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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-frv
parent18dabf473e15850c0dbc8ff13ac1e2806d542c15 (diff)
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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-frv')
-rw-r--r--include/asm-frv/scatterlist.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-frv/scatterlist.h b/include/asm-frv/scatterlist.h
index 53dade7..f7da007 100644
--- a/include/asm-frv/scatterlist.h
+++ b/include/asm-frv/scatterlist.h
@@ -22,6 +22,9 @@
* and that's it. There's no excuse for not highmem enabling YOUR driver. /jens
*/
struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+ unsigned long sg_magic;
+#endif
unsigned long page_link;
unsigned int offset; /* for highmem, page offset */