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net: add if_allocdescr() to permit updating interface description from the kernel
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Authored by melifaro on Nov 30 2022, 1:50 PM.
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melifaro added a reviewer: network.
melifaro retitled this revision from net: add if_allocdescr() to permit updating description from the kernel to net: add if_allocdescr() to permit updating interface description from the kernel.

Does this abstract enough to be worth it? Where is it intended to be used?

sys/net/if.c
4276

I think our usual pattern for this sort of thing is to pass int flags, and do malloc(size, type, M_ZERO | flags).

4278

Also, I'm sure you meant (waitok ? M_WAITOK : 0) here.

In D37566#853879, @kp wrote:

Does this abstract enough to be worth it? Where is it intended to be used?

I have a larger diff that allows netlink to update interface properties, such as description. Given we already have if_freedescr(), I moved towards the if_allocdescr() instead of exposing M_IFDESCR.

This revision is now accepted and ready to land.Nov 30 2022, 3:42 PM
zlei added a subscriber: zlei.

Looks good to me.