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authorDave Airlie <airlied@redhat.com>2025-12-02 18:09:01 +1000
committerDave Airlie <airlied@redhat.com>2025-12-02 18:09:08 +1000
commitb3239df349c2c2c94686674489c9629c89ca49a1 (patch)
tree5e6652ebbc602866122c26058dfb523a6f446169 /drivers/dma-buf/sw_sync.c
parent62433efe0b06042d8016ba0713d801165a939229 (diff)
parentdb2bad93fe206c95808b7a164a29424791728752 (diff)
Merge tag 'drm-misc-next-2025-12-01-1' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
Extra drm-misc-next for v6.19-rc1: UAPI Changes: - Add support for drm colorop pipeline. - Add COLOR PIPELINE plane property. - Add DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE. Cross-subsystem Changes: - Attempt to use higher order mappings in system heap allocator. - Always taint kernel with sw-sync. Core Changes: - Small fixes to drm/gem. - Support emergency restore to drm-client. - Allocate and release fb_info in single place. - Rework ttm pipelined eviction fence handling. Driver Changes: - Support the drm color pipeline in vkms, amdgfx. - Add NVJPG driver for tegra. - Assorted small fixes and updates to rockchip, bridge/dw-hdmi-qp, panthor. - Add ASL CS5263 DP-to-HDMI simple bridge. - Add and improve support for G LD070WX3-SL01 MIPI DSI, Samsung LTL106AL0, Samsung LTL106AL01, Raystar RFF500F-AWH-DNN, Winstar WF70A8SYJHLNGA, Wanchanglong w552946aaa, Samsung SOFEF00, Lenovo X13s panel. - Add support for it66122 to it66121. - Support mali-G1 gpu in panthor. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patch.msgid.link/aa5cbd50-7676-4a59-bbed-e8428af86804@linux.intel.com
Diffstat (limited to 'drivers/dma-buf/sw_sync.c')
-rw-r--r--drivers/dma-buf/sw_sync.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c
index 3c20f1d31cf5..6f09d13be6b6 100644
--- a/drivers/dma-buf/sw_sync.c
+++ b/drivers/dma-buf/sw_sync.c
@@ -8,6 +8,7 @@
#include <linux/file.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
+#include <linux/panic.h>
#include <linux/slab.h>
#include <linux/sync_file.h>
@@ -349,6 +350,9 @@ static long sw_sync_ioctl_create_fence(struct sync_timeline *obj,
struct sync_file *sync_file;
struct sw_sync_create_fence_data data;
+ /* SW sync fence are inherently unsafe and can deadlock the kernel */
+ add_taint(TAINT_SOFTLOCKUP, LOCKDEP_STILL_OK);
+
if (fd < 0)
return fd;