6.12-stable review patch. If anyone has any objections, please let me know.
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From: Janne Grunau j@jannau.net
commit 32dce6b1949a696dc7abddc04de8cbe35c260217 upstream.
Using "depends on" and "select" for the same Kconfig symbol is known to cause circular dependencies (cmp. "Kconfig recursive dependency limitations" in Documentation/kbuild/kconfig-language.rst. DRM drivers are selecting drm helpers so do the same for DRM_DEBUG_DP_MST_TOPOLOGY_REFS. Fixes following circular dependency reported on x86 for the downstream Asahi Linux tree:
error: recursive dependency detected! symbol DRM_KMS_HELPER is selected by DRM_GEM_SHMEM_HELPER symbol DRM_GEM_SHMEM_HELPER is selected by RUST_DRM_GEM_SHMEM_HELPER symbol RUST_DRM_GEM_SHMEM_HELPER is selected by DRM_ASAHI symbol DRM_ASAHI depends on RUST symbol RUST depends on CALL_PADDING symbol CALL_PADDING depends on OBJTOOL symbol OBJTOOL is selected by STACK_VALIDATION symbol STACK_VALIDATION depends on UNWINDER_FRAME_POINTER symbol UNWINDER_FRAME_POINTER is part of choice block at arch/x86/Kconfig.debug:224 symbol <choice> unknown is visible depending on UNWINDER_GUESS symbol UNWINDER_GUESS prompt is visible depending on STACKDEPOT symbol STACKDEPOT is selected by DRM_DEBUG_DP_MST_TOPOLOGY_REFS symbol DRM_DEBUG_DP_MST_TOPOLOGY_REFS depends on DRM_KMS_HELPER
Fixes: 12a280c72868 ("drm/dp_mst: Add topology ref history tracking for debugging") Cc: stable@vger.kernel.org Signed-off-by: Janne Grunau j@jannau.net Acked-by: Thomas Zimmermann tzimmermann@suse.de Link: https://lore.kernel.org/r/20250304-drm_debug_dp_mst_topo_kconfig-v1-1-e16fd1... Signed-off-by: Alyssa Rosenzweig alyssa@rosenzweig.io Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -185,7 +185,7 @@ config DRM_DEBUG_DP_MST_TOPOLOGY_REFS bool "Enable refcount backtrace history in the DP MST helpers" depends on STACKTRACE_SUPPORT select STACKDEPOT - depends on DRM_KMS_HELPER + select DRM_KMS_HELPER depends on DEBUG_KERNEL depends on EXPERT help