From: Jonathan Cameron <Jonathan.Cameron@huawei.com> To: <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> Cc: <linuxarm@huawei.com>, <justin.he@arm.com>, <jianyong.wu@arm.com> Subject: [PATCH v5 06/18] ACPI: scan: Add parameter to allow defering some actions in acpi_scan_check_and_detach. Date: Fri, 12 Apr 2024 15:37:07 +0100 [thread overview] Message-ID: <20240412143719.11398-7-Jonathan.Cameron@huawei.com> (raw) In-Reply-To: <20240412143719.11398-1-Jonathan.Cameron@huawei.com> Precursor patch adds the ability to pass a flag (not yet used) into acpi_scan_check_and detach(). Done in a separate patch with no functional changes to reduce complexity of the actual deferal which follows. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> --- v5: New patch resulting from rebase. - Internal review suggested we could also do this with flags so I'm looking for feedback on which option people find more readable. --- drivers/acpi/scan.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 7c157bf92695..79b1f4d2b6bd 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -244,13 +244,19 @@ 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) +struct acpi_scan_c_and_d_param { + bool check_status; + bool eject; +}; + +static int acpi_scan_check_and_detach(struct acpi_device *adev, void *p) { struct acpi_scan_handler *handler = adev->handler; + struct acpi_scan_c_and_d_param *param = 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 (param->check_status) { acpi_bus_get_status(adev); /* * Skip devices that are still there and take the enabled @@ -288,7 +294,11 @@ 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); + struct acpi_scan_c_and_d_param p = { + .check_status = true, /* Not update until after ej0 */ + .eject = false, + }; + acpi_scan_check_and_detach(adev, &p); } static int acpi_scan_hot_remove(struct acpi_device *device) @@ -2600,7 +2610,12 @@ EXPORT_SYMBOL(acpi_bus_scan); */ void acpi_bus_trim(struct acpi_device *adev) { - acpi_scan_check_and_detach(adev, NULL); + struct acpi_scan_c_and_d_param p = { + .check_status = false, + .eject = false, + }; + + acpi_scan_check_and_detach(adev, &p); } 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: <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> Cc: <linuxarm@huawei.com>, <justin.he@arm.com>, <jianyong.wu@arm.com> Subject: [PATCH v5 06/18] ACPI: scan: Add parameter to allow defering some actions in acpi_scan_check_and_detach. Date: Fri, 12 Apr 2024 15:37:07 +0100 [thread overview] Message-ID: <20240412143719.11398-7-Jonathan.Cameron@huawei.com> (raw) In-Reply-To: <20240412143719.11398-1-Jonathan.Cameron@huawei.com> Precursor patch adds the ability to pass a flag (not yet used) into acpi_scan_check_and detach(). Done in a separate patch with no functional changes to reduce complexity of the actual deferal which follows. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> --- v5: New patch resulting from rebase. - Internal review suggested we could also do this with flags so I'm looking for feedback on which option people find more readable. --- drivers/acpi/scan.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 7c157bf92695..79b1f4d2b6bd 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -244,13 +244,19 @@ 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) +struct acpi_scan_c_and_d_param { + bool check_status; + bool eject; +}; + +static int acpi_scan_check_and_detach(struct acpi_device *adev, void *p) { struct acpi_scan_handler *handler = adev->handler; + struct acpi_scan_c_and_d_param *param = 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 (param->check_status) { acpi_bus_get_status(adev); /* * Skip devices that are still there and take the enabled @@ -288,7 +294,11 @@ 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); + struct acpi_scan_c_and_d_param p = { + .check_status = true, /* Not update until after ej0 */ + .eject = false, + }; + acpi_scan_check_and_detach(adev, &p); } static int acpi_scan_hot_remove(struct acpi_device *device) @@ -2600,7 +2610,12 @@ EXPORT_SYMBOL(acpi_bus_scan); */ void acpi_bus_trim(struct acpi_device *adev) { - acpi_scan_check_and_detach(adev, NULL); + struct acpi_scan_c_and_d_param p = { + .check_status = false, + .eject = false, + }; + + acpi_scan_check_and_detach(adev, &p); } 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:[~2024-04-12 14:40 UTC|newest] Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-12 14:37 [PATCH v5 00/18] ACPI/arm64: add support for virtual cpu hotplug Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 01/18] cpu: Do not warn on arch_register_cpu() returning -EPROBE_DEFER Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 17:42 ` Rafael J. Wysocki 2024-04-12 17:42 ` Rafael J. Wysocki 2024-04-22 3:53 ` Gavin Shan 2024-04-22 3:53 ` Gavin Shan 2024-04-12 14:37 ` [PATCH v5 02/18] ACPI: processor: Set the ACPI_COMPANION for the struct cpu instance Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 18:10 ` Rafael J. Wysocki 2024-04-12 18:10 ` Rafael J. Wysocki 2024-04-15 15:48 ` Jonathan Cameron 2024-04-15 15:48 ` Jonathan Cameron 2024-04-15 16:16 ` Rafael J. Wysocki 2024-04-15 16:16 ` Rafael J. Wysocki 2024-04-15 16:19 ` Rafael J. Wysocki 2024-04-15 16:19 ` Rafael J. Wysocki 2024-04-15 16:50 ` Jonathan Cameron 2024-04-15 16:50 ` Jonathan Cameron 2024-04-15 17:34 ` Jonathan Cameron 2024-04-15 17:34 ` Jonathan Cameron 2024-04-15 17:41 ` Rafael J. Wysocki 2024-04-15 17:41 ` Rafael J. Wysocki 2024-04-16 17:35 ` Jonathan Cameron 2024-04-16 17:35 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 03/18] ACPI: processor: Register deferred CPUs from acpi_processor_get_info() Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 18:30 ` Rafael J. Wysocki 2024-04-12 18:30 ` Rafael J. Wysocki 2024-04-12 20:16 ` Russell King (Oracle) 2024-04-12 20:16 ` Russell King (Oracle) 2024-04-12 20:54 ` Thomas Gleixner 2024-04-12 20:54 ` Thomas Gleixner 2024-04-12 21:52 ` Russell King (Oracle) 2024-04-12 21:52 ` Russell King (Oracle) 2024-04-12 23:23 ` Thomas Gleixner 2024-04-12 23:23 ` Thomas Gleixner 2024-04-15 8:45 ` Jonathan Cameron 2024-04-15 8:45 ` Jonathan Cameron 2024-04-15 9:16 ` Jonathan Cameron 2024-04-15 9:16 ` Jonathan Cameron 2024-04-15 9:31 ` Jonathan Cameron 2024-04-15 9:31 ` Jonathan Cameron 2024-04-15 11:57 ` Jonathan Cameron 2024-04-15 11:57 ` Jonathan Cameron 2024-04-15 11:37 ` Rafael J. Wysocki 2024-04-15 11:37 ` Rafael J. Wysocki 2024-04-15 11:56 ` Jonathan Cameron 2024-04-15 11:56 ` Jonathan Cameron 2024-04-15 12:04 ` Rafael J. Wysocki 2024-04-15 12:04 ` Rafael J. Wysocki 2024-04-15 12:23 ` Jonathan Cameron 2024-04-15 12:23 ` Jonathan Cameron 2024-04-16 17:41 ` Jonathan Cameron 2024-04-16 17:41 ` Jonathan Cameron 2024-04-16 19:02 ` Rafael J. Wysocki 2024-04-16 19:02 ` Rafael J. Wysocki 2024-04-17 10:39 ` Jonathan Cameron 2024-04-17 10:39 ` Jonathan Cameron 2024-04-15 12:37 ` Salil Mehta 2024-04-15 12:37 ` Salil Mehta 2024-04-15 12:41 ` Rafael J. Wysocki 2024-04-15 12:41 ` Rafael J. Wysocki 2024-04-15 11:51 ` Salil Mehta 2024-04-15 11:51 ` Salil Mehta 2024-04-15 12:51 ` Rafael J. Wysocki 2024-04-15 12:51 ` Rafael J. Wysocki 2024-04-15 15:31 ` Salil Mehta 2024-04-15 15:31 ` Salil Mehta 2024-04-15 16:38 ` Rafael J. Wysocki 2024-04-15 16:38 ` Rafael J. Wysocki 2024-04-17 15:01 ` Salil Mehta 2024-04-17 15:01 ` Salil Mehta 2024-04-17 16:19 ` Rafael J. Wysocki 2024-04-17 16:19 ` Rafael J. Wysocki 2024-04-15 10:52 ` Jonathan Cameron 2024-04-15 10:52 ` Jonathan Cameron 2024-04-15 11:11 ` Jonathan Cameron 2024-04-15 11:11 ` Jonathan Cameron 2024-04-15 11:52 ` Rafael J. Wysocki 2024-04-15 11:52 ` Rafael J. Wysocki 2024-04-15 11:07 ` Salil Mehta 2024-04-15 11:07 ` Salil Mehta 2024-04-16 14:00 ` Jonathan Cameron 2024-04-16 14:00 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 04/18] ACPI: Rename acpi_processor_hotadd_init and remove pre-processor guards Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 05/18] ACPI: utils: Add an acpi_sta_enabled() helper and use it in acpi_processor_make_present() Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron [this message] 2024-04-12 14:37 ` [PATCH v5 06/18] ACPI: scan: Add parameter to allow defering some actions in acpi_scan_check_and_detach Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 07/18] ACPI: Add post_eject to struct acpi_scan_handler for cpu hotplug Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 08/18] ACPI: convert acpi_processor_post_eject() to use IS_ENABLED() Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 09/18] ACPI: Check _STA present bit before making CPUs not present Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 10/18] ACPI: Warn when the present bit changes but the feature is not enabled Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 11/18] arm64: acpi: Move get_cpu_for_acpi_id() to a header Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 12/18] irqchip/gic-v3: Don't return errors from gic_acpi_match_gicc() Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 13/18] irqchip/gic-v3: Add support for ACPI's disabled but 'online capable' CPUs Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 14/18] arm64: psci: Ignore DENIED CPUs Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 15/18] arm64: arch_register_cpu() variant to allow checking of ACPI _STA Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 16/18] ACPI: add support to (un)register CPUs based on the _STA enabled bit Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 17/18] arm64: document virtual CPU hotplug's expectations Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron 2024-04-12 14:37 ` [PATCH v5 18/18] cpumask: Add enabled cpumask for present CPUs that can be brought online Jonathan Cameron 2024-04-12 14:37 ` Jonathan Cameron
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