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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1764774784; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PhI05pF6IiNH1T/8uXrCu7m/UgbQs5F2dVGNV2EikbM=; b=WZyO5DVE9xLHugb6vmST0Zy053PiSceeh/W/hj4psCqvEqtiVwI3rLEFJKJ0TiM5cKi8N8 AzVWQ9l1TF/j1TATFmwGTBG73rJMmgKbq7rtbOM6XKRY/sH/J4U4Q6bjl3zjU2LZC5FeS5 0LsVhbUco9q5fcwyGIQxq7w6CsfVex4= X-MC-Unique: 99REdMSXOQiFnO2meF5NLQ-1 X-Mimecast-MFC-AGG-ID: 99REdMSXOQiFnO2meF5NLQ_1764774780 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: John Levon , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Mark Cave-Ayland Subject: [PULL 3/6] vfio-user: clarify partial message handling Date: Wed, 3 Dec 2025 16:12:46 +0100 Message-ID: <20251203151249.2707207-4-clg@redhat.com> In-Reply-To: <20251203151249.2707207-1-clg@redhat.com> References: <20251203151249.2707207-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 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=clg@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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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: 1764775782955019200 From: John Levon Improve a comment for this. Signed-off-by: John Levon Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Mark Cave-Ayland Link: https://lore.kernel.org/qemu-devel/20251203100316.3604456-3-john.levo= n@nutanix.com Signed-off-by: C=C3=A9dric Le Goater --- hw/vfio-user/proxy.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/hw/vfio-user/proxy.c b/hw/vfio-user/proxy.c index 75845d7c89ecbc2534c6f1e3271d6a0dfff8e5cb..82c76c66654a1b7e03b281bdac5= f602846b33ac6 100644 --- a/hw/vfio-user/proxy.c +++ b/hw/vfio-user/proxy.c @@ -362,7 +362,10 @@ static int vfio_user_recv_one(VFIOUserProxy *proxy, Er= ror **errp) while (msgleft > 0) { ret =3D qio_channel_read(proxy->ioc, data, msgleft, errp); =20 - /* prepare to complete read on next iternation */ + /* + * We'll complete this read on the next go around; keep track of t= he + * partial message until then. + */ if (ret =3D=3D QIO_CHANNEL_ERR_BLOCK) { proxy->part_recv =3D msg; proxy->recv_left =3D msgleft; --=20 2.52.0