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    Subject[ 59/95] drm/radeon: convert radeon vfct code to use acpi_get_table_with_size
    3.2-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Alex Deucher <alexander.deucher@amd.com>

    commit 7c3906d04a4587dceaa78cc1ae6b14e6454ee02a upstream.

    Allows us to verify the table size.

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
    ---
    drivers/gpu/drm/radeon/radeon_bios.c | 6 ++----
    1 file changed, 2 insertions(+), 4 deletions(-)

    diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
    index a32232f..ab0b2f7 100644
    --- a/drivers/gpu/drm/radeon/radeon_bios.c
    +++ b/drivers/gpu/drm/radeon/radeon_bios.c
    @@ -482,13 +482,12 @@ static bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
    {
    bool ret = false;
    struct acpi_table_header *hdr;
    - /* acpi_get_table_with_size is not exported :( */
    - acpi_size tbl_size = 0x7fffffff;
    + acpi_size tbl_size;
    UEFI_ACPI_VFCT *vfct;
    GOP_VBIOS_CONTENT *vbios;
    VFCT_IMAGE_HEADER *vhdr;

    - if (!ACPI_SUCCESS(acpi_get_table("VFCT", 1, &hdr)))
    + if (!ACPI_SUCCESS(acpi_get_table_with_size("VFCT", 1, &hdr, &tbl_size)))
    return false;
    if (tbl_size < sizeof(UEFI_ACPI_VFCT)) {
    DRM_ERROR("ACPI VFCT table present but broken (too short #1)\n");
    @@ -525,7 +524,6 @@ static bool radeon_acpi_vfct_bios(struct radeon_device *rdev)
    ret = !!rdev->bios;

    out_unmap:
    - /* uh, no idea what to do here... */
    return ret;
    }
    #else



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