From c68ae33e7fb4a010f9a48af3e4b87089dca96551 Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Thu, 24 Mar 2016 13:15:20 +0100 Subject: ACPI / utils: Rename acpi_dev_present() acpi_dev_present() was originally named after pci_dev_present() to signify the similarity of the two functions. However Rafael J. Wysocki pointed out that the exported function acpi_dev_present() is easily confused with the non-exported acpi_device_is_present(). Additionally in ACPI parlance the term "present" usually refers to the "device is present" bit returned by the _STA control method, yet acpi_dev_present() merely checks presence in the namespace. It does not invoke _STA at all, let alone check the "device is present" bit. As suggested by Rafael, rename the function to acpi_dev_found() and adjust all existing call sites. Signed-off-by: Lukas Wunner Signed-off-by: Rafael J. Wysocki --- drivers/acpi/utils.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/acpi/utils.c') diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 050673f0c0b3..ac832bf6f8c9 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -707,7 +707,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs) EXPORT_SYMBOL(acpi_check_dsm); /** - * acpi_dev_present - Detect presence of a given ACPI device in the system. + * acpi_dev_found - Detect presence of a given ACPI device in the namespace. * @hid: Hardware ID of the device. * * Return %true if the device was present at the moment of invocation. @@ -719,7 +719,7 @@ EXPORT_SYMBOL(acpi_check_dsm); * instead). Calling from module_init() is fine (which is synonymous * with device_initcall()). */ -bool acpi_dev_present(const char *hid) +bool acpi_dev_found(const char *hid) { struct acpi_device_bus_id *acpi_device_bus_id; bool found = false; @@ -734,7 +734,7 @@ bool acpi_dev_present(const char *hid) return found; } -EXPORT_SYMBOL(acpi_dev_present); +EXPORT_SYMBOL(acpi_dev_found); /* * acpi_backlight= handling, this is done here rather then in video_detect.c -- cgit v1.2.3 From c7e16e5257ec46530e3e874af38191746c137c83 Mon Sep 17 00:00:00 2001 From: Jerry Hoemann Date: Mon, 11 Apr 2016 15:02:26 -0700 Subject: acpi: widen acpi_evaluate_dsm() revision and function-index arguments The ACPI specification states that arguments "Revision ID" and "Function Index" to a _DSM are type "Integer." Type Integers are 64 bit quantities. The function evaluate_dsm specifies these types as simple "int" which are 32 bits. Widen type passed to acpi_evaluate_dsm and its callers and derived callers to pass correct type. acpi_check_dsm and acpi_evaluate_dsm_typed had similar issue and were corrected as well. This is in preparation for libnvdimm implementing a generic _DSM passthrough facility to have the capacity to pass 64-bit values as the ACPI specification allows. [djbw: clarify the changelog, add rationale] Signed-off-by: Jerry Hoemann Acked-by: Rafael J. Wysocki Signed-off-by: Dan Williams --- drivers/acpi/utils.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/acpi/utils.c') diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 050673f0c0b3..e854dea7d5fe 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -625,7 +625,7 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock) * some old BIOSes do expect a buffer or an integer etc. */ union acpi_object * -acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, int rev, int func, +acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func, union acpi_object *argv4) { acpi_status ret; @@ -674,7 +674,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm); * functions. Currently only support 64 functions at maximum, should be * enough for now. */ -bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs) +bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs) { int i; u64 mask = 0; -- cgit v1.2.3