Messages in this thread Patch in this message | | | Date | Thu, 27 Sep 2012 18:45:27 -0700 | From | tip-bot for Thomas Renninger <> | Subject | [tip:x86/acpi] ACPI: Create acpi_table_taint() function to avoid code duplication |
| |
Commit-ID: 1fab0ef6149d6a036137ef5fa4d4ad18cb117227 Gitweb: http://git.kernel.org/tip/1fab0ef6149d6a036137ef5fa4d4ad18cb117227 Author: Thomas Renninger <trenn@suse.de> AuthorDate: Wed, 26 Sep 2012 14:19:00 +0200 Committer: H. Peter Anvin <hpa@linux.intel.com> CommitDate: Thu, 27 Sep 2012 15:01:36 -0700
ACPI: Create acpi_table_taint() function to avoid code duplication
There are two ways of overriding ACPI tables now, both need to taint the the kernel.
Signed-off-by: Thomas Renninger <trenn@suse.de> Link: http://lkml.kernel.org/r/1348661941-71287-6-git-send-email-trenn@suse.de Cc: Len Brown <lenb@kernel.org> Cc: Robert Moore <robert.moore@intel.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> --- drivers/acpi/osl.c | 20 +++++++++++++------- 1 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 007224b..a2845ff 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -656,6 +656,15 @@ void __init acpi_initrd_override(void *data, size_t size) } #endif /* CONFIG_ACPI_INITRD_TABLE_OVERRIDE */ +static void acpi_table_taint(struct acpi_table_header *table) +{ + pr_warn(PREFIX + "Override [%4.4s-%8.8s], this is unsafe: tainting kernel\n", + table->signature, table->oem_table_id); + add_taint(TAINT_OVERRIDDEN_ACPI_TABLE); +} + + acpi_status acpi_os_table_override(struct acpi_table_header * existing_table, struct acpi_table_header ** new_table) @@ -669,13 +678,8 @@ acpi_os_table_override(struct acpi_table_header * existing_table, if (strncmp(existing_table->signature, "DSDT", 4) == 0) *new_table = (struct acpi_table_header *)AmlCode; #endif - if (*new_table != NULL) { - printk(KERN_WARNING PREFIX "Override [%4.4s-%8.8s], " - "this is unsafe: tainting kernel\n", - existing_table->signature, - existing_table->oem_table_id); - add_taint(TAINT_OVERRIDDEN_ACPI_TABLE); - } + if (*new_table != NULL) + acpi_table_taint(existing_table); return AE_OK; } @@ -736,6 +740,8 @@ acpi_os_physical_table_override(struct acpi_table_header *existing_table, break; } while (table_offset + ACPI_HEADER_SIZE < all_tables_size); + if (*address != 0) + acpi_table_taint(existing_table); return AE_OK; #endif }
| |