Received: by 2002:a25:ad19:0:0:0:0:0 with SMTP id y25csp3780967ybi; Mon, 29 Jul 2019 12:30:18 -0700 (PDT) X-Google-Smtp-Source: APXvYqzC8r+byQnULDnN6P7RWr53AhhuPLj3HP5PIOueoetiF7uYu5G9quWsWeOPBsJ9tNvWx0Kh X-Received: by 2002:a17:90a:bb0c:: with SMTP id u12mr115396041pjr.132.1564428618689; Mon, 29 Jul 2019 12:30:18 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564428618; cv=none; d=google.com; s=arc-20160816; b=flyQe4uvUS8pY+VCh58AHhc+DkRHwW8GZaARSqCZxOPfJ69DqUM5T9wOBXODAbh7lo PVllvLaJlzbrHyGLZZHV5j2yZot5BAQmetTPvq/w9LaggU9V2S8Ok+3xQ8/VHKji5jbD pKaifXjiKxFRbbPeNXic+ybm7FpcsvMBVL1dCii5hY09m4JB+dZrPVB6DJh2e6k0vBz0 DUpYN37i5rWKKfUfnebn5s+Sa+VGtYCE64DIE9tdHr+NFyxemwPaAEesPySpnTIyu5Mc Cy1e5CxhU7ymjmklMUoHauLIC5wXEJmBo2kyowq35HTjEJcKTr8Cxs4/l/TlCP+vn5ON sBmQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:from:subject:cc:to:message-id:date; bh=RCHdtZ25tTFwKb9yfukdvtwsQHyL1Ixk73UX8bBrCE0=; b=0ZDuq9ehXXaz7r+TtaHJjogwvP7jV3atzv+WRT3AFoqy/napWzbGH4ZUWZYZpwV6TR ims7exBvIOgEUs+KwgeAMACw2HwNhSC6Hze7XtN4aFolzNtEG9X2+EcWsyXRjtbjDxRy vcf3L5pbHr4awUfoOf2NfefNoEyQw51IX8nIY4lxsRmq/d2sOLXYbGRPpjnKHDebDYYl wX6lKSibCHAgl3y5W3gJVLbMz1u3Ofw1W4rbvE2EbgJ2EdugBb/e6vtKbgDBCS7mnqyH zgxjy3OD06yCY1nleRUMmwCDfT6y2Gmr3eqvY6ZIKfTR1NtSBZeSR62+msQzAhBpEmRQ oPbA== 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 141si27045014pgh.166.2019.07.29.12.30.03; Mon, 29 Jul 2019 12:30:18 -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 S1729053AbfG2R5d (ORCPT + 99 others); Mon, 29 Jul 2019 13:57:33 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:36792 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727884AbfG2R5d (ORCPT ); Mon, 29 Jul 2019 13:57:33 -0400 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::d71]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 6124B14015B10; Mon, 29 Jul 2019 10:57:32 -0700 (PDT) Date: Mon, 29 Jul 2019 10:57:31 -0700 (PDT) Message-Id: <20190729.105731.2008954478313187190.davem@davemloft.net> To: martin.blumenstingl@googlemail.com Cc: peppe.cavallaro@st.com, alexandre.torgue@st.com, joabreu@synopsys.com, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org Subject: Re: [PATCH] net: stmmac: manage errors returned by of_get_mac_address() From: David Miller In-Reply-To: <20190727192137.27881-1-martin.blumenstingl@googlemail.com> References: <20190727192137.27881-1-martin.blumenstingl@googlemail.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 29 Jul 2019 10:57:32 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Martin Blumenstingl Date: Sat, 27 Jul 2019 21:21:37 +0200 > Commit d01f449c008a ("of_net: add NVMEM support to of_get_mac_address") > added support for reading the MAC address from an nvmem-cell. This > required changing the logic to return an error pointer upon failure. > > If stmmac is loaded before the nvmem provider driver then > of_get_mac_address() return an error pointer with -EPROBE_DEFER. > > Propagate this error so the stmmac driver will be probed again after the > nvmem provider driver is loaded. > Default to a random generated MAC address in case of any other error, > instead of using the error pointer as MAC address. > > Fixes: d01f449c008a ("of_net: add NVMEM support to of_get_mac_address") > Signed-off-by: Martin Blumenstingl Applied, thanks.