Re: [PATCH] tty_ioctl.4: Remove TIOCTTYGSTRUCT ioctl info

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On 12/02/2015 02:52 PM, Michael Kerrisk (man-pages) wrote:
> Hello Peter,
> 
> On 11/16/2015 10:39 PM, Peter Hurley wrote:
>> Thankfully, TIOCTTYGSTRUCT was removed in v2.5.67 by:
>>
>>     commit b3506a09d15dc5aee6d4bb88d759b157016e1864
>>     Author: Andries E. Brouwer <andries.brouwer@xxxxxx>
>>     Date:   Tue Apr 1 04:42:46 2003 -0800
>>
>>     [PATCH] kill TIOCTTYGSTRUCT
>>
>>     Only used for (dubious) debugging purposes, and exposes
>>     internal kernel state.
>>
>> [The git SHA is from Thomas Gleixner's history tree at
>> https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git]
> 
> Thanks for the report/patch. Man-pages tends to take a conservative
> approach about discarding stuff though, since people reading man pages
> also need to know about past behavior. Therefore, I instead
> just added a note that this ioctl() disappeared in Linux 2.5.67:
> "This command was removed in Linux 2.5.67."

Ok, thanks for the clarification.

I saw the commented-out TIOCGSERIAL/TIOCSSERIAL (which is _never_
going away) and assumed the policy was more best-practices than
complete.

Regards,
Peter Hurley

  
>> Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
>> ---
>>  man4/tty_ioctl.4 | 8 --------
>>  1 file changed, 8 deletions(-)
>>
>> diff --git a/man4/tty_ioctl.4 b/man4/tty_ioctl.4
>> index 53645d8..c3bee35 100644
>> --- a/man4/tty_ioctl.4
>> +++ b/man4/tty_ioctl.4
>> @@ -471,14 +471,6 @@ For the
>>  .B TIOCLINUX
>>  ioctl, see
>>  .BR console_ioctl (4).
>> -.SS Kernel debugging
>> -.B "#include <linux/tty.h>"
>> -.TP
>> -.BI "TIOCTTYGSTRUCT	struct tty_struct *" argp
>> -Get the
>> -.I tty_struct
>> -corresponding to
>> -.IR fd .
>>  .\"
>>  .\" .SS Serial info
>>  .\" .BR "#include <linux/serial.h>"
>>
> 
> 

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