acer-wmi: Mark init data and code as such

Quite a lot of code and data of acer-wmi.c is only ever used during
initialization. Mark those accordingly -- and constify, where
appropriate -- so the memory can be released afterwards.

All in all those changes move ~10 kB of code and data to the .init
sections, marking them for release after initialization has finished.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>

1 files changed, 21 insertions, 20 deletions

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 0eecf9245d8c..0d18c23d669c 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -294,7 +294,7 @@ struct quirk_entry {
 
 static struct quirk_entry *quirks;
 
-static void set_quirks(void)
+static void __init set_quirks(void)
 {
         if (!interface)
                 return;
@@ -306,7 +306,7 @@ static void set_quirks(void)
                 interface->capability |= ACER_CAP_BRIGHTNESS;
 }
 
-static int dmi_matched(const struct dmi_system_id *dmi)
+static int __init dmi_matched(const struct dmi_system_id *dmi)
 {
         quirks = dmi->driver_data;
         return 1;
@@ -337,7 +337,7 @@ static struct quirk_entry quirk_lenovo_ideapad_s205 = {
 };
 
 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
-static struct dmi_system_id acer_blacklist[] = {
+static const struct dmi_system_id acer_blacklist[] __initconst = {
         {
                 .ident = "Acer Aspire One (SSD)",
                 .matches = {
@@ -355,7 +355,7 @@ static struct dmi_system_id acer_blacklist[] = {
         {}
 };
 
-static struct dmi_system_id acer_quirks[] = {
+static const struct dmi_system_id acer_quirks[] __initconst = {
         {
                 .callback = dmi_matched,
                 .ident = "Acer Aspire 1360",
@@ -530,14 +530,15 @@ static struct dmi_system_id acer_quirks[] = {
         {}
 };
 
-static int video_set_backlight_video_vendor(const struct dmi_system_id *d)
+static int __init
+video_set_backlight_video_vendor(const struct dmi_system_id *d)
 {
         interface->capability &= ~ACER_CAP_BRIGHTNESS;
         pr_info("Brightness must be controlled by generic video driver\n");
         return 0;
 }
 
-static const struct dmi_system_id video_vendor_dmi_table[] = {
+static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
         {
                 .callback = video_set_backlight_video_vendor,
                 .ident = "Acer TravelMate 4750",
@@ -582,7 +583,7 @@ static const struct dmi_system_id video_vendor_dmi_table[] = {
 };
 
 /* Find which quirks are needed for a particular vendor/ model pair */
-static void find_quirks(void)
+static void __init find_quirks(void)
 {
         if (!force_series) {
                 dmi_check_system(acer_quirks);
@@ -749,7 +750,7 @@ static acpi_status AMW0_set_u32(u32 value, u32 cap)
         return wmab_execute(&args, NULL);
 }
 
-static acpi_status AMW0_find_mailled(void)
+static acpi_status __init AMW0_find_mailled(void)
 {
         struct wmab_args args;
         struct wmab_ret ret;
@@ -781,16 +782,16 @@ static acpi_status AMW0_find_mailled(void)
         return AE_OK;
 }
 
-static int AMW0_set_cap_acpi_check_device_found;
+static int AMW0_set_cap_acpi_check_device_found __initdata;
 
-static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
+static acpi_status __init AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
         u32 level, void *context, void **retval)
 {
         AMW0_set_cap_acpi_check_device_found = 1;
         return AE_OK;
 }
 
-static const struct acpi_device_id norfkill_ids[] = {
+static const struct acpi_device_id norfkill_ids[] __initconst = {
         { "VPC2004", 0},
         { "IBM0068", 0},
         { "LEN0068", 0},
@@ -798,7 +799,7 @@ static const struct acpi_device_id norfkill_ids[] = {
         { "", 0},
 };
 
-static int AMW0_set_cap_acpi_check_device(void)
+static int __init AMW0_set_cap_acpi_check_device(void)
 {
         const struct acpi_device_id *id;
 
@@ -808,7 +809,7 @@ static int AMW0_set_cap_acpi_check_device(void)
         return AMW0_set_cap_acpi_check_device_found;
 }
 
-static acpi_status AMW0_set_capabilities(void)
+static acpi_status __init AMW0_set_capabilities(void)
 {
         struct wmab_args args;
         struct wmab_ret ret;
@@ -1184,7 +1185,7 @@ static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
         return wmid3_set_device_status(value, device);
 }
 
-static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
+static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
 {
         struct hotkey_function_type_aa *type_aa;
 
@@ -1209,7 +1210,7 @@ static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
         commun_fn_key_number = type_aa->commun_fn_key_number;
 }
 
-static acpi_status WMID_set_capabilities(void)
+static acpi_status __init WMID_set_capabilities(void)
 {
         struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
         union acpi_object *obj;
@@ -1777,7 +1778,7 @@ static void acer_wmi_notify(u32 value, void *context)
         }
 }
 
-static acpi_status
+static acpi_status __init
 wmid3_set_lm_mode(struct lm_input_params *params,
                   struct lm_return_value *return_value)
 {
@@ -1811,7 +1812,7 @@ wmid3_set_lm_mode(struct lm_input_params *params,
         return status;
 }
 
-static int acer_wmi_enable_ec_raw(void)
+static int __init acer_wmi_enable_ec_raw(void)
 {
         struct lm_return_value return_value;
         acpi_status status;
@@ -1834,7 +1835,7 @@ static int acer_wmi_enable_ec_raw(void)
         return status;
 }
 
-static int acer_wmi_enable_lm(void)
+static int __init acer_wmi_enable_lm(void)
 {
         struct lm_return_value return_value;
         acpi_status status;
@@ -2125,7 +2126,7 @@ static int remove_sysfs(struct platform_device *device)
         return 0;
 }
 
-static int create_sysfs(void)
+static int __init create_sysfs(void)
 {
         int retval = -ENOMEM;
 
@@ -2154,7 +2155,7 @@ static void remove_debugfs(void)
         debugfs_remove(interface->debug.root);
 }
 
-static int create_debugfs(void)
+static int __init create_debugfs(void)
 {
         interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
         if (!interface->debug.root) {