netdev - Re: [PATCH v4 bpf] xsk: fix immature cq descriptor production

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Message-ID: <202508180712.ZeSSNfkM-lkp@intel.com>
Date: Mon, 18 Aug 2025 06:05:28 +0800
From: kernel test robot <lkp@...el.com>
To: Maciej Fijalkowski <maciej.fijalkowski@...el.com>, bpf@...r.kernel.org,
	ast@...nel.org, daniel@...earbox.net, andrii@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org,
	magnus.karlsson@...el.com, stfomichev@...il.com,
	aleksander.lobakin@...el.com,
	Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
	Eryk Kubanski <e.kubanski@...tner.samsung.com>
Subject: Re: [PATCH v4 bpf] xsk: fix immature cq descriptor production

Hi Maciej,

kernel test robot noticed the following build warnings:

[auto build test WARNING on bpf/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Maciej-Fijalkowski/xsk-fix-immature-cq-descriptor-production/20250814-012129
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git master
patch link:    https://lore.kernel.org/r/20250813171210.2205259-1-maciej.fijalkowski%40intel.com
patch subject: [PATCH v4 bpf] xsk: fix immature cq descriptor production
config: x86_64-randconfig-121-20250817 (https://download.01.org/0day-ci/archive/20250818/202508180712.ZeSSNfkM-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250818/202508180712.ZeSSNfkM-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/202508180712.ZeSSNfkM-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> net/xdp/xsk.c:49:1: sparse: sparse: symbol '__pcpu_scope_system_xsk_generic_cache' was not declared. Should it be static?

vim +/__pcpu_scope_system_xsk_generic_cache +49 net/xdp/xsk.c

    48	
  > 49	DEFINE_PER_CPU(struct xsk_generic_cache, system_xsk_generic_cache);
    50	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki