[Qemu-devel] [PATCH v2] net/slirp: Tell the users when they are using deprecated options

[Thomas Huth <thuth@redhat.com>]

We don't want to support the legacy -tftp, -bootp, -smb and
-net channel options forever. So let's start telling the users
that they are deprecated and what option should be used instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 v2: Changed the texts to tell the users what options should be used instead.

 net/slirp.c | 3 +++
 os-posix.c  | 3 +++
 vl.c        | 6 ++++++
 3 files changed, 12 insertions(+)

diff --git a/net/slirp.c b/net/slirp.c
index f505570..eac4fc2 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -784,6 +784,9 @@ int net_slirp_parse_legacy(QemuOptsList *opts_list, const char *optarg, int *ret
         return 0;
     }
 
+    error_report("The '-net channel' option is deprecated. "
+                 "Please use '-netdev user,guestfwd=...' instead.");
+
     /* handle legacy -net channel,port:chr */
     optarg += strlen("channel,");
 
diff --git a/os-posix.c b/os-posix.c
index e4da406..87e2a16 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -40,6 +40,7 @@
 #include "net/slirp.h"
 #include "qemu-options.h"
 #include "qemu/rcu.h"
+#include "qemu/error-report.h"
 
 #ifdef CONFIG_LINUX
 #include <sys/prctl.h>
@@ -139,6 +140,8 @@ void os_parse_cmd_args(int index, const char *optarg)
     switch (index) {
 #ifdef CONFIG_SLIRP
     case QEMU_OPTION_smb:
+        error_report("The -smb option is deprecated. "
+                     "Please use '-netdev user,smb=...' instead.");
         if (net_slirp_smb(optarg) < 0)
             exit(1);
         break;
diff --git a/vl.c b/vl.c
index 5aaea77..71c4eee 100644
--- a/vl.c
+++ b/vl.c
@@ -3314,12 +3314,18 @@ int main(int argc, char **argv, char **envp)
 #endif
 #ifdef CONFIG_SLIRP
             case QEMU_OPTION_tftp:
+                error_report("The -tftp option is deprecated. "
+                             "Please use '-netdev user,tftp=...' instead.");
                 legacy_tftp_prefix = optarg;
                 break;
             case QEMU_OPTION_bootp:
+                error_report("The -bootp option is deprecated. "
+                             "Please use '-netdev user,bootfile=...' instead.");
                 legacy_bootp_filename = optarg;
                 break;
             case QEMU_OPTION_redir:
+                error_report("The -redir option is deprecated. "
+                             "Please use '-netdev user,hostfwd=...' instead.");
                 if (net_slirp_redir(optarg) < 0)
                     exit(1);
                 break;
-- 
1.8.3.1