acer-wmi: schedule threeg and interface sysfs for feature removal

we can now autodetect internal 3G device and already have the threeg
rfkill device. So, we plan to remove threeg sysfs support for it's no
longer necessary.

We also plan to remove interface sysfs file that exposed which ACPI-WMI
interface that was used by acer-wmi driver. It will replaced by information
log when acer-wmi initial.

We keep it around for userspace compatibility reasons, schedule removal
in 2012.

Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index e1c4938b301b..089db868799e 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -1400,6 +1400,9 @@ static ssize_t show_bool_threeg(struct device *dev,
 {
         u32 result; \
         acpi_status status;
+
+        pr_info("This threeg sysfs will be removed in 2012"
+                " - used by: %s\n", current->comm);
         if (wmi_has_guid(WMID_GUID3))
                 status = wmid3_get_device_status(&result,
                                 ACER_WMID3_GDS_THREEG);
@@ -1415,8 +1418,10 @@ static ssize_t set_bool_threeg(struct device *dev,
 {
         u32 tmp = simple_strtoul(buf, NULL, 10);
         acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
-                if (ACPI_FAILURE(status))
-                        return -EINVAL;
+        pr_info("This threeg sysfs will be removed in 2012"
+                " - used by: %s\n", current->comm);
+        if (ACPI_FAILURE(status))
+                return -EINVAL;
         return count;
 }
 static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
@@ -1425,6 +1430,8 @@ static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
         char *buf)
 {
+        pr_info("This interface sysfs will be removed in 2012"
+                " - used by: %s\n", current->comm);
         switch (interface->type) {
         case ACER_AMW0:
                 return sprintf(buf, "AMW0\n");