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authorLv Zheng <lv.zheng@intel.com>2016-12-14 15:04:39 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-12-21 02:36:38 +0100
commit6b11d1d677132816252004426ef220ccd3c92d2f (patch)
treea512975fe6a4602264de5cbccd8926d0c121a0e6 /drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
parent66360faa4333babc53836c7b59a0cff68cb0a9c6 (diff)
downloadlinux-6b11d1d677132816252004426ef220ccd3c92d2f.tar.gz
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/gpu/drm/amd/amdgpu/amdgpu_bios.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
index 2b6afe123f3d..df6bf7379c7c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
@@ -300,8 +300,9 @@ static bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev)
GOP_VBIOS_CONTENT *vbios;
VFCT_IMAGE_HEADER *vhdr;
- if (!ACPI_SUCCESS(acpi_get_table_with_size("VFCT", 1, &hdr, &tbl_size)))
+ if (!ACPI_SUCCESS(acpi_get_table("VFCT", 1, &hdr)))
return false;
+ tbl_size = hdr->length;
if (tbl_size < sizeof(UEFI_ACPI_VFCT)) {
DRM_ERROR("ACPI VFCT table present but broken (too short #1)\n");
goto out_unmap;