acpi_get_table_with_size() was exported with kernels >= 3.6. Revert the
size checking for kernels < 3.6.
Signed-off-by: Ozan Çağlayan <ozancag@xxxxxxxxx>
---
.../10-radeon-revert-acpi-table-size-check.patch | 29 ++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 patches/drm/10-radeon-revert-acpi-table-size-check.patch
diff --git a/patches/drm/10-radeon-revert-acpi-table-size-check.patch b/patches/drm/10-radeon-revert-acpi-table-size-check.patch
new file mode 100644
index 0000000..d595a98
--- /dev/null
+++ b/patches/drm/10-radeon-revert-acpi-table-size-check.patch
@@ -0,0 +1,29 @@
+acpi_get_table_with_size() was exported with kernels >= 3.6. Revert the
+size checking for kernels < 3.6.
+
+Index: compat-drivers/drivers/gpu/drm/radeon/radeon_bios.c
+===================================================================
+--- compat-drivers.orig/drivers/gpu/drm/radeon/radeon_bios.c
++++ compat-drivers/drivers/gpu/drm/radeon/radeon_bios.c
+@@ -554,12 +554,21 @@ static bool radeon_acpi_vfct_bios(struct
+ {
+ bool ret = false;
+ struct acpi_table_header *hdr;
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
+ acpi_size tbl_size;
++#else
++ /* acpi_get_table_with_size() not exported on kernels < 3.6 */
++ acpi_size tbl_size = 0x7fffffff;
++#endif
+ UEFI_ACPI_VFCT *vfct;
+ GOP_VBIOS_CONTENT *vbios;
+ VFCT_IMAGE_HEADER *vhdr;
+
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
+ if (!ACPI_SUCCESS(acpi_get_table_with_size("VFCT", 1, &hdr, &tbl_size)))
++#else
++ if (!ACPI_SUCCESS(acpi_get_table("VFCT", 1, &hdr)))
++#endif
+ return false;
+ if (tbl_size < sizeof(UEFI_ACPI_VFCT)) {
+ DRM_ERROR("ACPI VFCT table present but broken (too short #1)\n");
--
1.7.11.7
--
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