Date: Thu, 13 Aug 2015 14:05:00 +0200 From: Stefano Garzarella <stefanogarzarella@gmail.com> To: freebsd-current <freebsd-current@freebsd.org>, freebsd-virtualization@freebsd.org Cc: Neel Natu <neel@freebsd.org>, Peter Grehan <grehan@freebsd.org> Subject: bhyve: fix bhyve warning CTASSERT Message-ID: <CAO0mX5aVtF6EjO=LMb4pfSzUtXweuhVPt85-iK%2BCCYP%2BO6Ue9A@mail.gmail.com>
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Hi all,
when I compile bhyve, I have the following errors from clang:
pci_emul.c:750:2: error: unused typedef '__assert750'
[-Werror,-Wunused-local-typedef]
CTASSERT(sizeof(struct msicap) == 14);
pci_emul.c:776:2: error: unused typedef '__assert776'
[-Werror,-Wunused-local-typedef]
CTASSERT(sizeof(struct msixcap) == 12);
pci_emul.c:928:2: error: unused typedef '__assert928'
[-Werror,-Wunused-local-typedef]
CTASSERT(sizeof(struct pciecap) == 60);
I fixed them in this simple way:
diff --git a/bhyverun.h b/bhyverun.h
index 87824ef..7ac3aa9 100644
--- a/bhyverun.h
+++ b/bhyverun.h
@@ -32,7 +32,8 @@
#ifndef CTASSERT /* Allow lint to override */
#define CTASSERT(x) _CTASSERT(x, __LINE__)
#define _CTASSERT(x, y) __CTASSERT(x, y)
-#define __CTASSERT(x, y) typedef char __assert ## y[(x) ? 1
: -1]
+#define __CTASSERT(x, y) typedef char __assert ## y[(x) ? 1
: -1] \
+ __unused
#endif
Cheers,
Stefano
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