[dpdk-users] fslmc bus compiling error

[Gavin Hu (Arm Technology China)]

Hi Hemant, 

Could you help review this patch? We are introducing WFE for spinlock(also for ticketlock and ring), we got the above compiling issue, this patch is to address the conflicts. 
http://patches.dpdk.org/patch/57806/ 

> -----Original Message-----
> From: Hemant Agrawal <hemant.agrawal at nxp.com>
> Sent: Thursday, August 1, 2019 11:43 AM
> To: Gavin Hu (Arm Technology China) <Gavin.Hu at arm.com>;
> users at dpdk.org
> Cc: Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com>; nd
> <nd at arm.com>
> Subject: RE: fslmc bus compiling error
> 
> HI Gavin,
> 	No we have not seen it before. Let me know your compilation steps
> and Git commit you are using to reproduce it.
> 
> Regards,
> Hemant
> 
> > -----Original Message-----
> > From: Gavin Hu (Arm Technology China) <Gavin.Hu at arm.com>
> > Sent: Wednesday, July 31, 2019 9:05 PM
> > To: Hemant Agrawal <hemant.agrawal at nxp.com>; users at dpdk.org
> > Cc: Honnappa Nagarahalli <Honnappa.Nagarahalli at arm.com>; nd
> > <nd at arm.com>
> > Subject: fslmc bus compiling error
> >
> > Hi Hemant,
> >
> > There are two "dmb" functions defined and they are conflicting with each
> > other. Did you notice this compiling error?
> >
> >   CC base/qbman/dpaa_alloc.o
> > In file included from /home/gavin/dpdk/build/include/rte_atomic.h:9,
> >                  from /home/gavin/dpdk/build/include/generic/rte_pause.h:16,
> >                  from /home/gavin/dpdk/build/include/rte_pause_64.h:13,
> >                  from /home/gavin/dpdk/build/include/rte_pause.h:13,
> >                  from /home/gavin/dpdk/build/include/generic/rte_spinlock.h:25,
> >                  from /home/gavin/dpdk/build/include/rte_spinlock.h:17,
> >                  from /home/gavin/dpdk/drivers/bus/fslmc/mc/mc_sys.c:10:
> > /home/gavin/dpdk/build/include/rte_atomic_64.h:19: error: "dmb"
> > redefined [-Werror]  #define dmb(opt) asm volatile("dmb " #opt : : :
> > "memory")
> >
> > In file included from /home/gavin/dpdk/drivers/bus/fslmc/mc/mc_sys.c:7:
> > /home/gavin/dpdk/drivers/bus/fslmc/mc/fsl_mc_sys.h:36: note: this is
> the
> > location of the previous definition  #define dmb() {__asm__
> __volatile__("" : :
> > : "memory"); }
> >
> > cc1: error: unrecognized command line option '-Wno-address-of-packed-
> > member' [-Werror]
> > cc1: all warnings being treated as errors
> > /home/gavin/dpdk/mk/internal/rte.compile-pre.mk:114: recipe for target
> > 'mc/mc_sys.o' failed
> > make[4]: *** [mc/mc_sys.o] Error 1
> >
> > Best regards,
> > Gavin