From patchwork Fri May 23 04:39:16 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 892291 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 D2045253933; Fri, 23 May 2025 04:39:41 +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=1747975182; cv=none; b=pmI14zKwq2hN75Qgy8ih+B28S/y1AHY6ZjulH3PZV2nIZoL+4x7roVRH9WR7aj7wCHSi1Z6fXYmEYLlv9cjvTgmnpLhFP8soMtseB42KuiecIPxJ9UIacITmqMqcFn2sIEZvSZv3ewJQZgBnBbAXzK0bYWwerD5Cl/LtFO6DUns= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747975182; c=relaxed/simple; bh=snrRkduazq+CuYpLqIIgLSyyFGO/4xQDvfJjkALfmd4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=K1rYZnBTraNNC0QlrBw8jugg+gDaBQ32jCo6w5N4K+t6GHp/DsBu5hPbACot77idre5EnW3ONs568eOxr2Xa3Nky7p18mhr/bNAgn+qLqvcSQT0KGOASrqFbLDEGD70mi9za9PLK9vJsXL9TfaXl7gv1kUN3Gke9RhpA2KuDkcc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=op8RRRGe; 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="op8RRRGe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3784AC4CEF2; Fri, 23 May 2025 04:39:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747975181; bh=snrRkduazq+CuYpLqIIgLSyyFGO/4xQDvfJjkALfmd4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=op8RRRGe2/JON5AhouRE1uGu/0MQ6MJngswUtwTUCqRtXYGhN+/KMwsfK+InxrS/j qVBI5FPdfZQsdd15OTbv5MfokKIPn3Jom9SYvVFRlUvJM+6byXz8hpvJnEUDE/eoC2 Fykfqq9R8Bgz7OPXG2c8og+uXdyuym0+B8zll4KTL4MLpoPnoSmk1fzWge/iYDnFwT RpNM3JYC/cn/dKAymuALJKhBi5GY0ejseIQ9zPqp4Y4TLqiI49u5fGaBLSNpGn9dI9 1EiGxhtXGhxc6+9u34GU/yztyCegScP3oRdaK54o2i08c44La6Bv2YXhmPUOSt6Ojj ExTH5vB4iW4Yg== From: Kees Cook To: Arnd Bergmann Cc: Kees Cook , Catalin Marinas , Will Deacon , Jonathan Cameron , Gavin Shan , "Russell King (Oracle)" , James Morse , Oza Pawandeep , Anshuman Khandual , linux-arm-kernel@lists.infradead.org, "Gustavo A. R. Silva" , Christoph Hellwig , Marco Elver , Andrey Konovalov , Andrey Ryabinin , Ard Biesheuvel , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-kernel@vger.kernel.org, x86@kernel.org, kasan-dev@googlegroups.com, linux-doc@vger.kernel.org, kvmarm@lists.linux.dev, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-efi@vger.kernel.org, linux-hardening@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kselftest@vger.kernel.org, sparclinux@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH v2 06/14] arm64: Handle KCOV __init vs inline mismatches Date: Thu, 22 May 2025 21:39:16 -0700 Message-Id: <20250523043935.2009972-6-kees@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250523043251.it.550-kees@kernel.org> References: <20250523043251.it.550-kees@kernel.org> Precedence: bulk X-Mailing-List: linux-efi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1393; i=kees@kernel.org; h=from:subject; bh=snrRkduazq+CuYpLqIIgLSyyFGO/4xQDvfJjkALfmd4=; b=owGbwMvMwCVmps19z/KJym7G02pJDBn6v3/OeF2xrGn/ecfjBwO7efZdOCt4+rf88t0n3N4wb Z+3/dJegY5SFgYxLgZZMUWWIDv3OBePt+3h7nMVYeawMoEMYeDiFICJ3LzFyHBy2+63G546VX1g 0Vi7P+DmOWnH15LfT2QGVG0KzD0V33ie4Z+ZkuwqZaEtna8zJ9x43F2j86WpmZGvafXnHuZ8IQF la24A X-Developer-Key: i=kees@kernel.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 When KCOV is enabled all functions get instrumented, unless the __no_sanitize_coverage attribute is used. To prepare for __no_sanitize_coverage being applied to __init functions, we have to handle differences in how GCC's inline optimizations get resolved. For arm64 this requires forcing one function to be inline with __always_inline. Signed-off-by: Kees Cook --- Cc: Catalin Marinas Cc: Will Deacon Cc: Jonathan Cameron Cc: Gavin Shan Cc: "Russell King (Oracle)" Cc: James Morse Cc: Oza Pawandeep Cc: Anshuman Khandual Cc: --- arch/arm64/include/asm/acpi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index a407f9cd549e..c07a58b96329 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -150,7 +150,7 @@ acpi_set_mailbox_entry(int cpu, struct acpi_madt_generic_interrupt *processor) {} #endif -static inline const char *acpi_get_enable_method(int cpu) +static __always_inline const char *acpi_get_enable_method(int cpu) { if (acpi_psci_present()) return "psci";