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path: root/patches/collateral-evolutions/drm/10-radeon-revert-acpi-table-size-check/drivers_gpu_drm_radeon_radeon_bios.patch
blob: 1bca6e827b3cf3f0cdc4201e2e5c7e0fb15a00b1 (plain)
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--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -554,12 +554,21 @@
 {
 	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");