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From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
To: David Marchand <david.marchand@redhat.com>
Cc: dev@dpdk.org, nhorman@tuxdriver.com, aconole@redhat.com,
	thomas@monjalon.net, Wenzhuo Lu <wenzhuo.lu@intel.com>,
	Konstantin Ananyev <konstantin.ananyev@intel.com>,
	Jasvinder Singh <jasvinder.singh@intel.com>,
	Cristian Dumitrescu <cristian.dumitrescu@intel.com>,
	Amr Mokhtar <amr.mokhtar@intel.com>,
	Fiona Trahe <fiona.trahe@intel.com>,
	Pablo de Lara <pablo.de.lara.guarch@intel.com>,
	Ashish Gupta <ashish.gupta@marvell.com>,
	Declan Doherty <declan.doherty@intel.com>,
	Bruce Richardson <bruce.richardson@intel.com>,
	Joyce Kong <joyce.kong@arm.com>,
	Anatoly Burakov <anatoly.burakov@intel.com>,
	Harry van Haaren <harry.van.haaren@intel.com>,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	Andrew Rybchenko <arybchenko@solarflare.com>,
	Nikhil Rao <nikhil.rao@intel.com>,
	Jerin Jacob <jerinj@marvell.com>,
	Bernard Iremonger <bernard.iremonger@intel.com>,
	Yipeng Wang <yipeng1.wang@intel.com>,
	Sameh Gobriel <sameh.gobriel@intel.com>,
	Olivier Matz <olivier.matz@6wind.com>,
	David Hunt <david.hunt@intel.com>,
	Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>,
	Akhil Goyal <akhil.goyal@nxp.com>,
	Gage Eads <gage.eads@intel.com>,
	Kevin Laatz <kevin.laatz@intel.com>,
	Robert Sanford <rsanford@akamai.com>,
	Erik Gabriel Carrillo <erik.g.carrillo@intel.com>,
	Maxime Coquelin <maxime.coquelin@redhat.com>,
	Tiwei Bie <tiwei.bie@intel.com>,
	Zhihong Wang <zhihong.wang@intel.com>
Subject: Re: [dpdk-dev] [PATCH 9/9] enforce __rte_experimental at the start of symbol declarations
Date: Thu, 27 Jun 2019 14:23:59 +0200	[thread overview]
Message-ID: <20190627122359.GN4284@6wind.com> (raw)
In-Reply-To: <1561635235-22238-10-git-send-email-david.marchand@redhat.com>

Hey David,

On Thu, Jun 27, 2019 at 01:33:55PM +0200, David Marchand wrote:
> Putting a '__attribute__((deprecated))' in the middle of a function
> prototype does not result in the expected result with gcc (while clang
> is fine with this syntax).
> 
> $ cat deprecated.c
> void * __attribute__((deprecated)) incorrect() { return 0; }
> __attribute__((deprecated)) void *correct(void) { return 0; }
> int main(int argc, char *argv[]) { incorrect(); correct(); return 0; }
> $ gcc -o deprecated.o -c deprecated.c
> deprecated.c: In function ‘main’:
> deprecated.c:3:1: warning: ‘correct’ is deprecated (declared at
> deprecated.c:2) [-Wdeprecated-declarations]
>  int main(int argc, char *argv[]) { incorrect(); correct(); return 0; }
>  ^
> 
> Let's enforce the tag is at the very start of the lines, this is not
> perfect but we will trust reviewers to catch the other not so easy to
> detect patterns.
> 
> tag=__rte_experimental
> git grep -l [^^]$tag |grep \\.h$ |while read file; do
> 	[ "$file" != 'lib/librte_eal/common/include/rte_compat.h' ] ||
> 		continue
> 	sed -i -e 's#^\(.*\)  *'$tag'#'$tag' \1#' $file
> 	sed -i -e 's#^\(..*\)'$tag'#'$tag' \1#' $file
> done

Just a suggestion, how about putting __rte_experimental on its own line
before the actual prototype? So that instead of:

 __rte_experimental struct rte_compressdev * __rte_experimental
 rte_compressdev_pmd_get_named_dev(const char *name);

We'd get:

 __rte_experimental
 struct rte_compressdev *
 rte_compressdev_pmd_get_named_dev(const char *name);

I personally find the latter much more readable.

Here's the relevant sed expression:

 sed -i \
     -e '/^\([^#].*\)__rte_experimental */{' \
     -e 's//\1/; s/ *$//; i\' \
     -e __rte_experimental \
     -e '}' \
     $(git grep -l __rte_experimental -- '*.h')

Otherwise this series looks good to me.

-- 
Adrien Mazarguil
6WIND

  reply	other threads:[~2019-06-27 12:24 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-27 11:33 [dpdk-dev] [PATCH 0/9] experimental tags fixes David Marchand
2019-06-27 11:33 ` [dpdk-dev] [PATCH 1/9] eal: hide internal hotplug symbol David Marchand
2019-06-28 16:25   ` Stephen Hemminger
2019-06-27 11:33 ` [dpdk-dev] [PATCH 2/9] devargs: remove incorrect experimental tags David Marchand
2019-06-28 16:23   ` Stephen Hemminger
2019-06-27 11:33 ` [dpdk-dev] [PATCH 3/9] vfio: remove incorrect experimental tag David Marchand
2019-06-28 16:24   ` Stephen Hemminger
2019-06-27 11:33 ` [dpdk-dev] [PATCH 4/9] raw/dpaa2_qdma: " David Marchand
2019-06-27 11:33 ` [dpdk-dev] [PATCH 5/9] buildtools: detect discrepancies for experimental symbols David Marchand
2019-06-27 11:33 ` [dpdk-dev] [PATCH 6/9] net/atlantic: add missing experimental api tags David Marchand
2019-06-27 11:33 ` [dpdk-dev] [PATCH 7/9] mem: remove incorrect experimental tag on static symbol David Marchand
2019-06-27 11:33 ` [dpdk-dev] [PATCH 8/9] remove experimental tags from all symbol definitions David Marchand
2019-06-28 15:56   ` Thomas Monjalon
2019-06-28 19:20     ` David Marchand
2019-06-29  5:57       ` David Marchand
2019-06-29  6:19         ` David Marchand
2019-07-01  9:57           ` Laatz, Kevin
2019-06-27 11:33 ` [dpdk-dev] [PATCH 9/9] enforce __rte_experimental at the start of symbol declarations David Marchand
2019-06-27 12:23   ` Adrien Mazarguil [this message]
2019-06-27 12:38     ` Gaëtan Rivet
2019-06-28 13:38       ` Thomas Monjalon
2019-06-28 19:58 ` [dpdk-dev] [PATCH 0/9] experimental tags fixes Neil Horman
2019-06-29 11:58 ` [dpdk-dev] [PATCH v2 00/10] " David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 01/10] eal: hide internal hotplug symbol David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 02/10] devargs: remove incorrect experimental tags David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 03/10] vfio: remove incorrect experimental tag David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 04/10] raw/dpaa2_qdma: " David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 05/10] buildtools: detect discrepancies for experimental symbols David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 06/10] net/atlantic: add missing experimental api tags David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 07/10] mem: remove incorrect experimental tag on static symbol David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 08/10] telemetry: add missing header include David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 09/10] remove experimental tags from all symbol definitions David Marchand
2019-06-29 11:58   ` [dpdk-dev] [PATCH v2 10/10] enforce __rte_experimental at the start of symbol declarations David Marchand
2019-06-29 16:13     ` Thomas Monjalon
2019-06-29 16:39       ` David Marchand
2019-07-01 12:05         ` Aaron Conole
2019-07-01 12:08           ` David Marchand
2019-06-29 17:06   ` [dpdk-dev] [PATCH v2 00/10] experimental tags fixes Thomas Monjalon
2019-07-01 14:15     ` Ferruh Yigit
2019-07-01 14:36       ` David Marchand
2019-07-01 15:30         ` Ferruh Yigit
2019-07-01 19:27           ` David Marchand
2019-07-01 21:12             ` Ferruh Yigit

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