Re: [Qemu-devel] [PATCH v2 06/10] migration: Export tls.c functions in its own file

["Dr. David Alan Gilbert" <dgilbert@redhat.com>]

* Juan Quintela (quintela@redhat.com) wrote:
> Just for the functions exported from tls.c.  Notice that we can't
> remove the migration/migration.h include from tls.c because it access
> directly MigrationState for the tls params.
> 
> Signed-off-by: Juan Quintela <quintela@redhat.com>
> ---
>  include/migration/migration.h | 10 ----------
>  migration/channel.c           |  1 +
>  migration/migration.c         |  1 -
>  migration/tls.c               |  1 +
>  migration/tls.h               | 34 ++++++++++++++++++++++++++++++++++
>  5 files changed, 36 insertions(+), 11 deletions(-)
>  create mode 100644 migration/tls.h
> 
> diff --git a/include/migration/migration.h b/include/migration/migration.h
> index 9d311ed..29fda5b 100644
> --- a/include/migration/migration.h
> +++ b/include/migration/migration.h
> @@ -18,7 +18,6 @@
>  #include "qemu-common.h"
>  #include "qemu/thread.h"
>  #include "qemu/notify.h"
> -#include "io/channel.h"
>  #include "qapi-types.h"
>  #include "exec/cpu-common.h"
>  #include "qemu/coroutine_int.h"
> @@ -152,15 +151,6 @@ void migration_fd_process_incoming(QEMUFile *f);
>  
>  void qemu_start_incoming_migration(const char *uri, Error **errp);
>  
> -void migration_tls_channel_process_incoming(MigrationState *s,
> -                                            QIOChannel *ioc,
> -                                            Error **errp);
> -
> -void migration_tls_channel_connect(MigrationState *s,
> -                                   QIOChannel *ioc,
> -                                   const char *hostname,
> -                                   Error **errp);
> -
>  uint64_t migrate_max_downtime(void);
>  
>  void rdma_start_outgoing_migration(void *opaque, const char *host_port, Error **errp);
> diff --git a/migration/channel.c b/migration/channel.c
> index 2e78905cc..eae1d9e 100644
> --- a/migration/channel.c
> +++ b/migration/channel.c
> @@ -12,6 +12,7 @@
>  
>  #include "qemu/osdep.h"
>  #include "channel.h"
> +#include "tls.h"
>  #include "migration/migration.h"
>  #include "qemu-file-channel.h"
>  #include "trace.h"
> diff --git a/migration/migration.c b/migration/migration.c
> index f5140d2..6e11db2 100644
> --- a/migration/migration.c
> +++ b/migration/migration.c
> @@ -43,7 +43,6 @@
>  #include "exec/address-spaces.h"
>  #include "exec/target_page.h"
>  #include "io/channel-buffer.h"
> -#include "io/channel-tls.h"
>  #include "migration/colo.h"
>  
>  #define MAX_THROTTLE  (32 << 20)      /* Migration transfer speed throttling */
> diff --git a/migration/tls.c b/migration/tls.c
> index 34ad121..bae9aca 100644
> --- a/migration/tls.c
> +++ b/migration/tls.c
> @@ -21,6 +21,7 @@
>  #include "qemu/osdep.h"
>  #include "channel.h"
>  #include "migration/migration.h"
> +#include "tls.h"
>  #include "io/channel-tls.h"
>  #include "crypto/tlscreds.h"
>  #include "qemu/error-report.h"
> diff --git a/migration/tls.h b/migration/tls.h
> new file mode 100644
> index 0000000..cdd7000
> --- /dev/null
> +++ b/migration/tls.h
> @@ -0,0 +1,34 @@
> +/*
> + * QEMU migration TLS support
> + *
> + * Copyright (c) 2015 Red Hat, Inc.
> + *
> + * This library is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2 of the License, or (at your option) any later version.
> + *
> + * This library is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, see <http://www.gnu.org/licenses/>.
> + *
> + */

Can you clarify why this is LGPLv2 or later please?
Is this to follow the io/* rather than the migration/migration.h it came
out of.

Anyway, I did see Dan's post saying it was OK to update licenses, but
it's worth a comment in the commit message as to why.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>


Dave

> +
> +#ifndef QEMU_MIGRATION_TLS_H
> +#define QEMU_MIGRATION_TLS_H
> +
> +#include "io/channel.h"
> +
> +void migration_tls_channel_process_incoming(MigrationState *s,
> +                                            QIOChannel *ioc,
> +                                            Error **errp);
> +
> +void migration_tls_channel_connect(MigrationState *s,
> +                                   QIOChannel *ioc,
> +                                   const char *hostname,
> +                                   Error **errp);
> +#endif
> -- 
> 2.9.4
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK