From patchwork Mon Oct 14 10:58:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryan Roberts X-Patchwork-Id: 835932 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 287E71ABEC2; Mon, 14 Oct 2024 11:00:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728903630; cv=none; b=j3FKzySwP5OqhrBzYg88erNZyfyDkrRAubHBgI0FwOCvC1ErYOU9jAzltDlfljc4iwOS6kIsyvKaiwSSkHtRLzFJUYLC7qXZwake0H96C0O0DA+jxik+BrfPX8VGh3xCxpmjPHsElV9APniINFKYMSbWdkyaExCu6O8fRutOq58= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728903630; c=relaxed/simple; bh=okh2xOh5wgCtK9kRDqrLV21h53I8WCAc98ujORU0NRc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UntcL54c4UNhHx+Nibc5dOHGPpczYPsTVe7MV87PH4ZADklAe3BUteHBijenE2xqS3XbPOw0jpkVM8+xKGlTj68lHD2j6HQWgi+VqFasvxCgUDvy4duffmwmbvY/mGG6rvjYBs5mgDKMj9uThUAbLUR/AyvTBpnBnvfzwgCpiGI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 61C921688; Mon, 14 Oct 2024 04:00:58 -0700 (PDT) Received: from e125769.cambridge.arm.com (e125769.cambridge.arm.com [10.1.196.27]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0597C3F51B; Mon, 14 Oct 2024 04:00:25 -0700 (PDT) From: Ryan Roberts To: "David S. Miller" , Andrew Morton , Anshuman Khandual , Ard Biesheuvel , Catalin Marinas , David Hildenbrand , Greg Marsden , Herbert Xu , Ivan Ivanov , Kalesh Singh , Marc Zyngier , Mark Rutland , Matthias Brugger , Miroslav Benes , Will Deacon Cc: Ryan Roberts , linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1 20/57] crypto: Remove PAGE_SIZE compile-time constant assumption Date: Mon, 14 Oct 2024 11:58:27 +0100 Message-ID: <20241014105912.3207374-20-ryan.roberts@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241014105912.3207374-1-ryan.roberts@arm.com> References: <20241014105514.3206191-1-ryan.roberts@arm.com> <20241014105912.3207374-1-ryan.roberts@arm.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 To prepare for supporting boot-time page size selection, refactor code to remove assumptions about PAGE_SIZE being compile-time constant. Code intended to be equivalent when compile-time page size is active. Updated BUILD_BUG_ON() to test against limit. Signed-off-by: Ryan Roberts --- ***NOTE*** Any confused maintainers may want to read the cover note here for context: https://lore.kernel.org/all/20241014105514.3206191-1-ryan.roberts@arm.com/ crypto/lskcipher.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/crypto/lskcipher.c b/crypto/lskcipher.c index cdb4897c63e6f..2b84cefba7cd1 100644 --- a/crypto/lskcipher.c +++ b/crypto/lskcipher.c @@ -79,8 +79,8 @@ static int crypto_lskcipher_crypt_unaligned( u8 *tiv; u8 *p; - BUILD_BUG_ON(MAX_CIPHER_BLOCKSIZE > PAGE_SIZE || - MAX_CIPHER_ALIGNMASK >= PAGE_SIZE); + BUILD_BUG_ON(MAX_CIPHER_BLOCKSIZE > PAGE_SIZE_MIN || + MAX_CIPHER_ALIGNMASK >= PAGE_SIZE_MIN); tiv = kmalloc(PAGE_SIZE, GFP_ATOMIC); if (!tiv)