From patchwork Tue Feb 18 13:00:45 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Hindborg X-Patchwork-Id: 13979787 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 1DEC2267384; Tue, 18 Feb 2025 13:02:05 +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=1739883725; cv=none; b=p5iUbll8NK77+v01K0tUme3SNSmbJ2+Yf41LLESx5C0d7AnZFHPdR4a1M8E0zfR6T1pNO0dsNZLAG7wJAPzqRg1UN8+UgSsdbyNoMbCthPX8GdoU6shM8w3a3eT9ukyoEEILr0Om+QkR/EY91+2neGbJhQPEwyv6MStGM7826aE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739883725; c=relaxed/simple; bh=kvGbpK9kXJddOYZoiGF2djCA1EY8EEWP9GNQBrdAngE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=bFGNIShWNqiBA0YfsOYhCs8euA07MO8w3gwxq1AUS6o/1f3KRhC4+JEAi35ylQOrNxpYh/Xm5snIpFQjDU4kAPITMLxC+q2JXygSfnc7BHqeQIzABX02NNCd3Ko2yMA5DSUMne375DzgCWDv9H6IQl5VE8ox2pY+zxz8clCNwS0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=D5Ie2UPL; 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="D5Ie2UPL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0A968C4CEE2; Tue, 18 Feb 2025 13:01:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739883725; bh=kvGbpK9kXJddOYZoiGF2djCA1EY8EEWP9GNQBrdAngE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=D5Ie2UPLiPm48/it8g6AvmzcXhTWyR8yEwmD/nAM6fyxJvxdkKUrn8XOSOu+2Bb25 oxBA3b+SXz/5ZwvOmsH8k/ahIX0BPQ7sm69fDVnE1eyVoxMx2XIfVFyDxsXcmJl28f KaydLtAJan2g8LOOg3OCViaEZNw9U6Q1op8GF1sLNYBt7gFeFXpJHs+yjN26HyIR/z OzVPNnugcfcTGFqFFd4ZxkVuaCrrLzVKr49ILbq6DeHm5+lecKFsYXtWY3IB4V4KF7 kF3phVtiJhlF94m17q469/VlZ2/hhE0HGwito842HH/jfWhkwVsOCwB1jSdwBi6IUY ecGOqy5ICTRUA== From: Andreas Hindborg Date: Tue, 18 Feb 2025 14:00:45 +0100 Subject: [PATCH v7 3/6] rust: str: implement `AsRef` for `[u8]` and `BStr` Precedence: bulk X-Mailing-List: linux-modules@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250218-module-params-v3-v7-3-5e1afabcac1b@kernel.org> References: <20250218-module-params-v3-v7-0-5e1afabcac1b@kernel.org> In-Reply-To: <20250218-module-params-v3-v7-0-5e1afabcac1b@kernel.org> To: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Luis Chamberlain Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Adam Bratschi-Kaye , linux-kbuild@vger.kernel.org, Petr Pavlu , Sami Tolvanen , Daniel Gomez , Simona Vetter , Greg KH , linux-modules@vger.kernel.org X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=844; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=kvGbpK9kXJddOYZoiGF2djCA1EY8EEWP9GNQBrdAngE=; b=owEBbQKS/ZANAwAIAeG4Gj55KGN3AcsmYgBntISFZJsHCDQ/fYrSsdwC6D0joyKK16I5hZxcv 1WrTIW05g2JAjMEAAEIAB0WIQQSwflHVr98KhXWwBLhuBo+eShjdwUCZ7SEhQAKCRDhuBo+eShj d9LlD/9AXD7x+fgK0eDF7+5eqzztOc9cyUmJRsa9caJUaZMK20kNv9/Wu8gi72DfGynreTyx1Am M+PywlvqQmQmf5njTmNkD0zRuDyCH/vJYmPKdHoe8Qt5CLVc0eKfLwQC0/A34I5l3GQB9YknLxt T7Psf5O5u/mNbckCCLOv8JAjzXBRQL9XV0pZsXBKG9IHaen/bk93lREws+biXEh2Y2RTJ8VEteF ZjxncX+FoFH5btwW1Viu/LrFYfOs/ufFvHhyHX4umcf0CH5cLqWsOoqzEWNtnqLk8StgT2cTwG0 B3HSXpmfNfy19yK3PFnvbmlMeFIO2pYcgqZ72n0IksJwiJJXLyOmz6/8sDqHYskpCoIx0flB1Wa Oe1owSXt2JotwiKJqnU3Ta3CX9zWTo5IgyRhlId8i5bT3rIwbv18vWPixwn13S6GvhPoec0VM1g iIvJ6xAOBipHc7vytgV/D0fNQ+6Mkzumseoq4uLYmZXMboAAyxai/QKf5zZExQh4453ie/tHViV eKB9m2dIIgkJ9t/1JXq1B0VVVtdcpnGqcOAzLGynE8HCMWcxLtHHZQce/SXWFDdObg2oLO7EVEN GLqrVTLoo5HUu23PDTZelJ0ZBO+BJoWLUIqT89n80pnJjmu9wxixM/IuO4Hdtiq32vZaKmBokZ4 sLbGNo0ugaCCgCw== 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`. Signed-off-by: Andreas Hindborg Reviewed-by: Daniel Almeida Reviewed-by: Gary Guo --- rust/kernel/str.rs | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs index ba6b1a5c4f99d..c6bd2c69543dc 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