From patchwork Mon Dec 6 16:05:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 12694918 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 A21B0C433EF for ; Mon, 6 Dec 2021 16:18:43 +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=FCAGRz28rRdc3mU/8MGtfKUGFEXQxwtSdpYHGzzvJSU=; b=Sh+LCZg2Lgmwjt RfqjlAK4/gzbwnDhsy5gT8t2vbTvh+cOwyNfJqcYCzAG09nc52rh3fF3oxedoNt7BkVb5OSCDPoH0 pM7AOcjIuGaUQ3YpRMmAQnl+Lqc6mpXqxGUgmEn72f1aISBf56AESQ0okzjUSk96ii6UjOb/eilzn H2fHOMJt1HwbLJdvo82CTArv7Nf642mNIwcNfpCcHDraxDnQ5geECDvJLC0GXZxYZx+2ITBfj23KI /Aioz1KJZhDaIIzlY/1rETrsT4xx1JBpfBdE++dFLmYSRNP6vxPV/FhaBFI5MyL2AOcmqggwCWgbE elXJfAuvpe/AjJgOVk4Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1muGcq-004hU4-Gk; Mon, 06 Dec 2021 16:14:00 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1muGbj-004gkE-8w; Mon, 06 Dec 2021 16:12:52 +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 sin.source.kernel.org (Postfix) with ESMTPS id 6E6C8CE16CA; Mon, 6 Dec 2021 16:12:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9264BC341C5; Mon, 6 Dec 2021 16:12:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638807167; bh=r7gcAJ+SiOVCAHRDLO1HycpA8Xew8/od/ps6s+RbLT0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y15auMAoKthCqJEM0wuPExbfzU75NtRn6bCJTQluZ4JnJynmw+hpz2PIXP8VjI8YT 24o7fb1c4H+ncYPmF5i4yi3/ZGOsXKTJ3e9JMjVMDoVPNGp9mEO7yHQfCzqVx+bDIv 0gCyTFq1txPzwYKMdMs5vtfRKyZ8cxFY8XJvpN9pwlXdDP/jXFr6pddVDZoLTqwKIr apd28d09ruTtCyR3ngCTFtiYu4yI5fclaq8y5tf8huESE67r8WfJBwovHeybVjtFqz a9qfiTjpdi4/cKOcgk7sYveF53Q6CHJjVBoLZlnijAeG9MIZi2nIP6kRnW6v4wOlDu BVFwdMW2q3t+w== From: Jisheng Zhang To: Russell King , Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, hpa@zytor.com, Eric Biederman Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, kexec@lists.infradead.org, Alexandre ghiti Subject: [PATCH v2 4/5] arm64: mm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef Date: Tue, 7 Dec 2021 00:05:13 +0800 Message-Id: <20211206160514.2000-5-jszhang@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211206160514.2000-1-jszhang@kernel.org> References: <20211206160514.2000-1-jszhang@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211206_081251_511124_982BCAC2 X-CRM114-Status: GOOD ( 12.89 ) 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 Replace the conditional compilation using "#ifdef CONFIG_KEXEC_CORE" by a check for "IS_ENABLED(CONFIG_KEXEC_CORE)", to simplify the code and increase compile coverage. Signed-off-by: Jisheng Zhang Acked-by: Catalin Marinas --- arch/arm64/mm/init.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index a8834434af99..b4b8b4dc2d31 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -64,7 +64,6 @@ EXPORT_SYMBOL(memstart_addr); */ phys_addr_t arm64_dma_phys_limit __ro_after_init; -#ifdef CONFIG_KEXEC_CORE /* * reserve_crashkernel() - reserves memory for crash kernel * @@ -78,6 +77,9 @@ static void __init reserve_crashkernel(void) unsigned long long crash_max = arm64_dma_phys_limit; int ret; + if (!IS_ENABLED(CONFIG_KEXEC_CORE)) + return; + ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(), &crash_size, &crash_base); /* no crashkernel= or invalid value specified */ @@ -110,11 +112,6 @@ static void __init reserve_crashkernel(void) crashk_res.start = crash_base; crashk_res.end = crash_base + crash_size - 1; } -#else -static void __init reserve_crashkernel(void) -{ -} -#endif /* CONFIG_KEXEC_CORE */ /* * Return the maximum physical address for a zone accessible by the given bits