From: Jonathan Cameron <Jonathan.Cameron@huawei.com> To: Thomas Gleixner <tglx@linutronix.de>, Peter Zijlstra <peterz@infradead.org>, <linux-pm@vger.kernel.org>, <loongarch@lists.linux.dev>, <linux-acpi@vger.kernel.org>, <linux-arch@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <kvmarm@lists.linux.dev>, <x86@kernel.org>, Russell King <linux@armlinux.org.uk>, "Rafael J . Wysocki" <rafael@kernel.org>, Miguel Luis <miguel.luis@oracle.com>, James Morse <james.morse@arm.com>, Salil Mehta <salil.mehta@huawei.com>, Jean-Philippe Brucker <jean-philippe@linaro.org>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>, Hanjun Guo <guohanjun@huawei.com> Cc: Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Dave Hansen <dave.hansen@linux.intel.com>, <linuxarm@huawei.com>, <justin.he@arm.com>, <jianyong.wu@arm.com>, Lorenzo Pieralisi <lpieralisi@kernel.org>, Sudeep Holla <sudeep.holla@arm.com> Subject: [PATCH v8 07/16] ACPI: scan: switch to flags for acpi_scan_check_and_detach() Date: Fri, 26 Apr 2024 14:51:17 +0100 [thread overview] Message-ID: <20240426135126.12802-8-Jonathan.Cameron@huawei.com> (raw) In-Reply-To: <20240426135126.12802-1-Jonathan.Cameron@huawei.com> Precursor patch adds the ability to pass a uintptr_t of flags into acpi_scan_check_and detach() so that additional flags can be added to indicate whether to defer portions of the eject flow. The new flag follows in the next patch. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Tested-by: Miguel Luis <miguel.luis@oracle.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> --- v8: No change (tags picked up) --- drivers/acpi/scan.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 7c157bf92695..fb5427caf0f4 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -244,13 +244,16 @@ static int acpi_scan_try_to_offline(struct acpi_device *device) return 0; } -static int acpi_scan_check_and_detach(struct acpi_device *adev, void *check) +#define ACPI_SCAN_CHECK_FLAG_STATUS BIT(0) + +static int acpi_scan_check_and_detach(struct acpi_device *adev, void *p) { struct acpi_scan_handler *handler = adev->handler; + uintptr_t flags = (uintptr_t)p; - acpi_dev_for_each_child_reverse(adev, acpi_scan_check_and_detach, check); + acpi_dev_for_each_child_reverse(adev, acpi_scan_check_and_detach, p); - if (check) { + if (flags & ACPI_SCAN_CHECK_FLAG_STATUS) { acpi_bus_get_status(adev); /* * Skip devices that are still there and take the enabled @@ -288,7 +291,9 @@ static int acpi_scan_check_and_detach(struct acpi_device *adev, void *check) static void acpi_scan_check_subtree(struct acpi_device *adev) { - acpi_scan_check_and_detach(adev, (void *)true); + uintptr_t flags = ACPI_SCAN_CHECK_FLAG_STATUS; + + acpi_scan_check_and_detach(adev, (void *)flags); } static int acpi_scan_hot_remove(struct acpi_device *device) @@ -2600,7 +2605,9 @@ EXPORT_SYMBOL(acpi_bus_scan); */ void acpi_bus_trim(struct acpi_device *adev) { - acpi_scan_check_and_detach(adev, NULL); + uintptr_t flags = 0; + + acpi_scan_check_and_detach(adev, (void *)flags); } EXPORT_SYMBOL_GPL(acpi_bus_trim); -- 2.39.2
WARNING: multiple messages have this Message-ID (diff)
From: Jonathan Cameron <Jonathan.Cameron@huawei.com> To: Thomas Gleixner <tglx@linutronix.de>, Peter Zijlstra <peterz@infradead.org>, <linux-pm@vger.kernel.org>, <loongarch@lists.linux.dev>, <linux-acpi@vger.kernel.org>, <linux-arch@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <kvmarm@lists.linux.dev>, <x86@kernel.org>, Russell King <linux@armlinux.org.uk>, "Rafael J . Wysocki" <rafael@kernel.org>, Miguel Luis <miguel.luis@oracle.com>, James Morse <james.morse@arm.com>, Salil Mehta <salil.mehta@huawei.com>, Jean-Philippe Brucker <jean-philippe@linaro.org>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>, Hanjun Guo <guohanjun@huawei.com> Cc: Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Dave Hansen <dave.hansen@linux.intel.com>, <linuxarm@huawei.com>, <justin.he@arm.com>, <jianyong.wu@arm.com>, Lorenzo Pieralisi <lpieralisi@kernel.org>, Sudeep Holla <sudeep.holla@arm.com> Subject: [PATCH v8 07/16] ACPI: scan: switch to flags for acpi_scan_check_and_detach() Date: Fri, 26 Apr 2024 14:51:17 +0100 [thread overview] Message-ID: <20240426135126.12802-8-Jonathan.Cameron@huawei.com> (raw) In-Reply-To: <20240426135126.12802-1-Jonathan.Cameron@huawei.com> Precursor patch adds the ability to pass a uintptr_t of flags into acpi_scan_check_and detach() so that additional flags can be added to indicate whether to defer portions of the eject flow. The new flag follows in the next patch. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Tested-by: Miguel Luis <miguel.luis@oracle.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> --- v8: No change (tags picked up) --- drivers/acpi/scan.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 7c157bf92695..fb5427caf0f4 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -244,13 +244,16 @@ static int acpi_scan_try_to_offline(struct acpi_device *device) return 0; } -static int acpi_scan_check_and_detach(struct acpi_device *adev, void *check) +#define ACPI_SCAN_CHECK_FLAG_STATUS BIT(0) + +static int acpi_scan_check_and_detach(struct acpi_device *adev, void *p) { struct acpi_scan_handler *handler = adev->handler; + uintptr_t flags = (uintptr_t)p; - acpi_dev_for_each_child_reverse(adev, acpi_scan_check_and_detach, check); + acpi_dev_for_each_child_reverse(adev, acpi_scan_check_and_detach, p); - if (check) { + if (flags & ACPI_SCAN_CHECK_FLAG_STATUS) { acpi_bus_get_status(adev); /* * Skip devices that are still there and take the enabled @@ -288,7 +291,9 @@ static int acpi_scan_check_and_detach(struct acpi_device *adev, void *check) static void acpi_scan_check_subtree(struct acpi_device *adev) { - acpi_scan_check_and_detach(adev, (void *)true); + uintptr_t flags = ACPI_SCAN_CHECK_FLAG_STATUS; + + acpi_scan_check_and_detach(adev, (void *)flags); } static int acpi_scan_hot_remove(struct acpi_device *device) @@ -2600,7 +2605,9 @@ EXPORT_SYMBOL(acpi_bus_scan); */ void acpi_bus_trim(struct acpi_device *adev) { - acpi_scan_check_and_detach(adev, NULL); + uintptr_t flags = 0; + + acpi_scan_check_and_detach(adev, (void *)flags); } EXPORT_SYMBOL_GPL(acpi_bus_trim); -- 2.39.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-04-26 13:55 UTC|newest] Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-26 13:51 [PATCH v8 00/16] ACPI/arm64: add support for virtual cpu hotplug Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 01/16] ACPI: processor: Simplify initial onlining to use same path for cold and hotplug Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 16:05 ` Miguel Luis 2024-04-26 16:05 ` Miguel Luis 2024-04-26 17:21 ` Miguel Luis 2024-04-26 17:21 ` Miguel Luis 2024-04-26 17:49 ` Jonathan Cameron 2024-04-26 17:49 ` Jonathan Cameron 2024-04-26 17:57 ` Rafael J. Wysocki 2024-04-26 17:57 ` Rafael J. Wysocki 2024-04-26 18:09 ` Jonathan Cameron 2024-04-26 18:09 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 02/16] cpu: Do not warn on arch_register_cpu() returning -EPROBE_DEFER Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 03/16] ACPI: processor: Drop duplicated check on _STA (enabled + present) Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 04/16] ACPI: processor: Move checks and availability of acpi_processor earlier Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-30 4:17 ` Gavin Shan 2024-04-30 4:17 ` Gavin Shan 2024-04-30 9:28 ` Jonathan Cameron 2024-04-30 9:28 ` Jonathan Cameron 2024-04-30 10:12 ` Rafael J. Wysocki 2024-04-30 10:12 ` Rafael J. Wysocki 2024-04-30 10:13 ` Jonathan Cameron 2024-04-30 10:13 ` Jonathan Cameron 2024-04-30 10:17 ` Rafael J. Wysocki 2024-04-30 10:17 ` Rafael J. Wysocki 2024-04-30 10:45 ` Jonathan Cameron 2024-04-30 10:45 ` Jonathan Cameron 2024-04-30 10:47 ` Rafael J. Wysocki 2024-04-30 10:47 ` Rafael J. Wysocki 2024-04-30 13:42 ` Jonathan Cameron 2024-04-30 13:42 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 05/16] ACPI: processor: Add acpi_get_processor_handle() helper Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-30 4:26 ` Gavin Shan 2024-04-30 4:26 ` Gavin Shan 2024-04-30 11:07 ` Jonathan Cameron 2024-04-30 11:07 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 06/16] ACPI: processor: Register deferred CPUs from acpi_processor_get_info() Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron [this message] 2024-04-26 13:51 ` [PATCH v8 07/16] ACPI: scan: switch to flags for acpi_scan_check_and_detach() Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 08/16] ACPI: Add post_eject to struct acpi_scan_handler for cpu hotplug Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 09/16] arm64: acpi: Move get_cpu_for_acpi_id() to a header Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-30 16:37 ` Lorenzo Pieralisi 2024-04-30 16:37 ` Lorenzo Pieralisi 2024-04-26 13:51 ` [PATCH v8 10/16] irqchip/gic-v3: Don't return errors from gic_acpi_match_gicc() Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 15:14 ` Marc Zyngier 2024-04-26 15:14 ` Marc Zyngier 2024-04-26 13:51 ` [PATCH v8 11/16] irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 16:26 ` Marc Zyngier 2024-04-26 16:26 ` Marc Zyngier 2024-04-26 18:28 ` Jonathan Cameron 2024-04-26 18:28 ` Jonathan Cameron 2024-04-28 11:28 ` Marc Zyngier 2024-04-28 11:28 ` Marc Zyngier 2024-04-29 9:21 ` Jonathan Cameron 2024-04-29 9:21 ` Jonathan Cameron 2024-04-30 12:15 ` Jonathan Cameron 2024-04-30 12:15 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 12/16] arm64: psci: Ignore DENIED CPUs Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-30 4:29 ` Gavin Shan 2024-04-30 4:29 ` Gavin Shan 2024-04-26 13:51 ` [PATCH v8 13/16] arm64: arch_register_cpu() variant to check if an ACPI handle is now available Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-30 4:31 ` Gavin Shan 2024-04-30 4:31 ` Gavin Shan 2024-04-26 13:51 ` [PATCH v8 14/16] arm64: Kconfig: Enable hotplug CPU on arm64 if ACPI_PROCESSOR is enabled Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 15/16] arm64: document virtual CPU hotplug's expectations Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron 2024-04-26 13:51 ` [PATCH v8 16/16] cpumask: Add enabled cpumask for present CPUs that can be brought online Jonathan Cameron 2024-04-26 13:51 ` Jonathan Cameron
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