Re: [PATCH RESEND v2] bus: ARM CCN PMU driver

From: Arnd Bergmann
Date: Wed Jul 23 2014 - 17:29:47 EST

On Wednesday 23 July 2014 22:23:38 Arnd Bergmann wrote:
> On Tuesday 22 July 2014, Pawel Moll wrote:
> > Driver providing perf backend for ARM Cache Coherent Network
> > interconnect. Supports counting all hardware events and crosspoint
> > watchpoints.
> >
> > Currently works with CCN-504 only, although there should be
> > no changes required for CCN-508 (just impossible to test it now).
> >
> > Signed-off-by: Pawel Moll <pawel.moll@xxxxxxx>
> Applied to next/drivers, thanks!

I'm getting build errors with CONFIG_PERF_EVENTS disabled.
Is the patch below the right answer, or should we still load
the driver and #ifdef the perf-events code?

It seems to me that the driver doesn't do anything besides
perf events, but I could be missing something.


diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index 5c0c2764839f..603eb1be4f6a 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -53,6 +53,7 @@ config ARM_CCI
config ARM_CCN
bool "ARM CCN driver support"
depends on ARM || ARM64
+ depends on PERF_EVENTS
PMU (perf) driver supporting the ARM CCN (Cache Coherent Network)

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at