From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f44.google.com (mail-wr1-f44.google.com [209.85.221.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F5DE25CC64 for ; Thu, 28 Aug 2025 09:38:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756373898; cv=none; b=CxwKZvcNuqW+ecreHDd26rMDigmxZvM/sIs+t44V3WDCzcdVvwrkNsM2vxFOdj8aBOZuqwTxCtmxTZptr6fCTT5QZeWswew3cgMdO68Lx+mIlCB44fRCFWe/yZ1lP9BN+lnH/yKm7zjI/OR2wcFBeytTIX/+HHKIV9A6/mOHpaw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756373898; c=relaxed/simple; bh=9CihXvK8I2dPvot5dktr69KT/dur071wrPk7u5h41dg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Aahfq+VMur+Yw3u9hv3wBXBgVr26NSXx/XE/OfQ7GPMT4tSMdHbUX+wyixV93OQmWUgeeXjRZjK5qGluzRjyn8nJZZkUgJw4DaAElkPudzasP754thbecySshYpAk7E8dtAnR5iVhySyPhGy6AxtHRruzK0EZ35p2sXQpxpOAFE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=NAcG7w+T; arc=none smtp.client-ip=209.85.221.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="NAcG7w+T" Received: by mail-wr1-f44.google.com with SMTP id ffacd0b85a97d-3c73d3ebff0so827149f8f.1 for ; Thu, 28 Aug 2025 02:38:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1756373894; x=1756978694; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Zz5iR5Itghwnj9zwKDl9tq9v6O15lxNL/l95WBYSHzU=; b=NAcG7w+TikWcJLvBNbIb3PdB6Da7jUCKr4zgYA6fOv12nriI8yyZFFkYP7R5oMQ1Tw i12ewp4wDdumx3/WcO9QQiswDVXYwbpe/SjGrr5n/vySKnU3vJEKzdaowJvT0RckCGJo uNdpS/5wAuQd1+DEdMSegVSw38MdcMv4fuqDezcN8/6MciDvJfdgIsrUUlBUmNFkXq9g oCczaimv/HviEGBik2Ub7JD/HBEvIy2K9q3q0Y0ek48Sl9EfPBy/JKd78PHmj4nWKhRe DLJlxvGY/aoJO52EecnsJVygjQwZOj9DJGwkO3wZiFF74CpaKl46vQQpsKQPT/p3uycv 4FAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756373894; x=1756978694; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Zz5iR5Itghwnj9zwKDl9tq9v6O15lxNL/l95WBYSHzU=; b=ME9NXwH+9v9Pftau0ZKyMuBZJLkgnDzL51polhdLk2aKyt3oTAzVWcoZNmWI8YUQLY f8aioSJ7Y67DHxDoEZbzfVP5fNAgi7WcT6AD4/GHqRYKxRa1mJuE6tT53kmAcvBagh8m cwHfZ7+tG2Ju08BA9brGUCh2ZLwebTulnxiVnito0rdirbk9CdyAGtFtBhuGXF5n/5FF u2uibEo/gCbfk8apaG75ZOn+yCA4yuqo7CoTjiaM5/c24CFpgeIM6JYvfyWNVBv5IwGh h5rW7qZ/mWC9qyNEMNRnI0l5YA3DMqmdQJWQPxVyivh88I2/PtoNWwiuETSVpWcQ12FL Jg6w== X-Gm-Message-State: AOJu0Yy4mr4l3Z+0KyTFGYWC67Mz+ZzevCLgjDIFJXsBZSHnVpnlIF5K 1LoI4s7kf/p/NSDwMAOfPoYWv+PFweYl1BOjlshhMe33W9bdlSP0xnx5DTt65A== X-Gm-Gg: ASbGncvXfApTWRKDdOwZOE77sSa0J8v0T+It9zqE90/nl3EaL7VlRrvpkwDQFkmzGDU zpHYjgFCf0WwFtyukx2dZMrwe9gKDiWWcU4JMr2pk90mxvE/6D6fga+hYthjWq6zywHEy+MBUn6 XtZ6IL1+2Ku4eEWybKC67edv9/YE5ITMa0mZOn2WUjLNcEDfULpG+DsUOHv6kxEnzQXQ9S0+yic KRQ5H4AXej8C8FOem+kvPByMEr5AFffTyNHNkHMRiqvDgjUp/3mDM52kuhFWrPOZrS1n6yGiOHn xco6GQ1kkMQie7Cwn1xjWu1taFvhfk2cicTT8hbTfm4wyxvIIoIcLAu/HMRDwy/NmE2a0euTY9o P2J24RSGc9EElkpTd X-Google-Smtp-Source: AGHT+IF50A5xS8HMr4J9qdzkQADKpFOfxoeNnqFab3bKz/8E11EK5SvTEhc0RyV5rQsKxeCG9DTCdg== X-Received: by 2002:a5d:63cd:0:b0:3cb:bd66:da42 with SMTP id ffacd0b85a97d-3cbbd66ed3cmr5398445f8f.13.1756373894053; Thu, 28 Aug 2025 02:38:14 -0700 (PDT) Received: from 127.com ([2620:10d:c092:600::1:68ae]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45b797e5499sm24331455e9.21.2025.08.28.02.38.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Aug 2025 02:38:13 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com, Gabriel Krisman Bertazi Subject: [PATCH v2 1/3] io_uring: add helper for *REGISTER_SEND_MSG_RING Date: Thu, 28 Aug 2025 10:39:26 +0100 Message-ID: <8c4cbc22dfcf1b480fab2663cfda7dcc013df3ab.1756373946.git.asml.silence@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Move handling of IORING_REGISTER_SEND_MSG_RING into a separate function in preparation to growing io_uring_register_blind(). Signed-off-by: Pavel Begunkov --- io_uring/register.c | 33 +++++++++++++++++++-------------- 1 file changed, 19 insertions(+), 14 deletions(-) diff --git a/io_uring/register.c b/io_uring/register.c index a59589249fce..046dcb7ba4d1 100644 --- a/io_uring/register.c +++ b/io_uring/register.c @@ -877,6 +877,23 @@ struct file *io_uring_register_get_file(unsigned int fd, bool registered) return ERR_PTR(-EOPNOTSUPP); } +static int io_uring_register_send_msg_ring(void __user *arg, unsigned int nr_args) +{ + struct io_uring_sqe sqe; + + if (!arg || nr_args != 1) + return -EINVAL; + if (copy_from_user(&sqe, arg, sizeof(sqe))) + return -EFAULT; + /* no flags supported */ + if (sqe.flags) + return -EINVAL; + if (sqe.opcode != IORING_OP_MSG_RING) + return -EINVAL; + + return io_uring_sync_msg_ring(&sqe); +} + /* * "blind" registration opcodes are ones where there's no ring given, and * hence the source fd must be -1. @@ -885,21 +902,9 @@ static int io_uring_register_blind(unsigned int opcode, void __user *arg, unsigned int nr_args) { switch (opcode) { - case IORING_REGISTER_SEND_MSG_RING: { - struct io_uring_sqe sqe; - - if (!arg || nr_args != 1) - return -EINVAL; - if (copy_from_user(&sqe, arg, sizeof(sqe))) - return -EFAULT; - /* no flags supported */ - if (sqe.flags) - return -EINVAL; - if (sqe.opcode == IORING_OP_MSG_RING) - return io_uring_sync_msg_ring(&sqe); - } + case IORING_REGISTER_SEND_MSG_RING: + return io_uring_register_send_msg_ring(arg, nr_args); } - return -EINVAL; } -- 2.49.0