[PATCH 2/8] ACPICA: acpiexec: Add testability of deferred table verification

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxx>
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
---
 drivers/acpi/acpica/tbxface.c | 9 ++++++---
 1 file 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);
 	}
 
-- 
2.7.4

--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux