Re: [PATCH] perf: arm_cspmu: Fix module cyclic dependency

[Suzuki K Poulose]

On 16/11/2022 20:39, Besar Wicaksono wrote:
> Build on arm64 allmodconfig failed with:
>    | depmod: ERROR: Cycle detected: arm_cspmu -> nvidia_cspmu -> arm_cspmu
>    | depmod: ERROR: Found 2 modules in dependency cycles!
>
> The arm_cspmu.c provides standard functions to operate the PMU and the
> vendor code provides vendor specific attributes. Both need to be built as
> single kernel module.
>
> Update the makefile to compile sources under arm_cspmu into one module.
>
> Signed-off-by: Besar Wicaksono <bwicaksono@xxxxxxxxxx>
> ---
>   drivers/perf/arm_cspmu/Makefile | 5 ++---
>   1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/perf/arm_cspmu/Makefile b/drivers/perf/arm_cspmu/Makefile
> index 641db85c018b..fedb17df982d 100644
> --- a/drivers/perf/arm_cspmu/Makefile
> +++ b/drivers/perf/arm_cspmu/Makefile
> @@ -2,6 +2,5 @@
>   #
>   # SPDX-License-Identifier: GPL-2.0
>   
> -obj-$(CONFIG_ARM_CORESIGHT_PMU_ARCH_SYSTEM_PMU) += \
> -	arm_cspmu.o \
> -	nvidia_cspmu.o
> +obj-$(CONFIG_ARM_CORESIGHT_PMU_ARCH_SYSTEM_PMU) += arm_cspmu_module.o
> +arm_cspmu_module-y := arm_cspmu.o nvidia_cspmu.o

Reviewed-and-Tested-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>

> base-commit: 9500fc6e9e6077616c0dea0f7eb33138be94ed0c