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[2620:137:e000::1:20]) by mx.google.com with ESMTP id go37-20020a1709070da500b0072b4b197fa4si15921898ejc.88.2022.07.25.08.12.31; Mon, 25 Jul 2022 08:12:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=arm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235526AbiGYPHu (ORCPT + 99 others); Mon, 25 Jul 2022 11:07:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229460AbiGYPHt (ORCPT ); Mon, 25 Jul 2022 11:07:49 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DAA9112D0A for ; Mon, 25 Jul 2022 08:07:47 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3F9EF2B; Mon, 25 Jul 2022 08:07:48 -0700 (PDT) Received: from [10.1.30.135] (e127744.cambridge.arm.com [10.1.30.135]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 65BC43F73D; Mon, 25 Jul 2022 08:07:46 -0700 (PDT) Subject: Re: [PATCH v1 1/4] coresight: Remove unused function parameter To: James Clark , coresight@lists.linaro.org, suzuki.poulose@arm.com Cc: mathieu.poirier@linaro.org, mike.leach@linaro.org, linux-kernel@vger.kernel.org References: <20220725145221.517776-1-james.clark@arm.com> <20220725145221.517776-2-james.clark@arm.com> From: German Gomez Message-ID: <9292b1c9-25ab-1137-1a34-3783f3835f2b@arm.com> Date: Mon, 25 Jul 2022 16:07:40 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20220725145221.517776-2-james.clark@arm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-US X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00,NICE_REPLY_A, RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 25/07/2022 15:52, James Clark wrote: > The ability to use a custom function in this sysfs show function isn't > used so remove it. > > No functional changes. > > Signed-off-by: James Clark > --- > drivers/hwtracing/coresight/coresight-priv.h | 16 ++++------------ > 1 file changed, 4 insertions(+), 12 deletions(-) > > diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h > index ff1dd2092ac5..f2458b794ef3 100644 > --- a/drivers/hwtracing/coresight/coresight-priv.h > +++ b/drivers/hwtracing/coresight/coresight-priv.h > @@ -40,31 +40,23 @@ > #define ETM_MODE_EXCL_KERN BIT(30) > #define ETM_MODE_EXCL_USER BIT(31) > > -typedef u32 (*coresight_read_fn)(const struct device *, u32 offset); > -#define __coresight_simple_func(type, func, name, lo_off, hi_off) \ > +#define __coresight_simple_show(type, name, lo_off, hi_off) \ > static ssize_t name##_show(struct device *_dev, \ > struct device_attribute *attr, char *buf) \ > { \ > type *drvdata = dev_get_drvdata(_dev->parent); \ > - coresight_read_fn fn = func; \ > u64 val; \ > pm_runtime_get_sync(_dev->parent); \ > - if (fn) \ > - val = (u64)fn(_dev->parent, lo_off); \ > - else \ > - val = coresight_read_reg_pair(drvdata->base, \ > - lo_off, hi_off); \ > + val = coresight_read_reg_pair(drvdata->base, lo_off, hi_off); \ > pm_runtime_put_sync(_dev->parent); \ > return scnprintf(buf, PAGE_SIZE, "0x%llx\n", val); \ Sorry for the slightly out-of-scope reply, but I think you could also  take the opportunity to replace scnprintf() calls with sysfs_emit()    calls, if you think it is worth it. Thanks, German > } \ > static DEVICE_ATTR_RO(name) > > -#define coresight_simple_func(type, func, name, offset) \ > - __coresight_simple_func(type, func, name, offset, -1) > #define coresight_simple_reg32(type, name, offset) \ > - __coresight_simple_func(type, NULL, name, offset, -1) > + __coresight_simple_show(type, name, offset, -1) > #define coresight_simple_reg64(type, name, lo_off, hi_off) \ > - __coresight_simple_func(type, NULL, name, lo_off, hi_off) > + __coresight_simple_show(type, name, lo_off, hi_off) > > extern const u32 coresight_barrier_pkt[4]; > #define CORESIGHT_BARRIER_PKT_SIZE (sizeof(coresight_barrier_pkt))