linux-kernel - [PATCH] media: staging: tegra-vde: select DMA_SHARED

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Message-Id: <20180105094343.2813148-1-arnd@arndb.de>
Date:   Fri,  5 Jan 2018 10:43:27 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Dmitry Osipenko <digetx@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        linux-media@...r.kernel.org, linux-tegra@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] media: staging: tegra-vde: select DMA_SHARED_BUFFER

Without CONFIG_DMA_SHARED_BUFFER we run into a link error for the
dma_buf_* APIs:

ERROR: "dma_buf_map_attachment" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_attach" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_get" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_put" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_detach" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!
ERROR: "dma_buf_unmap_attachment" [drivers/staging/media/tegra-vde/tegra-vde.ko] undefined!

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/staging/media/tegra-vde/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/media/tegra-vde/Kconfig b/drivers/staging/media/tegra-vde/Kconfig
index ec3ddddebdaa..5c4914674468 100644
--- a/drivers/staging/media/tegra-vde/Kconfig
+++ b/drivers/staging/media/tegra-vde/Kconfig
@@ -1,6 +1,7 @@
 config TEGRA_VDE
 	tristate "NVIDIA Tegra Video Decoder Engine driver"
 	depends on ARCH_TEGRA || COMPILE_TEST
+	select DMA_SHARED_BUFFER
 	select SRAM
 	help
 	    Say Y here to enable support for the NVIDIA Tegra video decoder
-- 
2.9.0