Author: mmel
Date: Mon Nov 23 14:30:22 2020
New Revision: 367955
URL: https://svnweb.freebsd.org/changeset/base/367955
Log:
Ensure that the buffer is in nvme_single_map() mapped to single segment.
Not a functional change.
MFC after: 1 week
Modified:
head/sys/dev/nvme/nvme_private.h
Modified: head/sys/dev/nvme/nvme_private.h
==============================================================================
--- head/sys/dev/nvme/nvme_private.h Mon Nov 23 14:26:59 2020
(r367954)
+++ head/sys/dev/nvme/nvme_private.h Mon Nov 23 14:30:22 2020
(r367955)
@@ -478,6 +478,7 @@ nvme_single_map(void *arg, bus_dma_segment_t *seg, int
{
uint64_t *bus_addr = (uint64_t *)arg;
+ KASSERT(nseg == 1, ("number of segments (%d) is not 1", nseg));
if (error != 0)
printf("nvme_single_map err %d\n", error);
*bus_addr = seg[0].ds_addr;
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