b750f5a9d6
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:
|
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| appletbdrm.c | ||
| arcpgu.c | ||
| bochs.c | ||
| cirrus-qemu.c | ||
| gm12u320.c | ||
| hx8357d.c | ||
| ili9163.c | ||
| ili9225.c | ||
| ili9341.c | ||
| ili9486.c | ||
| mi0283qt.c | ||
| panel-mipi-dbi.c | ||
| pixpaper.c | ||
| repaper.c | ||
| sharp-memory.c | ||