On Fri, May 29, 2015 at 02:14:32AM +0100, Stephen Rothwell wrote:
> Today's linux-next merge of the arm-perf tree got a conflict in
> arch/arm/kernel/perf_event_cpu.c between commit 338d9dd3e2ae ("ARM:
> 8351/1: perf: don't warn about missing interrupt-affinity property for
> PPIs") from Linus' tree and 8d2812849acb ("ARM: 8357/1: perf: fix
> memory leak when probing PMU PPIs") from the arm-current tree and
> commit 64d0d3943e14 ("arm: perf: make of_pmu_irq_cfg take arm_pmu")
> from the arm-perf tree.
>
> I fixed it up (see below) and can carry the fix as necessary (no action
> is required).
Thanks Stephen, looks good to me. I've got some more patches queued which
will actually mean we just remove this file altogether, but this is fine
for now.
Will
> --
> Cheers,
> Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
>
> diff --cc arch/arm/kernel/perf_event_cpu.c
> index 3b8c2833c537,50f245bf4e05..000000000000
> --- a/arch/arm/kernel/perf_event_cpu.c
> +++ b/arch/arm/kernel/perf_event_cpu.c
> @@@ -301,17 -306,12 +306,18 @@@ static int probe_current_pmu(struct arm
> return ret;
> }
>
> - static int of_pmu_irq_cfg(struct platform_device *pdev)
> + static int of_pmu_irq_cfg(struct arm_pmu *pmu)
> {
> - int i;
> + int i, irq;
> + struct platform_device *pdev = pmu->plat_device;
> - int *irqs = kcalloc(pdev->num_resources, sizeof(*irqs), GFP_KERNEL);
> + int *irqs;
>
> + /* Don't bother with PPIs; they're already affine */
> + irq = platform_get_irq(pdev, 0);
> + if (irq >= 0 && irq_is_percpu(irq))
> + return 0;
> +
> + irqs = kcalloc(pdev->num_resources, sizeof(*irqs), GFP_KERNEL);
> if (!irqs)
> return -ENOMEM;
>
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