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authorLv Zheng <lv.zheng@intel.com>2017-09-20 10:00:20 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-10-04 01:43:05 +0200
commit979fba9452b8111a83f555becea0a63c377e4e73 (patch)
tree52c2b007315b6e0219b0d2c107c8c1251312233d
parent8381c54fc0b40e727086a7f61399ae3e09ca7a95 (diff)
downloadlinux-979fba9452b8111a83f555becea0a63c377e4e73.tar.gz
ACPICA: acpiexec: Add testability of deferred table verification
ACPICA commit 04c28c7549e694ea85f40bcc816039e5fbb4169c This patch adds testability of deferred table verification mechanism. As acpiexec uses dynamically allocated root table list from its very early stage, a change to acpi_reallocate_root_table() is required to allow deferred table verification mechanism to be triggered in such an environment. Note that acpi_gbl_enable_table_validation is still TRUE by default, thus: 1. Developers need to manually set acpi_gbl_enable_table_validation to FALSE for acpiexec to enable this test. 2. For all other OSPMs (Linux, BSDs, etc.), this commit is a no-op. Link: https://github.com/acpica/acpica/commit/04c28c7549e6 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/acpi/acpica/tbxface.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 26ad596..5ecb8d2 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -173,10 +173,13 @@ acpi_status ACPI_INIT_FUNCTION acpi_reallocate_root_table(void)
ACPI_FUNCTION_TRACE(acpi_reallocate_root_table);
/*
- * Only reallocate the root table if the host provided a static buffer
- * for the table array in the call to acpi_initialize_tables.
+ * If there are tables unverified, it is required to reallocate the
+ * root table list to clean up invalid table entries. Otherwise only
+ * reallocate the root table list if the host provided a static buffer
+ * for the table array in the call to acpi_initialize_tables().
*/
- if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+ if ((acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) &&
+ acpi_gbl_enable_table_validation) {
return_ACPI_STATUS(AE_SUPPORT);
}