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authorJens Axboe <jens.axboe@oracle.com>2007-10-22 20:01:06 +0200
committerJens Axboe <jens.axboe@oracle.com>2007-10-22 21:20:03 +0200
commitd6ec084200c37683278c821338f74ddf21ab80f5 (patch)
tree931a112061e3a861768384b8b6ea20fdd35bd41b /include/asm-sh/scatterlist.h
parent18dabf473e15850c0dbc8ff13ac1e2806d542c15 (diff)
downloadop-kernel-dev-d6ec084200c37683278c821338f74ddf21ab80f5.zip
op-kernel-dev-d6ec084200c37683278c821338f74ddf21ab80f5.tar.gz
Add CONFIG_DEBUG_SG sg validation
Add a Kconfig entry which will toggle some sanity checks on the sg entry and tables. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/asm-sh/scatterlist.h')
-rw-r--r--include/asm-sh/scatterlist.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-sh/scatterlist.h b/include/asm-sh/scatterlist.h
index bc7c809..a7d0d18 100644
--- a/include/asm-sh/scatterlist.h
+++ b/include/asm-sh/scatterlist.h
@@ -4,6 +4,9 @@
#include <asm/types.h>
struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+ unsigned long sg_magic;
+#endif
unsigned long page_link;
unsigned int offset;/* for highmem, page offset */
dma_addr_t dma_address;
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