From patchwork Thu Feb 27 14:38:09 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Hindborg X-Patchwork-Id: 13994727 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 DE86A236425; Thu, 27 Feb 2025 14:39:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740667163; cv=none; b=CPb57hDYZXacbj0aGQScNrCUPmA3v47jztV3VHmBrUktmnCCxcoHk2QzbuE2QNt1aN1+6T5P8jJNiEVizIMZCTUVAjhNF6Vn2sFxvboDoUbRMf/VV2v7x0+p0M98vCY7Wr8UYEbUXMqi1yZz0Tvo8Tur6hrDnHSKRYHrUp2OwOs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740667163; c=relaxed/simple; bh=y61tYQBOzvQT13se+wj4PsD5CpV5viHok2MH3MQVUsw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=DbmHjTtLAcTmJb0wwZH6CeRQQ6uV8TjnVV6qkpNyqOdWpnX+LEc1WkmAhlM4ZCr1GhJ3pj+9NYwW0+TCv3CtJUSH4/Lpr2U8PHVcykCCo/E20NPJxwatNr4Dsz6/fPnml5DCPwrk0koHqyNA2iBDZ75O7eStxRIzO9UctCzIJjk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QA4tL/L0; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="QA4tL/L0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05250C4CEDD; Thu, 27 Feb 2025 14:39:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740667162; bh=y61tYQBOzvQT13se+wj4PsD5CpV5viHok2MH3MQVUsw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=QA4tL/L05Yy3kZT2LhyG/ajf57qo2SGAErx034vB89DrdQ4SNakcQHhwfbQ3we90J Bxtk9YOLY8J0lEg76YFeD/vUh0ZnBESTIKiizf5La3cAUHITehNNp5LXOmovrMSlxh 3IIbqqohDh9LoFpjENxLJcD3lpNuELsSukWgsfzqArTokkwZb0M1mvWgHz/t32nbGl zJ3JPZdabVE3IPobp/oQONZ7DQxHhggkUUjKmPamKqP3emW/vdvHSEbVkHMuDgTgeR 5FaYqp5n+yPb+GlsF23mWzIIVDjVOA/Bkl4yiCMALkvwrRo2zJeQf0AD0COClIqOGq pL+gqqawbPzTQ== From: Andreas Hindborg Date: Thu, 27 Feb 2025 15:38:09 +0100 Subject: [PATCH v8 3/7] rust: str: implement `AsRef` for `[u8]` and `BStr` Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250227-module-params-v3-v8-3-ceeee85d9347@kernel.org> References: <20250227-module-params-v3-v8-0-ceeee85d9347@kernel.org> In-Reply-To: <20250227-module-params-v3-v8-0-ceeee85d9347@kernel.org> To: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Alice Ryhl , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Luis Chamberlain Cc: Trevor Gross , Adam Bratschi-Kaye , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, Petr Pavlu , Sami Tolvanen , Daniel Gomez , Simona Vetter , Greg KH , Fiona Behrens , Daniel Almeida , linux-modules@vger.kernel.org, Andreas Hindborg X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=1002; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=y61tYQBOzvQT13se+wj4PsD5CpV5viHok2MH3MQVUsw=; b=owEBbQKS/ZANAwAIAeG4Gj55KGN3AcsmYgBnwHjSLiqwqmIm6F5SfrtT7rO15l7n0S0sY1Fne wmWAtG2mhSJAjMEAAEIAB0WIQQSwflHVr98KhXWwBLhuBo+eShjdwUCZ8B40gAKCRDhuBo+eShj dyKhEACm1VAvi9EwhBdVdbF6jykLLlxpF5TrA52pr63Q0BUvMrammDD+I+zpzRp5OOkrtVRsk1o G28P+Waxuj+uup1uu21fB8qgRPUvVzGy97g9zUgzxkRXsBRVnbEXR73AzUHpXXaFmwIcdM8HdMH KSCiR7zZtVLUtQJw00ThsViULXCRjq4ygmFtjXYj/WKfjSFz57i1sRO6HpUTOKcA4tku/1wVw1X juJEZEfqziyE4ktlx3zh1/raTWFp+sW4IN/kJMunrT3J9HiokyAeZ2WU/EY7O0wQPl5N3Z0Eh7r sk48w01w5pkivKNr3S2MQ//LmhdnrIymlsbSku/6+yVpEwLRAkh9q32RK/wH+F0sSHnoMMVZgNG soin67nssp5Q7nBPOt/DGhpCWnvJWiLN81BwtLPDY7jUnjeihM4t1bekga8V5XGBk672B0cvidT XxRfgc20xjn2DtJRZE7XdEUTDKjq2iNQ8UTWhuymjLw5yWqCqw8MYIu52nb/90lUQwWX3uESVel LF/KQRupGqVfqGI1z9YIoG+yfvi3V72R/8zPXqQ9Bywr8DjDwEy1HXChaw8k9h+hiztFgfX65C+ JwIlwR92VkoinrYGv0dugRU64Fe7AdZ6dM7DAo8kqUeEx+jC1aPqYiXgFIUBhZJ3zOAmDxX7EW6 ezjZ8a5tkRN2ThA== X-Developer-Key: i=a.hindborg@kernel.org; a=openpgp; fpr=3108C10F46872E248D1FB221376EB100563EF7A7 Implement `AsRef` for `[u8]` and `BStr` so these can be used interchangeably for operations on `BStr`. Reviewed-by: Gary Guo Tested-by: Daniel Almeida Reviewed-by: Daniel Almeida Signed-off-by: Andreas Hindborg --- rust/kernel/str.rs | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs index ba6b1a5c4f99..c6bd2c69543d 100644 --- a/rust/kernel/str.rs +++ b/rust/kernel/str.rs @@ -125,6 +125,18 @@ fn index(&self, index: Idx) -> &Self::Output { } } +impl AsRef for [u8] { + fn as_ref(&self) -> &BStr { + BStr::from_bytes(self) + } +} + +impl AsRef for BStr { + fn as_ref(&self) -> &BStr { + self + } +} + /// Creates a new [`BStr`] from a string literal. /// /// `b_str!` converts the supplied string literal to byte string, so non-ASCII