From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 894133AEB5C; Sat, 30 May 2026 17:53:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780163640; cv=none; b=ruryK+A4i/Nyrh26tG442NofCdxaqeM6wNFM5dP2Gf/T3UDH56PkuJW4YJaGO/BfhNXXzdNKD/N/r1JM88Jli4LfGHn63fIiBOFnl+brILbA+ZSiPE5DGuJLAVTflCyMDioVcRKgVXmCCy3iJx/NOhTQA411LafBq9tvjSJSgFU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780163640; c=relaxed/simple; bh=BLBYhwd31pcSv0NO9MJT1WEJjzooQv41JYMZwQywK6o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=b23JPJCv3B3fpVnD73Jp6AuFrOJHT8h9RZRhOzWMA0SQGLwUtkQmBYzYmd9biOTzGwRbcneFZfV5CHZBLx7zw41aLES6eWzs1zaIs/5iKxKE01ln6edFzpoiuU04QPeLmrxQ1JOt0XF53iGTYbH0IxDbhKu8hARv+OUZSeMoXeA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kAj8CQGz; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="kAj8CQGz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CEBBE1F00893; Sat, 30 May 2026 17:53:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780163639; bh=BRAbv0Wb6XI+/2qMeG51uhjE4oZMFkGKybUpkyoGQJs=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=kAj8CQGzJXvht8r9rwUh9HaJvbMBdhnp5mhGSemG6RRZo36beuOMXwZ2tgee4rn3e NklAX2ZsT/AI76XdN4Q+ELcUKh6hZVttUri5EF3b4xKWs/SncYUmUBVR9Aft00hNUa NE5ozFIhv2R/rb/YZx0+o23ug37CIkJGBjIl0xVw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dexuan Cui , Hamza Mahfooz , Stefano Garzarella , Jakub Kicinski Subject: [PATCH 5.15 318/776] hv_sock: fix ARM64 support Date: Sat, 30 May 2026 18:00:32 +0200 Message-ID: <20260530160248.786808857@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160240.228940103@linuxfoundation.org> References: <20260530160240.228940103@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hamza Mahfooz commit b31681206e3f527970a7c7ed807fbf6a028fc25b upstream. 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@vger.kernel.org Fixes: 77ffe33363c0 ("hv_sock: use HV_HYP_PAGE_SIZE for Hyper-V communication") Tested-by: Dexuan Cui Reviewed-by: Dexuan Cui Signed-off-by: Hamza Mahfooz Acked-by: Stefano Garzarella Link: https://patch.msgid.link/20260428125339.13963-1-hamzamahfooz@linux.microsoft.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/vmw_vsock/hyperv_transport.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/net/vmw_vsock/hyperv_transport.c +++ b/net/vmw_vsock/hyperv_transport.c @@ -366,10 +366,10 @@ static void hvs_open_connection(struct v } 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); } ret = vmbus_open(chan, sndbuf, rcvbuf, NULL, 0, hvs_channel_cb,