Re: linux-next: build failure after merge of the arm64 tree

Suzuki K Poulose <suzuki.poulose@xxxxxxx> · Wed, 16 Nov 2022 10:49:35 +0000

On 15/11/2022 23:52, Besar Wicaksono wrote:

-----Original Message-----
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Sent: Tuesday, November 15, 2022 4:04 PM
To: Catalin Marinas <catalin.marinas@xxxxxxx>; Will Deacon
<will@xxxxxxxxxx>
Cc: Besar Wicaksono <bwicaksono@xxxxxxxxxx>; Linux Kernel Mailing List
<linux-kernel@xxxxxxxxxxxxxxx>; Linux Next Mailing List <linux-
next@xxxxxxxxxxxxxxx>
Subject: linux-next: build failure after merge of the arm64 tree

Hi all,

After merging the arm64 tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/perf/arm_cspmu/arm_cspmu.c: In function 'arm_cspmu_get_cpus':
drivers/perf/arm_cspmu/arm_cspmu.c:1114:29: error: implicit declaration of
function 'get_acpi_id_for_cpu' [-Werror=implicit-function-declaration]
  1114 |                             get_acpi_id_for_cpu(cpu)) {
       |                             ^~~~~~~~~~~~~~~~~~~

+CC Suzuki for awareness.

This function is used for searching CPU with matching ACPI Processor ID in PPTT.
I will check if adding PPTT dependency to arm_cspmu would resolve this issue.

Please make this dependent on ARM64. That should resolve the failure.
As such the helper is available with ARM64 && ACPI.

Suzuki

Regards,
Besar

Caused by commit

   e37dfd65731d ("perf: arm_cspmu: Add support for ARM CoreSight PMU
driver")

I have used the arm64 tree from next-20221115 for today.

--
Cheers,
Stephen Rothwell