* [PATCH v1 7/7] perf: qcom_l2_pmu: ACPI: Use ACPI_COMPANION() directly [not found] <4369779.LvFx2qVVIh@kreacher> @ 2021-10-12 17:50 ` Rafael J. Wysocki 2021-10-13 16:15 ` [PATCH v2 " Rafael J. Wysocki 0 siblings, 1 reply; 3+ messages in thread From: Rafael J. Wysocki @ 2021-10-12 17:50 UTC (permalink / raw) To: Linux ACPI; +Cc: LKML, Andy Gross, Bjorn Andersson, linux-arm-msm From: Rafael J. Wysocki <rafael@kernel.org> The ACPI_HANDLE() macro is a wrapper arond the ACPI_COMPANION() macro and the ACPI handle produced by the former comes from the ACPI device object produced by the latter, so it is way more straightforward to evaluate the latter directly instead of passing the handle produced by the former to acpi_bus_get_device(). Modify l2_cache_pmu_probe_cluster() accordingly (no intentional functional impact). While at it, rename the ACPI device pointer to adev for more clarity. Signed-off-by: Rafael J. Wysocki <rafael@kernel.org> --- drivers/perf/qcom_l2_pmu.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) Index: linux-pm/drivers/perf/qcom_l2_pmu.c =================================================================== --- linux-pm.orig/drivers/perf/qcom_l2_pmu.c +++ linux-pm/drivers/perf/qcom_l2_pmu.c @@ -840,17 +840,14 @@ static int l2_cache_pmu_probe_cluster(st { struct platform_device *pdev = to_platform_device(dev->parent); struct platform_device *sdev = to_platform_device(dev); + struct acpi_device *adev = ACPI_COMPANION(dev); struct l2cache_pmu *l2cache_pmu = data; struct cluster_pmu *cluster; - struct acpi_device *device; unsigned long fw_cluster_id; int err; int irq; - if (acpi_bus_get_device(ACPI_HANDLE(dev), &device)) - return -ENODEV; - - if (kstrtoul(device->pnp.unique_id, 10, &fw_cluster_id) < 0) { + if (!adev || kstrtoul(adev->pnp.unique_id, 10, &fw_cluster_id) < 0) { dev_err(&pdev->dev, "unable to read ACPI uid\n"); return -ENODEV; } ^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v2 7/7] perf: qcom_l2_pmu: ACPI: Use ACPI_COMPANION() directly 2021-10-12 17:50 ` [PATCH v1 7/7] perf: qcom_l2_pmu: ACPI: Use ACPI_COMPANION() directly Rafael J. Wysocki @ 2021-10-13 16:15 ` Rafael J. Wysocki 2021-10-26 13:41 ` Rafael J. Wysocki 0 siblings, 1 reply; 3+ messages in thread From: Rafael J. Wysocki @ 2021-10-13 16:15 UTC (permalink / raw) To: Linux ACPI; +Cc: LKML, Andy Gross, Bjorn Andersson, linux-arm-msm From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> The ACPI_HANDLE() macro is a wrapper arond the ACPI_COMPANION() macro and the ACPI handle produced by the former comes from the ACPI device object produced by the latter, so it is way more straightforward to evaluate the latter directly instead of passing the handle produced by the former to acpi_bus_get_device(). Modify l2_cache_pmu_probe_cluster() accordingly (no intentional functional impact). While at it, rename the ACPI device pointer to adev for more clarity. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> --- v1 -> v2: * Resend with a different From and S-o-b address. No other changes. --- drivers/perf/qcom_l2_pmu.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) Index: linux-pm/drivers/perf/qcom_l2_pmu.c =================================================================== --- linux-pm.orig/drivers/perf/qcom_l2_pmu.c +++ linux-pm/drivers/perf/qcom_l2_pmu.c @@ -840,17 +840,14 @@ static int l2_cache_pmu_probe_cluster(st { struct platform_device *pdev = to_platform_device(dev->parent); struct platform_device *sdev = to_platform_device(dev); + struct acpi_device *adev = ACPI_COMPANION(dev); struct l2cache_pmu *l2cache_pmu = data; struct cluster_pmu *cluster; - struct acpi_device *device; unsigned long fw_cluster_id; int err; int irq; - if (acpi_bus_get_device(ACPI_HANDLE(dev), &device)) - return -ENODEV; - - if (kstrtoul(device->pnp.unique_id, 10, &fw_cluster_id) < 0) { + if (!adev || kstrtoul(adev->pnp.unique_id, 10, &fw_cluster_id) < 0) { dev_err(&pdev->dev, "unable to read ACPI uid\n"); return -ENODEV; } ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2 7/7] perf: qcom_l2_pmu: ACPI: Use ACPI_COMPANION() directly 2021-10-13 16:15 ` [PATCH v2 " Rafael J. Wysocki @ 2021-10-26 13:41 ` Rafael J. Wysocki 0 siblings, 0 replies; 3+ messages in thread From: Rafael J. Wysocki @ 2021-10-26 13:41 UTC (permalink / raw) To: Rafael J. Wysocki Cc: Linux ACPI, LKML, Andy Gross, Bjorn Andersson, linux-arm-msm On Wed, Oct 13, 2021 at 6:16 PM Rafael J. Wysocki <rjw@rjwysocki.net> wrote: > > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > > The ACPI_HANDLE() macro is a wrapper arond the ACPI_COMPANION() > macro and the ACPI handle produced by the former comes from the > ACPI device object produced by the latter, so it is way more > straightforward to evaluate the latter directly instead of passing > the handle produced by the former to acpi_bus_get_device(). > > Modify l2_cache_pmu_probe_cluster() accordingly (no intentional > functional impact). > > While at it, rename the ACPI device pointer to adev for more > clarity. > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> If nobody nas any concerns regarding this patch, I will queue it up for 5.16 in the ACPI tree, because it is requisite for further changes. Thanks! > --- > > v1 -> v2: > * Resend with a different From and S-o-b address. No other changes. > > --- > drivers/perf/qcom_l2_pmu.c | 7 ++----- > 1 file changed, 2 insertions(+), 5 deletions(-) > > Index: linux-pm/drivers/perf/qcom_l2_pmu.c > =================================================================== > --- linux-pm.orig/drivers/perf/qcom_l2_pmu.c > +++ linux-pm/drivers/perf/qcom_l2_pmu.c > @@ -840,17 +840,14 @@ static int l2_cache_pmu_probe_cluster(st > { > struct platform_device *pdev = to_platform_device(dev->parent); > struct platform_device *sdev = to_platform_device(dev); > + struct acpi_device *adev = ACPI_COMPANION(dev); > struct l2cache_pmu *l2cache_pmu = data; > struct cluster_pmu *cluster; > - struct acpi_device *device; > unsigned long fw_cluster_id; > int err; > int irq; > > - if (acpi_bus_get_device(ACPI_HANDLE(dev), &device)) > - return -ENODEV; > - > - if (kstrtoul(device->pnp.unique_id, 10, &fw_cluster_id) < 0) { > + if (!adev || kstrtoul(adev->pnp.unique_id, 10, &fw_cluster_id) < 0) { > dev_err(&pdev->dev, "unable to read ACPI uid\n"); > return -ENODEV; > } > > > ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-10-26 13:42 UTC | newest]
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2021-10-12 17:50 ` [PATCH v1 7/7] perf: qcom_l2_pmu: ACPI: Use ACPI_COMPANION() directly Rafael J. Wysocki
2021-10-13 16:15 ` [PATCH v2 " Rafael J. Wysocki
2021-10-26 13:41 ` Rafael J. Wysocki
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