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| author | Lv Zheng <lv.zheng@intel.com> | 2016-12-14 08:04:39 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-12-21 02:36:38 +0100 |
| commit | 6b11d1d677132816252004426ef220ccd3c92d2f (patch) | |
| tree | a512975fe6a4602264de5cbccd8926d0c121a0e6 /drivers/mailbox | |
| parent | ACPICA: Tables: Allow FADT to be customized with virtual address (diff) | |
| download | linux-6b11d1d677132816252004426ef220ccd3c92d2f.tar.xz linux-6b11d1d677132816252004426ef220ccd3c92d2f.zip | |
ACPI / osl: Remove acpi_get_table_with_size()/early_acpi_os_unmap_memory() users
This patch removes the users of the deprectated APIs:
acpi_get_table_with_size()
early_acpi_os_unmap_memory()
The following APIs should be used instead of:
acpi_get_table()
acpi_put_table()
The deprecated APIs are invented to be a replacement of acpi_get_table()
during the early stage so that the early mapped pointer will not be stored
in ACPICA core and thus the late stage acpi_get_table() won't return a
wrong pointer. The mapping size is returned just because it is required by
early_acpi_os_unmap_memory() to unmap the pointer during early stage.
But as the mapping size equals to the acpi_table_header.length
(see acpi_tb_init_table_descriptor() and acpi_tb_validate_table()), when
such a convenient result is returned, driver code will start to use it
instead of accessing acpi_table_header to obtain the length.
Thus this patch cleans up the drivers by replacing returned table size with
acpi_table_header.length, and should be a no-op.
Reported-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/mailbox')
| -rw-r--r-- | drivers/mailbox/pcc.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c index 08c87fadca8c..0661987fdc1a 100644 --- a/drivers/mailbox/pcc.c +++ b/drivers/mailbox/pcc.c @@ -446,7 +446,6 @@ static int pcc_parse_subspace_irq(int id, */ static int __init acpi_pcc_probe(void) { - acpi_size pcct_tbl_header_size; struct acpi_table_header *pcct_tbl; struct acpi_subtable_header *pcct_entry; struct acpi_table_pcct *acpi_pcct_tbl; @@ -455,9 +454,7 @@ static int __init acpi_pcc_probe(void) acpi_status status = AE_OK; /* Search for PCCT */ - status = acpi_get_table_with_size(ACPI_SIG_PCCT, 0, - &pcct_tbl, - &pcct_tbl_header_size); + status = acpi_get_table(ACPI_SIG_PCCT, 0, &pcct_tbl); if (ACPI_FAILURE(status) || !pcct_tbl) { pr_warn("PCCT header not found.\n"); |