* [linux-next:master 9304/13906] drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1239 dma_chan_pause() warn: inconsistent indenting
@ 2023-10-23 9:56 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-10-23 9:56 UTC (permalink / raw)
To: Sergey Khimich; +Cc: oe-kbuild-all, Linux Memory Management List, Vinod Koul
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 2030579113a1b1b5bfd7ff24c0852847836d8fd1
commit: 495e18b16e3dd8218eaec6a8a55334fb55245d59 [9304/13906] dmaengine: dw-axi-dmac: Add support DMAX_NUM_CHANNELS > 16
config: x86_64-randconfig-161-20231022 (https://download.01.org/0day-ci/archive/20231023/202310231733.tM3xW1hV-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce: (https://download.01.org/0day-ci/archive/20231023/202310231733.tM3xW1hV-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310231733.tM3xW1hV-lkp@intel.com/
New smatch warnings:
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1239 dma_chan_pause() warn: inconsistent indenting
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1286 axi_chan_resume() warn: inconsistent indenting
Old smatch warnings:
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c:1345 axi_dma_resume() warn: 'chip->cfgr_clk' from clk_prepare_enable() not released on lines: 1340.
vim +1239 drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
1218
1219 static int dma_chan_pause(struct dma_chan *dchan)
1220 {
1221 struct axi_dma_chan *chan = dchan_to_axi_dma_chan(dchan);
1222 unsigned long flags;
1223 unsigned int timeout = 20; /* timeout iterations */
1224 u64 val;
1225
1226 spin_lock_irqsave(&chan->vc.lock, flags);
1227
1228 if (chan->chip->dw->hdata->nr_channels >= DMAC_CHAN_16) {
1229 val = axi_dma_ioread64(chan->chip, DMAC_CHSUSPREG);
1230 if (chan->id >= DMAC_CHAN_16) {
1231 val |= (u64)(BIT(chan->id) >> DMAC_CHAN_16)
1232 << (DMAC_CHAN_SUSP2_SHIFT + DMAC_CHAN_BLOCK_SHIFT) |
1233 (u64)(BIT(chan->id) >> DMAC_CHAN_16)
1234 << (DMAC_CHAN_SUSP2_WE_SHIFT + DMAC_CHAN_BLOCK_SHIFT);
1235 } else {
1236 val |= BIT(chan->id) << DMAC_CHAN_SUSP2_SHIFT |
1237 BIT(chan->id) << DMAC_CHAN_SUSP2_WE_SHIFT;
1238 }
> 1239 axi_dma_iowrite64(chan->chip, DMAC_CHSUSPREG, val);
1240 } else {
1241 if (chan->chip->dw->hdata->reg_map_8_channels) {
1242 val = axi_dma_ioread32(chan->chip, DMAC_CHEN);
1243 val |= BIT(chan->id) << DMAC_CHAN_SUSP_SHIFT |
1244 BIT(chan->id) << DMAC_CHAN_SUSP_WE_SHIFT;
1245 axi_dma_iowrite32(chan->chip, DMAC_CHEN, (u32)val);
1246 } else {
1247 val = axi_dma_ioread32(chan->chip, DMAC_CHSUSPREG);
1248 val |= BIT(chan->id) << DMAC_CHAN_SUSP2_SHIFT |
1249 BIT(chan->id) << DMAC_CHAN_SUSP2_WE_SHIFT;
1250 axi_dma_iowrite32(chan->chip, DMAC_CHSUSPREG, (u32)val);
1251 }
1252 }
1253
1254 do {
1255 if (axi_chan_irq_read(chan) & DWAXIDMAC_IRQ_SUSPENDED)
1256 break;
1257
1258 udelay(2);
1259 } while (--timeout);
1260
1261 axi_chan_irq_clear(chan, DWAXIDMAC_IRQ_SUSPENDED);
1262
1263 chan->is_paused = true;
1264
1265 spin_unlock_irqrestore(&chan->vc.lock, flags);
1266
1267 return timeout ? 0 : -EAGAIN;
1268 }
1269
1270 /* Called in chan locked context */
1271 static inline void axi_chan_resume(struct axi_dma_chan *chan)
1272 {
1273 u64 val;
1274
1275 if (chan->chip->dw->hdata->nr_channels >= DMAC_CHAN_16) {
1276 val = axi_dma_ioread64(chan->chip, DMAC_CHSUSPREG);
1277 if (chan->id >= DMAC_CHAN_16) {
1278 val &= ~((u64)(BIT(chan->id) >> DMAC_CHAN_16)
1279 << (DMAC_CHAN_SUSP2_SHIFT + DMAC_CHAN_BLOCK_SHIFT));
1280 val |= ((u64)(BIT(chan->id) >> DMAC_CHAN_16)
1281 << (DMAC_CHAN_SUSP2_WE_SHIFT + DMAC_CHAN_BLOCK_SHIFT));
1282 } else {
1283 val &= ~(BIT(chan->id) << DMAC_CHAN_SUSP2_SHIFT);
1284 val |= (BIT(chan->id) << DMAC_CHAN_SUSP2_WE_SHIFT);
1285 }
> 1286 axi_dma_iowrite64(chan->chip, DMAC_CHSUSPREG, val);
1287 } else {
1288 if (chan->chip->dw->hdata->reg_map_8_channels) {
1289 val = axi_dma_ioread32(chan->chip, DMAC_CHEN);
1290 val &= ~(BIT(chan->id) << DMAC_CHAN_SUSP_SHIFT);
1291 val |= (BIT(chan->id) << DMAC_CHAN_SUSP_WE_SHIFT);
1292 axi_dma_iowrite32(chan->chip, DMAC_CHEN, (u32)val);
1293 } else {
1294 val = axi_dma_ioread32(chan->chip, DMAC_CHSUSPREG);
1295 val &= ~(BIT(chan->id) << DMAC_CHAN_SUSP2_SHIFT);
1296 val |= (BIT(chan->id) << DMAC_CHAN_SUSP2_WE_SHIFT);
1297 axi_dma_iowrite32(chan->chip, DMAC_CHSUSPREG, (u32)val);
1298 }
1299 }
1300
1301 chan->is_paused = false;
1302 }
1303
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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