linux-kernel - [PATCH] Staging: most: MOST and MOSTCORE should depend on HAS

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Date:	Tue,  1 Sep 2015 22:05:58 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Christian Gromm <christian.gromm@...rochip.com>
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH] Staging: most: MOST and MOSTCORE should depend on HAS_DMA

If NO_DMA=y:

    ERROR: "dma_free_coherent" [drivers/staging/most/mostcore/mostcore.ko] undefined!
    ERROR: "dma_alloc_coherent" [drivers/staging/most/mostcore/mostcore.ko] undefined!

As all MOST sub drivers use DMA functionality, add a dependency on
HAS_DMA to MOSTCORE, and to MOST, which selects MOSTCORE.

Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
 drivers/staging/most/Kconfig          | 1 +
 drivers/staging/most/mostcore/Kconfig | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/staging/most/Kconfig b/drivers/staging/most/Kconfig
index d50de03de7b98972..0b9b9b539f70562d 100644
--- a/drivers/staging/most/Kconfig
+++ b/drivers/staging/most/Kconfig
@@ -1,5 +1,6 @@
 menuconfig MOST
         tristate "MOST driver"
+	depends on HAS_DMA
         select MOSTCORE
         default n
         ---help---
diff --git a/drivers/staging/most/mostcore/Kconfig b/drivers/staging/most/mostcore/Kconfig
index 38abf1b21b6623c7..47172546d7280ee6 100644
--- a/drivers/staging/most/mostcore/Kconfig
+++ b/drivers/staging/most/mostcore/Kconfig
@@ -4,6 +4,7 @@
 
 config MOSTCORE
 	tristate "MOST Core"
+	depends on HAS_DMA
 
 	---help---
 	  Say Y here if you want to enable MOST support.
-- 
1.9.1

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