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Commit d9a24f46 authored by Ravi Gummadidala's avatar Ravi Gummadidala Committed by Gerrit - the friendly Code Review server
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msm: rmnet_ipa: add compat_ioctl support 



This is needed to enable a 32-bit user-space rmnet_ipa client on
a 64-bit kernel.

Change-Id: Icb596f651205ff5b656126b450609189f79e9f50
Signed-off-by: default avatarRavi Gummadidala <rgummadi@codeaurora.org>
parent 5d44dd92

drivers/platform/msm/ipa/rmnet_ipa_fd_ioctl.c

+31 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2013, The Linux Foundation. All rights reserved.

/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -21,6 +21,16 @@ 
#include <ipa_qmi_service.h>



#define DRIVER_NAME "wwan_ioctl"



#ifdef CONFIG_COMPAT

#define WAN_IOC_ADD_FLT_RULE32 _IOWR(WAN_IOC_MAGIC, \

		WAN_IOCTL_ADD_FLT_RULE, \

		compat_uptr_t)

#define WAN_IOC_ADD_FLT_RULE_INDEX32 _IOWR(WAN_IOC_MAGIC, \

		WAN_IOCTL_ADD_FLT_INDEX, \

		compat_uptr_t)

#endif



static unsigned int dev_num = 1;

static struct cdev wan_ioctl_cdev;
@@ -89,6 +99,23 @@ static long wan_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
	return retval;

}



#ifdef CONFIG_COMPAT

long compat_wan_ioctl(struct file *file, unsigned int cmd, unsigned long arg)

{

	switch (cmd) {

	case WAN_IOC_ADD_FLT_RULE32:

		cmd = WAN_IOC_ADD_FLT_RULE;

		break;

	case WAN_IOC_ADD_FLT_RULE_INDEX32:

		cmd = WAN_IOC_ADD_FLT_RULE_INDEX;

		break;

	default:

		return -ENOIOCTLCMD;

	}

	return wan_ioctl(file, cmd, (unsigned long) compat_ptr(arg));

}

#endif



static int wan_ioctl_open(struct inode *inode, struct file *filp)

{

	IPAWANDBG("\n IPA A7 wan_ioctl open OK :>>>> ");
@@ -100,6 +127,9 @@ const struct file_operations fops = { 
	.open = wan_ioctl_open,

	.read = NULL,

	.unlocked_ioctl = wan_ioctl,

#ifdef CONFIG_COMPAT

	.compat_ioctl = compat_wan_ioctl,

#endif

};



int wan_ioctl_init(void)