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[2620:137:e000::1:20]) by mx.google.com with ESMTP id g8-20020a056402090800b004615d1d6b1dsi34532edz.502.2022.11.10.08.45.41; Thu, 10 Nov 2022 08:46:06 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="Yp/6XFlz"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232509AbiKJQo4 (ORCPT + 99 others); Thu, 10 Nov 2022 11:44:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40176 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232516AbiKJQoR (ORCPT ); Thu, 10 Nov 2022 11:44:17 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7295C450B4; Thu, 10 Nov 2022 08:43:26 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 11C77B82251; Thu, 10 Nov 2022 16:43:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DA8D4C433B5; Thu, 10 Nov 2022 16:43:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668098603; bh=I3b0Z7RHs3m0QbSSsLLKwiQESMTWz+K564vWJV2JsjA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Yp/6XFlz+k04kCIlhS2B7ArlTF8uHXzFiMTnjRyUTjiwb4202IV8ifYnWqDb0mU+G yfICCMeY46vT+WeRhUyJuToCRSCPgt8qdqSJuizlKRzNeflPzGSyO/ZCEuIfhErpGM 0COeovEJQIyeGhyYcArZACHaQFby9VJdFW80t+7Lcmzb/3G0P4ocVCPY+V3gZ0u6y2 YorzeDzm32SzM8hpLKcB59M8689V8Pmgh2d7CpI6V67oa3UqYcuCAJXiY5/RQU7KM2 Vix8vowoVr8xSF7f1Ui7Ed8/AV7G7x/zteQ5HQSxeAqg5bTmc7Md0hsusR7qwG2E+1 FUW9QoBga1rQw== From: Miguel Ojeda To: Miguel Ojeda , Wedson Almeida Filho , Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, patches@lists.linux.dev Subject: [PATCH v1 22/28] rust: str: add `fmt!` macro Date: Thu, 10 Nov 2022 17:41:34 +0100 Message-Id: <20221110164152.26136-23-ojeda@kernel.org> In-Reply-To: <20221110164152.26136-1-ojeda@kernel.org> References: <20221110164152.26136-1-ojeda@kernel.org> MIME-Version: 1.0 X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1749128331493898326?= X-GMAIL-MSGID: =?utf-8?q?1749128331493898326?= From: Wedson Almeida Filho Add the `fmt!` macro, which is a convenience alias for the Rust `core::format_args!` macro. For instance, it may be used to create a `CString`: CString::try_from_fmt(fmt!("{}{}", "abc", 42))? Signed-off-by: Wedson Almeida Filho [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda Reviewed-by: Gary Guo --- rust/kernel/str.rs | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs index 877148b77e71..ffac633423db 100644 --- a/rust/kernel/str.rs +++ b/rust/kernel/str.rs @@ -592,3 +592,9 @@ impl Deref for CString { unsafe { CStr::from_bytes_with_nul_unchecked(self.buf.as_slice()) } } } + +/// A convenience alias for [`core::format_args`]. +#[macro_export] +macro_rules! fmt { + ($($f:tt)*) => ( core::format_args!($($f)*) ) +}