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=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 2D675C32792 for ; Mon, 30 Sep 2019 14:50:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E1CFD20842 for ; Mon, 30 Sep 2019 14:50:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="Xg7DnbNB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731829AbfI3Ous (ORCPT ); Mon, 30 Sep 2019 10:50:48 -0400 Received: from mail.skyhub.de ([5.9.137.197]:35672 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730809AbfI3Ous (ORCPT ); Mon, 30 Sep 2019 10:50:48 -0400 Received: from zn.tnic (p200300EC2F058B00329C23FFFEA6A903.dip0.t-ipconnect.de [IPv6:2003:ec:2f05:8b00:329c:23ff:fea6:a903]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id BCE911EC0982; Mon, 30 Sep 2019 16:50:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1569855047; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=FnN7DQgxKKbUVQ9VZB4DQm/rTtWbZxtoBke2HT0KdQM=; b=Xg7DnbNBRHFAyGpxCZbCd8drgk71sTW7EWTmw3LkaztKE6ifraZjIrc714wogsQleVMzyr FxUmaVwUGve4IAysmE1lPrlqpfU/Oi5oFvE90FSpNkyfuYqFYZ7auULxKmmdFwldZTXYQd 0lcCMnhKN+o07QViVoIzfaCqork/P/I= Date: Mon, 30 Sep 2019 16:50:46 +0200 From: Borislav Petkov To: Hanna Hawa Cc: mchehab@kernel.org, james.morse@arm.com, rrichter@marvell.com, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org, dwmw@amazon.co.uk, benh@amazon.com, ronenk@amazon.com, talel@amazon.com, jonnyc@amazon.com, hanochu@amazon.com Subject: Re: [PATCH v4 1/2] edac: Add an API for edac device to report for multiple errors Message-ID: <20190930145046.GH29694@zn.tnic> References: <20190923191741.29322-1-hhhawa@amazon.com> <20190923191741.29322-2-hhhawa@amazon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190923191741.29322-2-hhhawa@amazon.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-edac-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org On Mon, Sep 23, 2019 at 08:17:40PM +0100, Hanna Hawa wrote: > +void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, > + int inst_nr, int block_nr, const char *msg) > +{ > + __edac_device_handle_ce(edac_dev, 1, inst_nr, block_nr, msg); > +} > +EXPORT_SYMBOL_GPL(edac_device_handle_ce); Eww, I don't like that: exporting the function *and* the __ counterpart. The user will get confused and that is unnecessary. See below for a better version. This way you solve the whole deal with a single patch. --- From: Hanna Hawa Date: Mon, 23 Sep 2019 20:17:40 +0100 Subject: [PATCH] EDAC/device: Rework error logging API Make the main workhorse the "count" functions which can log a @count of errors. Have the current APIs edac_device_handle_{ce,ue}() call the _count() variants and this way keep the exported symbols number unchanged. [ bp: Rewrite. ] Signed-off-by: Hanna Hawa Signed-off-by: Borislav Petkov Cc: benh@amazon.com Cc: dwmw@amazon.co.uk Cc: hanochu@amazon.com Cc: James Morse Cc: jonnyc@amazon.com Cc: linux-edac Cc: Mauro Carvalho Chehab Cc: ronenk@amazon.com Cc: talel@amazon.com Cc: Tony Luck Link: https://lkml.kernel.org/r/20190923191741.29322-2-hhhawa@amazon.com --- drivers/edac/edac_device.c | 44 ++++++++++++++++--------------- drivers/edac/edac_device.h | 54 ++++++++++++++++++++++++++++++-------- 2 files changed, 66 insertions(+), 32 deletions(-) diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c index 65cf2b9355c4..d4d8bed5b55d 100644 --- a/drivers/edac/edac_device.c +++ b/drivers/edac/edac_device.c @@ -555,8 +555,9 @@ static inline int edac_device_get_panic_on_ue(struct edac_device_ctl_info return edac_dev->panic_on_ue; } -void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, - int inst_nr, int block_nr, const char *msg) +void edac_device_handle_ce_count(struct edac_device_ctl_info *edac_dev, + unsigned int count, int inst_nr, int block_nr, + const char *msg) { struct edac_device_instance *instance; struct edac_device_block *block = NULL; @@ -582,23 +583,24 @@ void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, if (instance->nr_blocks > 0) { block = instance->blocks + block_nr; - block->counters.ce_count++; + block->counters.ce_count += count; } /* Propagate the count up the 'totals' tree */ - instance->counters.ce_count++; - edac_dev->counters.ce_count++; + instance->counters.ce_count += count; + edac_dev->counters.ce_count += count; if (edac_device_get_log_ce(edac_dev)) edac_device_printk(edac_dev, KERN_WARNING, - "CE: %s instance: %s block: %s '%s'\n", - edac_dev->ctl_name, instance->name, - block ? block->name : "N/A", msg); + "CE: %s instance: %s block: %s count: %d '%s'\n", + edac_dev->ctl_name, instance->name, + block ? block->name : "N/A", count, msg); } -EXPORT_SYMBOL_GPL(edac_device_handle_ce); +EXPORT_SYMBOL_GPL(edac_device_handle_ce_count); -void edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, - int inst_nr, int block_nr, const char *msg) +void edac_device_handle_ue_count(struct edac_device_ctl_info *edac_dev, + unsigned int count, int inst_nr, int block_nr, + const char *msg) { struct edac_device_instance *instance; struct edac_device_block *block = NULL; @@ -624,22 +626,22 @@ void edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, if (instance->nr_blocks > 0) { block = instance->blocks + block_nr; - block->counters.ue_count++; + block->counters.ue_count += count; } /* Propagate the count up the 'totals' tree */ - instance->counters.ue_count++; - edac_dev->counters.ue_count++; + instance->counters.ue_count += count; + edac_dev->counters.ue_count += count; if (edac_device_get_log_ue(edac_dev)) edac_device_printk(edac_dev, KERN_EMERG, - "UE: %s instance: %s block: %s '%s'\n", - edac_dev->ctl_name, instance->name, - block ? block->name : "N/A", msg); + "UE: %s instance: %s block: %s count: %d '%s'\n", + edac_dev->ctl_name, instance->name, + block ? block->name : "N/A", count, msg); if (edac_device_get_panic_on_ue(edac_dev)) - panic("EDAC %s: UE instance: %s block %s '%s'\n", - edac_dev->ctl_name, instance->name, - block ? block->name : "N/A", msg); + panic("EDAC %s: UE instance: %s block %s count: %d '%s'\n", + edac_dev->ctl_name, instance->name, + block ? block->name : "N/A", count, msg); } -EXPORT_SYMBOL_GPL(edac_device_handle_ue); +EXPORT_SYMBOL_GPL(edac_device_handle_ue_count); diff --git a/drivers/edac/edac_device.h b/drivers/edac/edac_device.h index 1aaba74ae411..c4c0e0bdce14 100644 --- a/drivers/edac/edac_device.h +++ b/drivers/edac/edac_device.h @@ -286,27 +286,60 @@ extern int edac_device_add_device(struct edac_device_ctl_info *edac_dev); extern struct edac_device_ctl_info *edac_device_del_device(struct device *dev); /** - * edac_device_handle_ue(): - * perform a common output and handling of an 'edac_dev' UE event + * Log correctable errors. * * @edac_dev: pointer to struct &edac_device_ctl_info - * @inst_nr: number of the instance where the UE error happened - * @block_nr: number of the block where the UE error happened + * @inst_nr: number of the instance where the CE error happened + * @count: Number of errors to log. + * @block_nr: number of the block where the CE error happened + * @msg: message to be printed + */ +void edac_device_handle_ce_count(struct edac_device_ctl_info *edac_dev, + unsigned int count, int inst_nr, int block_nr, + const char *msg); + +/** + * Log uncorrectable errors. + * + * @edac_dev: pointer to struct &edac_device_ctl_info + * @inst_nr: number of the instance where the CE error happened + * @count: Number of errors to log. + * @block_nr: number of the block where the CE error happened * @msg: message to be printed */ -extern void edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, - int inst_nr, int block_nr, const char *msg); +void edac_device_handle_ue_count(struct edac_device_ctl_info *edac_dev, + unsigned int count, int inst_nr, int block_nr, + const char *msg); + /** - * edac_device_handle_ce(): - * perform a common output and handling of an 'edac_dev' CE event + * edac_device_handle_ce(): Log a single correctable error * * @edac_dev: pointer to struct &edac_device_ctl_info * @inst_nr: number of the instance where the CE error happened * @block_nr: number of the block where the CE error happened * @msg: message to be printed */ -extern void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, - int inst_nr, int block_nr, const char *msg); +static inline void +edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, int inst_nr, + int block_nr, const char *msg) +{ + edac_device_handle_ce_count(edac_dev, 1, inst_nr, block_nr, msg); +} + +/** + * edac_device_handle_ue(): Log a single uncorrectable error + * + * @edac_dev: pointer to struct &edac_device_ctl_info + * @inst_nr: number of the instance where the UE error happened + * @block_nr: number of the block where the UE error happened + * @msg: message to be printed + */ +static inline void +edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, int inst_nr, + int block_nr, const char *msg) +{ + edac_device_handle_ue_count(edac_dev, 1, inst_nr, block_nr, msg); +} /** * edac_device_alloc_index: Allocate a unique device index number @@ -316,5 +349,4 @@ extern void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, */ extern int edac_device_alloc_index(void); extern const char *edac_layer_name[]; - #endif -- 2.21.0 -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette