tree: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-4.17 head: f960eae0fcd0bf7c01e8d5a2637959778b1828b4 commit: f960eae0fcd0bf7c01e8d5a2637959778b1828b4 [3/3] spi: cadence: Add usleep_range() for cdns_spi_fill_tx_fifo() config: i386-randconfig-s1-201815 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: git checkout f960eae0fcd0bf7c01e8d5a2637959778b1828b4 # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): drivers//spi/spi-cadence.c: In function 'cdns_spi_fill_tx_fifo': drivers//spi/spi-cadence.c:320:27: error: 'CDNS_SPI_ISR_OFFSET' undeclared (first use in this function) if (cdns_spi_read(xspi, CDNS_SPI_ISR_OFFSET) & ^~~~~~~~~~~~~~~~~~~ drivers//spi/spi-cadence.c:320:27: note: each undeclared identifier is reported only once for each function it appears in >> drivers//spi/spi-cadence.c:321:7: error: 'CDNS_SPI_IXR_TXFULL_MASK' undeclared (first use in this function) CDNS_SPI_IXR_TXFULL_MASK) ^~~~~~~~~~~~~~~~~~~~~~~~ vim +/CDNS_SPI_IXR_TXFULL_MASK +321 drivers//spi/spi-cadence.c 305 306 /** 307 * cdns_spi_fill_tx_fifo - Fills the TX FIFO with as many bytes as possible 308 * @xspi: Pointer to the cdns_spi structure 309 */ 310 static void cdns_spi_fill_tx_fifo(struct cdns_spi *xspi) 311 { 312 unsigned long trans_cnt = 0; 313 314 while ((trans_cnt < CDNS_SPI_FIFO_DEPTH) && 315 (xspi->tx_bytes > 0)) { 316 317 /* When xspi in busy condition, bytes may send failed, 318 * then spi control did't work thoroughly, add one byte delay 319 */ > 320 if (cdns_spi_read(xspi, CDNS_SPI_ISR_OFFSET) & > 321 CDNS_SPI_IXR_TXFULL_MASK) 322 usleep_range(10, 20); 323 324 if (xspi->txbuf) 325 cdns_spi_write(xspi, CDNS_SPI_TXD, *xspi->txbuf++); 326 else 327 cdns_spi_write(xspi, CDNS_SPI_TXD, 0); 328 329 xspi->tx_bytes--; 330 trans_cnt++; 331 } 332 } 333 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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