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SubjectRe: [PATCH 2/8] perf symbols: Move idle syms check from top to generic function
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Hi David,

Just minor nits below..

On Mon, 18 Nov 2013 13:32:45 -0700, David Ahern wrote:
> Allows list of idle symbols to be leveraged by other commands,
> such as the upcoming timehist command.

[SNIP]
> +bool symbol__is_idle(struct symbol *sym)
> +{
> + const char * const idle_symbols[] = {

Wouldn't it better making it static? It seems to build a table
everytime otherwise.


> + "cpu_idle",
> + "intel_idle",
> + "default_idle",
> + "native_safe_halt",
> + "enter_idle",
> + "exit_idle",
> + "mwait_idle",
> + "mwait_idle_with_hints",
> + "poll_idle",
> + "ppc64_runlatch_off",
> + "pseries_dedicated_idle_sleep",
> + NULL
> + };
> +
> + int i;
> +
> + if (!sym)
> + return false;
> +
> + for (i = 0; idle_symbols[i]; i++) {

Also we can use ARRAY_SIZE() here and let the last NULL go IMHO.

Thanks,
Namhyung


> + if (!strcmp(idle_symbols[i], sym->name))
> + return true;
> + }
> +
> + return false;
> +}
> +
> static int map__process_kallsym_symbol(void *arg, const char *name,
> char type, u64 start)
> {
> diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
> index 07de8fea2f48..ad13c5d50b91 100644
> --- a/tools/perf/util/symbol.h
> +++ b/tools/perf/util/symbol.h
> @@ -240,6 +240,7 @@ size_t symbol__fprintf(struct symbol *sym, FILE *fp);
> bool symbol_type__is_a(char symbol_type, enum map_type map_type);
> bool symbol__restricted_filename(const char *filename,
> const char *restricted_filename);
> +bool symbol__is_idle(struct symbol *sym);
>
> int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
> struct symsrc *runtime_ss, symbol_filter_t filter,


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