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[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: acpica-devel@lists.linux.dev 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