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Message-ID: <202401291436.jz59b9EZ-lkp@intel.com>
Date: Mon, 29 Jan 2024 14:37:40 +0800
From: kernel test robot <lkp@...el.com>
To: Lorenzo Bianconi <lorenzo@...nel.org>, netdev@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, lorenzo.bianconi@...hat.com,
davem@...emloft.net, kuba@...nel.org, edumazet@...gle.com,
pabeni@...hat.com, bpf@...r.kernel.org, toke@...hat.com,
willemdebruijn.kernel@...il.com, jasowang@...hat.com,
sdf@...gle.com, hawk@...nel.org, ilias.apalodimas@...aro.org
Subject: Re: [PATCH v6 net-next 1/5] net: add generic per-cpu page_pool
allocator
Hi Lorenzo,
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/Lorenzo-Bianconi/net-add-generic-per-cpu-page_pool-allocator/20240128-222506
base: net-next/main
patch link: https://lore.kernel.org/r/5b0222d3df382c22fe0fa96154ae7b27189f7ecd.1706451150.git.lorenzo%40kernel.org
patch subject: [PATCH v6 net-next 1/5] net: add generic per-cpu page_pool allocator
config: sparc-randconfig-r123-20240129 (https://download.01.org/0day-ci/archive/20240129/202401291436.jz59b9EZ-lkp@intel.com/config)
compiler: sparc-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240129/202401291436.jz59b9EZ-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/202401291436.jz59b9EZ-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> net/core/dev.c:447:1: sparse: sparse: symbol '__pcpu_scope_page_pool' was not declared. Should it be static?
net/core/dev.c:3352:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3352:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3352:23: sparse: got unsigned int
net/core/dev.c:3352:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3352:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3352:23: sparse: got unsigned int
net/core/dev.c:3352:23: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] val @@ got restricted __wsum @@
net/core/dev.c:3352:23: sparse: expected unsigned int [usertype] val
net/core/dev.c:3352:23: sparse: got restricted __wsum
net/core/dev.c:3352:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3352:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3352:23: sparse: got unsigned int
net/core/dev.c:3352:23: sparse: sparse: cast from restricted __wsum
net/core/dev.c:3352:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3352:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3352:23: sparse: got unsigned int
net/core/dev.c:3352:23: sparse: sparse: cast from restricted __wsum
net/core/dev.c:3352:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3352:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3352:23: sparse: got unsigned int
net/core/dev.c:3352:23: sparse: sparse: cast from restricted __wsum
net/core/dev.c:3352:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@
net/core/dev.c:3352:23: sparse: expected restricted __wsum [usertype] csum
net/core/dev.c:3352:23: sparse: got unsigned int
net/core/dev.c:3352:23: sparse: sparse: cast from restricted __wsum
net/core/dev.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/xarray.h, ...):
include/linux/page-flags.h:242:46: sparse: sparse: self-comparison always evaluates to false
net/core/dev.c:205:9: sparse: sparse: context imbalance in 'unlist_netdevice' - different lock contexts for basic block
net/core/dev.c:3792:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block
net/core/dev.c:5172:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block
net/core/dev.c:8833:38: sparse: sparse: self-comparison always evaluates to false
vim +/__pcpu_scope_page_pool +447 net/core/dev.c
446
> 447 DEFINE_PER_CPU_ALIGNED(struct page_pool *, page_pool);
448
--
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