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Thu, 12 Mar 2020 21:36:12 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 30B9F6E04C; Thu, 12 Mar 2020 21:36:11 +0000 (GMT) Received: from oc6857751186.ibm.com (unknown [9.160.72.189]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Thu, 12 Mar 2020 21:36:10 +0000 (GMT) Subject: Re: [PATCH -next] PCI: rpaphp: remove set but not used variable 'value' To: Bjorn Helgaas , Chen Zhou References: <20200312144157.GA110750@google.com> From: Tyrel Datwyler Message-ID: Date: Thu, 12 Mar 2020 14:36:10 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200312144157.GA110750@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-03-12_15:2020-03-11, 2020-03-12 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 impostorscore=0 phishscore=0 mlxlogscore=999 spamscore=0 priorityscore=1501 mlxscore=0 adultscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003120107 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: paulus@samba.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 3/12/20 7:41 AM, Bjorn Helgaas wrote: > On Thu, Mar 12, 2020 at 09:38:02AM -0500, Bjorn Helgaas wrote: >> On Thu, Mar 12, 2020 at 10:04:12PM +0800, Chen Zhou wrote: >>> Fixes gcc '-Wunused-but-set-variable' warning: >>> >>> drivers/pci/hotplug/rpaphp_core.c: In function is_php_type: >>> drivers/pci/hotplug/rpaphp_core.c:291:16: warning: >>> variable value set but not used [-Wunused-but-set-variable] >>> >>> Reported-by: Hulk Robot >>> Signed-off-by: Chen Zhou >> >> Michael, if you want this: >> >> Acked-by: Bjorn Helgaas >> >> If you don't mind, edit the subject to follow the convention, e.g., >> >> PCI: rpaphp: Remove unused variable 'value' >> >> Apparently simple_strtoul() is deprecated and we're supposed to use >> kstrtoul() instead. Looks like kstrtoul() might simplify the code a >> little, too, e.g., >> >> if (kstrtoul(drc_type, 0, &value) == 0) >> return 1; >> >> return 0; > > I guess there are several other uses of simple_strtoul() in this file. > Not sure if it's worth changing them all, just this one, or just the > patch below as-is. If we are going to change one might as well do them all at once. If the original submitter wants to send the follow up that is fine, or I can send a patch when I have a minute. -Tyrel > >>> --- >>> drivers/pci/hotplug/rpaphp_core.c | 3 +-- >>> 1 file changed, 1 insertion(+), 2 deletions(-) >>> >>> diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c >>> index e408e40..5d871ef 100644 >>> --- a/drivers/pci/hotplug/rpaphp_core.c >>> +++ b/drivers/pci/hotplug/rpaphp_core.c >>> @@ -288,11 +288,10 @@ EXPORT_SYMBOL_GPL(rpaphp_check_drc_props); >>> >>> static int is_php_type(char *drc_type) >>> { >>> - unsigned long value; >>> char *endptr; >>> >>> /* PCI Hotplug nodes have an integer for drc_type */ >>> - value = simple_strtoul(drc_type, &endptr, 10); >>> + simple_strtoul(drc_type, &endptr, 10); >>> if (endptr == drc_type) >>> return 0; >>> >>> -- >>> 2.7.4 >>>