This is a note to let you know that I've just added the patch titled
drm/amd/display: fix graphics_object_id size
to the 6.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-fix-graphics_object_id-size.patch
and it can be found in the queue-6.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e15b11bb22e02af06329c43248f0b279030ab967
Author: Arnd Bergmann <arnd@xxxxxxxx>
Date: Tue May 28 13:51:19 2024 +0200
drm/amd/display: fix graphics_object_id size
[ Upstream commit 6d438caaeaa1a7fae7b523e7bc4cee262b9f101a ]
The graphics_object_id structure is meant to fit into 32 bits, as it's
passed by value in and out of functions. A recent change increased
the size to 128 bits, so it's now always passed by reference, which
is clearly not intended and ends up producing a compile-time warning:
drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_factory.c: In function 'construct_phy':
drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_factory.c:743:1: error: the frame size of 1040 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Add back the bitfields to revert to the original size, while keeping
the 'enum' type change.
Fixes: fec85f995a4b ("drm/amd/display: Fix compiler redefinition warnings for certain configs")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/include/grph_object_id.h b/drivers/gpu/drm/amd/display/include/grph_object_id.h
index 08ee0350b31fb..54e33062b3c02 100644
--- a/drivers/gpu/drm/amd/display/include/grph_object_id.h
+++ b/drivers/gpu/drm/amd/display/include/grph_object_id.h
@@ -226,8 +226,8 @@ enum dp_alt_mode {
struct graphics_object_id {
uint32_t id:8;
- enum object_enum_id enum_id;
- enum object_type type;
+ enum object_enum_id enum_id :4;
+ enum object_type type :4;
uint32_t reserved:16; /* for padding. total size should be u32 */
};
