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bh=b6zLyjzW2coplxQWhNEa5xZCZZqJPHDht9T2ys6BfN0=; b=FwdDmIGdnfjHFv/z8GFJJ824ZUvH3Lg5eUc3GUwys8xSVLsViJ0XV184wShpQ7sqH9KUCC Eek/nC6AhfJCBLTl621PqhMx2N5Zc5oQqWLzaVvnWnjnTofqTNrXH32KxQhC7OqSrRQ2b7 eqjwTAB/zTuwXSJWRm3WeEzy8pOCzeE= X-MC-Unique: NMAK7mB9OsKWRimPtgmHeQ-1 From: Jason Wang To: peter.maydell@linaro.org Cc: qemu-devel@nongnu.org, Thomas Huth , Jason Wang Subject: [PULL V3 2/9] net: Restore printing of the help text with "-nic help" Date: Fri, 17 Feb 2023 13:43:28 +0800 Message-Id: <20230217054335.57595-3-jasowang@redhat.com> In-Reply-To: <20230217054335.57595-1-jasowang@redhat.com> References: <20230217054335.57595-1-jasowang@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1676612718238100003 Content-Type: text/plain; charset="utf-8" From: Thomas Huth Running QEMU with "-nic help" used to work in QEMU 5.2 and earlier versions (it showed the available netdev backends), but this feature got broken duri= ng some refactoring in version 6.0. Let's restore the old behavior, and while we're at it, let's also print the available NIC models here now since this option can be used to configure both, netdev backend and model in one go. Fixes: ad6f932fe8 ("net: do not exit on "netdev_add help" monitor command") Signed-off-by: Thomas Huth Signed-off-by: Jason Wang --- net/net.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/net/net.c b/net/net.c index 476a4b7..e8cd95c 100644 --- a/net/net.c +++ b/net/net.c @@ -1542,8 +1542,18 @@ static int net_param_nic(void *dummy, QemuOpts *opts= , Error **errp) const char *type; =20 type =3D qemu_opt_get(opts, "type"); - if (type && g_str_equal(type, "none")) { - return 0; /* Nothing to do, default_net is cleared in vl.c */ + if (type) { + if (g_str_equal(type, "none")) { + return 0; /* Nothing to do, default_net is cleared in vl.c = */ + } + if (is_help_option(type)) { + GPtrArray *nic_models =3D qemu_get_nic_models(TYPE_DEVICE); + show_netdevs(); + printf("\n"); + qemu_show_nic_models(type, (const char **)nic_models->pdata); + g_ptr_array_free(nic_models, true); + exit(0); + } } =20 idx =3D nic_get_free_idx(); --=20 2.7.4