drivers/firmware: const-ify DMI API and internals
Three main sets of changes:
1) dmi_get_system_info() return value should have been marked const,
since callers should not be changing that data.
2) const-ify DMI internals, since DMI firmware tables should,
whenever possible, be marked const to ensure we never ever write to
that data area.
3) const-ify DMI API, to enable marking tables const where possible
in low-level drivers.
And if we're really lucky, this might enable some additional
optimizations on the part of the compiler.
The bulk of the changes are #2 and #3, which are interrelated. #1 could
have been a separate patch, but it was so small compared to the others,
it was easier to roll it into this changeset.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 12c09fa..352cf81 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1214,7 +1214,7 @@
}
#ifdef CONFIG_DMI
-static int dmi_osi_linux(struct dmi_system_id *d)
+static int dmi_osi_linux(const struct dmi_system_id *d)
{
printk(KERN_NOTICE "%s detected: enabling _OSI(Linux)\n", d->ident);
enable_osi_linux(1);
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f182613..1e8287b 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -92,7 +92,7 @@
*
* To skip this limit, boot/load with a large max_cstate limit.
*/
-static int set_max_cstate(struct dmi_system_id *id)
+static int set_max_cstate(const struct dmi_system_id *id)
{
if (max_cstate > ACPI_PROCESSOR_MAX_POWER)
return 0;
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 2cbb9aa..5055acf 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -215,7 +215,7 @@
* Toshiba fails to preserve interrupts over S1, reinitialization
* of 8259 is needed after S1 resume.
*/
-static int __init init_ints_after_s1(struct dmi_system_id *d)
+static int __init init_ints_after_s1(const struct dmi_system_id *d)
{
printk(KERN_WARNING "%s with broken S1 detected.\n", d->ident);
init_8259A_after_S1 = 1;
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index bc6d586..ad898e1 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1360,7 +1360,7 @@
}
#ifdef CONFIG_DMI
-static int thermal_act(struct dmi_system_id *d) {
+static int thermal_act(const struct dmi_system_id *d) {
if (act == 0) {
printk(KERN_NOTICE "ACPI: %s detected: "
@@ -1369,14 +1369,14 @@
}
return 0;
}
-static int thermal_nocrt(struct dmi_system_id *d) {
+static int thermal_nocrt(const struct dmi_system_id *d) {
printk(KERN_NOTICE "ACPI: %s detected: "
"disabling all critical thermal trip point actions.\n", d->ident);
nocrt = 1;
return 0;
}
-static int thermal_tzp(struct dmi_system_id *d) {
+static int thermal_tzp(const struct dmi_system_id *d) {
if (tzp == 0) {
printk(KERN_NOTICE "ACPI: %s detected: "
@@ -1385,7 +1385,7 @@
}
return 0;
}
-static int thermal_psv(struct dmi_system_id *d) {
+static int thermal_psv(const struct dmi_system_id *d) {
if (psv == 0) {
printk(KERN_NOTICE "ACPI: %s detected: "
