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authorKyle McMartin <kyle@mcmartin.ca>2011-01-24 11:13:04 -0500
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-02-07 12:41:41 -0200
commitfb7d0b3cefb80a105f7fd26bbc62e0cbf9192822 (patch)
tree1d5ce57f5fa73c593e10a321edb02498bea834b3 /tools/perf/builtin-top.c
parenttracing/kprobes: Add bitfield type (diff)
downloadlinux-dev-fb7d0b3cefb80a105f7fd26bbc62e0cbf9192822.tar.xz
linux-dev-fb7d0b3cefb80a105f7fd26bbc62e0cbf9192822.zip
perf tool: Fix gcc 4.6.0 issues
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>
Diffstat (limited to 'tools/perf/builtin-top.c')
-rw-r--r--tools/perf/builtin-top.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 716118a3b3e4..b790673cb0aa 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -865,7 +865,7 @@ static int __cmd_top(void)
{
pthread_t thread;
struct perf_evsel *first;
- int ret;
+ int ret __used;
/*
* FIXME: perf_session__new should allow passing a O_MMAP, so that all this
* mmap reading, etc is encapsulated in it. Use O_WRONLY for now.