Input: psmouse - do not carry DMI data around

DMI tables use considerable amount of memory. Mark them as __initconst
so they will be discarded once module is loaded.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 14 insertions, 6 deletions

diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index 54b7f64d6e62..cd81cefdc1c5 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -25,11 +25,13 @@ struct lifebook_data {
         char phys[32];
 };
 
+static bool lifebook_present;
+
 static const char *desired_serio_phys;
 
-static int lifebook_set_serio_phys(const struct dmi_system_id *d)
+static int lifebook_limit_serio3(const struct dmi_system_id *d)
 {
-        desired_serio_phys = d->driver_data;
+        desired_serio_phys = "isa0060/serio3";
         return 0;
 }
 
@@ -41,7 +43,8 @@ static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
         return 0;
 }
 
-static const struct dmi_system_id lifebook_dmi_table[] = {
+static const struct dmi_system_id __initconst lifebook_dmi_table[] = {
+#if defined(CONFIG_DMI) && defined(CONFIG_X86)
         {
                 .ident = "FLORA-ie 55mi",
                 .matches = {
@@ -83,8 +86,7 @@ static const struct dmi_system_id lifebook_dmi_table[] = {
                 .matches = {
                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
                 },
-                .callback = lifebook_set_serio_phys,
-                .driver_data = "isa0060/serio3",
+                .callback = lifebook_limit_serio3,
         },
         {
                 .ident = "Panasonic CF-28",
@@ -116,8 +118,14 @@ static const struct dmi_system_id lifebook_dmi_table[] = {
                 },
         },
         { }
+#endif
 };
 
+void __init lifebook_module_init(void)
+{
+        lifebook_present = dmi_check_system(lifebook_dmi_table);
+}
+
 static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
 {
         struct lifebook_data *priv = psmouse->private;
@@ -243,7 +251,7 @@ static void lifebook_disconnect(struct psmouse *psmouse)
 
 int lifebook_detect(struct psmouse *psmouse, bool set_properties)
 {
-        if (!dmi_check_system(lifebook_dmi_table))
+        if (!lifebook_present)
                 return -1;
 
         if (desired_serio_phys &&