Keith
2018-02-19 16:18 ` Thomas Monjalon
2018-02-19 8:36 ` Pavan Nikhilesh
2018-02-19 11:36 ` [dpdk-dev] [PATCH v2 " Pavan Nikhilesh
2018-02-19 11:36 ` [dpdk-dev] [PATCH v2 2/2] test: update common auto test Pavan Nikhilesh
2018-02-19 12:09 ` [dpdk-dev] [PATCH v2 1/2] eal: add API to align integer to previous power of 2 Matan Azrad
2018-02-26 19:10 ` Pavan Nikhilesh
2018-02-27 19:30 ` Matan Azrad
2018-04-04 10:16 ` [dpdk-dev] [PATCH v3 " Pavan Nikhilesh
2018-04-04 10:16 ` [dpdk-dev] [PATCH v3 2/2] test: update common auto test Pavan Nikhilesh
2018-04-04 12:49 ` Thomas Monjalon
2018-04-04 12:54 ` Pavan Nikhilesh
2018-04-04 16:10 ` [dpdk-dev] [PATCH v3 1/2] eal: add API to align integer to previous power of 2 Matan Azrad
2018-04-04 16:42 ` Pavan Nikhilesh
2018-04-04 17:11 ` Matan Azrad
2018-04-04 17:51 ` Pavan Nikhilesh
2018-04-04 18:10 ` Matan Azrad
2018-04-04 18:15 ` Pavan Nikhilesh
2018-04-04 18:23 ` Matan Azrad
2018-04-04 18:36 ` Pavan Nikhilesh [this message]
2018-04-04 19:41 ` Matan Azrad
2018-04-04 13:20 ` [dpdk-dev] [PATCH v4] " Pavan Nikhilesh
2018-04-04 15:23 ` Thomas Monjalon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180404183559.GA2381@ltp-pvn \
--to=pbhagavatula@caviumnetworks.com \
--cc=dev@dpdk.org \
--cc=jerin.jacob@caviumnetworks.com \
--cc=keith.wiles@intel.com \
--cc=matan@mellanox.com \
--cc=thomas@monjalon.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).