https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273458
Brooks Davis <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #1 from Brooks Davis <[email protected]> --- On FreeBSD the _IO* values set flags in the command word that control what centralized copyin/out operations are performed by the ioctl infrastructure and _IOW is correct for something that should not modify the copied in ifreq. While I can imagine use cases were it would be nice to know if any data is to be written out, I don't believe the flags set by _IO* are part of the public API of ioctl and introducing a pointless copyout isn't the right thing to do. Note that changing this define would be a ABI break and we'd have to support _IOW('i', 44, struct ifreq) essentially forever. -- You are receiving this mail because: You are the assignee for the bug.
