From: Wei Liu <wl@xen.org>
To: Xen Development List <xen-devel@lists.xenproject.org>
Cc: "Wei Liu" <liuwe@microsoft.com>, "Wei Liu" <wl@xen.org>,
"Paul Durrant" <paul@xen.org>,
"Andrew Cooper" <andrew.cooper3@citrix.com>,
"Michael Kelley" <mikelley@microsoft.com>,
"Jan Beulich" <jbeulich@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>
Subject: [Xen-devel] [PATCH v2] x86/hyperv: change hv_tlb_flush_ex to fix clang build
Date: Mon, 23 Dec 2019 11:03:30 +0000 [thread overview]
Message-ID: <20191223110330.26883-1-liuwe@microsoft.com> (raw)
Clang complains:
In file included from synic.c:15:
/builds/xen-project/xen/xen/include/asm/guest/hyperv-tlfs.h:900:18: error: field 'hv_vp_set' with variable sized type 'struct hv_vpset' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end]
struct hv_vpset hv_vp_set;
^
1 error generated.
/builds/xen-project/xen/xen/Rules.mk:198: recipe for target 'synic.o' failed
make[6]: *** [synic.o] Error 1
Comment out the last variable size array from hv_tlb_flush_ex to fix
clang builds.
Signed-off-by: Wei Liu <liuwe@microsoft.com>
Cc: Paul Durrant <paul@xen.org>
---
xen/include/asm-x86/guest/hyperv-tlfs.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/include/asm-x86/guest/hyperv-tlfs.h b/xen/include/asm-x86/guest/hyperv-tlfs.h
index fe9fb232d0..5b43f99de8 100644
--- a/xen/include/asm-x86/guest/hyperv-tlfs.h
+++ b/xen/include/asm-x86/guest/hyperv-tlfs.h
@@ -908,12 +908,12 @@ struct hv_tlb_flush {
u64 gva_list[];
} __packed;
-/* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */
+/* HvFlushVirtualAddressSpaceEx hypercall */
struct hv_tlb_flush_ex {
u64 address_space;
u64 flags;
struct hv_vpset hv_vp_set;
- u64 gva_list[];
+ /* u64 gva_list[]; */
} __packed;
struct hv_partition_assist_pg {
--
2.20.1
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next reply other threads:[~2019-12-23 11:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-23 11:03 Wei Liu [this message]
2019-12-23 11:05 ` [Xen-devel] [PATCH v2] x86/hyperv: change hv_tlb_flush_ex to fix clang build Jan Beulich
2019-12-23 14:20 ` Paul Durrant
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