Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 06164f31 authored by Dan Williams's avatar Dan Williams
Browse files

async_tx: provide __async_inline for HAS_DMA=n archs 



To allow an async_tx routine to be compiled away on HAS_DMA=n arch it
needs to be declared __always_inline otherwise the compiler may emit
code and cause a link error.

Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 54aee6a5

crypto/async_tx/async_xor.c

+2 −5
Original line number Diff line number Diff line
@@ -30,11 +30,8 @@ 
#include <linux/raid/xor.h>

#include <linux/async_tx.h>



/* do_async_xor - dma map the pages and perform the xor with an engine.

 * 	This routine is marked __always_inline so it can be compiled away

 * 	when CONFIG_DMA_ENGINE=n

 */

static __always_inline struct dma_async_tx_descriptor *

/* do_async_xor - dma map the pages and perform the xor with an engine */

static __async_inline struct dma_async_tx_descriptor *

do_async_xor(struct dma_chan *chan, struct page *dest, struct page **src_list,

	     unsigned int offset, int src_cnt, size_t len,

	     enum async_tx_flags flags,

include/linux/async_tx.h

+9 −0
Original line number Diff line number Diff line
@@ -21,6 +21,15 @@ 
#include <linux/spinlock.h>

#include <linux/interrupt.h>



/* on architectures without dma-mapping capabilities we need to ensure

 * that the asynchronous path compiles away

 */

#ifdef CONFIG_HAS_DMA

#define __async_inline

#else

#define __async_inline __always_inline

#endif



/**

 * dma_chan_ref - object used to manage dma channels received from the

 *   dmaengine core.