netdev - Re: [alobakin:iavf-pp-frag 11/28] net/core/page_pool.c:582:9: sparse: sparse: incorrect type in argument 1 (different address spaces)

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Date: Tue, 1 Aug 2023 15:46:22 +0200
From: Alexander Lobakin <aleksander.lobakin@...el.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: kernel test robot <lkp@...el.com>, <oe-kbuild-all@...ts.linux.dev>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [alobakin:iavf-pp-frag 11/28] net/core/page_pool.c:582:9: sparse:
 sparse: incorrect type in argument 1 (different address spaces)

From: Kernel Test Robot <lkp@...el.com>
Date: Sat, 29 Jul 2023 20:30:10 +0800

> tree:   https://github.com/alobakin/linux iavf-pp-frag
> head:   0eccfd667ed84b425dc0c48eab06b0cb1d5fd8c4
> commit: 67f0169041f76c28d399c2a63947e33a1ae1210d [11/28] page_pool: add a lockdep check for recycling in hardirq
> config: loongarch-randconfig-r072-20230728 (https://download.01.org/0day-ci/archive/20230729/202307292029.cFz0s8Hh-lkp@intel.com/config)
> compiler: loongarch64-linux-gcc (GCC) 12.3.0
> reproduce: (https://download.01.org/0day-ci/archive/20230729/202307292029.cFz0s8Hh-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/202307292029.cFz0s8Hh-lkp@intel.com/

Jakub, could you take a look, is this warning reasonable?

> 
> sparse warnings: (new ones prefixed by >>)
>>> net/core/page_pool.c:582:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
>    net/core/page_pool.c:582:9: sparse:     expected void *ptr
>    net/core/page_pool.c:582:9: sparse:     got unsigned int [noderef] __percpu *
>>> net/core/page_pool.c:582:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
>    net/core/page_pool.c:582:9: sparse:     expected void *ptr
>    net/core/page_pool.c:582:9: sparse:     got unsigned int [noderef] __percpu *
>>> net/core/page_pool.c:582:9: sparse: sparse: incorrect type in argument 1 (different address

[...]

Thanks,
Olek