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Message-ID: <201806150139.qLMo3O9v%fengguang.wu@intel.com>
Date: Fri, 15 Jun 2018 01:53:42 +0800
From: kbuild test robot <lkp@...el.com>
To: Sayali Lokhande <sayalil@...eaurora.org>
Cc: kbuild-all@...org, subhashj@...eaurora.org, cang@...eaurora.org,
vivek.gautam@...eaurora.org, rnayak@...eaurora.org,
vinholikatti@...il.com, jejb@...ux.vnet.ibm.com,
martin.petersen@...cle.com, asutoshd@...eaurora.org,
evgreen@...omium.org, riteshh@...eaurora.org,
linux-scsi@...r.kernel.org,
Sayali Lokhande <sayalil@...eaurora.org>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V3 3/3] scsi: ufs: Add configfs support for ufs
provisioning
Hi Sayali,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on mkp-scsi/for-next]
[also build test ERROR on v4.17 next-20180614]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Sayali-Lokhande/Add-ufs-provisioning-support-in-driver/20180614-211513
base: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
config: x86_64-randconfig-s5-06142227 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/scsi/ufs/ufshcd.o: In function `ufshcd_init':
>> drivers/scsi/ufs/ufshcd.c:8311: undefined reference to `ufshcd_configfs_init'
drivers/scsi/ufs/ufshcd.o: In function `ufshcd_remove':
>> drivers/scsi/ufs/ufshcd.c:8057: undefined reference to `ufshcd_configfs_exit'
vim +8311 drivers/scsi/ufs/ufshcd.c
8133
8134 /**
8135 * ufshcd_init - Driver initialization routine
8136 * @hba: per-adapter instance
8137 * @mmio_base: base register address
8138 * @irq: Interrupt line of device
8139 * Returns 0 on success, non-zero value on failure
8140 */
8141 int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
8142 {
8143 int err;
8144 struct Scsi_Host *host = hba->host;
8145 struct device *dev = hba->dev;
8146
8147 if (!mmio_base) {
8148 dev_err(hba->dev,
8149 "Invalid memory reference for mmio_base is NULL\n");
8150 err = -ENODEV;
8151 goto out_error;
8152 }
8153
8154 hba->mmio_base = mmio_base;
8155 hba->irq = irq;
8156
8157 /* Set descriptor lengths to specification defaults */
8158 ufshcd_def_desc_sizes(hba);
8159
8160 err = ufshcd_hba_init(hba);
8161 if (err)
8162 goto out_error;
8163
8164 /* Read capabilities registers */
8165 ufshcd_hba_capabilities(hba);
8166
8167 /* Get UFS version supported by the controller */
8168 hba->ufs_version = ufshcd_get_ufs_version(hba);
8169
8170 if ((hba->ufs_version != UFSHCI_VERSION_10) &&
8171 (hba->ufs_version != UFSHCI_VERSION_11) &&
8172 (hba->ufs_version != UFSHCI_VERSION_20) &&
8173 (hba->ufs_version != UFSHCI_VERSION_21))
8174 dev_err(hba->dev, "invalid UFS version 0x%x\n",
8175 hba->ufs_version);
8176
8177 /* Get Interrupt bit mask per version */
8178 hba->intr_mask = ufshcd_get_intr_mask(hba);
8179
8180 err = ufshcd_set_dma_mask(hba);
8181 if (err) {
8182 dev_err(hba->dev, "set dma mask failed\n");
8183 goto out_disable;
8184 }
8185
8186 /* Allocate memory for host memory space */
8187 err = ufshcd_memory_alloc(hba);
8188 if (err) {
8189 dev_err(hba->dev, "Memory allocation failed\n");
8190 goto out_disable;
8191 }
8192
8193 /* Configure LRB */
8194 ufshcd_host_memory_configure(hba);
8195
8196 host->can_queue = hba->nutrs;
8197 host->cmd_per_lun = hba->nutrs;
8198 host->max_id = UFSHCD_MAX_ID;
8199 host->max_lun = UFS_MAX_LUNS;
8200 host->max_channel = UFSHCD_MAX_CHANNEL;
8201 host->unique_id = host->host_no;
8202 host->max_cmd_len = MAX_CDB_SIZE;
8203
8204 hba->max_pwr_info.is_valid = false;
8205
8206 /* Initailize wait queue for task management */
8207 init_waitqueue_head(&hba->tm_wq);
8208 init_waitqueue_head(&hba->tm_tag_wq);
8209
8210 /* Initialize work queues */
8211 INIT_WORK(&hba->eh_work, ufshcd_err_handler);
8212 INIT_WORK(&hba->eeh_work, ufshcd_exception_event_handler);
8213
8214 /* Initialize UIC command mutex */
8215 mutex_init(&hba->uic_cmd_mutex);
8216
8217 /* Initialize mutex for device management commands */
8218 mutex_init(&hba->dev_cmd.lock);
8219
8220 init_rwsem(&hba->clk_scaling_lock);
8221
8222 /* Initialize device management tag acquire wait queue */
8223 init_waitqueue_head(&hba->dev_cmd.tag_wq);
8224
8225 ufshcd_init_clk_gating(hba);
8226
8227 /*
8228 * In order to avoid any spurious interrupt immediately after
8229 * registering UFS controller interrupt handler, clear any pending UFS
8230 * interrupt status and disable all the UFS interrupts.
8231 */
8232 ufshcd_writel(hba, ufshcd_readl(hba, REG_INTERRUPT_STATUS),
8233 REG_INTERRUPT_STATUS);
8234 ufshcd_writel(hba, 0, REG_INTERRUPT_ENABLE);
8235 /*
8236 * Make sure that UFS interrupts are disabled and any pending interrupt
8237 * status is cleared before registering UFS interrupt handler.
8238 */
8239 mb();
8240
8241 /* IRQ registration */
8242 err = devm_request_irq(dev, irq, ufshcd_intr, IRQF_SHARED, UFSHCD, hba);
8243 if (err) {
8244 dev_err(hba->dev, "request irq failed\n");
8245 goto exit_gating;
8246 } else {
8247 hba->is_irq_enabled = true;
8248 }
8249
8250 err = scsi_add_host(host, hba->dev);
8251 if (err) {
8252 dev_err(hba->dev, "scsi_add_host failed\n");
8253 goto exit_gating;
8254 }
8255
8256 /* Host controller enable */
8257 err = ufshcd_hba_enable(hba);
8258 if (err) {
8259 dev_err(hba->dev, "Host controller enable failed\n");
8260 ufshcd_print_host_regs(hba);
8261 ufshcd_print_host_state(hba);
8262 goto out_remove_scsi_host;
8263 }
8264
8265 if (ufshcd_is_clkscaling_supported(hba)) {
8266 char wq_name[sizeof("ufs_clkscaling_00")];
8267
8268 INIT_WORK(&hba->clk_scaling.suspend_work,
8269 ufshcd_clk_scaling_suspend_work);
8270 INIT_WORK(&hba->clk_scaling.resume_work,
8271 ufshcd_clk_scaling_resume_work);
8272
8273 snprintf(wq_name, sizeof(wq_name), "ufs_clkscaling_%d",
8274 host->host_no);
8275 hba->clk_scaling.workq = create_singlethread_workqueue(wq_name);
8276
8277 ufshcd_clkscaling_init_sysfs(hba);
8278 }
8279
8280 /*
8281 * Set the default power management level for runtime and system PM.
8282 * Default power saving mode is to keep UFS link in Hibern8 state
8283 * and UFS device in sleep state.
8284 */
8285 hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(
8286 UFS_SLEEP_PWR_MODE,
8287 UIC_LINK_HIBERN8_STATE);
8288 hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(
8289 UFS_SLEEP_PWR_MODE,
8290 UIC_LINK_HIBERN8_STATE);
8291
8292 /* Set the default auto-hiberate idle timer value to 150 ms */
8293 if (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT) {
8294 hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) |
8295 FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3);
8296 }
8297
8298 /* Hold auto suspend until async scan completes */
8299 pm_runtime_get_sync(dev);
8300 atomic_set(&hba->scsi_block_reqs_cnt, 0);
8301 /*
8302 * We are assuming that device wasn't put in sleep/power-down
8303 * state exclusively during the boot stage before kernel.
8304 * This assumption helps avoid doing link startup twice during
8305 * ufshcd_probe_hba().
8306 */
8307 ufshcd_set_ufs_dev_active(hba);
8308
8309 async_schedule(ufshcd_async_scan, hba);
8310 ufs_sysfs_add_nodes(hba->dev);
> 8311 ufshcd_configfs_init(hba);
8312
8313 return 0;
8314
8315 out_remove_scsi_host:
8316 scsi_remove_host(hba->host);
8317 exit_gating:
8318 ufshcd_exit_clk_gating(hba);
8319 out_disable:
8320 hba->is_irq_enabled = false;
8321 ufshcd_hba_exit(hba);
8322 out_error:
8323 return err;
8324 }
8325 EXPORT_SYMBOL_GPL(ufshcd_init);
8326
---
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