From patchwork Sat Oct 12 07:52:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_B=C3=B6hler?= X-Patchwork-Id: 13833787 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 95978CF2568 for ; Sat, 12 Oct 2024 13:50:05 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 335D210E1FC; Sat, 12 Oct 2024 13:49:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=wiredspace.de header.i=@wiredspace.de header.b="2n981J1O"; dkim-atps=neutral Received: from out-185.mta1.migadu.com (out-185.mta1.migadu.com [95.215.58.185]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6CDE410E308 for ; Sat, 12 Oct 2024 08:00:53 +0000 (UTC) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wiredspace.de; s=key1; t=1728719614; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6OlwIdCzcY6aFelGEBN20ax7Y102wIl6HXhpWaUdSH8=; b=2n981J1OKZiHd3yRwNB996EiVpGTi+j65C7jCX1rnYwo86uKc2Hv6BqNd1xBqMaGelQ9XN u/ffPuSutQdrNJ1/76exgT+U2ryuE8mA+GCj3UpG9WOFFreGECOSyLnu+cbbUeaaqsJ47y Av7H0AuMLE+iNwUIOAssCpHWm9GQNws= From: =?utf-8?q?Thomas_B=C3=B6hler?= To: Miguel Ojeda , Alex Gaynor , Jocelyn Falempe Cc: Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , rust-for-linux@vger.kernel.org, Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, =?utf-8?q?Th?= =?utf-8?q?omas_B=C3=B6hler?= Subject: [PATCH 2/7] drm/panic: remove unnecessary borrow in alignment_pattern Date: Sat, 12 Oct 2024 09:52:45 +0200 Message-ID: <20241012075312.16342-2-witcher@wiredspace.de> In-Reply-To: <20241012075312.16342-1-witcher@wiredspace.de> References: <20241012075312.16342-1-witcher@wiredspace.de> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-Mailman-Approved-At: Sat, 12 Oct 2024 13:49:57 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The function `alignment_pattern` returns a static reference to a `u8` slice. The borrow of the returned element in `ALIGNMENT_PATTERNS` is already a reference as defined in the array definition above so this borrow is unnecessary and removed by the compiler. Clippy notes this in `needless_borrow`: error: this expression creates a reference which is immediately dereferenced by the compiler --> drivers/gpu/drm/drm_panic_qr.rs:245:9 | 245 | &ALIGNMENT_PATTERNS[self.0 - 1] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `ALIGNMENT_PATTERNS[self.0 - 1]` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow = note: `-D clippy::needless-borrow` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::needless_borrow)]` Remove the unnecessary borrow. Reported-by: Miguel Ojeda Closes: https://github.com/Rust-for-Linux/linux/issues/1123 Signed-off-by: Thomas Böhler Reviewed-by: Jocelyn Falempe --- drivers/gpu/drm/drm_panic_qr.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_panic_qr.rs b/drivers/gpu/drm/drm_panic_qr.rs index 76decf49e678..7adfaa3d6222 100644 --- a/drivers/gpu/drm/drm_panic_qr.rs +++ b/drivers/gpu/drm/drm_panic_qr.rs @@ -239,7 +239,7 @@ fn g1_blk_size(&self) -> usize { } fn alignment_pattern(&self) -> &'static [u8] { - &ALIGNMENT_PATTERNS[self.0 - 1] + ALIGNMENT_PATTERNS[self.0 - 1] } fn poly(&self) -> &'static [u8] {