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Message-ID: <202104070654.MoBqdv9k-lkp@intel.com>
Date: Wed, 7 Apr 2021 06:48:40 +0800
From: kernel test robot <lkp@...el.com>
To: Yicong Yang <yangyicong@...ilicon.com>,
alexander.shishkin@...ux.intel.com, helgaas@...nel.org,
linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Cc: kbuild-all@...ts.01.org, lorenzo.pieralisi@....com,
gregkh@...uxfoundation.org, jonathan.cameron@...wei.com,
song.bao.hua@...ilicon.com, prime.zeng@...wei.com,
yangyicong@...ilicon.com
Subject: Re: [PATCH 1/4] hwtracing: Add trace function support for HiSilicon
PCIe Tune and Trace device
Hi Yicong,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.12-rc6 next-20210406]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Yicong-Yang/Add-support-for-HiSilicon-PCIe-Tune-and-Trace-device/20210406-204959
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 0a50438c84363bd37fe18fe432888ae9a074dcab
config: nios2-allyesconfig (attached as .config)
compiler: nios2-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/8d755179573b25c8c165509321a32c3c04b10ab5
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Yicong-Yang/Add-support-for-HiSilicon-PCIe-Tune-and-Trace-device/20210406-204959
git checkout 8d755179573b25c8c165509321a32c3c04b10ab5
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
drivers/hwtracing/hisilicon/hisi_ptt.c: In function 'hisi_ptt_irq_register':
>> drivers/hwtracing/hisilicon/hisi_ptt.c:1067:3: error: implicit declaration of function 'pci_free_irq_vectors'; did you mean 'pci_alloc_irq_vectors'? [-Werror=implicit-function-declaration]
1067 | pci_free_irq_vectors(pdev);
| ^~~~~~~~~~~~~~~~~~~~
| pci_alloc_irq_vectors
drivers/hwtracing/hisilicon/hisi_ptt.c: In function 'hisi_ptt_init_ctrls':
>> drivers/hwtracing/hisilicon/hisi_ptt.c:1231:8: error: implicit declaration of function 'pci_find_bus'; did you mean 'pci_find_next_bus'? [-Werror=implicit-function-declaration]
1231 | bus = pci_find_bus(pci_domain_nr(hisi_ptt->pdev->bus),
| ^~~~~~~~~~~~
| pci_find_next_bus
drivers/hwtracing/hisilicon/hisi_ptt.c:1231:6: warning: assignment to 'struct pci_bus *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
1231 | bus = pci_find_bus(pci_domain_nr(hisi_ptt->pdev->bus),
| ^
>> drivers/hwtracing/hisilicon/hisi_ptt.c:1234:3: error: implicit declaration of function 'pci_walk_bus' [-Werror=implicit-function-declaration]
1234 | pci_walk_bus(bus, hisi_ptt_init_filters, hisi_ptt);
| ^~~~~~~~~~~~
drivers/hwtracing/hisilicon/hisi_ptt.c: In function 'hisi_ptt_probe':
>> drivers/hwtracing/hisilicon/hisi_ptt.c:1359:31: error: 'pci_bus_type' undeclared (first use in this function); did you mean 'pci_pcie_type'?
1359 | ret = bus_register_notifier(&pci_bus_type, &hisi_ptt->hisi_ptt_nb);
| ^~~~~~~~~~~~
| pci_pcie_type
drivers/hwtracing/hisilicon/hisi_ptt.c:1359:31: note: each undeclared identifier is reported only once for each function it appears in
drivers/hwtracing/hisilicon/hisi_ptt.c: At top level:
drivers/hwtracing/hisilicon/hisi_ptt.c:1366:6: warning: no previous prototype for 'hisi_ptt_remove' [-Wmissing-prototypes]
1366 | void hisi_ptt_remove(struct pci_dev *pdev)
| ^~~~~~~~~~~~~~~
drivers/hwtracing/hisilicon/hisi_ptt.c: In function 'hisi_ptt_remove':
drivers/hwtracing/hisilicon/hisi_ptt.c:1370:27: error: 'pci_bus_type' undeclared (first use in this function); did you mean 'pci_pcie_type'?
1370 | bus_unregister_notifier(&pci_bus_type, &hisi_ptt->hisi_ptt_nb);
| ^~~~~~~~~~~~
| pci_pcie_type
cc1: some warnings being treated as errors
vim +1067 drivers/hwtracing/hisilicon/hisi_ptt.c
1048
1049 static int hisi_ptt_irq_register(struct hisi_ptt *hisi_ptt)
1050 {
1051 struct pci_dev *pdev = hisi_ptt->pdev;
1052 int ret;
1053
1054 ret = pci_alloc_irq_vectors(pdev, HISI_PTT_IRQ_NUMS, HISI_PTT_IRQ_NUMS,
1055 PCI_IRQ_MSI);
1056 if (ret < 0) {
1057 pci_err(pdev, "failed to allocate irq vector, ret = %d\n", ret);
1058 return ret;
1059 }
1060
1061 ret = request_threaded_irq(pci_irq_vector(pdev, HISI_PTT_DMA_IRQ),
1062 hisi_ptt_irq, hisi_ptt_isr, IRQF_SHARED,
1063 "hisi-ptt", hisi_ptt);
1064 if (ret) {
1065 pci_err(pdev, "failed to request irq %d, ret = %d\n",
1066 pci_irq_vector(pdev, HISI_PTT_DMA_IRQ), ret);
> 1067 pci_free_irq_vectors(pdev);
1068 return ret;
1069 }
1070
1071 return 0;
1072 }
1073
1074 static void hisi_ptt_irq_unregister(struct hisi_ptt *hisi_ptt)
1075 {
1076 struct pci_dev *pdev = hisi_ptt->pdev;
1077
1078 free_irq(pci_irq_vector(pdev, HISI_PTT_DMA_IRQ), hisi_ptt);
1079 pci_free_irq_vectors(pdev);
1080 }
1081
1082 static void hisi_ptt_update_filters(struct work_struct *work)
1083 {
1084 struct delayed_work *delayed_work = to_delayed_work(work);
1085 struct hisi_ptt_filter_update_info info;
1086 struct hisi_ptt_filter_desc *filter;
1087 struct list_head *target_list;
1088 struct hisi_ptt *hisi_ptt;
1089
1090 hisi_ptt = container_of(delayed_work, struct hisi_ptt, work);
1091
1092 if (!mutex_trylock(&hisi_ptt->mutex)) {
1093 schedule_delayed_work(&hisi_ptt->work, HISI_PTT_WORK_DELAY_MS);
1094 return;
1095 }
1096
1097 while (kfifo_get(&hisi_ptt->filter_update_kfifo, &info)) {
1098 target_list = info.is_port ? &hisi_ptt->port_filters :
1099 &hisi_ptt->req_filters;
1100
1101 if (info.is_add) {
1102 filter = kzalloc(sizeof(*filter), GFP_KERNEL);
1103 if (!filter) {
1104 pci_err(hisi_ptt->pdev,
1105 "failed to update the filters\n");
1106 continue;
1107 }
1108
1109 filter->pdev = info.pdev;
1110 filter->val = info.val;
1111
1112 list_add_tail(&filter->list, target_list);
1113 } else {
1114 list_for_each_entry(filter, target_list, list)
1115 if (filter->val == info.val) {
1116 list_del(&filter->list);
1117 kfree(filter);
1118 break;
1119 }
1120 }
1121 }
1122
1123 mutex_unlock(&hisi_ptt->mutex);
1124 }
1125
1126 static void hisi_ptt_update_fifo_in(struct hisi_ptt *hisi_ptt,
1127 struct hisi_ptt_filter_update_info *info)
1128 {
1129 struct pci_dev *root_port = pcie_find_root_port(info->pdev);
1130
1131 if (!root_port)
1132 return;
1133
1134 info->port_devid = PCI_DEVID(root_port->bus->number, root_port->devfn);
1135 if (info->port_devid < hisi_ptt->lower ||
1136 info->port_devid > hisi_ptt->upper)
1137 return;
1138
1139 info->is_port = pci_pcie_type(info->pdev) == PCI_EXP_TYPE_ROOT_PORT;
1140 info->val = hisi_ptt_get_filter_val(info->pdev);
1141
1142 if (kfifo_in_spinlocked(&hisi_ptt->filter_update_kfifo, info, 1,
1143 &hisi_ptt->filter_update_lock))
1144 schedule_delayed_work(&hisi_ptt->work, 0);
1145 else
1146 pci_warn(hisi_ptt->pdev,
1147 "filter update fifo overflow for target %s\n",
1148 pci_name(info->pdev));
1149 }
1150
1151 /*
1152 * A PCI bus notifier is used here for dynamically updating the filter
1153 * list.
1154 */
1155 static int hisi_ptt_notifier_call(struct notifier_block *nb,
1156 unsigned long action,
1157 void *data)
1158 {
1159 struct hisi_ptt *hisi_ptt = container_of(nb, struct hisi_ptt, hisi_ptt_nb);
1160 struct hisi_ptt_filter_update_info info;
1161 struct device *dev = data;
1162 struct pci_dev *pdev = to_pci_dev(dev);
1163
1164 info.pdev = pdev;
1165
1166 switch (action) {
1167 case BUS_NOTIFY_ADD_DEVICE:
1168 info.is_add = true;
1169 break;
1170 case BUS_NOTIFY_DEL_DEVICE:
1171 info.is_add = false;
1172 break;
1173 default:
1174 return 0;
1175 }
1176
1177 hisi_ptt_update_fifo_in(hisi_ptt, &info);
1178
1179 return 0;
1180 }
1181
1182 static int hisi_ptt_init_filters(struct pci_dev *pdev, void *data)
1183 {
1184 struct hisi_ptt_filter_update_info info = {
1185 .pdev = pdev,
1186 .is_add = true,
1187 };
1188 struct hisi_ptt *hisi_ptt = data;
1189
1190 hisi_ptt_update_fifo_in(hisi_ptt, &info);
1191
1192 return 0;
1193 }
1194
1195 static void hisi_ptt_release_filters(struct hisi_ptt *hisi_ptt)
1196 {
1197 struct hisi_ptt_filter_desc *filter, *tfilter;
1198
1199 list_for_each_entry_safe(filter, tfilter, &hisi_ptt->req_filters, list) {
1200 list_del(&filter->list);
1201 kfree(filter);
1202 }
1203
1204 list_for_each_entry_safe(filter, tfilter, &hisi_ptt->port_filters, list) {
1205 list_del(&filter->list);
1206 kfree(filter);
1207 }
1208 }
1209
1210 static void hisi_ptt_init_ctrls(struct hisi_ptt *hisi_ptt)
1211 {
1212 struct pci_bus *bus;
1213 u32 reg;
1214
1215 INIT_LIST_HEAD(&hisi_ptt->port_filters);
1216 INIT_LIST_HEAD(&hisi_ptt->req_filters);
1217
1218 /*
1219 * The device range register provides the information about the
1220 * root ports which the RCiEP can control and trace. The RCiEP
1221 * and the root ports it support are on the same PCIe core, with
1222 * same domain number but maybe different bus number. The device
1223 * range register will tell us which root ports we can support,
1224 * Bit[31:16] indicates the upper BDF numbers of the root port,
1225 * while Bit[15:0] indicates the lower.
1226 */
1227 reg = readl(hisi_ptt->iobase + HISI_PTT_DEVICE_RANGE);
1228 hisi_ptt->upper = reg >> 16;
1229 hisi_ptt->lower = reg & 0xffff;
1230
> 1231 bus = pci_find_bus(pci_domain_nr(hisi_ptt->pdev->bus),
1232 PCI_BUS_NUM(hisi_ptt->upper));
1233 if (bus)
> 1234 pci_walk_bus(bus, hisi_ptt_init_filters, hisi_ptt);
1235
1236 /* Initialize trace controls */
1237 INIT_LIST_HEAD(&hisi_ptt->trace_ctrl.trace_buf);
1238 hisi_ptt->trace_ctrl.buflet_nums = HISI_PTT_DEFAULT_TRACE_BUF_CNT;
1239 hisi_ptt->trace_ctrl.buflet_size = HISI_PTT_TRACE_DEFAULT_BUFLET_SIZE;
1240 hisi_ptt->trace_ctrl.rxtx = HISI_PTT_TRACE_DEFAULT_RXTX.event_code;
1241 hisi_ptt->trace_ctrl.tr_event = HISI_PTT_TRACE_DEFAULT_EVENT.event_code;
1242 }
1243
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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