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Mon, 24 Oct 2022 23:17:04 +0000 Message-ID: Date: Mon, 24 Oct 2022 16:17:01 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.3.3 Subject: Re: [PATCH 02/14] platform/x86/intel/ifs: Propagate load failure error code Content-Language: en-US To: Sohil Mehta CC: , , , , , , , , , , , , , , , , References: <20221021203413.1220137-1-jithu.joseph@intel.com> <20221021203413.1220137-3-jithu.joseph@intel.com> <4028a1c7-ed84-37a8-1d94-178b5aa201a9@intel.com> From: "Joseph, Jithu" In-Reply-To: <4028a1c7-ed84-37a8-1d94-178b5aa201a9@intel.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-ClientProxiedBy: SJ0PR05CA0187.namprd05.prod.outlook.com (2603:10b6:a03:330::12) To BYAPR11MB3768.namprd11.prod.outlook.com (2603:10b6:a03:fa::20) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BYAPR11MB3768:EE_|BL1PR11MB5541:EE_ X-MS-Office365-Filtering-Correlation-Id: c4b88ee4-4792-4c93-d89d-08dab615dcdd X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Also, 'Existing implementation' is typically implied and unnecessary. Would something like this be better? > > The reload operation returns a fixed error code to user space regardless of the load failure encountered. Thanks Sohil for the review, will reword as you suggest above > > Modify.. > >> Modify this to propagate the actual error code to user space. >> > > ... > >> diff --git a/drivers/platform/x86/intel/ifs/load.c b/drivers/platform/x86/intel/ifs/load.c >> index d056617ddc85..ebaa1d6a2b18 100644 >> --- a/drivers/platform/x86/intel/ifs/load.c >> +++ b/drivers/platform/x86/intel/ifs/load.c >> @@ -234,7 +234,7 @@ static bool ifs_image_sanity_check(struct device *dev, const struct microcode_he >>    * Load ifs image. Before loading ifs module, the ifs image must be located >>    * in /lib/firmware/intel/ifs and named as {family/model/stepping}.{testname}. >>    */ >> -void ifs_load_firmware(struct device *dev) >> +int ifs_load_firmware(struct device *dev) >>   { >>       struct ifs_data *ifsd = ifs_get_data(dev); >>       const struct firmware *fw; >> @@ -263,4 +263,6 @@ void ifs_load_firmware(struct device *dev) >>       release_firmware(fw); >>   done: >>       ifsd->loaded = (ret == 0); >> + >> +    return ret; >>   } This change is still needed by the new code, more below >> diff --git a/drivers/platform/x86/intel/ifs/sysfs.c b/drivers/platform/x86/intel/ifs/sysfs.c >> index 37d8380d6fa8..4af4e1bea98d 100644 >> --- a/drivers/platform/x86/intel/ifs/sysfs.c >> +++ b/drivers/platform/x86/intel/ifs/sysfs.c >> @@ -94,9 +94,8 @@ static ssize_t reload_store(struct device *dev, >>                   struct device_attribute *attr, >>                   const char *buf, size_t count) >>   { >> -    struct ifs_data *ifsd = ifs_get_data(dev); >>       bool res; >> - >> +    int rc; >>   > > Does rc refer to return code? The other IFS functions like above use the commonly used 'ret' variable. Any specific reason for the inconsistency? > > Also, patch 11 completely removes the reload_store() function. Should we avoid a separate patch to fix something that is going to be removed soon? Would re-ordering the patches help in that regard? You are right that reload is removed subsequently, only the ifs_load_firmware() part above is needed for the new code . Will move the above to a new patch between current patches 11 and 12 (and drop this patch) Jithu