From: Li Zefan This should be a bug: # cat format name: foo_bar ID: 71 format: ... field:int bar; offset:24; size:4; # echo 'bar < 0' > filter # echo 'bar < -1' > filter bash: echo: write error: Invalid argument [ Impact: fix to allow negative operand in filer expr ] Acked-by: Frederic Weisbecker Signed-off-by: Li Zefan LKML-Reference: <4A35B8DF.60400@cn.fujitsu.com> Signed-off-by: Steven Rostedt --- kernel/trace/trace_events_filter.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index db6e54b..1d81923 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -546,6 +546,7 @@ static int filter_add_pred(struct filter_parse_state *ps, filter_pred_fn_t fn; unsigned long long val; int string_type; + int ret; pred->fn = filter_pred_none; @@ -581,7 +582,11 @@ static int filter_add_pred(struct filter_parse_state *ps, pred->not = 1; return filter_add_pred_fn(ps, call, pred, fn); } else { - if (strict_strtoull(pred->str_val, 0, &val)) { + if (field->is_signed) + ret = strict_strtoll(pred->str_val, 0, &val); + else + ret = strict_strtoull(pred->str_val, 0, &val); + if (ret) { parse_error(ps, FILT_ERR_ILLEGAL_INTVAL, 0); return -EINVAL; } -- 1.6.3.1 -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/