[libvirt] [PATCH] Fix undefined symbol error when macvtap support is disabled
Matthias Bolte
matthias.bolte at googlemail.com
Wed Dec 1 16:14:32 UTC 2010
2010/12/1 Eric Blake <eblake at redhat.com>:
> On 12/01/2010 08:34 AM, Matthias Bolte wrote:
>> Use macvtap specific functions depending on WITH_MACVTAP.
>>
>> Use #if instead of #ifdef to check for WITH_MACVTAP, because
>> WITH_MACVTAP is always defined with value 0 or 1.
>
> That, and #if undefined behaves the same as #if defined_as_0.
>
>>
>> Also export virVMOperationType{To|From}String unconditional,
>> because they are used unconditional in the domain config code.
>> ---
>> src/libvirt_macvtap.syms | 5 +++--
>> src/libvirt_private.syms | 5 +++++
>> src/qemu/qemu_driver.c | 4 ++++
>> src/util/macvtap.h | 19 +++++++++----------
>> 4 files changed, 21 insertions(+), 12 deletions(-)
>
> ACK.
>
>> +++ b/src/qemu/qemu_driver.c
>> @@ -11879,6 +11879,7 @@ cleanup:
>> return ret;
>> }
>>
>> +#if WITH_MACVTAP
>> static void
>> qemudVPAssociatePortProfiles(virDomainDefPtr def) {
>> int i;
>> @@ -11913,6 +11914,7 @@ err_exit:
>> }
>> }
>> }
>> +#endif /* WITH_MACVTAP */
>
> I would have done:
>
> #else /* !WITH_MACVTAP */
> # define qemudVPAssociatePortProfiles(ignored) /* */
> #endif
>
Okay, I folded this in before pushing as discussed on IRC:
#else /* !WITH_MACVTAP */
static void
qemudVPAssociatePortProfiles(virDomainDefPtr def ATTRIBUTE_UNUSED) { }
#endif
Matthias
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