perf tools: Update copy of libbpf's hashmap.c
To pick the changes in: 7a078d2d ("libbpf, hashmap: Fix undefined behavior in hash_bits") That don't entail any changes in tools/perf. This addresses this perf build warning: Warning: Kernel ABI header at 'tools/perf/util/hashmap.h' differs from latest version at 'tools/lib/bpf/hashmap.h' diff -u tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h Not a kernel ABI, its just that this uses the mechanism in place for checking kernel ABI files drift. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by:Arnaldo Carvalho de Melo <acme@redhat.com>
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