On 6/19/22 16:05, Javier Martinez Canillas wrote:
Hello Randy,
On 5/31/22 04:55, Randy Dunlap wrote:
Prevent a kconfig warning when MMU is not enabled by making DRM_HISI_HIBMC depend on MMU.
WARNING: unmet direct dependencies detected for DRM_TTM Depends on [n]: HAS_IOMEM [=y] && DRM [=m] && MMU [=n] Selected by [m]:
- DRM_TTM_HELPER [=m] && HAS_IOMEM [=y] && DRM [=m]
- DRM_HISI_HIBMC [=m] && HAS_IOMEM [=y] && DRM [=m] && PCI [=y] && (ARM64 || COMPILE_TEST [=y])
Fixes: 4f7f1973b0c8 ("drm/vram: fix Kconfig")
Actually this fixes isn't the correct one AFAICT, it should probably be either acad3fe650a5 ("drm/hisilicon: Removed the dependency on the mmu") or a0f25a6bb319 ("drm/hisilicon/hibmc: Allow to be built if COMPILE_TEST is enabled"). And those two commits should be mentioned in the description.
Maybe we can append the following two paragraphs to your commit message ?
The Kconfig symbol depended on MMU but that was dropped by commit acad3fe650a5 ("drm/hisilicon: Removed the dependency on the mmu") because it already had as a dependency ARM64 that already selects MMU.
But later, commit a0f25a6bb319 ("drm/hisilicon/hibmc: Allow to be built if COMPILE_TEST is enabled") allowed the driver to be built for non-ARM64 when the COMPILE_TEST is set but that could lead to unmet direct dependencies and linking errors.
If you agree with the changes, I can do it before applying. Please let me know.