From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 9640736B07C; Sat, 25 Apr 2026 18:17:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777141064; cv=none; b=m1q5hu+kxQxQkk+OEeV5rGMv5G1Aw6gkx0sTWQyp4DxQLSPvjjtl7TUWlHVtWqyYXXErHAxYoGNLY1aGi1rPvv4ZigTBwDsB4dpWDXyrUSJtNPUwvatDKqWdYCsmAHT9xCZS8TlkWFWy5Skqk16qj/8yDoXURy3fIRKniw55G+E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777141064; c=relaxed/simple; bh=6qobV4ULJMdaJ4oGjtsHpBOIHhgOU49sDdnmf/qUL3M=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=e6LweoJU3pQ808f/HoSHZ6rJxy5BC4UBg8w4dbGKDcJ8OID6lMdh5iNokwpfnFr7xfxcPkkY+IdHxGcIsh4uOOSU4oEYjEwpj8p4d7mPIi23SDgfUWy0suJjgSaY2lbTAFluMGHfY/2vbqJ1SjaW6+nys3eM5G7/kGgleoH1TJw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=qDCeBpWx; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="qDCeBpWx" Received: by linux.microsoft.com (Postfix, from userid 1216) id ADD5320B7165; Sat, 25 Apr 2026 11:17:42 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com ADD5320B7165 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1777141062; bh=nNYqv+mnIIySo0kNUnZOcffgMeHet80rqcnW+qxxHek=; h=From:To:Cc:Subject:Date:From; b=qDCeBpWxZRE1+JCx4ltYkGovaBNRhPzE2TzfMQUBHVYxgAZPokZIt5wgFVQHC423i euZwk37JMBhObzISmEwubaoEA3PQBxJDTz4tTqWljbTVJ3d3jY3OQM5/iZmfbNS2sq k33j5ipGYe6C1bqGMFgMZUxsgbFml8UZB20DtEBg= From: Hamza Mahfooz To: linux-kernel@vger.kernel.org Cc: "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Stefano Garzarella , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Himadri Pandya , Michael Kelley , linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev, netdev@vger.kernel.org, Saurabh Sengar , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Deepak Rawat , dri-devel@lists.freedesktop.org, Hamza Mahfooz , stable@kernel.vger.org Subject: [PATCH 1/2] hv_sock: fix ARM64 support Date: Sat, 25 Apr 2026 11:17:18 -0700 Message-ID: <20260425181719.1538483-1-hamzamahfooz@linux.microsoft.com> X-Mailer: git-send-email 2.43.7 Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit VMBUS ring buffers must be page aligned. Therefore, the current value of 24K presents a challenge on ARM64 kernels (with 64K pages). So, use VMBUS_RING_SIZE() to ensure they are always aligned and large enough to hold all of the relevant data. Cc: stable@kernel.vger.org Fixes: 77ffe33363c0 ("hv_sock: use HV_HYP_PAGE_SIZE for Hyper-V communication") Signed-off-by: Hamza Mahfooz --- net/vmw_vsock/hyperv_transport.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c index 069386a74557..40f09b23efa3 100644 --- a/net/vmw_vsock/hyperv_transport.c +++ b/net/vmw_vsock/hyperv_transport.c @@ -375,10 +375,10 @@ static void hvs_open_connection(struct vmbus_channel *chan) } else { sndbuf = max_t(int, sk->sk_sndbuf, RINGBUFFER_HVS_SND_SIZE); sndbuf = min_t(int, sndbuf, RINGBUFFER_HVS_MAX_SIZE); - sndbuf = ALIGN(sndbuf, HV_HYP_PAGE_SIZE); + sndbuf = VMBUS_RING_SIZE(sndbuf); rcvbuf = max_t(int, sk->sk_rcvbuf, RINGBUFFER_HVS_RCV_SIZE); rcvbuf = min_t(int, rcvbuf, RINGBUFFER_HVS_MAX_SIZE); - rcvbuf = ALIGN(rcvbuf, HV_HYP_PAGE_SIZE); + rcvbuf = VMBUS_RING_SIZE(rcvbuf); } chan->max_pkt_size = HVS_MAX_PKT_SIZE; -- 2.54.0