linux-kernel - [PATCH] dma-buf: cma_heap: Include linux/vmalloc.h to fix build failures on MIPS

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Message-Id: <20201216004931.113505-1-john.stultz@linaro.org>
Date:   Wed, 16 Dec 2020 00:49:31 +0000
From:   John Stultz <john.stultz@...aro.org>
To:     lkml <linux-kernel@...r.kernel.org>
Cc:     John Stultz <john.stultz@...aro.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Liam Mark <lmark@...eaurora.org>,
        Laura Abbott <labbott@...nel.org>,
        Brian Starkey <Brian.Starkey@....com>,
        Hridya Valsaraju <hridya@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Sandeep Patil <sspatil@...gle.com>,
        Daniel Mentz <danielmentz@...gle.com>,
        Chris Goldsworthy <cgoldswo@...eaurora.org>,
        Ørjan Eide <orjan.eide@....com>,
        Robin Murphy <robin.murphy@....com>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        Simon Ser <contact@...rsion.fr>,
        James Jones <jajones@...dia.com>, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH] dma-buf: cma_heap: Include linux/vmalloc.h to fix build failures on MIPS

We need to include <linux/vmalloc.h> in order for MIPS to find
vmap(), as it doesn't otherwise get included there.

Without this patch, one can hit the following build error:
  drivers/dma-buf/heaps/cma_heap.c: In function 'cma_heap_do_vmap':
  drivers/dma-buf/heaps/cma_heap.c:195:10: error: implicit declaration of function 'vmap'

Cc: Sumit Semwal <sumit.semwal@...aro.org>
Cc: Liam Mark <lmark@...eaurora.org>
Cc: Laura Abbott <labbott@...nel.org>
Cc: Brian Starkey <Brian.Starkey@....com>
Cc: Hridya Valsaraju <hridya@...gle.com>
Cc: Suren Baghdasaryan <surenb@...gle.com>
Cc: Sandeep Patil <sspatil@...gle.com>
Cc: Daniel Mentz <danielmentz@...gle.com>
Cc: Chris Goldsworthy <cgoldswo@...eaurora.org>
Cc: Ørjan Eide <orjan.eide@....com>
Cc: Robin Murphy <robin.murphy@....com>
Cc: Ezequiel Garcia <ezequiel@...labora.com>
Cc: Simon Ser <contact@...rsion.fr>
Cc: James Jones <jajones@...dia.com>
Cc: linux-media@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
Fixes: a5d2d29e24be ("dma-buf: heaps: Move heap-helper logic into the cma_heap implementation")
Reported-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
 drivers/dma-buf/heaps/cma_heap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c
index 5e7c3436310c..3c4e34301172 100644
--- a/drivers/dma-buf/heaps/cma_heap.c
+++ b/drivers/dma-buf/heaps/cma_heap.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
 
 
 struct cma_heap {
-- 
2.17.1