From 77654350306accb55efa73eaa2b1424a639595fc Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 12 Sep 2018 11:28:34 -0400 Subject: take compat TIOC[SG]SERIAL treatment into tty_compat_ioctl() Signed-off-by: Al Viro --- fs/compat_ioctl.c | 67 ------------------------------------------------------- 1 file changed, 67 deletions(-) (limited to 'fs/compat_ioctl.c') diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 670b8cbd0896..2b35c6707e3d 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -560,69 +560,6 @@ static int mt_ioctl_trans(struct file *file, #define HIDPGETCONNLIST _IOR('H', 210, int) #define HIDPGETCONNINFO _IOR('H', 211, int) - -struct serial_struct32 { - compat_int_t type; - compat_int_t line; - compat_uint_t port; - compat_int_t irq; - compat_int_t flags; - compat_int_t xmit_fifo_size; - compat_int_t custom_divisor; - compat_int_t baud_base; - unsigned short close_delay; - char io_type; - char reserved_char[1]; - compat_int_t hub6; - unsigned short closing_wait; /* time to wait before closing */ - unsigned short closing_wait2; /* no longer used... */ - compat_uint_t iomem_base; - unsigned short iomem_reg_shift; - unsigned int port_high; - /* compat_ulong_t iomap_base FIXME */ - compat_int_t reserved[1]; -}; - -static int serial_struct_ioctl(struct file *file, - unsigned cmd, struct serial_struct32 __user *ss32) -{ - typedef struct serial_struct32 SS32; - int err; - struct serial_struct __user *ss = compat_alloc_user_space(sizeof(*ss)); - __u32 udata; - unsigned int base; - unsigned char *iomem_base; - - if (ss == NULL) - return -EFAULT; - if (cmd == TIOCSSERIAL) { - if (copy_in_user(ss, ss32, offsetof(SS32, iomem_base)) || - get_user(udata, &ss32->iomem_base)) - return -EFAULT; - iomem_base = compat_ptr(udata); - if (put_user(iomem_base, &ss->iomem_base) || - convert_in_user(&ss32->iomem_reg_shift, - &ss->iomem_reg_shift) || - convert_in_user(&ss32->port_high, &ss->port_high) || - put_user(0UL, &ss->iomap_base)) - return -EFAULT; - } - err = do_ioctl(file, cmd, (unsigned long)ss); - if (cmd == TIOCGSERIAL && err >= 0) { - if (copy_in_user(ss32, ss, offsetof(SS32, iomem_base)) || - get_user(iomem_base, &ss->iomem_base)) - return -EFAULT; - base = (unsigned long)iomem_base >> 32 ? - 0xffffffff : (unsigned)(unsigned long)iomem_base; - if (put_user(base, &ss32->iomem_base) || - convert_in_user(&ss->iomem_reg_shift, - &ss32->iomem_reg_shift) || - convert_in_user(&ss->port_high, &ss32->port_high)) - return -EFAULT; - } - return err; -} - #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) @@ -1242,10 +1179,6 @@ static long do_ioctl_trans(unsigned int cmd, case MTIOCPOS32: return mt_ioctl_trans(file, cmd, argp); #endif - /* Serial */ - case TIOCGSERIAL: - case TIOCSSERIAL: - return serial_struct_ioctl(file, cmd, argp); /* Not implemented in the native kernel */ case RTC_IRQP_READ32: case RTC_IRQP_SET32: -- cgit v1.2.3