git: sys/sys: Protect len and inout parameters in _IOC definition.

[Rimvydas Jasinskas]

commit af4654051f87992d19a5f76d0f729854989c4990
Author: zrj <rimvydas.jasinskas at gmail.com>
Date:   Thu Jun 30 13:17:44 2016 +0300

    sys/sys: Protect len and inout parameters in _IOC definition.
    
    This should reduce the likelihood of _IOC() macro expanding to something
    that wasn't intended and would provide a more flexible interface too.
    While there, remove hardcoded value for IOC_DIRMASK
    
    Taken-from: FreeBSD

Summary of changes:
 sys/sys/ioccom.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/af4654051f87992d19a5f76d0f729854989c4990


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