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authorThomas Gleixner <tglx@linutronix.de>2013-07-04 23:11:22 +0200
committerThomas Gleixner <tglx@linutronix.de>2013-07-04 23:11:22 +0200
commit2b0f89317e99735bbf32eaede81f707f98ab1b5e (patch)
tree16daa236e21876b11f1c0b9256cd4046aadba020 /include/linux/scatterlist.h
parent07bd1172902e782f288e4d44b1fde7dec0f08b6f (diff)
parentfa18f7bde3ad4568d1d343b60d963bfbd8dc3991 (diff)
Merge branch 'timers/posix-cpu-timers-for-tglx' of
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into timers/core Frederic sayed: "Most of these patches have been hanging around for several month now, in -mmotm for a significant chunk. They already missed a few releases." Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/scatterlist.h')
-rw-r--r--include/linux/scatterlist.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 5951e3f38878..26806775b11b 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -111,6 +111,9 @@ static inline struct page *sg_page(struct scatterlist *sg)
static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
unsigned int buflen)
{
+#ifdef CONFIG_DEBUG_SG
+ BUG_ON(!virt_addr_valid(buf));
+#endif
sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
}