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SubjectRe: net/core/page_pool.c:590:9: sparse: sparse: incorrect type in argument 1 (different address spaces)
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From: Kernel Test Robot <lkp@intel.com>
Date: Thu, 16 Nov 2023 03:12:24 +0800

> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: c42d9eeef8e5ba9292eda36fd8e3c11f35ee065c
> commit: ff4e538c8c3e675a15e1e49509c55951832e0451 page_pool: add a lockdep check for recycling in hardirq
> date: 3 months ago
> config: loongarch-randconfig-r133-20231107 (https://download.01.org/0day-ci/archive/20231116/202311160339.DbhaH8LX-lkp@intel.com/config)
> compiler: loongarch64-linux-gcc (GCC) 13.2.0
> reproduce: (https://download.01.org/0day-ci/archive/20231116/202311160339.DbhaH8LX-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@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202311160339.DbhaH8LX-lkp@intel.com/
>
> sparse warnings: (new ones prefixed by >>)
>>> net/core/page_pool.c:590:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got unsigned int [noderef] __percpu * @@
> net/core/page_pool.c:590:9: sparse: expected void *ptr
> net/core/page_pool.c:590:9: sparse: got unsigned int [noderef] __percpu *

Eeehhh... False-positive?

Thanks,
Olek

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