On Tue, 30 Apr 2013, Dave Martin wrote: > On Tue, Apr 30, 2013 at 11:12:12AM -0400, Nicolas Pitre wrote: > > On Tue, 30 Apr 2013, Dave Martin wrote: > > > > > On Tue, Apr 30, 2013 at 01:04:20PM +0200, Arnd Bergmann wrote: > > > > On Tuesday 30 April 2013, Russell King - ARM Linux wrote: > > > > > Latest nightly build of 3.9+my for-next+arm-soc's for-next results in a > > > > > great load of new warnings and errors. arch/arm/common/mcpm_head.S, > > > > > arch/arm/common/mcpm_platsmp.c, arch/arm/common/vlock.S are the biggest > > > > > source of errors. > > > > > > [...] > > > > > > > >arch/arm/common/mcpm_head.S:39: Error: selected processor does not support ARM mode `ubfx r9,r0,#0,#8' > > > > >arch/arm/common/mcpm_head.S:40: Error: selected processor does not support ARM mode `ubfx r10,r0,#8,#8' > > > > >arch/arm/common/mcpm_head.S:100: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/mcpm_head.S:115: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/mcpm_head.S:127: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/mcpm_head.S:131: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/mcpm_head.S:138: Error: selected processor does not support ARM mode `dsb' > > > > >arch/arm/common/mcpm_head.S:152: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/mcpm_head.S:161: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/mcpm_head.S:175: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/vlock.S:62: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/vlock.S:72: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/vlock.S:72: Error: selected processor does not support ARM mode `dsb' > > > > >arch/arm/common/vlock.S:89: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/vlock.S:95: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/vlock.S:95: Error: selected processor does not support ARM mode `dsb' > > > > >arch/arm/common/vlock.S:102: Error: selected processor does not support ARM mode `dmb' > > > > >arch/arm/common/vlock.S:105: Error: selected processor does not support ARM mode `dsb' > > > > > > > > Right, the problem here is that the code was never tested with an ARMv6+ARMv7 config. > > > > We can either fix it up by adding > > > > > > > > .arch armv7-a > > > > > > > > in the assembly files, or by doing the same in the Makefile: > > > > > > > > AFLAGS_vlock.S += -march=armv7-a > > > > AFLAGS_mcpm_head.S += -march=armv7-a > > > > > > > > > Hmmm, this code was tested with ARCH_MULTIPLATFORM, but it looks like > > > no v6 boards were configured in when testing that... > > > > > > > > > Assuming people are OK with the Makefile route, here's a patch for that, > > > build-tested with a v6+v7 ARCH_MULTIPLATFORM config. > > > > Isn't the .arch armv7-a route a bit cleaner? That would have been my > > choice, although I don't feel strongly about it. > > I don't feel strongly either. We already have the CFLAGS_DISABLE stuff, > so it didn't feel that unnatural to add this in the Makefile; but .arch > would work equally well. > > If somebody wants to change it, it's not a problem for me, but I didn't > want to create extra disruption by proposing a different patch... Fair enough. Acked-by: Nicolas Pitre <nico@xxxxxxxxxx> > > Cheers > ---Dave > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
