staging: lustre: fix min() comparison types lacks cast build warning
Recent changes to use the builtin min functions [1] introduced
type checking which wasn't present before. This resulted in
"comparision of distinct pointer types lacks a cast" build
warnings on non X86 architectures [2,3].
[1]: https://lkml.org/lkml/2014/12/25/145
[2]: https://lists.01.org/pipermail/kbuild-all/2015-January/008588.html
[3]: https://lists.01.org/pipermail/kbuild-all/2015-January/008589.html
The call to min() which resulted in this warning took the result
of kiblnd_rd_frag_size(), which returned a __u32, and the
variable 'resid', which is an int. 'resid' is inside a while
loop which is only entered if it is positive. Casting it as a
__u32 can be perormed without a loss of data or change in
functionality.
Fix the warning by casting 'resid' as a __u32.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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