diff mbox

net: vl: Move default_net to vl.c

Message ID 1463062636-22340-1-git-send-email-ehabkost@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Eduardo Habkost May 12, 2016, 2:17 p.m. UTC
All handling of defaults (default_* variables) is inside vl.c,
move default_net there too, so we can more easily refactor that
code later.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 include/net/net.h |  1 -
 net/net.c         | 23 -----------------------
 vl.c              | 24 +++++++++++++++++++++++-
 3 files changed, 23 insertions(+), 25 deletions(-)

Comments

Paolo Bonzini May 16, 2016, 3:21 p.m. UTC | #1
On 12/05/2016 16:17, Eduardo Habkost wrote:
> All handling of defaults (default_* variables) is inside vl.c,
> move default_net there too, so we can more easily refactor that
> code later.
> 
> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
> ---
>  include/net/net.h |  1 -
>  net/net.c         | 23 -----------------------
>  vl.c              | 24 +++++++++++++++++++++++-
>  3 files changed, 23 insertions(+), 25 deletions(-)
> 
> diff --git a/include/net/net.h b/include/net/net.h
> index 73e4c46..059a464 100644
> --- a/include/net/net.h
> +++ b/include/net/net.h
> @@ -178,7 +178,6 @@ struct NICInfo {
>  
>  extern int nb_nics;
>  extern NICInfo nd_table[MAX_NICS];
> -extern int default_net;
>  extern const char *host_net_devices[];
>  
>  /* from net.c */
> diff --git a/net/net.c b/net/net.c
> index 0ad6217..1680b68 100644
> --- a/net/net.c
> +++ b/net/net.c
> @@ -76,8 +76,6 @@ const char *host_net_devices[] = {
>      NULL,
>  };
>  
> -int default_net = 1;
> -
>  /***********************************************************/
>  /* network device redirectors */
>  
> @@ -1415,18 +1413,6 @@ void net_check_clients(void)
>      NetClientState *nc;
>      int i;
>  
> -    /* Don't warn about the default network setup that you get if
> -     * no command line -net or -netdev options are specified. There
> -     * are two cases that we would otherwise complain about:
> -     * (1) board doesn't support a NIC but the implicit "-net nic"
> -     * requested one
> -     * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
> -     * sets up a nic that isn't connected to anything.
> -     */
> -    if (default_net) {
> -        return;
> -    }
> -
>      net_hub_check_clients();
>  
>      QTAILQ_FOREACH(nc, &net_clients, next) {
> @@ -1483,14 +1469,6 @@ int net_init_clients(void)
>  {
>      QemuOptsList *net = qemu_find_opts("net");
>  
> -    if (default_net) {
> -        /* if no clients, we use a default config */
> -        qemu_opts_set(net, NULL, "type", "nic", &error_abort);
> -#ifdef CONFIG_SLIRP
> -        qemu_opts_set(net, NULL, "type", "user", &error_abort);
> -#endif
> -    }
> -
>      net_change_state_entry =
>          qemu_add_vm_change_state_handler(net_vm_change_state_handler, NULL);
>  
> @@ -1521,7 +1499,6 @@ int net_client_parse(QemuOptsList *opts_list, const char *optarg)
>          return -1;
>      }
>  
> -    default_net = 0;
>      return 0;
>  }
>  
> diff --git a/vl.c b/vl.c
> index 5fd22cb..56d7bc1 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -209,6 +209,7 @@ static int default_floppy = 1;
>  static int default_cdrom = 1;
>  static int default_sdcard = 1;
>  static int default_vga = 1;
> +static int default_net = 1;
>  
>  static struct {
>      const char *driver;
> @@ -3282,11 +3283,13 @@ int main(int argc, char **argv, char **envp)
>                  fd_bootchk = 0;
>                  break;
>              case QEMU_OPTION_netdev:
> +                default_net = 0;
>                  if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
>                      exit(1);
>                  }
>                  break;
>              case QEMU_OPTION_net:
> +                default_net = 0;
>                  if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
>                      exit(1);
>                  }
> @@ -4403,6 +4406,14 @@ int main(int argc, char **argv, char **envp)
>      /* clean up network at qemu process termination */
>      atexit(&net_cleanup);
>  
> +    if (default_net) {
> +        QemuOptsList *net = qemu_find_opts("net");
> +        qemu_opts_set(net, NULL, "type", "nic", &error_abort);
> +#ifdef CONFIG_SLIRP
> +        qemu_opts_set(net, NULL, "type", "user", &error_abort);
> +#endif
> +    }
> +
>      if (net_init_clients() < 0) {
>          exit(1);
>      }
> @@ -4547,7 +4558,18 @@ int main(int argc, char **argv, char **envp)
>      /* Did we create any drives that we failed to create a device for? */
>      drive_check_orphaned();
>  
> -    net_check_clients();
> +    /* Don't warn about the default network setup that you get if
> +     * no command line -net or -netdev options are specified. There
> +     * are two cases that we would otherwise complain about:
> +     * (1) board doesn't support a NIC but the implicit "-net nic"
> +     * requested one
> +     * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
> +     * sets up a nic that isn't connected to anything.
> +     */
> +    if (!default_net) {
> +        net_check_clients();
> +    }
> +
>  
>      if (boot_once) {
>          qemu_boot_set(boot_once, &error_fatal);
> 

Keeping magic confined to vl.c is always a nice improvement.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>

Paolo
Jason Wang May 18, 2016, 2:46 a.m. UTC | #2
On 2016?05?16? 23:21, Paolo Bonzini wrote:
>
> On 12/05/2016 16:17, Eduardo Habkost wrote:
>> All handling of defaults (default_* variables) is inside vl.c,
>> move default_net there too, so we can more easily refactor that
>> code later.
>>
>> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
>> ---
>>   include/net/net.h |  1 -
>>   net/net.c         | 23 -----------------------
>>   vl.c              | 24 +++++++++++++++++++++++-
>>   3 files changed, 23 insertions(+), 25 deletions(-)
>>
>> diff --git a/include/net/net.h b/include/net/net.h
>> index 73e4c46..059a464 100644
>> --- a/include/net/net.h
>> +++ b/include/net/net.h
>> @@ -178,7 +178,6 @@ struct NICInfo {
>>   
>>   extern int nb_nics;
>>   extern NICInfo nd_table[MAX_NICS];
>> -extern int default_net;
>>   extern const char *host_net_devices[];
>>   
>>   /* from net.c */
>> diff --git a/net/net.c b/net/net.c
>> index 0ad6217..1680b68 100644
>> --- a/net/net.c
>> +++ b/net/net.c
>> @@ -76,8 +76,6 @@ const char *host_net_devices[] = {
>>       NULL,
>>   };
>>   
>> -int default_net = 1;
>> -
>>   /***********************************************************/
>>   /* network device redirectors */
>>   
>> @@ -1415,18 +1413,6 @@ void net_check_clients(void)
>>       NetClientState *nc;
>>       int i;
>>   
>> -    /* Don't warn about the default network setup that you get if
>> -     * no command line -net or -netdev options are specified. There
>> -     * are two cases that we would otherwise complain about:
>> -     * (1) board doesn't support a NIC but the implicit "-net nic"
>> -     * requested one
>> -     * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
>> -     * sets up a nic that isn't connected to anything.
>> -     */
>> -    if (default_net) {
>> -        return;
>> -    }
>> -
>>       net_hub_check_clients();
>>   
>>       QTAILQ_FOREACH(nc, &net_clients, next) {
>> @@ -1483,14 +1469,6 @@ int net_init_clients(void)
>>   {
>>       QemuOptsList *net = qemu_find_opts("net");
>>   
>> -    if (default_net) {
>> -        /* if no clients, we use a default config */
>> -        qemu_opts_set(net, NULL, "type", "nic", &error_abort);
>> -#ifdef CONFIG_SLIRP
>> -        qemu_opts_set(net, NULL, "type", "user", &error_abort);
>> -#endif
>> -    }
>> -
>>       net_change_state_entry =
>>           qemu_add_vm_change_state_handler(net_vm_change_state_handler, NULL);
>>   
>> @@ -1521,7 +1499,6 @@ int net_client_parse(QemuOptsList *opts_list, const char *optarg)
>>           return -1;
>>       }
>>   
>> -    default_net = 0;
>>       return 0;
>>   }
>>   
>> diff --git a/vl.c b/vl.c
>> index 5fd22cb..56d7bc1 100644
>> --- a/vl.c
>> +++ b/vl.c
>> @@ -209,6 +209,7 @@ static int default_floppy = 1;
>>   static int default_cdrom = 1;
>>   static int default_sdcard = 1;
>>   static int default_vga = 1;
>> +static int default_net = 1;
>>   
>>   static struct {
>>       const char *driver;
>> @@ -3282,11 +3283,13 @@ int main(int argc, char **argv, char **envp)
>>                   fd_bootchk = 0;
>>                   break;
>>               case QEMU_OPTION_netdev:
>> +                default_net = 0;
>>                   if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
>>                       exit(1);
>>                   }
>>                   break;
>>               case QEMU_OPTION_net:
>> +                default_net = 0;
>>                   if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
>>                       exit(1);
>>                   }
>> @@ -4403,6 +4406,14 @@ int main(int argc, char **argv, char **envp)
>>       /* clean up network at qemu process termination */
>>       atexit(&net_cleanup);
>>   
>> +    if (default_net) {
>> +        QemuOptsList *net = qemu_find_opts("net");
>> +        qemu_opts_set(net, NULL, "type", "nic", &error_abort);
>> +#ifdef CONFIG_SLIRP
>> +        qemu_opts_set(net, NULL, "type", "user", &error_abort);
>> +#endif
>> +    }
>> +
>>       if (net_init_clients() < 0) {
>>           exit(1);
>>       }
>> @@ -4547,7 +4558,18 @@ int main(int argc, char **argv, char **envp)
>>       /* Did we create any drives that we failed to create a device for? */
>>       drive_check_orphaned();
>>   
>> -    net_check_clients();
>> +    /* Don't warn about the default network setup that you get if
>> +     * no command line -net or -netdev options are specified. There
>> +     * are two cases that we would otherwise complain about:
>> +     * (1) board doesn't support a NIC but the implicit "-net nic"
>> +     * requested one
>> +     * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
>> +     * sets up a nic that isn't connected to anything.
>> +     */
>> +    if (!default_net) {
>> +        net_check_clients();
>> +    }
>> +
>>   
>>       if (boot_once) {
>>           qemu_boot_set(boot_once, &error_fatal);
>>
> Keeping magic confined to vl.c is always a nice improvement.
>
> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
>
> Paolo
>

Applied to -net.

Thanks
diff mbox

Patch

diff --git a/include/net/net.h b/include/net/net.h
index 73e4c46..059a464 100644
--- a/include/net/net.h
+++ b/include/net/net.h
@@ -178,7 +178,6 @@  struct NICInfo {
 
 extern int nb_nics;
 extern NICInfo nd_table[MAX_NICS];
-extern int default_net;
 extern const char *host_net_devices[];
 
 /* from net.c */
diff --git a/net/net.c b/net/net.c
index 0ad6217..1680b68 100644
--- a/net/net.c
+++ b/net/net.c
@@ -76,8 +76,6 @@  const char *host_net_devices[] = {
     NULL,
 };
 
-int default_net = 1;
-
 /***********************************************************/
 /* network device redirectors */
 
@@ -1415,18 +1413,6 @@  void net_check_clients(void)
     NetClientState *nc;
     int i;
 
-    /* Don't warn about the default network setup that you get if
-     * no command line -net or -netdev options are specified. There
-     * are two cases that we would otherwise complain about:
-     * (1) board doesn't support a NIC but the implicit "-net nic"
-     * requested one
-     * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
-     * sets up a nic that isn't connected to anything.
-     */
-    if (default_net) {
-        return;
-    }
-
     net_hub_check_clients();
 
     QTAILQ_FOREACH(nc, &net_clients, next) {
@@ -1483,14 +1469,6 @@  int net_init_clients(void)
 {
     QemuOptsList *net = qemu_find_opts("net");
 
-    if (default_net) {
-        /* if no clients, we use a default config */
-        qemu_opts_set(net, NULL, "type", "nic", &error_abort);
-#ifdef CONFIG_SLIRP
-        qemu_opts_set(net, NULL, "type", "user", &error_abort);
-#endif
-    }
-
     net_change_state_entry =
         qemu_add_vm_change_state_handler(net_vm_change_state_handler, NULL);
 
@@ -1521,7 +1499,6 @@  int net_client_parse(QemuOptsList *opts_list, const char *optarg)
         return -1;
     }
 
-    default_net = 0;
     return 0;
 }
 
diff --git a/vl.c b/vl.c
index 5fd22cb..56d7bc1 100644
--- a/vl.c
+++ b/vl.c
@@ -209,6 +209,7 @@  static int default_floppy = 1;
 static int default_cdrom = 1;
 static int default_sdcard = 1;
 static int default_vga = 1;
+static int default_net = 1;
 
 static struct {
     const char *driver;
@@ -3282,11 +3283,13 @@  int main(int argc, char **argv, char **envp)
                 fd_bootchk = 0;
                 break;
             case QEMU_OPTION_netdev:
+                default_net = 0;
                 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
                     exit(1);
                 }
                 break;
             case QEMU_OPTION_net:
+                default_net = 0;
                 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
                     exit(1);
                 }
@@ -4403,6 +4406,14 @@  int main(int argc, char **argv, char **envp)
     /* clean up network at qemu process termination */
     atexit(&net_cleanup);
 
+    if (default_net) {
+        QemuOptsList *net = qemu_find_opts("net");
+        qemu_opts_set(net, NULL, "type", "nic", &error_abort);
+#ifdef CONFIG_SLIRP
+        qemu_opts_set(net, NULL, "type", "user", &error_abort);
+#endif
+    }
+
     if (net_init_clients() < 0) {
         exit(1);
     }
@@ -4547,7 +4558,18 @@  int main(int argc, char **argv, char **envp)
     /* Did we create any drives that we failed to create a device for? */
     drive_check_orphaned();
 
-    net_check_clients();
+    /* Don't warn about the default network setup that you get if
+     * no command line -net or -netdev options are specified. There
+     * are two cases that we would otherwise complain about:
+     * (1) board doesn't support a NIC but the implicit "-net nic"
+     * requested one
+     * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
+     * sets up a nic that isn't connected to anything.
+     */
+    if (!default_net) {
+        net_check_clients();
+    }
+
 
     if (boot_once) {
         qemu_boot_set(boot_once, &error_fatal);