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Re: [Qemu-devel] [FreeBSD] Build Failure, qemu-char.c
From: |
Daniel P. Berrange |
Subject: |
Re: [Qemu-devel] [FreeBSD] Build Failure, qemu-char.c |
Date: |
Fri, 22 Jan 2016 17:02:33 +0000 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Fri, Jan 22, 2016 at 08:52:36AM -0800, Sean Bruno wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>
>
>
> On 01/22/16 08:47, Peter Maydell wrote:
>
> > This one is just straightforwardly BSD-only code that hasn't been
> > compile-tested.
> >
> >> qemu-char.c:4265:36: warning: incompatible pointer types passing
> >> 'ChardevCommon *' (aka 'struct ChardevCommon *') to parameter of
> >> type 'ChardevBackend *' (aka 'struct ChardevBackend *')
> >> [-Wincompatible-pointer-types] return qemu_chr_open_pp_fd(fd,
> >> common, errp); ^~~~~~ qemu-char.c:1838:61: note: passing argument
> >> to parameter 'backend' here ChardevBackend *backend,
> >
> > This one looks like it ought to build on Linux so you're probably
> > right about it being a clang-only thing. (We do build with clang on
> > OSX but I think there the CHARDEV_PARPORT code is not compiled
> > in.)
> >
> > thanks -- PMM
> >
>
> Yeah, this is smack in the middle of #ifdef (random BSD) here. It
> looks like a simple copy/paste error where "common" should have been
> "backend". Fixes the build failure, but still emits a cast warning.
> I think this is the intent of the changes however.
>
> index e133f4f..73eb10f 100644
> - --- a/qemu-char.c
> +++ b/qemu-char.c
> @@ -1840,7 +1840,7 @@ static CharDriverState *qemu_chr_open_pp_fd(int fd,
> {
> CharDriverState *chr;
>
> - - chr = qemu_chr_alloc(common, errp);
> + chr = qemu_chr_alloc(backend, errp);
> if (!chr) {
> return NULL;
> }
Close, but you need to change the type of the parameter too. Can you
test this for me
diff --git a/qemu-char.c b/qemu-char.c
index e133f4f..aa2e660 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -1835,12 +1835,12 @@ static int pp_ioctl(CharDriverState *chr, int cmd, void
*arg)
}
static CharDriverState *qemu_chr_open_pp_fd(int fd,
- ChardevBackend *backend,
+ ChardevCommon *backend,
Error **errp)
{
CharDriverState *chr;
- chr = qemu_chr_alloc(common, errp);
+ chr = qemu_chr_alloc(backend, errp);
if (!chr) {
return NULL;
}
If it solves it, i'll send a patch formally
Regards,
Daniel
--
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