From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f50.google.com (mail-wm1-f50.google.com [209.85.128.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 49107220694; Tue, 15 Apr 2025 18:05:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.50 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744740302; cv=none; b=sOt/YgfLkhnlKmP2YS+SdKGAdUk4sQmf49fvKgsXEF8GYeAp5mVYzAaeQ2vMwbNBFAMFUYaq8MAF+7fVkZ4h3B2ekRtXEfgPzE1jRSdWrtDsEKVabsP39eh4toINV62gGAOfYuJdZMDrH9lqoUPInY4ItYQUu8oltP5F6Z+HNTM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744740302; c=relaxed/simple; bh=bSIH+zqpDkmwA6RNwqFHsidqqNTR1psChK3N90ojLYM=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=L8pWRICgv9LD1BUwRItbMacNRhdrWXmagM5TSHd2u/CWmjNs2IeotQUAWgxQJiJQLbqjGRlI+qRiwf4fVDOYXbCvtnFqYs80qwPvjCqfiGctf+XGOVB4o/nOdQiFDrB/O7NMk2F4R5s9AqsRxfpS68GUhj6tswFtC6uS+P6el4U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=nLywB/q+; arc=none smtp.client-ip=209.85.128.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nLywB/q+" Received: by mail-wm1-f50.google.com with SMTP id 5b1f17b1804b1-43edecbfb46so40587095e9.0; Tue, 15 Apr 2025 11:05:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1744740299; x=1745345099; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=RAA5GsUBd1AyUaSODfHnhDVrxDoRhK+SaJ6cRkLQ9hE=; b=nLywB/q+OeO9uyblyqIsVITy4s1BDrGMNH7wU1xlJ4u0+IAqV96hwKU4Oyjn524+c2 jwvXOMkfZ4guryI97B1ggYVm9816gyZ4oKmZhD16UhvoH1GoH8aM5ZMVkCLEByytYZWD lONzKkJAgHyJAl8Kr480CTHVdx5LYFAtGoePEmN0adGWOWS64fcxVD+4oQRGuvxYMutP kNsMFzcVbNP59sZllw23B0/f5GyLCXKF9uq4Z8AkuusA7BTdn2iG3yvzM0aoimhIJTT3 V9It1T/RxlIQwSrwGB9BeLcQnYcD1q/MpvFsfI7QiYKFnNdonKhEJ8SuWMR/eIt7oBE5 3k1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744740299; x=1745345099; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RAA5GsUBd1AyUaSODfHnhDVrxDoRhK+SaJ6cRkLQ9hE=; b=XJTFP3VkrTWoK/ffJ2pB5dS3PhdDOxrzGHpp0/Uva2Hd3G9QWfgNEx9Yitk/AG1JzR c/DOuFjc6ecUAWkNYXUf1oEX9yc4BEUwksXhpxtz4Whbu7mKZ43cyCLI5PJPN4pBqQT/ JktSE31SsT3a4P7CnnKS4eXcLjZQTABV+Ep+gbiDI0CbOX//kc1d+wLZxMea40w9YZqr boHrhy3mvWjGB3I45xeiO68VZOY6YcnUddHgg8272HWDKMCPnMDeOv/VzJg0NGif1hf/ wPFAi98yL6nqQpKa1mIVnTOKaPaWJ56fAqzzxiubYtN+KxkSQzfeYMr75CxxRle5khf4 ymgg== X-Forwarded-Encrypted: i=1; AJvYcCVq7ZXeKi87Y2HPc7KEhhK+7FnVgPo9GoNTbGspsVCpYO4a23XPqTVXKIEFC65i79NGz0lRuwHQNM1elwYF@vger.kernel.org, AJvYcCXTEkVMz6lDCmUdbhKeQufo7ZdIFz6c58aHats27AoZFmg6t+gx+SqGG47oP03yoT1Ca4VbEsepFipa@vger.kernel.org X-Gm-Message-State: AOJu0YwN3f/CT3RHHs7qrP22PP2YYFY9b0A1/G16GH8FKqSBfLEhXrR/ cTloWL0Bm0dOeGJLI8FRTKFQhbUgTXwdqhiTk/ERJgmtCiXMWrxFRPmkpQ== X-Gm-Gg: ASbGncuJAga/Sj5bF9mrNiWf+vsMv2EZUjz63E3R5gPMUOOclKffm0Ky9/nnI1Cklu8 BW+80CApQ/nHcPuhRcNHiHJrjEBn3poXDxQWmZnM1KTsOcPQ247VedMDcl4pD8KmrUNnEw0WRRq jYU4KIRB/FtPX3rFGrv6qbmBqBGNkVvSVUp7Hep0DPk7mk/Kwfui3jnbWkL/T3qeEnm1yqODCSk PrMKrdQ9HTPy1vsIesQGZQJMn0IeFJPFva+RvvU7+VdZ1Of0aWiPg6ri51fL7kT5YbF60eXQkyU fkOWxxMP1vNepyY+3gN5nn9LWIC9EEiO3nY1779O9IkZyyf+7wTKVZGo9yELDDvzQBY8XFanh3r 9rKg= X-Google-Smtp-Source: AGHT+IFc3g8QQ9k9lgukZ0sd7DIp2WxsNbtPZklAM2PLk9fBgcH1wwc0A6XRSO71CM8ag9ErKBZWTA== X-Received: by 2002:a05:600c:1f8d:b0:43d:db5:7b1a with SMTP id 5b1f17b1804b1-4405a0064d6mr892895e9.12.1744740299439; Tue, 15 Apr 2025 11:04:59 -0700 (PDT) Received: from pumpkin (82-69-66-36.dsl.in-addr.zen.co.uk. [82.69.66.36]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-43f2066d6e8sm225626635e9.23.2025.04.15.11.04.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Apr 2025 11:04:58 -0700 (PDT) Date: Tue, 15 Apr 2025 19:04:57 +0100 From: David Laight To: Brahmajit Das Cc: Robert Moore , "Rafael J. Wysocki" , Len Brown , linux-acpi@vger.kernel.org, acpica-devel@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/1] ACPI: Fix building with GCC 15 Message-ID: <20250415190457.351e22a1@pumpkin> In-Reply-To: <20250414161644.30400-1-listout@listout.xyz> References: <20250414161644.30400-1-listout@listout.xyz> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Mon, 14 Apr 2025 21:46:42 +0530 Brahmajit Das wrote: > Since the Linux kernel initializes many non-C-string char arrays with > literals. While it would be possible to convert initializers from: > { "BOOP", ... } > to something like: > { { 'B', 'O', 'O', 'P' }, ... } > that is annoying. > Making -Wunterminated-string-initialization stay silent about char > arrays marked with nonstring would be much better. ... > diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h > index 6f4fe47c955b..d2cda1b35e59 100644 > --- a/drivers/acpi/acpica/aclocal.h > +++ b/drivers/acpi/acpica/aclocal.h > @@ -293,7 +293,7 @@ acpi_status (*acpi_internal_method) (struct acpi_walk_state * walk_state); > * expected_return_btypes - Allowed type(s) for the return value > */ > struct acpi_name_info { > - char name[ACPI_NAMESEG_SIZE]; > + char name[ACPI_NAMESEG_SIZE] __attribute__((nonstring)); Doesn't than generate an 'unknown attribute' error on older compilers? Does: typedef char char_nonstring __attribute__((nonstring)); char_nonstring name[4] = "abcd"; work? If so the attribute could even be applied to 'u8'. David