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Date:   Sun, 19 Jun 2022 16:48:54 +0100
From:   Al Viro <viro@zeniv.linux.org.uk>
To:     kernel test robot <lkp@intel.com>
Cc:     kbuild-all@lists.01.org, linux-fsdevel@vger.kernel.org
Subject: Re: [viro-vfs:work.iov_iter_get_pages 24/33] lib/iov_iter.c:1295
 iter_xarray_get_pages() warn: unsigned 'count' is never less than zero.
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References: <202206192306.POJg04ej-lkp@intel.com>
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On Sun, Jun 19, 2022 at 11:40:37PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.iov_iter_get_pages
> head:   fe8e2809c7db0ec65403b31b50906f3f481a9b10
> commit: e64d637d648390e4ac0643747ae174c3be15f243 [24/33] iov_iter: saner helper for page array allocation
> config: mips-randconfig-m031-20220619 (https://download.01.org/0day-ci/archive/20220619/202206192306.POJg04ej-lkp@intel.com/config)
> compiler: mips-linux-gcc (GCC) 11.3.0
> 
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
> 
> smatch warnings:
> lib/iov_iter.c:1295 iter_xarray_get_pages() warn: unsigned 'count' is never less than zero.

Joy...  Should've been int all along, obviously (pgoff_t for number of array
elements?)