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From: Thomas Monjalon <thomas@monjalon.net>
To: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
	"ciara.power@intel.com" <ciara.power@intel.com>,
	Jerin Jacob Kollanukkaran <jerinj@marvell.com>
Subject: Re: [dpdk-dev] [EXT] Re: [v5] telemetry: fix json output buffer size
Date: Thu, 07 Oct 2021 09:22:03 +0200	[thread overview]
Message-ID: <3282535.ZEjqJjJu7l@thomas> (raw)
In-Reply-To: <CO1PR18MB471402870034B9CE70EB2A90CBB19@CO1PR18MB4714.namprd18.prod.outlook.com>

07/10/2021 06:58, Gowrishankar Muthukrishnan:
> From: Thomas Monjalon <thomas@monjalon.net>
> > 29/09/2021 06:18, Gowrishankar Muthukrishnan:
> > > Fix json output buffer size for an actual data length.
> > >
> > > Fixes: 52af6ccb2b39 ("telemetry: add utility functions for creating
> > > JSON")
> > 
> > Please could you give a bit more explanations?
> > What was not working and why?
> 
> Without this patch, our driver end point (crypto/cnxk) could not successfully deliver the requested info
> due to its larger amount than the fixed buffer length of 1024 bytes as handled by __json_snprintf.
> I think it is genuine bug too which we caught up here.

So the commit log should say the JSON message was limited to 1024,
and now you allow any specified length.

> > [...]
> > > - * This function is not for use for values larger than 1k.
> > > + * This function is not for use for values larger than given buffer length.
> > >   */
> > >  __rte_format_printf(3, 4)
> > >  static inline int
> > >  __json_snprintf(char *buf, const int len, const char *format, ...)  {
> > > -	char tmp[1024];
> > > +	char tmp[len];
> > >  	va_list ap;
> > >  	int ret;




  reply	other threads:[~2021-10-07  7:22 UTC|newest]

Thread overview: 121+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-29 15:25 [dpdk-dev] [v1, 0/3] common/cnxk: enable npa telemetry Gowrishankar Muthukrishnan
2021-07-29 15:25 ` [dpdk-dev] [v1, 1/3] telemetry: enable storing pointer value Gowrishankar Muthukrishnan
2021-07-29 15:48   ` Bruce Richardson
2021-07-30 12:08     ` [dpdk-dev] [EXT] " Gowrishankar Muthukrishnan
2021-08-01 17:40       ` Gowrishankar Muthukrishnan
2021-07-29 15:25 ` [dpdk-dev] [v1, 2/3] test/telemetry: add unit tests for " Gowrishankar Muthukrishnan
2021-07-29 15:25 ` [dpdk-dev] [v1, 3/3] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-08-01 17:37 ` [dpdk-dev] [v2, 0/3] common/cnxk: enable npa telemetry Gowrishankar Muthukrishnan
2021-08-01 17:37   ` [dpdk-dev] [v2, 1/3] telemetry: enable storing pointer value Gowrishankar Muthukrishnan
2021-08-01 17:37   ` [dpdk-dev] [v2, 2/3] test/telemetry: add unit tests for " Gowrishankar Muthukrishnan
2021-08-01 17:37   ` [dpdk-dev] [v2, 3/3] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-08-03  8:05   ` [dpdk-dev] [v3, 0/3] common/cnxk: enable npa telemetry Gowrishankar Muthukrishnan
2021-08-03  8:05     ` [dpdk-dev] [v3, 1/3] telemetry: enable storing pointer value Gowrishankar Muthukrishnan
2021-08-03  8:05     ` [dpdk-dev] [v3, 2/3] test/telemetry: add unit tests for " Gowrishankar Muthukrishnan
2021-08-03  8:05     ` [dpdk-dev] [v3, 3/3] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-08-11 15:59     ` [dpdk-dev] [v3, 0/3] common/cnxk: enable npa telemetry Power, Ciara
2021-08-11 16:18       ` Gowrishankar Muthukrishnan
2021-08-24  8:53         ` Gowrishankar Muthukrishnan
2021-08-25 10:09         ` Thomas Monjalon
2021-08-25 14:38           ` [dpdk-dev] [EXT] " Gowrishankar Muthukrishnan
2021-08-26 17:15     ` [dpdk-dev] [v4, 0/2] cnxk: enable npa and mempool telemetry Gowrishankar Muthukrishnan
2021-08-26 17:15       ` [dpdk-dev] [v4, 1/2] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-08-26 18:06         ` Bruce Richardson
2021-08-27  6:43           ` [dpdk-dev] [EXT] " Gowrishankar Muthukrishnan
2021-08-26 17:15       ` [dpdk-dev] [v4, 2/2] mempool/cnxk: add telemetry end points Gowrishankar Muthukrishnan
2021-08-27  6:41       ` [dpdk-dev] [v5, 0/2] cnxk: enable npa and mempool telemetry Gowrishankar Muthukrishnan
2021-08-27  6:41         ` [dpdk-dev] [v5, 1/2] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-08-27  6:41         ` [dpdk-dev] [v5, 2/2] mempool/cnxk: add telemetry end points Gowrishankar Muthukrishnan
2021-09-04  3:25         ` [dpdk-dev] [v6, 0/4] cnxk: enable telemetry endpoints Gowrishankar Muthukrishnan
2021-09-04  3:25           ` [dpdk-dev] [v6, 1/4] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-09-04  3:25           ` [dpdk-dev] [v6, 2/4] mempool/cnxk: add telemetry end points Gowrishankar Muthukrishnan
2021-09-04  3:25           ` [dpdk-dev] [v6, 3/4] common/cnxk: add telemetry endpoints to nix Gowrishankar Muthukrishnan
2021-09-04  3:25           ` [dpdk-dev] [v6, 4/4] net/cnxk: add telemetry endpoing to ethdev Gowrishankar Muthukrishnan
2021-09-08 17:03         ` [dpdk-dev] [v7, 0/6] cnxk: enable telemetry endpoints Gowrishankar Muthukrishnan
2021-09-08 17:03           ` [dpdk-dev] [v7, 1/6] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-09-08 17:03           ` [dpdk-dev] [v7, 2/6] mempool/cnxk: add telemetry end points Gowrishankar Muthukrishnan
2021-09-08 17:03           ` [dpdk-dev] [v7, 3/6] common/cnxk: add telemetry endpoints to nix Gowrishankar Muthukrishnan
2021-09-08 17:03           ` [dpdk-dev] [v7, 4/6] net/cnxk: add telemetry endpoing to ethdev Gowrishankar Muthukrishnan
2021-09-08 17:03           ` [dpdk-dev] [v7, 5/6] telemetry: fix json output buffer size Gowrishankar Muthukrishnan
2021-09-21 11:02             ` [dpdk-dev] [v2] " Gowrishankar Muthukrishnan
2021-09-22  9:21               ` Power, Ciara
2021-09-23  5:53                 ` Gowrishankar Muthukrishnan
2021-09-30  8:47                   ` Power, Ciara
2021-09-30  9:00                     ` Gowrishankar Muthukrishnan
2021-10-07  9:04                       ` Power, Ciara
2021-09-23  6:21               ` [dpdk-dev] [v3] " Gowrishankar Muthukrishnan
2021-09-23  6:26                 ` [dpdk-dev] [v4] " Gowrishankar Muthukrishnan
2021-09-29  4:18                   ` [dpdk-dev] [v5] " Gowrishankar Muthukrishnan
2021-10-06 17:38                     ` Thomas Monjalon
2021-10-07  4:58                       ` [dpdk-dev] [EXT] " Gowrishankar Muthukrishnan
2021-10-07  7:22                         ` Thomas Monjalon [this message]
2021-10-07  8:36                           ` Gowrishankar Muthukrishnan
2021-10-11 10:54                     ` [dpdk-dev] [v6] telemetry: remove limitation on JSON output buffer length Gowrishankar Muthukrishnan
2021-10-13 11:06                       ` Power, Ciara
2021-10-13 15:25                         ` Thomas Monjalon
2021-09-08 17:03           ` [dpdk-dev] [v7, 6/6] crypto/cnxk: add telemetry endpoints to cryptodev Gowrishankar Muthukrishnan
2021-09-21 11:32             ` [dpdk-dev] [v2] " Gowrishankar Muthukrishnan
2021-09-29  6:45               ` [dpdk-dev] [v1] cryptodev: add telemetry endpoint for cryptodev info Gowrishankar Muthukrishnan
2021-10-22 12:28                 ` [dpdk-dev] [v2] cryptodev: add telemetry endpoint for cryptodev capabilities Gowrishankar Muthukrishnan
2021-10-22 12:37                   ` [dpdk-dev] [v5] crypto/cnxk: add telemetry endpoints to cryptodev Gowrishankar Muthukrishnan
2021-10-22 12:59                   ` [dpdk-dev] [v6] " Gowrishankar Muthukrishnan
2021-10-22 12:57                 ` [dpdk-dev] [v3] cryptodev: add telemetry endpoint for cryptodev capabilities Gowrishankar Muthukrishnan
2021-10-22 16:02                   ` [dpdk-dev] [v7] crypto/cnxk: add telemetry endpoints to cryptodev Gowrishankar Muthukrishnan
2021-10-26 13:44                     ` [dpdk-dev] [v8] " Gowrishankar Muthukrishnan
2021-10-26 14:10                       ` Akhil Goyal
2021-11-03  4:43                         ` Gowrishankar Muthukrishnan
2021-10-30 17:41                       ` [dpdk-dev] [v9] " Gowrishankar Muthukrishnan
2021-10-30 17:45                       ` [dpdk-dev] [v1] security: add telemetry endpoint for cryptodev security capabilities Gowrishankar Muthukrishnan
2021-10-31  5:24                         ` [dpdk-dev] [v2] " Gowrishankar Muthukrishnan
2021-11-02 14:42                         ` [dpdk-dev] [v3] " Gowrishankar Muthukrishnan
2021-11-02 14:52                           ` [dpdk-dev] [v4] " Gowrishankar Muthukrishnan
2021-11-03 19:37                             ` Akhil Goyal
2021-11-04  4:29                               ` Gowrishankar Muthukrishnan
2021-11-04  5:11                             ` [dpdk-dev] [v5] " Gowrishankar Muthukrishnan
2021-11-04 10:50                               ` Akhil Goyal
2021-10-25  7:26                   ` [dpdk-dev] [v3] cryptodev: add telemetry endpoint for cryptodev capabilities Akhil Goyal
2021-10-26 13:13                   ` [dpdk-dev] [v5] " Gowrishankar Muthukrishnan
2021-10-26 14:12                     ` Akhil Goyal
2021-10-26 15:44                       ` Gowrishankar Muthukrishnan
2021-10-26 18:34                         ` Akhil Goyal
2021-10-26 12:52                 ` [dpdk-dev] [v4] " Gowrishankar Muthukrishnan
2021-09-29  7:01               ` [dpdk-dev] [v3] crypto/cnxk: add telemetry endpoints to cryptodev Gowrishankar Muthukrishnan
2021-09-29  8:56                 ` [dpdk-dev] [v4] " Gowrishankar Muthukrishnan
2021-09-16  8:52           ` [dpdk-dev] [v7, 0/6] cnxk: enable telemetry endpoints Jerin Jacob
2021-09-21 10:52         ` [dpdk-dev] [v8, 0/4] cnxk: enable telemetry endpoints for mempool and ethdev Gowrishankar Muthukrishnan
2021-09-21 10:52           ` [dpdk-dev] [v8, 1/4] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-09-21 10:52           ` [dpdk-dev] [v8, 2/4] mempool/cnxk: add telemetry end points Gowrishankar Muthukrishnan
2021-09-29  6:40             ` [dpdk-dev] [v1] mempool: add telemetry endpoint for mempool info Gowrishankar Muthukrishnan
2021-10-13 15:21               ` Thomas Monjalon
2021-10-13 15:26                 ` Bruce Richardson
2021-10-13 15:40               ` Bruce Richardson
2021-10-22  3:28               ` [dpdk-dev] [v2] " Gowrishankar Muthukrishnan
2021-10-22  5:55                 ` David Marchand
2021-10-22 16:11               ` [dpdk-dev] [v3] " Gowrishankar Muthukrishnan
2021-10-22 20:38                 ` Thomas Monjalon
2021-09-21 10:52           ` [dpdk-dev] [v8, 3/4] common/cnxk: add telemetry endpoints to nix Gowrishankar Muthukrishnan
2021-09-21 10:52           ` [dpdk-dev] [v8, 4/4] net/cnxk: add telemetry endpoing to ethdev Gowrishankar Muthukrishnan
2021-09-21 11:27             ` Jerin Jacob
2021-09-21 11:53               ` Bruce Richardson
2021-09-21 12:16                 ` Olivier Matz
2021-09-29  4:25             ` [dpdk-dev] [v1] ethdev: add telemetry endpoint for device info Gowrishankar Muthukrishnan
2021-10-11 14:40               ` Ferruh Yigit
2021-10-11 15:40                 ` Bruce Richardson
2021-10-11 15:44                   ` Ferruh Yigit
2021-10-14 21:47               ` Ferruh Yigit
2021-09-29  6:54           ` [dpdk-dev] [v9 0/4] cnxk: enable telemetry endpoints Gowrishankar Muthukrishnan
2021-09-29  6:55             ` [dpdk-dev] [v9 1/4] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-10-14 15:22               ` [dpdk-dev] [EXT] " Harman Kalra
2021-09-29  6:55             ` [dpdk-dev] [v9 2/4] common/cnxk: add telemetry endpoints to nix Gowrishankar Muthukrishnan
2021-10-14 16:37               ` [dpdk-dev] [EXT] " Harman Kalra
2021-09-29  6:55             ` [dpdk-dev] [v9 3/4] mempool/cnxk: add telemetry endpoints mempool Gowrishankar Muthukrishnan
2021-10-14 16:43               ` [dpdk-dev] [EXT] " Harman Kalra
2021-09-29  6:55             ` [dpdk-dev] [v9 4/4] net/cnxk: add telemetry endpoints to ethdev Gowrishankar Muthukrishnan
2021-10-14 16:47               ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-19 11:27             ` [dpdk-dev] [v10 0/4] cnxk: enable telemetry endpoints Gowrishankar Muthukrishnan
2021-10-19 11:27               ` [dpdk-dev] [v10 1/4] common/cnxk: add telemetry endpoints to npa Gowrishankar Muthukrishnan
2021-10-19 11:27               ` [dpdk-dev] [v10 2/4] common/cnxk: add telemetry endpoints to nix Gowrishankar Muthukrishnan
2021-10-19 11:27               ` [dpdk-dev] [v10 3/4] mempool/cnxk: add telemetry endpoints mempool Gowrishankar Muthukrishnan
2021-10-19 11:27               ` [dpdk-dev] [v10 4/4] net/cnxk: add telemetry endpoints to ethdev Gowrishankar Muthukrishnan
2021-10-19 16:42             ` [dpdk-dev] [v9 0/4] cnxk: enable telemetry endpoints Jerin Jacob
2021-10-20 13:30               ` Ferruh Yigit

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