Received: by 2002:ac0:a581:0:0:0:0:0 with SMTP id m1-v6csp660798imm; Wed, 4 Jul 2018 03:53:12 -0700 (PDT) X-Google-Smtp-Source: AAOMgpcT+vOgZHJI58SPU3OdSm/yAaEE6M2SdDySKPsxY0vUWg9p+QdNQmVSeLK2fsz0+poFQfLb X-Received: by 2002:a62:4808:: with SMTP id v8-v6mr1653348pfa.89.1530701592529; Wed, 04 Jul 2018 03:53:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1530701592; cv=none; d=google.com; s=arc-20160816; b=HvTRI9cW6aDAvsG7reilhdqyUvQgwCqcL76mL7pO+ZfFHjn+SYJgd6BQg5IuIFkHsN RQ2hPF4+oVHWXLQYjapYUrNpiWVlqiMXOjOLTXDWzhhEfDq8TGHX2Lvy3RmwHzjP2tv0 kTjebl9ZSjachhFWZFXy3I5GVRDys+YexRmhl5Az37PUIY0kjndzzdecRl9chSBpn7/5 aFlPOovZLs+ENdKnYJm1lsyweHQnbimwy8Fja4rpm6hsbTwPYFziOOjXd0f7EE/aRrdn FyfoliBvx6Si7+oKTGk6H8qp8FVxC8kj7XhfdUe0O5p8fd9VmdoYaAfETPKx36Cb2/dG /zUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=JWhuggoE2Xe1MkPF1TbwDE5tImqY5/IhqBft4M90Rl8=; b=wjz38bKQr1IQ/soDacBWE1MvUiUQBHd4qcRbXZroTeBT/7RtfZj8lsOAJBdV3TZWgO AXXhRez3JMHQB8B0r6+54UTydtgjWutyMQt2uSSofKpCYudd+te2yKyHNW8p3KtDUDDe YtwJssblxUHc5oj+P0uDCB0fKVlN/9+PkUx3YrPWopjPLM/z46P91I6uHNfd9BNxsa2j VA+e300WTSYN9SIbroVcROMvNI831d9Oz2isb1E7ftH5n/BwOdaEOQcf1pozEIiElE6X OIICymVi6WlGxJvE6+pDeSIbgh10YVZnNVb0ixe1JczZfuOsgrJAydbuuFAtLfo6A9Fq 9KLg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id u24-v6si3254003pgk.72.2018.07.04.03.52.58; Wed, 04 Jul 2018 03:53:12 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933429AbeGDKwX (ORCPT + 99 others); Wed, 4 Jul 2018 06:52:23 -0400 Received: from smtp2200-217.mail.aliyun.com ([121.197.200.217]:46289 "EHLO smtp2200-217.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932399AbeGDKwW (ORCPT ); Wed, 4 Jul 2018 06:52:22 -0400 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.217671|-1;CH=green;FP=0|0|0|0|0|-1|-1|-1;HT=e02c03301;MF=ren_guo@c-sky.com;NM=1;PH=DS;RN=11;RT=11;SR=0;TI=SMTPD_---.CMBRXui_1530701510; Received: from localhost(mailfrom:ren_guo@c-sky.com fp:SMTPD_---.CMBRXui_1530701510) by smtp.aliyun-inc.com(10.147.41.231); Wed, 04 Jul 2018 18:51:50 +0800 Date: Wed, 4 Jul 2018 18:51:50 +0800 From: Guo Ren To: Arnd Bergmann Cc: linux-arch , Linux Kernel Mailing List , Thomas Gleixner , Daniel Lezcano , Jason Cooper , c-sky_gcc_upstream@c-sky.com, gnu-csky@mentor.com, thomas.petazzoni@bootlin.com, wbx@uclibc-ng.org, Greentime Hu Subject: Re: [PATCH V2 13/19] csky: Library functions Message-ID: <20180704105150.GA21269@guoren> References: <7a1490b307d8e62cebe80ebc03fea6bad8b0f227.1530465326.git.ren_guo@c-sky.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 03, 2018 at 10:04:57PM +0200, Arnd Bergmann wrote: > It's better to avoid relying on libgcc here. Please use the > CONFIG_GENERIC_LIB_ASHLDI3/ASHRDI3/LSHRDI3/etc > helpers that we already have in the kernel. Ok, I'll try Guo Ren