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authorMiklos Szeredi <mszeredi@redhat.com>2017-07-04 04:05:05 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2017-07-04 04:05:05 +0200
commit7f53b7d047d221b9fe38b9f2203bd4499135be88 (patch)
treef4832f5881522e80fba861bafe1e7c0cf136e291 /drivers/acpi/utils.c
parentfbaf94ee3cd5cfa85fe2d4d04be968820cb00556 (diff)
parentb86a496a42064e2a864bae31306e0c78eced2a3b (diff)
downloadlwn-7f53b7d047d221b9fe38b9f2203bd4499135be88.tar.gz
lwn-7f53b7d047d221b9fe38b9f2203bd4499135be88.zip
Merge tag 'uuid-for-4.13' of git://git.infradead.org/users/hch/uuid into overlayfs-next
UUID/GUID updates: - introduce the new uuid_t/guid_t types that are going to replace the somewhat confusing uuid_be/uuid_le types and make the terminology fit the various specs, as well as the userspace libuuid library. (me, based on a previous version from Amir) - consolidated generic uuid/guid helper functions lifted from XFS and libnvdimm (Amir and me) - conversions to the new types and helpers (Amir, Andy and me)
Diffstat (limited to 'drivers/acpi/utils.c')
-rw-r--r--drivers/acpi/utils.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 27d0dcfcf47d..b9d956c916f5 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -613,19 +613,19 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock)
/**
* acpi_evaluate_dsm - evaluate device's _DSM method
* @handle: ACPI device handle
- * @uuid: UUID of requested functions, should be 16 bytes
+ * @guid: GUID of requested functions, should be 16 bytes
* @rev: revision number of requested function
* @func: requested function number
* @argv4: the function specific parameter
*
- * Evaluate device's _DSM method with specified UUID, revision id and
+ * Evaluate device's _DSM method with specified GUID, revision id and
* function number. Caller needs to free the returned object.
*
* Though ACPI defines the fourth parameter for _DSM should be a package,
* some old BIOSes do expect a buffer or an integer etc.
*/
union acpi_object *
-acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func,
+acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 func,
union acpi_object *argv4)
{
acpi_status ret;
@@ -638,7 +638,7 @@ acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func,
params[0].type = ACPI_TYPE_BUFFER;
params[0].buffer.length = 16;
- params[0].buffer.pointer = (char *)uuid;
+ params[0].buffer.pointer = (u8 *)guid;
params[1].type = ACPI_TYPE_INTEGER;
params[1].integer.value = rev;
params[2].type = ACPI_TYPE_INTEGER;
@@ -666,7 +666,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm);
/**
* acpi_check_dsm - check if _DSM method supports requested functions.
* @handle: ACPI device handle
- * @uuid: UUID of requested functions, should be 16 bytes at least
+ * @guid: GUID of requested functions, should be 16 bytes at least
* @rev: revision number of requested functions
* @funcs: bitmap of requested functions
*
@@ -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, u64 rev, u64 funcs)
+bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs)
{
int i;
u64 mask = 0;
@@ -683,7 +683,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs)
if (funcs == 0)
return false;
- obj = acpi_evaluate_dsm(handle, uuid, rev, 0, NULL);
+ obj = acpi_evaluate_dsm(handle, guid, rev, 0, NULL);
if (!obj)
return false;
@@ -697,7 +697,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs)
/*
* Bit 0 indicates whether there's support for any functions other than
- * function 0 for the specified UUID and revision.
+ * function 0 for the specified GUID and revision.
*/
if ((mask & 0x1) && (mask & funcs) == funcs)
return true;