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SubjectRe: [PATCH] dec: tulip: de4x5: Replace mdelay with usleep_range in de4x5_hw_init
Hi Jia-Ju,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/master]
[also build test ERROR on v4.16 next-20180411]
[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/Jia-Ju-Bai/dec-tulip-de4x5-Replace-mdelay-with-usleep_range-in-de4x5_hw_init/20180411-222527
config: i386-randconfig-x015-201814 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

drivers/net//ethernet/dec/tulip/de4x5.c: In function 'de4x5_hw_init':
>> drivers/net//ethernet/dec/tulip/de4x5.c:1110:5: error: implicit declaration of function 'usleep'; did you mean 'ssleep'? [-Werror=implicit-function-declaration]
usleep(10000, 11000);
^~~~~~
ssleep
cc1: some warnings being treated as errors

vim +1110 drivers/net//ethernet/dec/tulip/de4x5.c

1091
1092
1093 static int
1094 de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev)
1095 {
1096 char name[DE4X5_NAME_LENGTH + 1];
1097 struct de4x5_private *lp = netdev_priv(dev);
1098 struct pci_dev *pdev = NULL;
1099 int i, status=0;
1100
1101 dev_set_drvdata(gendev, dev);
1102
1103 /* Ensure we're not sleeping */
1104 if (lp->bus == EISA) {
1105 outb(WAKEUP, PCI_CFPM);
1106 } else {
1107 pdev = to_pci_dev (gendev);
1108 pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP);
1109 }
> 1110 usleep(10000, 11000);
1111
1112 RESET_DE4X5;
1113
1114 if ((inl(DE4X5_STS) & (STS_TS | STS_RS)) != 0) {
1115 return -ENXIO; /* Hardware could not reset */
1116 }
1117
1118 /*
1119 ** Now find out what kind of DC21040/DC21041/DC21140 board we have.
1120 */
1121 lp->useSROM = false;
1122 if (lp->bus == PCI) {
1123 PCI_signature(name, lp);
1124 } else {
1125 EISA_signature(name, gendev);
1126 }
1127
1128 if (*name == '\0') { /* Not found a board signature */
1129 return -ENXIO;
1130 }
1131
1132 dev->base_addr = iobase;
1133 printk ("%s: %s at 0x%04lx", dev_name(gendev), name, iobase);
1134
1135 status = get_hw_addr(dev);
1136 printk(", h/w address %pM\n", dev->dev_addr);
1137
1138 if (status != 0) {
1139 printk(" which has an Ethernet PROM CRC error.\n");
1140 return -ENXIO;
1141 } else {
1142 skb_queue_head_init(&lp->cache.queue);
1143 lp->cache.gepc = GEP_INIT;
1144 lp->asBit = GEP_SLNK;
1145 lp->asPolarity = GEP_SLNK;
1146 lp->asBitValid = ~0;
1147 lp->timeout = -1;
1148 lp->gendev = gendev;
1149 spin_lock_init(&lp->lock);
1150 timer_setup(&lp->timer, de4x5_ast, 0);
1151 de4x5_parse_params(dev);
1152
1153 /*
1154 ** Choose correct autosensing in case someone messed up
1155 */
1156 lp->autosense = lp->params.autosense;
1157 if (lp->chipset != DC21140) {
1158 if ((lp->chipset==DC21040) && (lp->params.autosense&TP_NW)) {
1159 lp->params.autosense = TP;
1160 }
1161 if ((lp->chipset==DC21041) && (lp->params.autosense&BNC_AUI)) {
1162 lp->params.autosense = BNC;
1163 }
1164 }
1165 lp->fdx = lp->params.fdx;
1166 sprintf(lp->adapter_name,"%s (%s)", name, dev_name(gendev));
1167
1168 lp->dma_size = (NUM_RX_DESC + NUM_TX_DESC) * sizeof(struct de4x5_desc);
1169 #if defined(__alpha__) || defined(__powerpc__) || defined(CONFIG_SPARC) || defined(DE4X5_DO_MEMCPY)
1170 lp->dma_size += RX_BUFF_SZ * NUM_RX_DESC + DE4X5_ALIGN;
1171 #endif
1172 lp->rx_ring = dma_alloc_coherent(gendev, lp->dma_size,
1173 &lp->dma_rings, GFP_ATOMIC);
1174 if (lp->rx_ring == NULL) {
1175 return -ENOMEM;
1176 }
1177
1178 lp->tx_ring = lp->rx_ring + NUM_RX_DESC;
1179
1180 /*
1181 ** Set up the RX descriptor ring (Intels)
1182 ** Allocate contiguous receive buffers, long word aligned (Alphas)
1183 */
1184 #if !defined(__alpha__) && !defined(__powerpc__) && !defined(CONFIG_SPARC) && !defined(DE4X5_DO_MEMCPY)
1185 for (i=0; i<NUM_RX_DESC; i++) {
1186 lp->rx_ring[i].status = 0;
1187 lp->rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ);
1188 lp->rx_ring[i].buf = 0;
1189 lp->rx_ring[i].next = 0;
1190 lp->rx_skb[i] = (struct sk_buff *) 1; /* Dummy entry */
1191 }
1192

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