From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out30-54.freemail.mail.aliyun.com ([115.124.30.54]:58364 "EHLO out30-54.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389205AbfKGOdD (ORCPT ); Thu, 7 Nov 2019 09:33:03 -0500 From: shile.zhang@linux.alibaba.com Subject: [RFC PATCH 3/4] x86/unwind/orc: Skip sorting if BUILDTIME_ORCTABLE_SORT is configured Date: Thu, 7 Nov 2019 22:32:04 +0800 Message-Id: <20191107143205.206606-4-shile.zhang@linux.alibaba.com> In-Reply-To: <20191107143205.206606-1-shile.zhang@linux.alibaba.com> References: <20191107143205.206606-1-shile.zhang@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kbuild-owner@vger.kernel.org List-ID: To: Masahiro Yamada , Michal Marek , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Josh Poimboeuf , x86@kernel.org Cc: "H . Peter Anvin" , linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, Shile Zhang From: Shile Zhang The orc_unwind and orc_unwind_ip tables are sorted at build time if BUILDTIME_ORCTABLE_SORT is configured, skip sort at boot time. Signed-off-by: Shile Zhang --- arch/x86/kernel/unwind_orc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c index 332ae6530fa8..2c2fa9ef116e 100644 --- a/arch/x86/kernel/unwind_orc.c +++ b/arch/x86/kernel/unwind_orc.c @@ -273,9 +273,11 @@ void __init unwind_init(void) return; } +#ifndef CONFIG_BUILDTIME_ORCTABLE_SORT /* Sort the .orc_unwind and .orc_unwind_ip tables: */ sort(__start_orc_unwind_ip, num_entries, sizeof(int), orc_sort_cmp, orc_sort_swap); +#endif /* Initialize the fast lookup table: */ lookup_num_blocks = orc_lookup_end - orc_lookup; -- 2.24.0.rc2