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/video/imacfb.c b/drivers/video/imacfb.c
index 18ea4a5..6455fd2 100644
--- a/drivers/video/imacfb.c
+++ b/drivers/video/imacfb.c
@@ -58,7 +58,7 @@
static int manual_height;
static int manual_width;
-static int set_system(struct dmi_system_id *id)
+static int set_system(const struct dmi_system_id *id)
{
printk(KERN_INFO "imacfb: %s detected - set system to %ld\n",
id->ident, (long)id->driver_data);