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greybus: svc: save pointer to struct gb_svc in struct gb_interface

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Its another special protocol (just like control protocol) and is
required to be accessed from other files, lets save a pointer to it in
interface structure.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Viresh Kumar 2015-07-03 17:00:30 +05:30 committed by Greg Kroah-Hartman
parent ab69c4cea3
commit 6ceb8fdeae
3 changed files with 13 additions and 8 deletions
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1
drivers/staging/greybus/interface.h
View File

@ -14,6 +14,7 @@
struct gb_interface {
struct device dev;
struct gb_control *control;
struct gb_svc *svc;
struct list_head bundles;
struct list_head links; /* greybus_host_device->interfaces */

13
drivers/staging/greybus/svc.c
View File

@ -9,12 +9,6 @@
#include "greybus.h"
struct gb_svc {
struct gb_connection *connection;
u8 version_major;
u8 version_minor;
};
/* Define get_version() routine */
define_get_version(gb_svc, SVC);
@ -217,6 +211,9 @@ static int gb_svc_connection_init(struct gb_connection *connection)
if (ret)
kfree(svc);
/* Set interface's svc connection */
connection->bundle->intf->svc = svc;
return ret;
}
@ -224,9 +221,11 @@ static void gb_svc_connection_exit(struct gb_connection *connection)
{
struct gb_svc *svc = connection->private;
if (!svc)
if (WARN_ON(connection->bundle->intf->svc != svc))
return;
connection->bundle->intf->svc = NULL;
kfree(svc);
}

7
drivers/staging/greybus/svc.h
View File

@ -10,7 +10,12 @@
#ifndef __SVC_H
#define __SVC_H
struct gb_svc;
struct gb_svc {
struct gb_connection *connection;
u8 version_major;
u8 version_minor;
};
int gb_svc_intf_device_id(struct gb_svc *svc, u8 intf_id, u8 device_id);
int gb_svc_intf_reset(struct gb_svc *svc, u8 intf_id);