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selftests/net: tcp_mmap: fix clang warning for target arch PowerPC
When size_t maps to unsigned int (e.g. on 32-bit powerpc), then the
comparison with 1<<35 is always true. Clang 9 threw:
warning: result of comparison of constant 34359738368 with \
expression of type 'size_t' (aka 'unsigned int') is always true \
[-Wtautological-constant-out-of-range-compare]
while (total < FILE_SZ) {
Tested: make -C tools/testing/selftests TARGETS="net" run_tests
Fixes: 192dc40 ("selftests: net: add tcp_mmap program")
Signed-off-by: Tanner Love <[email protected]>
Acked-by: Willem de Bruijn <[email protected]>
Reviewed-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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