linux-kernel - linux-next: build failure after merge of the char-misc tree

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Message-ID: <20211027154843.622961fd@canb.auug.org.au>
Date:   Wed, 27 Oct 2021 15:48:43 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Greg KH <greg@...ah.com>, Arnd Bergmann <arnd@...db.de>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the char-misc tree

Hi all,

After merging the char-misc tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

ERROR: modpost: module drm_shmem_helper uses symbol dma_buf_vunmap from namespace DMA_BUF, but does not import it.
ERROR: modpost: module drm_shmem_helper uses symbol dma_buf_mmap from namespace DMA_BUF, but does not import it.
ERROR: modpost: module drm_shmem_helper uses symbol dma_buf_vmap from namespace DMA_BUF, but does not import it.

Caused by commit

  16b0314aa746 ("dma-buf: move dma-buf symbols into the DMA_BUF module namespace")

I have applied the following patch for today.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 27 Oct 2021 15:44:18 +1100
Subject: [PATCH] fix for "dma-buf: move dma-buf symbols into the DMA_BUF
 module namespace"

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/gpu/drm/drm_gem_shmem_helper.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 57ceecb3f4d8..f7324582afe7 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -22,6 +22,8 @@
 #include <drm/drm_prime.h>
 #include <drm/drm_print.h>
 
+MODULE_IMPORT_NS(DMA_BUF);
+
 /**
  * DOC: overview
  *
-- 
2.33.0

-- 
Cheers,
Stephen Rothwell

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