On Thu, Mar 13, 2025 at 09:00:09AM +0100, Morten Brørup wrote: > > From: Stephen Hemminger [mailto:step...@networkplumber.org] > > Sent: Thursday, 13 March 2025 00.02 > > > > On Wed, 19 Feb 2025 15:55:17 +0100 > > Thomas Monjalon <tho...@monjalon.net> wrote: > > > > > 14/02/2025 18:20, Stephen Hemminger: > > > > The Linux version of sys/queue.h is frozen at an older version > > > > and is missing the _SAFE macro variants. Several drivers started > > > > introducing the own workarounds for this. Should be handled in EAL. > > > > > > > > Signed-off-by: Stephen Hemminger <step...@networkplumber.org> > > > > > > We may want to unify with lib/eal/windows/include/sys/queue.h > > > > > > > > > > Not sure, we have several options here: > > 1. Keep using Linux sys/queue.h and add enhancements in rte_queue.h > > 2. Make rte_queue.h a copy of FreeBSD version of queue.h (that is > > what Windows did) > > 3. Use the bsd version of queue.h. > > On Debian/Ubuntu this in libbsd-dev package and referred to as > > bsd/sys/queue.h > > > > I chose #1 as simplest. But all of these could work. #3 means DPDK has > > least new > > code, but adds another dependency to the build. > > +1 to #2: > If Linux sys/queue.h is frozen, and is a subset of FreeBSD queue.h, #2 would > consolidate all the queue macros in one file. > That seems easier to navigate (for a developer/reviewer looking at the macro > definitions/implementations) than including sys/queue.h, queue.h or > lib/eal/windows/include/sys/queue.h depending on O/S, and then defining the > missing macros in rte_queue.h. > A comment at the top of the rte_queue.h file could mention that it is a copy > of the FreeBSD queue.h file. > > -1 to #3; it adds an unnecessary dependency. > > > > > No matter what, should add to checkpatch to block any new files that > > include sys/queue.h > > directly. > > +1 to this. >
I agree with Morten, #2 looks the best option to me too. /Bruce
