[PATCH] dma-buf: fix build due to missing export

[Christian König]

That was an already known issue and I've just pushed a patch to fix it.

Christian.

Am 05.06.21 um 02:20 schrieb Lucas De Marchi:
> Commit 0c6b522abc2a ("dma-buf: cleanup dma-resv shared fence debugging a bit v2")
> turned dma_resv_reset_shared_max() into a function when
> CONFIG_DEBUG_MUTEXES is set, but forgot to export it. That resulted in a
> broken build:
>
> 	ERROR: modpost: "dma_resv_reset_shared_max" [drivers/gpu/drm/vgem/vgem.ko] undefined!
> 	ERROR: modpost: "dma_resv_reset_shared_max" [drivers/gpu/drm/i915/i915.ko] undefined!
> 	ERROR: modpost: "dma_resv_reset_shared_max" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!
> 	ERROR: modpost: "dma_resv_reset_shared_max" [drivers/gpu/drm/ttm/ttm.ko] undefined!
> 	ERROR: modpost: "dma_resv_reset_shared_max" [drivers/gpu/drm/drm.ko] undefined!
> 	ERROR: modpost: "dma_resv_reset_shared_max" [drivers/gpu/drm/drm_vram_helper.ko] undefined!
> 	make[1]: *** [scripts/Makefile.modpost:150: modules-only.symvers] Error 1
>
> Fixes: 0c6b522abc2a ("dma-buf: cleanup dma-resv shared fence debugging a bit v2")
> Cc: Christian König <christian.koenig at amd.com>
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Cc: Sumit Semwal <sumit.semwal at linaro.org>
> Cc: "Christian König" <christian.koenig at amd.com>
> Cc: linux-media at vger.kernel.org
> Cc: dri-devel at lists.freedesktop.org
> Cc: linaro-mm-sig at lists.linaro.org
> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
> ---
>   drivers/dma-buf/dma-resv.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
> index 3964df438505..6132ba631991 100644
> --- a/drivers/dma-buf/dma-resv.c
> +++ b/drivers/dma-buf/dma-resv.c
> @@ -226,6 +226,7 @@ void dma_resv_reset_shared_max(struct dma_resv *obj)
>   		fence->shared_max = fence->shared_count;
>   	}
>   }
> +EXPORT_SYMBOL(dma_resv_reset_shared_max);
>   #endif
>   
>   /**