dcdbas: export functionality for use in other drivers
Matthew Garrett [Thu, 8 Jan 2009 02:08:54 +0000 (18:08 -0800)]
The dcdbas code allows calls to be made into the firmware on Dell systems.
 Exporting this to other drivers allows them to implement Dell-specific
functionality in a safe way.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/firmware/dcdbas.c
drivers/firmware/dcdbas.h

index 50a071f..777fba4 100644 (file)
@@ -238,11 +238,11 @@ static ssize_t host_control_on_shutdown_store(struct device *dev,
 }
 
 /**
- * smi_request: generate SMI request
+ * dcdbas_smi_request: generate SMI request
  *
  * Called with smi_data_lock.
  */
-static int smi_request(struct smi_cmd *smi_cmd)
+int dcdbas_smi_request(struct smi_cmd *smi_cmd)
 {
        cpumask_t old_mask;
        int ret = 0;
@@ -309,14 +309,14 @@ static ssize_t smi_request_store(struct device *dev,
        switch (val) {
        case 2:
                /* Raw SMI */
-               ret = smi_request(smi_cmd);
+               ret = dcdbas_smi_request(smi_cmd);
                if (!ret)
                        ret = count;
                break;
        case 1:
                /* Calling Interface SMI */
                smi_cmd->ebx = (u32) virt_to_phys(smi_cmd->command_buffer);
-               ret = smi_request(smi_cmd);
+               ret = dcdbas_smi_request(smi_cmd);
                if (!ret)
                        ret = count;
                break;
@@ -333,6 +333,7 @@ out:
        mutex_unlock(&smi_data_lock);
        return ret;
 }
+EXPORT_SYMBOL(dcdbas_smi_request);
 
 /**
  * host_control_smi: generate host control SMI
index 87bc341..ca3cb0a 100644 (file)
@@ -101,5 +101,7 @@ struct apm_cmd {
        } __attribute__ ((packed)) parameters;
 } __attribute__ ((packed));
 
+int dcdbas_smi_request(struct smi_cmd *smi_cmd);
+
 #endif /* _DCDBAS_H_ */