Re: [PATCH] drm: Fix DYNAMIC_DEBUG_MODULE propagation to subdirectories

[Louis Chauvet <louis.chauvet@bootlin.com>]

On 4/20/26 18:04, Sean Paul wrote:
> From: Sean Paul <seanpaul@google.com>
> 
> Switch incompatible CFLAGS-y to ccflags-* and propagate the flag
> to subdirectories to avoid implicit declaration errors for
> _dynamic_func_call_cls when DRM_USE_DYNAMIC_DEBUG is enabled.
> 
> Note that this flag is still disabled due to depends on BROKEN.
> 
> Fixes: 84ec67288c10 ("drm_print: wrap drm_*_dbg in dyndbg descriptor factory macro")
> Signed-off-by: Sean Paul <seanpaul@google.com>

Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>

> ---
> 
> a wild seanpaul appears...
> 
>   drivers/gpu/drm/Makefile | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
> index e97faabcd783..7082ff6449fb 100644
> --- a/drivers/gpu/drm/Makefile
> +++ b/drivers/gpu/drm/Makefile
> @@ -3,7 +3,8 @@
>   # Makefile for the drm device driver.  This driver provides support for the
>   # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>   
> -CFLAGS-$(CONFIG_DRM_USE_DYNAMIC_DEBUG)	+= -DDYNAMIC_DEBUG_MODULE
> +ccflags-$(CONFIG_DRM_USE_DYNAMIC_DEBUG)	+= -DDYNAMIC_DEBUG_MODULE
> +subdir-ccflags-$(CONFIG_DRM_USE_DYNAMIC_DEBUG)	+= -DDYNAMIC_DEBUG_MODULE
>   
>   # Unconditionally enable W=1 warnings locally
>   # --- begin copy-paste W=1 warnings from scripts/Makefile.warn