diff options
| author | LiangCheng Wang <zaq14760@gmail.com> | 2025-10-28 10:55:38 +0800 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-11-06 13:47:29 +0100 |
| commit | b750f5a9d64df6cfe9103c7feb7314694318818d (patch) | |
| tree | c7358c17ff981e35bb2775e3b01c4b8fa7022f0b /net/unix/af_unix.c | |
| parent | 664ce10246ba00746af94a08b7fbda8ccaacd930 (diff) | |
drm/tiny: pixpaper: add explicit dependency on MMU
The DRM_GEM_SHMEM_HELPER helper requires MMU enabled because it uses
vmf_insert_pfn() in its mmap implementation. On NOMMU configurations
(e.g. some RISC-V randconfig builds), this symbol is unavailable and
selecting DRM_GEM_SHMEM_HELPER causes a modpost undefined reference:
ERROR: modpost: "vmf_insert_pfn" [drivers/gpu/drm/drm_shmem_helper.ko] undefined!
Normally, Kconfig prevents this helper from being selected when
CONFIG_MMU=n. However, in some randconfig builds (such as those used by
0day CI), select statements can override unmet dependencies, triggering
the issue.
Add an explicit dependency on MMU to DRM_PIXPAPER to prevent this.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510280213.0rlYA4T3-lkp@intel.com/
Fixes: 0c4932f6ddf8 ("drm/tiny: pixpaper: Fix missing dependency on DRM_GEM_SHMEM_HELPER")
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: LiangCheng Wang <zaq14760@gmail.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20251028-bar-v1-1-edfbd13fafff@gmail.com
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions