2012-01-16 05:08:06

by Nikolay Martynov

Subject: [PATCH] Add dma_zalloc_coherent to fix build with kernels older than 3.2

Signed-off-by: Nikolay Martynov <[email protected]>
---
include/linux/compat-3.2.h | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/include/linux/compat-3.2.h b/include/linux/compat-3.2.h
index fb9ef68..a17c4ad 100644
--- a/include/linux/compat-3.2.h
+++ b/include/linux/compat-3.2.h
@@ -64,6 +64,15 @@ static inline char *hex_byte_pack(char *buf, u8 byte)
module_driver(__platform_driver, platform_driver_register, \
platform_driver_unregister)

+static inline void *dma_zalloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag)
+{
+ void *ret = dma_alloc_coherent(dev, size, dma_handle, flag);
+ if (ret)
+ memset(ret, 0, size);
+ return ret;
+}
+
#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3,2,0)) */

#endif /* LINUX_3_2_COMPAT_H */
--
1.7.4.1

2012-01-16 23:38:42

by Luis R. Rodriguez

Subject: Re: [PATCH] Add dma_zalloc_coherent to fix build with kernels older than 3.2

On Mon, Jan 16, 2012 at 12:07:55AM -0500, Nikolay Martynov wrote:
>
> Signed-off-by: Nikolay Martynov <[email protected]>

Applied and pushed, thanks!

Luis