Re: [PATCH] perftools: Fix build error

[Ingo Molnar <mingo@elte.hu>]

* Denis Kirjanov <dkirjanov@kernel.org> wrote:

> Fix perftools build error (ppc64 box) with PERF_VERSION = 2.6.38.rc1.47.g12fcdb
> CC builtin-top.o
> cc1: warnings being treated as errors
> builtin-top.c: In function 'print_sym_table':
> builtin-top.c:540: error: format '%Ld' expects type 'long long int', but argument 2 has type '__u64'
> 
> Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
> ---
>  tools/perf/builtin-top.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index 05344c6..8202a2e 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -537,7 +537,7 @@ static void print_sym_table(void)
>  	if (nr_counters == 1 || !display_weighted) {
>  		struct perf_evsel *first;
>  		first = list_entry(evsel_list.next, struct perf_evsel, node);
> -		printf("%Ld", first->attr.sample_period);
> +		printf("%Ld", (unsigned long long)first->attr.sample_period);

Wouldnt %Lu solve this in a cleaner way?

Thanks,

	Ingo