本文整理汇总了C++中compat_ptr函数的典型用法代码示例。如果您正苦于以下问题:C++ compat_ptr函数的具体用法?C++ compat_ptr怎么用?C++ compat_ptr使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了compat_ptr函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: msm_buspm_dev_compat_ioctl
static long
msm_buspm_dev_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
return msm_buspm_dev_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
}
开发者ID:Emineminero,项目名称:DORIMANX_LG_STOCK_LP_KERNEL,代码行数:6,代码来源:msm-buspm-dev.c
示例2: compat_nfs_string
static inline void compat_nfs_string(struct nfs_string *dst,
struct compat_nfs_string *src)
{
dst->data = compat_ptr(src->data);
dst->len = src->len;
}
开发者ID:BWhitten,项目名称:linux-stable,代码行数:6,代码来源:compat.c
示例3: rtw_android_priv_cmd
//.........这里部分代码省略.........
pwfd_info = &padapter->wfd_info;
if( padapter->wdinfo.driver_interface == DRIVER_CFG80211 )
pwfd_info->wfd_enable = _TRUE;
break;
}
case ANDROID_WIFI_CMD_WFD_DISABLE:
{
// Commented by Albert 2012/07/24
// We can disable the WFD function by using the following command:
// wpa_cli driver wfd-disable
struct wifi_display_info *pwfd_info;
_adapter* padapter = ( _adapter * ) rtw_netdev_priv(net);
pwfd_info = &padapter->wfd_info;
if( padapter->wdinfo.driver_interface == DRIVER_CFG80211 )
pwfd_info->wfd_enable = _FALSE;
break;
}
case ANDROID_WIFI_CMD_WFD_SET_TCPPORT:
{
// Commented by Albert 2012/07/24
// We can set the tcp port number by using the following command:
// wpa_cli driver wfd-set-tcpport = 554
struct wifi_display_info *pwfd_info;
_adapter* padapter = ( _adapter * ) rtw_netdev_priv(net);
pwfd_info = &padapter->wfd_info;
if( padapter->wdinfo.driver_interface == DRIVER_CFG80211 )
#ifdef CONFIG_COMPAT
pwfd_info->rtsp_ctrlport = ( u16 ) get_int_from_command( compat_ptr(priv_cmd.buf) );
#else
pwfd_info->rtsp_ctrlport = ( u16 ) get_int_from_command( priv_cmd.buf );
#endif
break;
}
case ANDROID_WIFI_CMD_WFD_SET_MAX_TPUT:
{
break;
}
case ANDROID_WIFI_CMD_WFD_SET_DEVTYPE:
{
// Commented by Albert 2012/08/28
// Specify the WFD device type ( WFD source/primary sink )
struct wifi_display_info *pwfd_info;
_adapter* padapter = ( _adapter * ) rtw_netdev_priv(net);
pwfd_info = &padapter->wfd_info;
if( padapter->wdinfo.driver_interface == DRIVER_CFG80211 )
{
#ifdef CONFIG_COMPAT
pwfd_info->wfd_device_type = ( u8 ) get_int_from_command( compat_ptr(priv_cmd.buf) );
#else
pwfd_info->wfd_device_type = ( u8 ) get_int_from_command( priv_cmd.buf );
#endif
pwfd_info->wfd_device_type &= WFD_DEVINFO_DUAL;
}
break;
}
开发者ID:AndyPi,项目名称:rtl8812AU_8821AU_linux,代码行数:67,代码来源:rtw_android.c
示例4: ext4_compat_ioctl
long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
/* These are just misnamed, they actually get/put from/to user an int */
switch (cmd) {
case EXT4_IOC32_GETFLAGS:
cmd = EXT4_IOC_GETFLAGS;
break;
case EXT4_IOC32_SETFLAGS:
cmd = EXT4_IOC_SETFLAGS;
break;
case EXT4_IOC32_GETVERSION:
cmd = EXT4_IOC_GETVERSION;
break;
case EXT4_IOC32_SETVERSION:
cmd = EXT4_IOC_SETVERSION;
break;
case EXT4_IOC32_GROUP_EXTEND:
cmd = EXT4_IOC_GROUP_EXTEND;
break;
case EXT4_IOC32_GETVERSION_OLD:
cmd = EXT4_IOC_GETVERSION_OLD;
break;
case EXT4_IOC32_SETVERSION_OLD:
cmd = EXT4_IOC_SETVERSION_OLD;
break;
case EXT4_IOC32_GETRSVSZ:
cmd = EXT4_IOC_GETRSVSZ;
break;
case EXT4_IOC32_SETRSVSZ:
cmd = EXT4_IOC_SETRSVSZ;
break;
case EXT4_IOC32_GROUP_ADD: {
struct compat_ext4_new_group_input __user *uinput;
struct ext4_new_group_input input;
mm_segment_t old_fs;
int err;
uinput = compat_ptr(arg);
err = get_user(input.group, &uinput->group);
err |= get_user(input.block_bitmap, &uinput->block_bitmap);
err |= get_user(input.inode_bitmap, &uinput->inode_bitmap);
err |= get_user(input.inode_table, &uinput->inode_table);
err |= get_user(input.blocks_count, &uinput->blocks_count);
err |= get_user(input.reserved_blocks,
&uinput->reserved_blocks);
if (err)
return -EFAULT;
old_fs = get_fs();
set_fs(KERNEL_DS);
err = ext4_ioctl(file, EXT4_IOC_GROUP_ADD,
(unsigned long) &input);
set_fs(old_fs);
return err;
}
case EXT4_IOC_MOVE_EXT:
case EXT4_IOC_RESIZE_FS:
case EXT4_IOC_PRECACHE_EXTENTS:
case EXT4_IOC_SET_ENCRYPTION_POLICY:
case EXT4_IOC_GET_ENCRYPTION_PWSALT:
case EXT4_IOC_GET_ENCRYPTION_POLICY:
break;
default:
return -ENOIOCTLCMD;
}
return ext4_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
}
开发者ID:Chong-Li,项目名称:cse522,代码行数:66,代码来源:ioctl.c
示例5: COMPAT_SYSCALL_DEFINE3
COMPAT_SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
compat_ulong_t, arg)
{
mm_segment_t old_fs;
struct flock f;
long ret;
unsigned int conv_cmd;
switch (cmd) {
case F_GETLK:
case F_SETLK:
case F_SETLKW:
ret = get_compat_flock(&f, compat_ptr(arg));
if (ret != 0)
break;
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = sys_fcntl(fd, cmd, (unsigned long)&f);
set_fs(old_fs);
if (cmd == F_GETLK && ret == 0) {
/* GETLK was successful and we need to return the data...
* but it needs to fit in the compat structure.
* l_start shouldn't be too big, unless the original
* start + end is greater than COMPAT_OFF_T_MAX, in which
* case the app was asking for trouble, so we return
* -EOVERFLOW in that case.
* l_len could be too big, in which case we just truncate it,
* and only allow the app to see that part of the conflicting
* lock that might make sense to it anyway
*/
if (f.l_start > COMPAT_OFF_T_MAX)
ret = -EOVERFLOW;
if (f.l_len > COMPAT_OFF_T_MAX)
f.l_len = COMPAT_OFF_T_MAX;
if (ret == 0)
ret = put_compat_flock(&f, compat_ptr(arg));
}
break;
case F_GETLK64:
case F_SETLK64:
case F_SETLKW64:
case F_OFD_GETLK:
case F_OFD_SETLK:
case F_OFD_SETLKW:
ret = get_compat_flock64(&f, compat_ptr(arg));
if (ret != 0)
break;
old_fs = get_fs();
set_fs(KERNEL_DS);
conv_cmd = convert_fcntl_cmd(cmd);
ret = sys_fcntl(fd, conv_cmd, (unsigned long)&f);
set_fs(old_fs);
if ((conv_cmd == F_GETLK || conv_cmd == F_OFD_GETLK) && ret == 0) {
/* need to return lock information - see above for commentary */
if (f.l_start > COMPAT_LOFF_T_MAX)
ret = -EOVERFLOW;
if (f.l_len > COMPAT_LOFF_T_MAX)
f.l_len = COMPAT_LOFF_T_MAX;
if (ret == 0)
ret = put_compat_flock64(&f, compat_ptr(arg));
}
break;
default:
ret = sys_fcntl(fd, cmd, arg);
break;
}
return ret;
}
开发者ID:BWhitten,项目名称:linux-stable,代码行数:71,代码来源:compat.c
示例6: compat_sys_socketcall
asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
{
int ret;
u32 a[6];
u32 a0, a1;
if (call < SYS_SOCKET || call > SYS_SENDMMSG)
return -EINVAL;
if (copy_from_user(a, args, nas[call]))
return -EFAULT;
a0 = a[0];
a1 = a[1];
switch (call) {
case SYS_SOCKET:
ret = sys_socket(a0, a1, a[2]);
break;
case SYS_BIND:
ret = sys_bind(a0, compat_ptr(a1), a[2]);
break;
case SYS_CONNECT:
ret = sys_connect(a0, compat_ptr(a1), a[2]);
break;
case SYS_LISTEN:
ret = sys_listen(a0, a1);
break;
case SYS_ACCEPT:
ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), 0);
break;
case SYS_GETSOCKNAME:
ret = sys_getsockname(a0, compat_ptr(a1), compat_ptr(a[2]));
break;
case SYS_GETPEERNAME:
ret = sys_getpeername(a0, compat_ptr(a1), compat_ptr(a[2]));
break;
case SYS_SOCKETPAIR:
ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3]));
break;
case SYS_SEND:
ret = sys_send(a0, compat_ptr(a1), a[2], a[3]);
break;
case SYS_SENDTO:
ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]);
break;
case SYS_RECV:
ret = compat_sys_recv(a0, compat_ptr(a1), a[2], a[3]);
break;
case SYS_RECVFROM:
ret = compat_sys_recvfrom(a0, compat_ptr(a1), a[2], a[3],
compat_ptr(a[4]), compat_ptr(a[5]));
break;
case SYS_SHUTDOWN:
ret = sys_shutdown(a0, a1);
break;
case SYS_SETSOCKOPT:
ret = compat_sys_setsockopt(a0, a1, a[2],
compat_ptr(a[3]), a[4]);
break;
case SYS_GETSOCKOPT:
ret = compat_sys_getsockopt(a0, a1, a[2],
compat_ptr(a[3]), compat_ptr(a[4]));
break;
case SYS_SENDMSG:
ret = compat_sys_sendmsg(a0, compat_ptr(a1), a[2]);
break;
case SYS_SENDMMSG:
ret = compat_sys_sendmmsg(a0, compat_ptr(a1), a[2], a[3]);
break;
case SYS_RECVMSG:
ret = compat_sys_recvmsg(a0, compat_ptr(a1), a[2]);
break;
case SYS_RECVMMSG:
ret = compat_sys_recvmmsg(a0, compat_ptr(a1), a[2], a[3],
compat_ptr(a[4]));
break;
case SYS_ACCEPT4:
ret = sys_accept4(a0, compat_ptr(a1), compat_ptr(a[2]), a[3]);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
开发者ID:33d,项目名称:linux-2.6.21-hh20,代码行数:84,代码来源:compat.c
示例7: vhost_net_compat_ioctl
static long vhost_net_compat_ioctl(struct file *f, unsigned int ioctl,
unsigned long arg)
{
return vhost_net_ioctl(f, ioctl, (unsigned long)compat_ptr(arg));
}
开发者ID:mfleming,项目名称:linux-2.6,代码行数:5,代码来源:net.c
示例8: AuDbg
/* do not call the lower */
AuDbg("0x%x\n", cmd);
err = -ENOTTY;
}
AuTraceErr(err);
return err;
}
#ifdef CONFIG_COMPAT
long aufs_compat_ioctl_dir(struct file *file, unsigned int cmd,
unsigned long arg)
{
long err;
switch (cmd) {
case AUFS_CTL_RDU:
case AUFS_CTL_RDU_INO:
err = au_rdu_compat_ioctl(file, cmd, arg);
break;
default:
err = aufs_ioctl_dir(file, cmd, arg);
}
AuTraceErr(err);
return err;
}
#if 0 /* unused yet */
long aufs_compat_ioctl_nondir(struct file *file, unsigned int cmd,
unsigned long arg)
{
return aufs_ioctl_nondir(file, cmd, (unsigned long)compat_ptr(arg));
}
开发者ID:AKToronto,项目名称:htc-kernel-msm7227,代码行数:35,代码来源:ioctl.c
示例9: vsock_dev_compat_ioctl
static long vsock_dev_compat_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
return vsock_dev_do_ioctl(filp, cmd, compat_ptr(arg));
}
开发者ID:CedricArchambault,项目名称:linux,代码行数:5,代码来源:af_vsock.c
示例10: compat_fd_ioctl
static int compat_fd_ioctl(struct inode *inode, struct file *file,
struct gendisk *disk, unsigned int cmd, unsigned long arg)
{
mm_segment_t old_fs = get_fs();
void *karg = NULL;
unsigned int kcmd = 0;
int i, err;
for (i = 0; i < NR_FD_IOCTL_TRANS; i++)
if (cmd == fd_ioctl_trans_table[i].cmd32) {
kcmd = fd_ioctl_trans_table[i].cmd;
break;
}
if (!kcmd)
return -EINVAL;
switch (cmd) {
case FDSETPRM32:
case FDDEFPRM32:
case FDGETPRM32:
{
compat_uptr_t name;
struct compat_floppy_struct __user *uf;
struct floppy_struct *f;
uf = compat_ptr(arg);
f = karg = kmalloc(sizeof(struct floppy_struct), GFP_KERNEL);
if (!karg)
return -ENOMEM;
if (cmd == FDGETPRM32)
break;
err = __get_user(f->size, &uf->size);
err |= __get_user(f->sect, &uf->sect);
err |= __get_user(f->head, &uf->head);
err |= __get_user(f->track, &uf->track);
err |= __get_user(f->stretch, &uf->stretch);
err |= __get_user(f->gap, &uf->gap);
err |= __get_user(f->rate, &uf->rate);
err |= __get_user(f->spec1, &uf->spec1);
err |= __get_user(f->fmt_gap, &uf->fmt_gap);
err |= __get_user(name, &uf->name);
f->name = compat_ptr(name);
if (err) {
err = -EFAULT;
goto out;
}
break;
}
case FDSETDRVPRM32:
case FDGETDRVPRM32:
{
struct compat_floppy_drive_params __user *uf;
struct floppy_drive_params *f;
uf = compat_ptr(arg);
f = karg = kmalloc(sizeof(struct floppy_drive_params), GFP_KERNEL);
if (!karg)
return -ENOMEM;
if (cmd == FDGETDRVPRM32)
break;
err = __get_user(f->cmos, &uf->cmos);
err |= __get_user(f->max_dtr, &uf->max_dtr);
err |= __get_user(f->hlt, &uf->hlt);
err |= __get_user(f->hut, &uf->hut);
err |= __get_user(f->srt, &uf->srt);
err |= __get_user(f->spinup, &uf->spinup);
err |= __get_user(f->spindown, &uf->spindown);
err |= __get_user(f->spindown_offset, &uf->spindown_offset);
err |= __get_user(f->select_delay, &uf->select_delay);
err |= __get_user(f->rps, &uf->rps);
err |= __get_user(f->tracks, &uf->tracks);
err |= __get_user(f->timeout, &uf->timeout);
err |= __get_user(f->interleave_sect, &uf->interleave_sect);
err |= __copy_from_user(&f->max_errors, &uf->max_errors, sizeof(f->max_errors));
err |= __get_user(f->flags, &uf->flags);
err |= __get_user(f->read_track, &uf->read_track);
err |= __copy_from_user(f->autodetect, uf->autodetect, sizeof(f->autodetect));
err |= __get_user(f->checkfreq, &uf->checkfreq);
err |= __get_user(f->native_format, &uf->native_format);
if (err) {
err = -EFAULT;
goto out;
}
break;
}
case FDGETDRVSTAT32:
case FDPOLLDRVSTAT32:
karg = kmalloc(sizeof(struct floppy_drive_struct), GFP_KERNEL);
if (!karg)
return -ENOMEM;
break;
case FDGETFDCSTAT32:
karg = kmalloc(sizeof(struct floppy_fdc_state), GFP_KERNEL);
if (!karg)
return -ENOMEM;
break;
case FDWERRORGET32:
karg = kmalloc(sizeof(struct floppy_write_errors), GFP_KERNEL);
if (!karg)
return -ENOMEM;
//.........这里部分代码省略.........
开发者ID:Tigrouzen,项目名称:k1099,代码行数:101,代码来源:compat_ioctl.c
示例11: compat_put_u64
static int compat_put_u64(unsigned long arg, u64 val)
{
return put_user(val, (compat_u64 __user *)compat_ptr(arg));
}
开发者ID:Tigrouzen,项目名称:k1099,代码行数:4,代码来源:compat_ioctl.c
示例12: compat_put_long
static int compat_put_long(unsigned long arg, long val)
{
return put_user(val, (compat_long_t __user *)compat_ptr(arg));
}
开发者ID:Tigrouzen,项目名称:k1099,代码行数:4,代码来源:compat_ioctl.c
示例13: compat_put_int
static int compat_put_int(unsigned long arg, int val)
{
return put_user(val, (compat_int_t __user *)compat_ptr(arg));
}
开发者ID:Tigrouzen,项目名称:k1099,代码行数:4,代码来源:compat_ioctl.c
示例14: compat_put_ushort
static int compat_put_ushort(unsigned long arg, unsigned short val)
{
return put_user(val, (unsigned short __user *)compat_ptr(arg));
}
开发者ID:Tigrouzen,项目名称:k1099,代码行数:4,代码来源:compat_ioctl.c
示例15: broadcast_tdmb_compat_ioctl_control
static long broadcast_tdmb_compat_ioctl_control(struct file *flip, unsigned int cmd, unsigned long arg)
{
return broadcast_tdmb_ioctl_control(flip, cmd, (unsigned long)compat_ptr(arg));
}
开发者ID:T-Macgnolia,项目名称:android_kernel_lge_g4stylus-stock,代码行数:4,代码来源:broadcast_tdmb_drv_if.c
示例16: compat_sys_keyctl
/*
* The key control system call, 32-bit compatibility version for 64-bit archs
*
* This should only be called if the 64-bit arch uses weird pointers in 32-bit
* mode or doesn't guarantee that the top 32-bits of the argument registers on
* taking a 32-bit syscall are zero. If you can, you should call sys_keyctl()
* directly.
*/
asmlinkage long compat_sys_keyctl(u32 option,
u32 arg2, u32 arg3, u32 arg4, u32 arg5)
{
switch (option) {
case KEYCTL_GET_KEYRING_ID:
return keyctl_get_keyring_ID(arg2, arg3);
case KEYCTL_JOIN_SESSION_KEYRING:
return keyctl_join_session_keyring(compat_ptr(arg2));
case KEYCTL_UPDATE:
return keyctl_update_key(arg2, compat_ptr(arg3), arg4);
case KEYCTL_REVOKE:
return keyctl_revoke_key(arg2);
case KEYCTL_DESCRIBE:
return keyctl_describe_key(arg2, compat_ptr(arg3), arg4);
case KEYCTL_CLEAR:
return keyctl_keyring_clear(arg2);
case KEYCTL_LINK:
return keyctl_keyring_link(arg2, arg3);
case KEYCTL_UNLINK:
return keyctl_keyring_unlink(arg2, arg3);
case KEYCTL_SEARCH:
return keyctl_keyring_search(arg2, compat_ptr(arg3),
compat_ptr(arg4), arg5);
case KEYCTL_READ:
return keyctl_read_key(arg2, compat_ptr(arg3), arg4);
case KEYCTL_CHOWN:
return keyctl_chown_key(arg2, arg3, arg4);
case KEYCTL_SETPERM:
return keyctl_setperm_key(arg2, arg3);
case KEYCTL_INSTANTIATE:
return keyctl_instantiate_key(arg2, compat_ptr(arg3), arg4,
arg5);
case KEYCTL_NEGATE:
return keyctl_negate_key(arg2, arg3, arg4);
case KEYCTL_SET_REQKEY_KEYRING:
return keyctl_set_reqkey_keyring(arg2);
case KEYCTL_SET_TIMEOUT:
return keyctl_set_timeout(arg2, arg3);
case KEYCTL_ASSUME_AUTHORITY:
return keyctl_assume_authority(arg2);
case KEYCTL_GET_SECURITY:
return keyctl_get_security(arg2, compat_ptr(arg3), arg4);
case KEYCTL_SESSION_TO_PARENT:
return keyctl_session_to_parent();
case KEYCTL_REJECT:
return keyctl_reject_key(arg2, arg3, arg4, arg5);
case KEYCTL_INSTANTIATE_IOV:
return compat_keyctl_instantiate_key_iov(
arg2, compat_ptr(arg3), arg4, arg5);
default:
return -EOPNOTSUPP;
}
}
开发者ID:rrowicki,项目名称:Chrono_Kernel-1,代码行数:82,代码来源:compat.c
示例17: mei_compat_ioctl
static long mei_compat_ioctl(struct file *file,
unsigned int cmd, unsigned long data)
{
return mei_ioctl(file, cmd, (unsigned long)compat_ptr(data));
}
开发者ID:AeroGirl,项目名称:VAR-SOM-AM33-SDK7-Kernel,代码行数:5,代码来源:main.c
示例18: compat_sys_ipc
long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
u32 fifth)
{
int version;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
switch (call) {
case SEMTIMEDOP:
if (fifth)
/* sign extend semid */
return compat_sys_semtimedop((int)first,
compat_ptr(ptr), second,
compat_ptr(fifth));
/* else fall through for normal semop() */
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
/* sign extend semid */
return sys_semtimedop((int)first, compat_ptr(ptr), second,
NULL);
case SEMGET:
/* sign extend key, nsems */
return sys_semget((int)first, (int)second, third);
case SEMCTL:
/* sign extend semid, semnum */
return compat_sys_semctl((int)first, (int)second, third,
compat_ptr(ptr));
case MSGSND:
/* sign extend msqid */
return compat_sys_msgsnd((int)first, (int)second, third,
compat_ptr(ptr));
case MSGRCV:
/* sign extend msqid, msgtyp */
return compat_sys_msgrcv((int)first, second, (int)fifth,
third, version, compat_ptr(ptr));
case MSGGET:
/* sign extend key */
return sys_msgget((int)first, second);
case MSGCTL:
/* sign extend msqid */
return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
case SHMAT:
/* sign extend shmid */
return compat_sys_shmat((int)first, second, third, version,
compat_ptr(ptr));
case SHMDT:
return sys_shmdt(compat_ptr(ptr));
case SHMGET:
/* sign extend key_t */
return sys_shmget((int)first, second, third);
case SHMCTL:
/* sign extend shmid */
return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
default:
return -ENOSYS;
}
return -ENOSYS;
}
开发者ID:openube,项目名称:android_kernel_sony_c2305,代码行数:64,代码来源:sys_ppc32.c
示例19: compat_put_ulong
static int compat_put_ulong(compat_ulong_t val, unsigned long arg)
{
return put_user(val, (compat_ulong_t __user *)compat_ptr(arg));
}
开发者ID:crossbuild,项目名称:lttng-modules,代码行数:4,代码来源:ring_buffer_vfs.c
示例20: compat_ion_ioctl
long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
long ret;
if (!filp->f_op || !filp->f_op->unlocked_ioctl)
return -ENOTTY;
switch (cmd) {
case COMPAT_ION_IOC_ALLOC:
{
struct compat_ion_allocation_data __user *data32;
struct ion_allocation_data __user *data;
int err;
data32 = compat_ptr(arg);
data = compat_alloc_user_space(sizeof(*data));
if (data == NULL)
return -EFAULT;
err = compat_get_ion_allocation_data(data32, data);
if (err)
return err;
ret = filp->f_op->unlocked_ioctl(filp, ION_IOC_ALLOC,
(unsigned long)data);
err = compat_put_ion_allocation_data(data32, data);
return ret ? ret : err;
}
case COMPAT_ION_IOC_FREE:
{
struct compat_ion_allocation_data __user *data32;
struct ion_allocation_data __user *data;
int err;
data32 = compat_ptr(arg);
data = compat_alloc_user_space(sizeof(*data));
if (data == NULL)
return -EFAULT;
err = compat_get_ion_allocation_data(data32, data);
if (err)
return err;
return filp->f_op->unlocked_ioctl(filp, ION_IOC_FREE,
(unsigned long)data);
}
case COMPAT_ION_IOC_CUSTOM: {
struct compat_ion_custom_data __user *data32;
struct ion_custom_data __user *data;
int err;
data32 = compat_ptr(arg);
data = compat_alloc_user_space(sizeof(*data));
if (data == NULL)
return -EFAULT;
err = compat_get_ion_custom_data(data32, data);
if (err)
return err;
return filp->f_op->unlocked_ioctl(filp, ION_IOC_CUSTOM,
(unsigned long)data);
}
case ION_IOC_SHARE:
case ION_IOC_MAP:
case ION_IOC_IMPORT:
case ION_IOC_SYNC:
return filp->f_op->unlocked_ioctl(filp, cmd,
(unsigned long)compat_ptr(arg));
default:
return -ENOIOCTLCMD;
}
}
开发者ID:4pao,项目名称:android_kernel_hardkernel_odroidxu3,代码行数:72,代码来源:compat_ion.c
注:本文中的compat_ptr函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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