From patchwork Tue May 16 15:45:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13243323 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 73B09C77B75 for ; Tue, 16 May 2023 15:46:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=eiBkungaqC4oxSnL+Kao08fsqVyldSne2Ecy+H7J9sg=; b=dVhGtHYTQ4BYi7 IGds4wwtDp/m3sF5oWUnqq1g9pI1585pN9tZVzjG6PiXKYQYHIE1pTAvbQ37/OhyulIaygEWF2wZe VYv4Es9Px/On0SwaeYTB88ixS1gfbRrPnMETPUY8Jm/rebKsKDUwpdeAfSoRPMpKe4nM4kKl7kSMF tILARUZXIYw0VslHxOFxIJFO0+TPF7CXG2Hl72D/GqDhqafgziDGLKUrCQwSYZYGk9CJCpBhO6DU7 9egDn/U0E6+2iXu8Hm1uoVH8BQg36WN64BVHNkMSpc0cH43KR7iFVSVKq780XDuKa0g/pPEOS7vq/ 6OYjOeKu3ZQslef0nnAQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pywsi-006JUj-2n; Tue, 16 May 2023 15:46:32 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pywsa-006JQa-34 for linux-arm-kernel@lists.infradead.org; Tue, 16 May 2023 15:46:26 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 85B8B63B8C; Tue, 16 May 2023 15:46:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B8394C4339E; Tue, 16 May 2023 15:46:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684251984; bh=QS657WnsM8vdXz+21VxN72PAoIydoXyXYs6qMuHutIE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=htRLSIukiytswKjvEU7b5krt5Y3Y7ljURy8QF8CGb+x2h1ssvwjVk6Pwqv4ut3Esw CB1OiulX7s10M9KVGVETJOiHcuxpyhee8hUZkmO5UEaMi+KR8LO8hYWzalhm3RlHqo 09xGWJMYFj2+fN7HqZvVXQrPQTX7Y7qmuRJ61d3Y/JHUn94ohkbZ4djv+Oyi/Mtl+w XedetTwh9Y23tsy+DfBDvhPwgSkMUwAXkk+Ad6STis8PVcvL9li3Po/5JkWHc9yLNX Yq2AjCQlVGQybK9eMHfvOn6iETC5ttftvRPasbRn7XnG8UUlUFRX/e9rR3DVFZu0bl cIvS1mbMNeQRw== From: Arnd Bergmann To: Russell King Cc: Arnd Bergmann , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Oleg Nesterov , "Rafael J. Wysocki" , Pavel Machek , Linus Walleij , Ard Biesheuvel , Kees Cook , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 02/16] ARM: traps: hide unused functions on NOMMU Date: Tue, 16 May 2023 17:45:51 +0200 Message-Id: <20230516154605.517690-3-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230516154605.517690-1-arnd@kernel.org> References: <20230516154605.517690-1-arnd@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230516_084625_032783_0DD87614 X-CRM114-Status: GOOD ( 14.07 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann A couple of functions in this file are only used on MMU-enabled builds, and never even declared otherwise, causing these build warnings: arch/arm/kernel/traps.c:759:6: error: no previous prototype for '__pte_error' [-Werror=missing-prototypes] arch/arm/kernel/traps.c:764:6: error: no previous prototype for '__pmd_error' [-Werror=missing-prototypes] arch/arm/kernel/traps.c:769:6: error: no previous prototype for '__pgd_error' [-Werror=missing-prototypes] Protect these in an #ifdef to avoid the warnings and save a little bit of .text space. Signed-off-by: Arnd Bergmann --- arch/arm/kernel/traps.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 40c7c807d67f..3bad79db5d6e 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -756,6 +756,7 @@ void __readwrite_bug(const char *fn) } EXPORT_SYMBOL(__readwrite_bug); +#ifdef CONFIG_MMU void __pte_error(const char *file, int line, pte_t pte) { pr_err("%s:%d: bad pte %08llx.\n", file, line, (long long)pte_val(pte)); @@ -770,6 +771,7 @@ void __pgd_error(const char *file, int line, pgd_t pgd) { pr_err("%s:%d: bad pgd %08llx.\n", file, line, (long long)pgd_val(pgd)); } +#endif asmlinkage void __div0(void) {