linux-kernel - [PATCH 1/2] Export SMI call functionality from dcdbas driver

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Date:	Sat, 16 Aug 2008 21:26:40 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	linux-kernel@...r.kernel.org
Cc:	michael_e_brown@...l.com
Subject: [PATCH 1/2] Export SMI call functionality from dcdbas driver

Rename the dcdbas SMI request call to avoid namespacing issues, and then 
export it so other kernel modules can make use of the functionality.

Signed-off-by: Matthew Garrett <mjg@...hat.com>

---

commit be8f9ba0f636c9eec356976acc178623ec58651e
Author: Matthew Garrett <mjg59@...00.(none)>
Date:   Sat Aug 16 21:12:09 2008 +0100

    Add support for using the dcdbas framework from inside the kernel

diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c
index 50a071f..762131b 100644
--- a/drivers/firmware/dcdbas.c
+++ b/drivers/firmware/dcdbas.c
@@ -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;
@@ -279,6 +279,8 @@ out:
 	return ret;
 }
 
+EXPORT_SYMBOL(dcdbas_smi_request);
+
 /**
  * smi_request_store:
  *
@@ -309,14 +311,14 @@ 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;
diff --git a/drivers/firmware/dcdbas.h b/drivers/firmware/dcdbas.h
index 87bc341..ca3cb0a 100644
--- a/drivers/firmware/dcdbas.h
+++ b/drivers/firmware/dcdbas.h
@@ -101,5 +101,7 @@ struct apm_cmd {
 	} __attribute__ ((packed)) parameters;
 } __attribute__ ((packed));
 
+int dcdbas_smi_request(struct smi_cmd *smi_cmd);
+
 #endif /* _DCDBAS_H_ */
 

-- 
Matthew Garrett | mjg59@...f.ucam.org
--
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