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perf tool: Fix gcc 4.6.0 issues

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GCC 4.6.0 in Fedora rawhide turned up some compile errors in tools/perf
due to the -Werror=unused-but-set-variable flag.

I've gone through and annotated some of the assignments that had side
effects (ie: return value from a function) with the __used annotation,
and in some cases, just removed unused code.

In a few cases, we were assigning something useful, but not using it in
later parts of the function.

kyle@dreadnought:~/src% gcc --version
gcc (GCC) 4.6.0 20110122 (Red Hat 4.6.0-0.3)

Cc: Ingo Molnar <mingo@redhat.com>
LKML-Reference: <20110124161304.GK27353@bombadil.infradead.org>
Signed-off-by: Kyle McMartin <kyle@redhat.com>
[ committer note: Fixed up the annotation fixes, as that code moved recently ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kyle McMartin
2011-01-24 11:13:04 -05:00
committed by Arnaldo Carvalho de Melo
parent 1ff511e35e
commit fb7d0b3cef
9 changed files with 11 additions and 21 deletions
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2
tools/perf/util/ui/browsers/map.c
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@ -41,7 +41,7 @@ static int ui_entry__read(const char *title, char *bf, size_t size, int width)
out_free_form:
newtPopWindow();
newtFormDestroy(form);
return 0;
return err;
}
struct map_browser {