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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 11:54:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-17 11:54:55 -0800
commit93f30c73ecd0281cf3685ef0e4e384980a176176 (patch)
treebd272334a0dbd258c08b5b2237e8bf5e17ce7255 /fs/compat_ioctl.c
parent06ede5f6086757f746b7be860ae76137f4e95032 (diff)
parent96271654f55c74ff7325fbdfc535466c9deb0ce6 (diff)
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull compat and uaccess updates from Al Viro: - {get,put}_compat_sigset() series - assorted compat ioctl stuff - more set_fs() elimination - a few more timespec64 conversions - several removals of pointless access_ok() in places where it was followed only by non-__ variants of primitives * 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (24 commits) coredump: call do_unlinkat directly instead of sys_unlink fs: expose do_unlinkat for built-in callers ext4: take handling of EXT4_IOC_GROUP_ADD into a helper, get rid of set_fs() ipmi: get rid of pointless access_ok() pi433: sanitize ioctl cxlflash: get rid of pointless access_ok() mtdchar: get rid of pointless access_ok() r128: switch compat ioctls to drm_ioctl_kernel() selection: get rid of field-by-field copyin VT_RESIZEX: get rid of field-by-field copyin i2c compat ioctls: move to ->compat_ioctl() sched_rr_get_interval(): move compat to native, get rid of set_fs() mips: switch to {get,put}_compat_sigset() sparc: switch to {get,put}_compat_sigset() s390: switch to {get,put}_compat_sigset() ppc: switch to {get,put}_compat_sigset() parisc: switch to {get,put}_compat_sigset() get_compat_sigset() get rid of {get,put}_compat_itimerspec() io_getevents: Use timespec64 to represent timeouts ...
Diffstat (limited to 'fs/compat_ioctl.c')
-rw-r--r--fs/compat_ioctl.c122
1 files changed, 0 insertions, 122 deletions
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index bd5d91e119ca..f95aa0b2e9c0 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -54,8 +54,6 @@
#include <linux/if_tun.h>
#include <linux/ctype.h>
#include <linux/syscalls.h>
-#include <linux/i2c.h>
-#include <linux/i2c-dev.h>
#include <linux/atalk.h>
#include <linux/gfp.h>
#include <linux/cec.h>
@@ -137,22 +135,6 @@ static int do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return vfs_ioctl(file, cmd, arg);
}
-static int w_long(struct file *file,
- unsigned int cmd, compat_ulong_t __user *argp)
-{
- int err;
- unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
-
- if (valp == NULL)
- return -EFAULT;
- err = do_ioctl(file, cmd, (unsigned long)valp);
- if (err)
- return err;
- if (convert_in_user(valp, argp))
- return -EFAULT;
- return 0;
-}
-
struct compat_video_event {
int32_t type;
compat_time_t timestamp;
@@ -671,96 +653,6 @@ static int serial_struct_ioctl(struct file *file,
return err;
}
-/*
- * I2C layer ioctls
- */
-
-struct i2c_msg32 {
- u16 addr;
- u16 flags;
- u16 len;
- compat_caddr_t buf;
-};
-
-struct i2c_rdwr_ioctl_data32 {
- compat_caddr_t msgs; /* struct i2c_msg __user *msgs */
- u32 nmsgs;
-};
-
-struct i2c_smbus_ioctl_data32 {
- u8 read_write;
- u8 command;
- u32 size;
- compat_caddr_t data; /* union i2c_smbus_data *data */
-};
-
-struct i2c_rdwr_aligned {
- struct i2c_rdwr_ioctl_data cmd;
- struct i2c_msg msgs[0];
-};
-
-static int do_i2c_rdwr_ioctl(struct file *file,
- unsigned int cmd, struct i2c_rdwr_ioctl_data32 __user *udata)
-{
- struct i2c_rdwr_aligned __user *tdata;
- struct i2c_msg __user *tmsgs;
- struct i2c_msg32 __user *umsgs;
- compat_caddr_t datap;
- u32 nmsgs;
- int i;
-
- if (get_user(nmsgs, &udata->nmsgs))
- return -EFAULT;
- if (nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
- return -EINVAL;
-
- if (get_user(datap, &udata->msgs))
- return -EFAULT;
- umsgs = compat_ptr(datap);
-
- tdata = compat_alloc_user_space(sizeof(*tdata) +
- nmsgs * sizeof(struct i2c_msg));
- tmsgs = &tdata->msgs[0];
-
- if (put_user(nmsgs, &tdata->cmd.nmsgs) ||
- put_user(tmsgs, &tdata->cmd.msgs))
- return -EFAULT;
-
- for (i = 0; i < nmsgs; i++) {
- if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
- return -EFAULT;
- if (get_user(datap, &umsgs[i].buf) ||
- put_user(compat_ptr(datap), &tmsgs[i].buf))
- return -EFAULT;
- }
- return do_ioctl(file, cmd, (unsigned long)tdata);
-}
-
-static int do_i2c_smbus_ioctl(struct file *file,
- unsigned int cmd, struct i2c_smbus_ioctl_data32 __user *udata)
-{
- struct i2c_smbus_ioctl_data __user *tdata;
- union {
- /* beginnings of those have identical layouts */
- struct i2c_smbus_ioctl_data32 data32;
- struct i2c_smbus_ioctl_data data;
- } v;
-
- tdata = compat_alloc_user_space(sizeof(*tdata));
- if (tdata == NULL)
- return -ENOMEM;
-
- memset(&v, 0, sizeof(v));
- if (copy_from_user(&v.data32, udata, sizeof(v.data32)))
- return -EFAULT;
- v.data.data = compat_ptr(v.data32.data);
-
- if (copy_to_user(tdata, &v.data, sizeof(v.data)))
- return -EFAULT;
-
- return do_ioctl(file, cmd, (unsigned long)tdata);
-}
-
#define RTC_IRQP_READ32 _IOR('p', 0x0b, compat_ulong_t)
#define RTC_IRQP_SET32 _IOW('p', 0x0c, compat_ulong_t)
#define RTC_EPOCH_READ32 _IOR('p', 0x0d, compat_ulong_t)
@@ -1283,13 +1175,6 @@ COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
-/* i2c */
-COMPATIBLE_IOCTL(I2C_SLAVE)
-COMPATIBLE_IOCTL(I2C_SLAVE_FORCE)
-COMPATIBLE_IOCTL(I2C_TENBIT)
-COMPATIBLE_IOCTL(I2C_PEC)
-COMPATIBLE_IOCTL(I2C_RETRIES)
-COMPATIBLE_IOCTL(I2C_TIMEOUT)
/* hiddev */
COMPATIBLE_IOCTL(HIDIOCGVERSION)
COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
@@ -1464,13 +1349,6 @@ static long do_ioctl_trans(unsigned int cmd,
case TIOCGSERIAL:
case TIOCSSERIAL:
return serial_struct_ioctl(file, cmd, argp);
- /* i2c */
- case I2C_FUNCS:
- return w_long(file, cmd, argp);
- case I2C_RDWR:
- return do_i2c_rdwr_ioctl(file, cmd, argp);
- case I2C_SMBUS:
- return do_i2c_smbus_ioctl(file, cmd, argp);
/* Not implemented in the native kernel */
case RTC_IRQP_READ32:
case RTC_IRQP_SET32: