[PATCH V8 08/10] ras: acpi / apei: generate trace event for unrecognized CPER section
From: rostedt@goodmis.org (Steven Rostedt)
Date: 2017-02-15 15:52:45
Also in:
kvm, kvmarm, linux-acpi, linux-efi, lkml
On Wed, 1 Feb 2017 10:16:51 -0700 Tyler Baicar [off-list ref] wrote:
quoted hunk ↗ jump to hunk
@@ -452,11 +454,21 @@ static void ghes_do_proc(struct ghes *ghes, { int sev, sec_sev; struct acpi_hest_generic_data *gdata; + uuid_le sec_type; + uuid_le *fru_id = &NULL_UUID_LE; + char *fru_text = ""; sev = ghes_severity(estatus->error_severity); apei_estatus_for_each_section(estatus, gdata) { sec_sev = ghes_severity(gdata->error_severity); - if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, + sec_type = *(uuid_le *)gdata->section_type; + + if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID) + fru_id = (uuid_le *)gdata->fru_id; + if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT) + fru_text = gdata->fru_text; + + if (!uuid_le_cmp(sec_type, CPER_SEC_PLATFORM_MEM)) { struct cper_sec_mem_err *mem_err;@@ -467,7 +479,7 @@ static void ghes_do_proc(struct ghes *ghes, ghes_handle_memory_failure(gdata, sev); } #ifdef CONFIG_ACPI_APEI_PCIEAER - else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, + else if (!uuid_le_cmp(sec_type, CPER_SEC_PCIE)) { struct cper_sec_pcie *pcie_err;@@ -500,6 +512,12 @@ static void ghes_do_proc(struct ghes *ghes, } #endif + else {
As an optimization, you can add:
else if (trace_unknown_sec_event_enabled()) {
instead, as then this wont be called unless the tracepoint is
activated. Will keep the logic from doing anything with
acpi_hest_generic_data_payload().
Note, that trace_*_enabled() is activated via a jump_label, thus
there's no branches involved.
-- Steve
+ void *unknown_err = acpi_hest_generic_data_payload(gdata); + trace_unknown_sec_event(&sec_type, + fru_id, fru_text, sec_sev, + unknown_err, gdata->error_data_length); + } } }