Thread (45 messages) 45 messages, 5 authors, 2013-09-12

[Xen-devel] [PATCH v5 02/13] arm: introduce a global dma_ops pointer

From: Julien Grall <hidden>
Date: 2013-09-02 14:45:18
Also in: linux-samsung-soc, lkml, xen-devel
Subsystem: samsung audio (asoc) drivers, sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers: Sylwester Nawrocki, Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds

On 08/29/2013 07:32 PM, Stefano Stabellini wrote:
quoted hunk ↗ jump to hunk
Initially set dma_ops to arm_dma_ops.


Signed-off-by: Stefano Stabellini <redacted>
Acked-by: Konrad Rzeszutek Wilk <redacted>
CC: will.deacon at arm.com
CC: linux at arm.linux.org.uk


Changes in v3:
-  keep using arm_dma_ops in dmabounce.
---
 arch/arm/include/asm/dma-mapping.h |    3 ++-
 arch/arm/mm/dma-mapping.c          |    3 +++
 2 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 0982206..7d6e4f9 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -13,6 +13,7 @@
 #include <asm/cacheflush.h>
 
 #define DMA_ERROR_CODE	(~0)
+extern struct dma_map_ops *dma_ops;
Hi,

I tried to build your swiotlb patch series for the Arndale. I have a compilation
error because dma_ops is already used in samsung sound driver (sound/soc/samsung/dma.c).

This small fix allow me to built this serie for the Arndale.
Do I need to send it separately?

=======================================================================
commit 73d4ceded87f52fa958b92d8d8d65be485e90857
Author: Julien Grall [off-list ref]
Date:   Mon Sep 2 15:36:35 2013 +0100

    ASoC: Samsung: Rename dma_ops by samsung_dma_ops
    
    The commit "arm: introduce a global dma_ops pointer" introduce compilation issue
    when CONFIG_SND_SOC_SAMSUNG is enabled.
    
    sound/soc/samsung/dma.c:345:27: error: conflicting types for 'dma_ops'
    /local/home/julien/works/arndale/linux/arch/arm/include/asm/dma-mapping.h:16:28:
    note: previous declaration of 'dma_ops' was here
    
    Signed-off-by: Julien Grall [off-list ref]
diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
index ddea134..c341603 100644
--- a/sound/soc/samsung/dma.c
+++ b/sound/soc/samsung/dma.c
@@ -342,7 +342,7 @@ static int dma_mmap(struct snd_pcm_substream *substream,
                                     runtime->dma_bytes);
 }
 
-static struct snd_pcm_ops dma_ops = {
+static struct snd_pcm_ops samsung_dma_ops = {
        .open           = dma_open,
        .close          = dma_close,
        .ioctl          = snd_pcm_lib_ioctl,
@@ -429,7 +429,7 @@ out:
 }
 
 static struct snd_soc_platform_driver samsung_asoc_platform = {
-       .ops            = &dma_ops,
+       .ops            = &samsung_dma_ops,
        .pcm_new        = dma_new,
        .pcm_free       = dma_free_dma_buffers,
 };
-- 
Julien Grall
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