diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2021-11-18 13:13:16 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-11-18 13:13:16 -0800 |
| commit | 50fc24944a2a0ef5aab571dcac17f6c5f2613f56 (patch) | |
| tree | 32477b48cc10073e948eb7b85877dc5a0746749d /kernel/trace | |
| parent | bb8cecf8ba127abca8ccd102207a59c55fdae515 (diff) | |
| parent | 8d0112ac6fd001f95aabb084ec2ccaa3637bc344 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/bpf_trace.c | 2 | ||||
| -rw-r--r-- | kernel/trace/trace_events_hist.c | 17 | ||||
| -rw-r--r-- | kernel/trace/trace_osnoise.c | 3 |
3 files changed, 14 insertions, 8 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 25ea521fb8f1..1cd647c010da 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -1111,8 +1111,6 @@ bpf_tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) return &bpf_ktime_get_ns_proto; case BPF_FUNC_ktime_get_boot_ns: return &bpf_ktime_get_boot_ns_proto; - case BPF_FUNC_ktime_get_coarse_ns: - return &bpf_ktime_get_coarse_ns_proto; case BPF_FUNC_tail_call: return &bpf_tail_call_proto; case BPF_FUNC_get_current_pid_tgid: diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 0abc9a413b4d..5ea2c9ec54a6 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -1953,9 +1953,10 @@ static struct hist_field *create_hist_field(struct hist_trigger_data *hist_data, if (!hist_field->type) goto free; - if (field->filter_type == FILTER_STATIC_STRING) + if (field->filter_type == FILTER_STATIC_STRING) { hist_field->fn = hist_field_string; - else if (field->filter_type == FILTER_DYN_STRING) + hist_field->size = field->size; + } else if (field->filter_type == FILTER_DYN_STRING) hist_field->fn = hist_field_dynstring; else hist_field->fn = hist_field_pstring; @@ -2580,7 +2581,8 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data, operand1_str = str; str = sep+1; - if (!operand1_str || !str) + /* Binary operator requires both operands */ + if (*operand1_str == '\0' || *str == '\0') goto free; operand_flags = 0; @@ -3024,8 +3026,10 @@ static inline void __update_field_vars(struct tracing_map_elt *elt, if (val->flags & HIST_FIELD_FL_STRING) { char *str = elt_data->field_var_str[j++]; char *val_str = (char *)(uintptr_t)var_val; + unsigned int size; - strscpy(str, val_str, STR_VAR_LEN_MAX); + size = min(val->size, STR_VAR_LEN_MAX); + strscpy(str, val_str, size); var_val = (u64)(uintptr_t)str; } tracing_map_set_var(elt, var_idx, var_val); @@ -4912,6 +4916,7 @@ static void hist_trigger_elt_update(struct hist_trigger_data *hist_data, if (hist_field->flags & HIST_FIELD_FL_STRING) { unsigned int str_start, var_str_idx, idx; char *str, *val_str; + unsigned int size; str_start = hist_data->n_field_var_str + hist_data->n_save_var_str; @@ -4920,7 +4925,9 @@ static void hist_trigger_elt_update(struct hist_trigger_data *hist_data, str = elt_data->field_var_str[idx]; val_str = (char *)(uintptr_t)hist_val; - strscpy(str, val_str, STR_VAR_LEN_MAX); + + size = min(hist_field->size, STR_VAR_LEN_MAX); + strscpy(str, val_str, size); hist_val = (u64)(uintptr_t)str; } diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c index 3e4a1651e329..7520d43aed55 100644 --- a/kernel/trace/trace_osnoise.c +++ b/kernel/trace/trace_osnoise.c @@ -55,7 +55,8 @@ struct osnoise_instance { struct list_head list; struct trace_array *tr; }; -struct list_head osnoise_instances; + +static struct list_head osnoise_instances; static bool osnoise_has_registered_instances(void) { |