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Use the preload_fetch_addr() and preload_fetch_size() convenience

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functions to obtain the address and size of the overriding DSDT.

Sponsored by: Juniper Networks.
This commit is contained in:
Marcel Moolenaar 2011-02-13 19:24:04 +00:00
parent fde6316272
commit efdb11cd58
1 changed files with 13 additions and 11 deletions
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24
sys/dev/acpica/Osd/OsdTable.c
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@ -68,29 +68,31 @@ AcpiOsTableOverride(ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable)
{
char modname[] = "acpi_dsdt";
caddr_t acpi_table, p, s;
caddr_t acpi_table;
ACPI_TABLE_HEADER *hdr;
size_t sz;
if (ExistingTable == NULL || NewTable == NULL)
return (AE_BAD_PARAMETER);
*NewTable = NULL;
#ifdef notyet
for (int i = 0; i < ACPI_NAME_SIZE; i++)
modname[i + 5] = tolower(ExistingTable->Signature[i]);
#else
/* If we're not overriding the DSDT, just return. */
if (strncmp(ExistingTable->Signature, ACPI_SIG_DSDT, ACPI_NAME_SIZE) != 0) {
*NewTable = NULL;
if (strncmp(ExistingTable->Signature, ACPI_SIG_DSDT, ACPI_NAME_SIZE) != 0)
return (AE_OK);
}
#endif
if ((acpi_table = preload_search_by_type(modname)) != NULL &&
(p = preload_search_info(acpi_table, MODINFO_ADDR)) != NULL &&
(s = preload_search_info(acpi_table, MODINFO_SIZE)) != NULL &&
*(size_t *)s != 0)
*NewTable = *(ACPI_TABLE_HEADER **)p;
else
*NewTable = NULL;
acpi_table = preload_search_by_type(modname);
if (acpi_table == NULL)
return (AE_OK);
hdr = preload_fetch_addr(acpi_table);
sz = preload_fetch_size(acpi_table);
if (hdr != NULL && sz != 0)
*NewTable = hdr;
return (AE_OK);
}