Hi Peter, [auto build test ERROR on slave-dma/next] [also build test ERROR on v4.5-rc3 next-20160211] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Peter-Ujfalusi/dmaengine-omap-dma-Implement-device_synchronize-callback/20160211-165914 base: https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/slave-dma.git next config: arm-multi_v7_defconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All errors (new ones prefixed by >>): drivers/dma/omap-dma.c: In function 'omap_dma_synchronize': >> drivers/dma/omap-dma.c:1014:20: error: 'c' redeclared as different kind of symbol struct omap_chan *c = to_omap_dma_chan(chan); ^ drivers/dma/omap-dma.c:1012:51: note: previous definition of 'c' was here static void omap_dma_synchronize(struct dma_chan *c) ^ >> drivers/dma/omap-dma.c:1014:41: error: 'chan' undeclared (first use in this function) struct omap_chan *c = to_omap_dma_chan(chan); ^ drivers/dma/omap-dma.c:1014:41: note: each undeclared identifier is reported only once for each function it appears in drivers/dma/omap-dma.c: In function 'omap_dma_probe': >> drivers/dma/omap-dma.c:1122:5: error: 'ddev' undeclared (first use in this function) od-ddev.device_synchronize = omap_dma_synchronize; ^ vim +/c +1014 drivers/dma/omap-dma.c 1006 spin_unlock_irqrestore(&c->vc.lock, flags); 1007 vchan_dma_desc_free_list(&c->vc, &head); 1008 1009 return 0; 1010 } 1011 > 1012 static void omap_dma_synchronize(struct dma_chan *c) 1013 { > 1014 struct omap_chan *c = to_omap_dma_chan(chan); 1015 1016 vchan_synchronize(&c->vc); 1017 } 1018 1019 static int omap_dma_pause(struct dma_chan *chan) 1020 { 1021 struct omap_chan *c = to_omap_dma_chan(chan); 1022 1023 /* Pause/Resume only allowed with cyclic mode */ 1024 if (!c->cyclic) 1025 return -EINVAL; 1026 1027 if (!c->paused) { 1028 omap_dma_stop(c); 1029 c->paused = true; 1030 } 1031 1032 return 0; 1033 } 1034 1035 static int omap_dma_resume(struct dma_chan *chan) 1036 { 1037 struct omap_chan *c = to_omap_dma_chan(chan); 1038 1039 /* Pause/Resume only allowed with cyclic mode */ 1040 if (!c->cyclic) 1041 return -EINVAL; 1042 1043 if (c->paused) { 1044 mb(); 1045 1046 /* Restore channel link register */ 1047 omap_dma_chan_write(c, CLNK_CTRL, c->desc->clnk_ctrl); 1048 1049 omap_dma_start(c, c->desc); 1050 c->paused = false; 1051 } 1052 1053 return 0; 1054 } 1055 1056 static int omap_dma_chan_init(struct omap_dmadev *od) 1057 { 1058 struct omap_chan *c; 1059 1060 c = kzalloc(sizeof(*c), GFP_KERNEL); 1061 if (!c) 1062 return -ENOMEM; 1063 1064 c->reg_map = od->reg_map; 1065 c->vc.desc_free = omap_dma_desc_free; 1066 vchan_init(&c->vc, &od->ddev); 1067 1068 return 0; 1069 } 1070 1071 static void omap_dma_free(struct omap_dmadev *od) 1072 { 1073 while (!list_empty(&od->ddev.channels)) { 1074 struct omap_chan *c = list_first_entry(&od->ddev.channels, 1075 struct omap_chan, vc.chan.device_node); 1076 1077 list_del(&c->vc.chan.device_node); 1078 tasklet_kill(&c->vc.task); 1079 kfree(c); 1080 } 1081 } 1082 1083 #define OMAP_DMA_BUSWIDTHS (BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \ 1084 BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \ 1085 BIT(DMA_SLAVE_BUSWIDTH_4_BYTES)) 1086 1087 static int omap_dma_probe(struct platform_device *pdev) 1088 { 1089 struct omap_dmadev *od; 1090 struct resource *res; 1091 int rc, i, irq; 1092 1093 od = devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL); 1094 if (!od) 1095 return -ENOMEM; 1096 1097 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1098 od->base = devm_ioremap_resource(&pdev->dev, res); 1099 if (IS_ERR(od->base)) 1100 return PTR_ERR(od->base); 1101 1102 od->plat = omap_get_plat_info(); 1103 if (!od->plat) 1104 return -EPROBE_DEFER; 1105 1106 od->reg_map = od->plat->reg_map; 1107 1108 dma_cap_set(DMA_SLAVE, od->ddev.cap_mask); 1109 dma_cap_set(DMA_CYCLIC, od->ddev.cap_mask); 1110 dma_cap_set(DMA_MEMCPY, od->ddev.cap_mask); 1111 od->ddev.device_alloc_chan_resources = omap_dma_alloc_chan_resources; 1112 od->ddev.device_free_chan_resources = omap_dma_free_chan_resources; 1113 od->ddev.device_tx_status = omap_dma_tx_status; 1114 od->ddev.device_issue_pending = omap_dma_issue_pending; 1115 od->ddev.device_prep_slave_sg = omap_dma_prep_slave_sg; 1116 od->ddev.device_prep_dma_cyclic = omap_dma_prep_dma_cyclic; 1117 od->ddev.device_prep_dma_memcpy = omap_dma_prep_dma_memcpy; 1118 od->ddev.device_config = omap_dma_slave_config; 1119 od->ddev.device_pause = omap_dma_pause; 1120 od->ddev.device_resume = omap_dma_resume; 1121 od->ddev.device_terminate_all = omap_dma_terminate_all; > 1122 od-ddev.device_synchronize = omap_dma_synchronize; 1123 od->ddev.src_addr_widths = OMAP_DMA_BUSWIDTHS; 1124 od->ddev.dst_addr_widths = OMAP_DMA_BUSWIDTHS; 1125 od->ddev.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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