Hi Arnd, On Wed, Aug 22, 2012 at 03:29:38PM +0100, Arnd Bergmann wrote: > When ARMv6 is enabled, we build the kernel with -march=armv6 or > -march=armv6k, which means the bfi instruction is not available. > Instead, it only works with -march=armv6t2 or -march=armv7-a. > > Without this patch, building rand-enIHAOL results in: > > /tmp/ccwCsCXC.s: Assembler messages: > /tmp/ccwCsCXC.s:49: Error: selected processor does not support ARM mode `bfi > r3,r2,#0,#8' > > Signed-off-by: Arnd Bergmann <a...@arndb.de> > Cc: Will Deacon <will.dea...@arm.com> > Cc: Russell King <rmk+ker...@arm.linux.org.uk> > --- > arch/arm/Kconfig.debug | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug > index f15f82b..11b9ff4 100644 > --- a/arch/arm/Kconfig.debug > +++ b/arch/arm/Kconfig.debug > @@ -398,6 +398,7 @@ config ARM_KPROBES_TEST > config PID_IN_CONTEXTIDR > bool "Write the current PID to the CONTEXTIDR register" > depends on CPU_COPY_V6 > + depends on CPU_V7 && !CPU_V6 > help > Enabling this option causes the kernel to write the current PID to > the PROCID field of the CONTEXTIDR register, at the expense of some
Nah, I'll fix the contextidr_notifier instead. I forgot that this stuff gets used on non-SMP v6 platforms. Cheers, Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/