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PAGE_SIZE is used in included kernel uapi headers. To prevent collosion of definition, we discard PAGE_SIZE from defined by libc and take QEMU's variable. [1]: https://pubs.opengroup.org/onlinepubs/7908799/xsh/limits.h.html Signed-off-by: Jiaxun Yang --- accel/kvm/kvm-all.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 389eaace72..3feb17d965 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -58,6 +58,9 @@ /* KVM uses PAGE_SIZE in its definition of KVM_COALESCED_MMIO_MAX. We * need to use the real host PAGE_SIZE, as that's what KVM will use. */ +#ifdef PAGE_SIZE +#undef PAGE_SIZE +#endif #define PAGE_SIZE qemu_real_host_page_size //#define DEBUG_KVM -- 2.30.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3CE5C433E0 for ; Mon, 18 Jan 2021 06:52:36 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 74C112231F for ; 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Mon, 18 Jan 2021 01:38:59 -0500 (EST) From: Jiaxun Yang To: qemu-devel@nongnu.org Subject: [PATCH v2 7/9] accel/kvm: avoid using predefined PAGE_SIZE Date: Mon, 18 Jan 2021 14:38:06 +0800 Message-Id: <20210118063808.12471-8-jiaxun.yang@flygoat.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210118063808.12471-1-jiaxun.yang@flygoat.com> References: <20210118063808.12471-1-jiaxun.yang@flygoat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=64.147.123.18; envelope-from=jiaxun.yang@flygoat.com; helo=wnew4-smtp.messagingengine.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_SORBS_WEB=1.5, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Laurent Vivier , Thomas Huth , Viktor Prutyanov , kvm@vger.kernel.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Alistair Francis , Greg Kurz , Wainer dos Santos Moschetta , Max Reitz , qemu-ppc@nongnu.org, Kevin Wolf , Paolo Bonzini , qemu-block@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" As per POSIX specification of limits.h [1], OS libc may define PAGE_SIZE in limits.h. PAGE_SIZE is used in included kernel uapi headers. To prevent collosion of definition, we discard PAGE_SIZE from defined by libc and take QEMU's variable. [1]: https://pubs.opengroup.org/onlinepubs/7908799/xsh/limits.h.html Signed-off-by: Jiaxun Yang --- accel/kvm/kvm-all.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 389eaace72..3feb17d965 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -58,6 +58,9 @@ /* KVM uses PAGE_SIZE in its definition of KVM_COALESCED_MMIO_MAX. We * need to use the real host PAGE_SIZE, as that's what KVM will use. */ +#ifdef PAGE_SIZE +#undef PAGE_SIZE +#endif #define PAGE_SIZE qemu_real_host_page_size //#define DEBUG_KVM -- 2.30.0