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3ef1e65c82
If the long_name of a 'struct option' is defined as NULL, --list-opts will incorrectly print '--(null)' in its output. As a result, '--(null)' will finally appear in the case of bash completion, e.g. 'perf record --'. Example: Before this patch: $ perf record --list-opts --event --filter --pid --tid --realtime --no-buffering --raw-samples --all-cpus --cpu --count --output --no-inherit --freq --mmap-pages --group --(null) --call-graph --verbose --quiet --stat --data --timestamp --period --no-samples --no-buildid-cache --no-buildid --cgroup --delay --uid --branch-any --branch-filter --weight --transaction --per-thread --intr-regs After this patch: $ perf record --list-opts --event --filter --pid --tid --realtime --no-buffering --raw-samples --all-cpus --cpu --count --output --no-inherit --freq --mmap-pages --group --call-graph --verbose --quiet --stat --data --timestamp --period --no-samples --no-buildid-cache --no-buildid --cgroup --delay --uid --branch-any --branch-filter --weight --transaction --per-thread --intr-regs Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1425032491-20224-7-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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