From mboxrd@z Thu Jan 1 00:00:00 1970 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 B2865CA5FED for ; Tue, 6 Oct 2026 06:55:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E42A310E1CE; Tue, 6 Oct 2026 06:55:03 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="FFTE6okV"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0DE0710E0BB for ; Tue, 6 Oct 2026 06:55:03 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id B96064182E; Tue, 6 Oct 2026 06:55:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A26891F00893; Tue, 6 Oct 2026 06:54:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791269702; bh=kWfhtTsuBDzUJb00n8FTUxSmpeehi2Dw7Nxj3gMMr6Y=; h=From:To:Cc:Subject:Date; b=FFTE6okVVv2MKCisB77eJtQ8FbDuW2b1gka+r95Tks+CN10DiFUA0E02zOP+RE4Gz 3dam7DUKthjxqVSVCd4YvvV+yMw94fQb1ORwjft1WTpSxbKODV98en2PbhiQFjiVK7 DDTQw/rHk1XUNz60ofG1B83J/vvGz8dfRfr5MWWnYMbG8bX+2b6FJl2I+TrHTU9MUp ZypkBfEwY/YtRbdxX2XU+vIztzImtbh2Mv9rVxvSiK5Emvh+v8smGduqa4PW1gBEBZ rXB33n8hyTgK6wCv5fucEmpRqgFb4kHbN12CWdZ1rk89iRzTnhOINsdEqIlQbntwKg ix4jvTZWQ/ijw== From: Thorsten Blum To: Danilo Krummrich , Alice Ryhl , Alexandre Courbot , David Airlie , Simona Vetter , Eliot Courtney , John Hubbard , Gary Guo , Tim Kovalenko Cc: Thorsten Blum , nova-gpu@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH] gpu: nova-core: fsp: use KVec::zeroed() in recv_msg() Date: Tue, 6 Oct 2026 08:54:35 +0200 Message-ID: <20261006065437.58408-3-blum@kernel.org> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=883; i=blum@kernel.org; h=from:subject; bh=Qn23wxiXez928e4XtpLbgNBHH4EiwBuPKrXVHQ82dos=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDFlHZuuea3j87Xqqu52FvOLURTP9b8cbvrm56qrM0trnT ru/aP/40lHKwiDGxSArpsjyYNaPGb6lNZWbTCJ2wsxhZQIZwsDFKQATqX3CyPBO/NuLx1l58/Sm LFzCyxTIeuP+/39r1mZ6v3FfJbViJm8pw//09lff9+gk1dZWHtrnYK16capU61fV9unanCKpDsw T+XgA X-Developer-Key: i=blum@kernel.org; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: 8bit 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" Use KVec::zeroed() to create the message buffer in recv_msg() instead of creating an empty vector and resizing it. Signed-off-by: Thorsten Blum --- drivers/gpu/nova-core/falcon/fsp.rs | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/nova-core/falcon/fsp.rs b/drivers/gpu/nova-core/falcon/fsp.rs index 0437180b8829..4190f4f8e8c9 100644 --- a/drivers/gpu/nova-core/falcon/fsp.rs +++ b/drivers/gpu/nova-core/falcon/fsp.rs @@ -172,9 +172,7 @@ pub(crate) fn recv_msg(&mut self) -> Result> { return Err(EMSGSIZE); } - let mut buffer = KVec::::new(); - buffer.resize(msg_size, 0, GFP_KERNEL)?; - + let mut buffer = KVec::::zeroed(msg_size, GFP_KERNEL)?; self.read_emem(&mut buffer)?; // Reset message queue pointers after reading.