git: 0af5a0cd2788 - main - Hyper-V: storvsc: relax a kassert check

From: Wei Hu <whu_at_FreeBSD.org>
Date: Wed, 07 Sep 2022 15:17:39 UTC
The branch main has been updated by whu:

URL: https://cgit.FreeBSD.org/src/commit/?id=0af5a0cd2788efce9f444f4f781357d317bb0bb1

commit 0af5a0cd2788efce9f444f4f781357d317bb0bb1
Author:     Wei Hu <whu@FreeBSD.org>
AuthorDate: 2022-09-07 15:06:54 +0000
Commit:     Wei Hu <whu@FreeBSD.org>
CommitDate: 2022-09-07 15:06:54 +0000

    Hyper-V: storvsc: relax a kassert check
    
    On ARM64 this kassert check could cause unnecessary panic.
    
    Sponsored by:   Microsoft
---
 sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c b/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
index 4c9869887db6..d12d6a5982f6 100644
--- a/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
+++ b/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
@@ -1831,13 +1831,16 @@ storvsc_xferbuf_prepare(void *arg, bus_dma_segment_t *segs, int nsegs, int error
 	for (i = 0; i < nsegs; i++) {
 #ifdef INVARIANTS
 		if (nsegs > 1) {
+#if defined(__amd64__)
 			if (i == 0) {
 				KASSERT((segs[i].ds_addr & PAGE_MASK) +
 				    segs[i].ds_len == PAGE_SIZE,
 				    ("invalid 1st page, ofs 0x%jx, len %zu",
 				     (uintmax_t)segs[i].ds_addr,
 				     segs[i].ds_len));
-			} else if (i == nsegs - 1) {
+			} else
+#endif
+			if (i == nsegs - 1) {
 				KASSERT((segs[i].ds_addr & PAGE_MASK) == 0,
 				    ("invalid last page, ofs 0x%jx",
 				     (uintmax_t)segs[i].ds_addr));