Tentative fix for NVIDIA 470.223.02 driver for Linux 6.8-rc3

nvidia-470xx-fix-linux-6.8.patch

From a23d8d2c592028bc49570a6d3dcf75ee4aa0dde0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <[email protected]>
Date: Fri, 2 Feb 2024 19:19:04 +0000
Subject: [PATCH] Tentative fix for NVIDIA 470.223.02 driver for Linux 6.8-rc3

---
 nvidia-drm/nvidia-drm-drv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/nvidia-drm/nvidia-drm-drv.c b/nvidia-drm/nvidia-drm-drv.c
index 5ef557c..d271551 100644
--- a/nvidia-drm/nvidia-drm-drv.c
+++ b/nvidia-drm/nvidia-drm-drv.c
@@ -60,6 +60,7 @@
 #include <drm/drm_ioctl.h>
 #endif
 
+#include <linux/version.h>
 #include <linux/pci.h>
 
 /*
@@ -741,6 +742,13 @@ static const struct file_operations nv_drm_fops = {
     .llseek         = noop_llseek,
 };
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 8, 0)
+// Rel. commit. "drm: Remove locking for legacy ioctls and DRM_UNLOCKED" (Thomas Zimmermann, 22 Nov 2023)
+// Mock this flag, which was already useless on any recent kernel, since it
+// only did something if the driver set DRIVER_LEGACY in driver_features.
+static const enum drm_ioctl_flags DRM_UNLOCKED = 0;
+#endif
+
 static const struct drm_ioctl_desc nv_drm_ioctls[] = {
 #if defined(NV_DRM_ATOMIC_MODESET_AVAILABLE)
     DRM_IOCTL_DEF_DRV(NVIDIA_GEM_IMPORT_NVKMS_MEMORY,
-- 
2.43.0

@philmmanjaro I believe the NVIDIA 470.239.06 driver should build and work out of the box with Linux 6.8, i.e. you do not need any patch. This patch was only needed for older driver versions.