patches for DPDK stable branches
 help / color / mirror / Atom feed
From: Ferruh Yigit <ferruh.yigit@intel.com>
To: "De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, "stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-stable] [PATCH] kni: fix build with gcc 8.1
Date: Wed, 20 Jun 2018 17:40:47 +0100	[thread overview]
Message-ID: <0ec031ef-9244-bdef-0c08-04668b98c384@intel.com> (raw)
In-Reply-To: <E115CCD9D858EF4F90C690B0DCB4D8977F8D8C3B@IRSMSX108.ger.corp.intel.com>

On 6/20/2018 10:01 AM, De Lara Guarch, Pablo wrote:
> 
> 
>> -----Original Message-----
>> From: stable [mailto:stable-bounces@dpdk.org] On Behalf Of Ferruh Yigit
>> Sent: Tuesday, June 19, 2018 1:09 PM
>> To: Yigit, Ferruh <ferruh.yigit@intel.com>
>> Cc: dev@dpdk.org; stable@dpdk.org
>> Subject: [dpdk-stable] [PATCH] kni: fix build with gcc 8.1
>>
>> Error observed when CONFIG_RTE_KNI_KMOD_ETHTOOL config option is
>> enabled.
>>
>> build error:
>> In function ‘strncpy’,
>>     inlined from ‘igb_get_drvinfo’ at
>>     .../dpdk/build/build/kernel/linux/kni/igb_ethtool.c:814:2:
>>     .../include/linux/string.h:246:9: error: ‘__builtin_strncpy’ output
>>     may be truncated copying 31 bytes from a string of length 42
>>     [-Werror=stringop-truncation]
>>       return __builtin_strncpy(p, q, size);
>>                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> Fixed by reducing the adapter->fw_version size and adjusting strncpy limit size.
>>
>> Cc: stable@dpdk.org
>>
> 
> Fixes line?

I will add.

>  
>> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
> 
> ...
> 
>> --- a/kernel/linux/kni/ethtool/igb/igb_ethtool.c
>> +++ b/kernel/linux/kni/ethtool/igb/igb_ethtool.c
>> @@ -812,7 +812,7 @@ static void igb_get_drvinfo(struct net_device *netdev,
>>  	strncpy(drvinfo->version, igb_driver_version, sizeof(drvinfo->version) -
>> 1);
>>
>>  	strncpy(drvinfo->fw_version, adapter->fw_version,
>> -		sizeof(drvinfo->fw_version) - 1);
>> +		sizeof(drvinfo->fw_version));
>>  	strncpy(drvinfo->bus_info, pci_name(adapter->pdev), sizeof(drvinfo-
>>> bus_info) -1);
> 
> This patch fixes the compilation issue, but should we use strlcpy instead of strncpy?
> 
> Thanks,
> Pablo
> 

  reply	other threads:[~2018-06-20 16:40 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-19 12:08 Ferruh Yigit
2018-06-19 23:35 ` [dpdk-stable] [dpdk-dev] " Stephen Hemminger
2018-06-20 16:39   ` Ferruh Yigit
2018-06-20 17:04     ` Ferruh Yigit
2018-06-20  9:01 ` [dpdk-stable] " De Lara Guarch, Pablo
2018-06-20 16:40   ` Ferruh Yigit [this message]
2018-06-26  9:02 ` [dpdk-stable] [PATCH v2] " Ferruh Yigit
2018-06-26  9:54   ` Thomas Monjalon
2018-06-26 11:38   ` [dpdk-stable] [PATCH v3] " Ferruh Yigit
2018-06-26 13:43     ` De Lara Guarch, Pablo
2018-06-27 13:15       ` 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=0ec031ef-9244-bdef-0c08-04668b98c384@intel.com \
    --to=ferruh.yigit@intel.com \
    --cc=dev@dpdk.org \
    --cc=pablo.de.lara.guarch@intel.com \
    --cc=stable@dpdk.org \
    /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).