netdev - Re: [PATCH v4 net-next 09/12] testing: net-drv: add basic shaper test

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <3b1ca110-d1e7-47c5-af31-360a233cb4aa@redhat.com>
Date: Thu, 22 Aug 2024 09:53:22 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: kernel test robot <lkp@...el.com>, netdev@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Jakub Kicinski <kuba@...nel.org>,
 Jiri Pirko <jiri@...nulli.us>, Madhu Chittim <madhu.chittim@...el.com>,
 Sridhar Samudrala <sridhar.samudrala@...el.com>,
 Simon Horman <horms@...nel.org>, John Fastabend <john.fastabend@...il.com>,
 Sunil Kovvuri Goutham <sgoutham@...vell.com>,
 Jamal Hadi Salim <jhs@...atatu.com>, Donald Hunter <donald.hunter@...il.com>
Subject: Re: [PATCH v4 net-next 09/12] testing: net-drv: add basic shaper test



On 8/21/24 18:52, kernel test robot wrote:
> Hi Paolo,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on net-next/main]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Paolo-Abeni/tools-ynl-lift-an-assumption-about-spec-file-name/20240820-231626
> base:   net-next/main
> patch link:    https://lore.kernel.org/r/4cf74f285fa5f07be546cb83ef96775f86aa0dbf.1724165948.git.pabeni%40redhat.com
> patch subject: [PATCH v4 net-next 09/12] testing: net-drv: add basic shaper test
> config: hexagon-randconfig-r112-20240821 (https://download.01.org/0day-ci/archive/20240822/202408220027.kA3pRF6J-lkp@intel.com/config)
> compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6)
> reproduce: (https://download.01.org/0day-ci/archive/20240822/202408220027.kA3pRF6J-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202408220027.kA3pRF6J-lkp@intel.com/
> 
> sparse warnings: (new ones prefixed by >>)
>>> net/shaper/shaper.c:227:24: sparse: sparse: Using plain integer as NULL pointer

AFAICS this warning comes directly from/is due to the hexgon cmpxchg 
implementation:

#define arch_cmpxchg(ptr, old, new)                             \
({                                                              \
         __typeof__(ptr) __ptr = (ptr);                          \
         __typeof__(*(ptr)) __old = (old);                       \
         __typeof__(*(ptr)) __new = (new);                       \
         __typeof__(*(ptr)) __oldval = 0;                        \
				^^^^^^^ here.

Cheers,

Paolo