Le lundi 16 février 2026 à 11:17 -0500, Nicolas Dufresne a écrit :

Hi Nathan,

Le vendredi 13 février 2026 à 15:10 -0500, Nathan Chancellor a écrit :

quoted

Building rkvdec-vdpu383-h264.c can take a few hours to finish building
with Clang 20.1.0 or newer when compile testing for Hexagon. While this
is further investigated and understood on the LLVM side [1], disable
CONFIG_VIDEO_ROCKCHIP_VDEC when compile testing for Hexagon.

Link: https://github.com/llvm/llvm-project/issues/178535 [1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
 drivers/media/platform/rockchip/rkvdec/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/rockchip/rkvdec/Kconfig

b/drivers/media/platform/rockchip/rkvdec/Kconfig
index 5f3bdd848a2c..d03689464206 100644

--- a/drivers/media/platform/rockchip/rkvdec/Kconfig
+++ b/drivers/media/platform/rockchip/rkvdec/Kconfig

@@ -1,7 +1,8 @@

 # SPDX-License-Identifier: GPL-2.0
 config VIDEO_ROCKCHIP_VDEC
 	tristate "Rockchip Video Decoder driver"
-	depends on ARCH_ROCKCHIP || COMPILE_TEST
+	# !HEXAGON: https://github.com/llvm/llvm-project/issues/178535
+	depends on ARCH_ROCKCHIP || (COMPILE_TEST && !HEXAGON)

This is clearly not a pleasing change to make. As this specific data structure
and usage of bitfield has been discussed (along with the numerous issues in
clang/llvm around these). We also agreed to move away from bitfield for this
data structure and use a bitwriter. I would favour delaying this change to
give
devs the time to port instead. Ping again if nothing moves within few weeks.

best regards,
Nicolas

I haven't heard back about the port to plain bitwriter. I guess I have to pick
this patch, but I really don't want to have to maintain too many of these hacks.
Anyone else with an opinion on the topic ? Or a better idea how this can be
workaround differently ?

Nicolas

quoted

 	depends on VIDEO_DEV
 	select MEDIA_CONTROLLER
 	select VIDEOBUF2_DMA_CONTIG

---
base-commit: c824345288d11e269ce41b36c105715bc2286050
change-id: 20260213-media-disable-rockchip-vdec-hexagon-eb67c47292c5

Best regards,
--  
Nathan Chancellor [off-list ref]