On 16/09/15 15:21, Suzuki K. Poulose wrote: > From: "Suzuki K. Poulose" <suzuki.poul...@arm.com> > > Use the system wide value of ID_AA64DFR0 to make safer decisions > > Signed-off-by: Suzuki K. Poulose <suzuki.poul...@arm.com> > --- > arch/arm64/include/asm/hw_breakpoint.h | 14 ++------------ > arch/arm64/kernel/debug-monitors.c | 6 ++++-- > arch/arm64/kernel/hw_breakpoint.c | 19 ++++++++++++++++++- > 3 files changed, 24 insertions(+), 15 deletions(-) >
Looks like this patch introduces build-time regression if CONFIG_PERF_EVENTS is not set: > arch/arm64/kvm/built-in.o: In function `kvm_arm_setup_debug': > /work/tools/linux/arch/arm64/kvm/debug.c:173: undefined reference to > `get_num_brps' > /work/tools/linux/arch/arm64/kvm/debug.c:177: undefined reference to > `get_num_wrps' > arch/arm64/kvm/built-in.o: In function `kvm_arm_clear_debug': > /work/tools/linux/arch/arm64/kvm/debug.c:208: undefined reference to > `get_num_brps' > /work/tools/linux/arch/arm64/kvm/debug.c:212: undefined reference to > `get_num_wrps' > arch/arm64/kvm/built-in.o: In function `kvm_arch_dev_ioctl_check_extension': > /work/tools/linux/arch/arm64/kvm/reset.c:78: undefined reference to > `get_num_wrps' > /work/tools/linux/arch/arm64/kvm/reset.c:75: undefined reference to > `get_num_brps' > make: *** [vmlinux] Error 1 Vladimir -- 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/
