Hi Hauke, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git topic/lantiq-ssc head: 30fb27239f987c53429f24297f5d46e28d0e16ed commit: 582c97f6868cf70720a17d2421d317333f3ad597 [11/12] spi: lantiq-ssc: activate under COMPILE_TEST config: blackfin-allmodconfig (attached as .config) compiler: bfin-uclinux-gcc (GCC) 6.2.0 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 git checkout 582c97f6868cf70720a17d2421d317333f3ad597 # save the attached .config to linux build tree make.cross ARCH=blackfin All warnings (new ones prefixed by >>): >> drivers/spi/spi-lantiq-ssc.c:38:0: warning: "SPI_STAT" redefined #define SPI_STAT 0x14 In file included from arch/blackfin/mach-bf533/include/mach/blackfin.h:16:0, from arch/blackfin/include/asm/irqflags.h:11, from include/linux/irqflags.h:15, from arch/blackfin/include/asm/bitops.h:33, from include/linux/bitops.h:36, from include/linux/kernel.h:10, from drivers/spi/spi-lantiq-ssc.c:10: arch/blackfin/mach-bf533/include/mach/defBF532.h:74:0: note: this is the location of the previous definition #define SPI_STAT 0xFFC00508 /* SPI Status register */ vim +/SPI_STAT +38 drivers/spi/spi-lantiq-ssc.c 17f84b79 Hauke Mehrtens 2017-02-14 22 #include <linux/pm_runtime.h> 17f84b79 Hauke Mehrtens 2017-02-14 23 #include <linux/spi/spi.h> 17f84b79 Hauke Mehrtens 2017-02-14 24 17f84b79 Hauke Mehrtens 2017-02-14 25 #ifdef CONFIG_LANTIQ 17f84b79 Hauke Mehrtens 2017-02-14 26 #include <lantiq_soc.h> 17f84b79 Hauke Mehrtens 2017-02-14 27 #endif 17f84b79 Hauke Mehrtens 2017-02-14 28 17f84b79 Hauke Mehrtens 2017-02-14 29 #define SPI_RX_IRQ_NAME "spi_rx" 17f84b79 Hauke Mehrtens 2017-02-14 30 #define SPI_TX_IRQ_NAME "spi_tx" 17f84b79 Hauke Mehrtens 2017-02-14 31 #define SPI_ERR_IRQ_NAME "spi_err" 17f84b79 Hauke Mehrtens 2017-02-14 32 #define SPI_FRM_IRQ_NAME "spi_frm" 17f84b79 Hauke Mehrtens 2017-02-14 33 17f84b79 Hauke Mehrtens 2017-02-14 34 #define SPI_CLC 0x00 17f84b79 Hauke Mehrtens 2017-02-14 35 #define SPI_PISEL 0x04 17f84b79 Hauke Mehrtens 2017-02-14 36 #define SPI_ID 0x08 17f84b79 Hauke Mehrtens 2017-02-14 37 #define SPI_CON 0x10 17f84b79 Hauke Mehrtens 2017-02-14 @38 #define SPI_STAT 0x14 17f84b79 Hauke Mehrtens 2017-02-14 39 #define SPI_WHBSTATE 0x18 17f84b79 Hauke Mehrtens 2017-02-14 40 #define SPI_TB 0x20 17f84b79 Hauke Mehrtens 2017-02-14 41 #define SPI_RB 0x24 17f84b79 Hauke Mehrtens 2017-02-14 42 #define SPI_RXFCON 0x30 17f84b79 Hauke Mehrtens 2017-02-14 43 #define SPI_TXFCON 0x34 17f84b79 Hauke Mehrtens 2017-02-14 44 #define SPI_FSTAT 0x38 17f84b79 Hauke Mehrtens 2017-02-14 45 #define SPI_BRT 0x40 17f84b79 Hauke Mehrtens 2017-02-14 46 #define SPI_BRSTAT 0x44 :::::: The code at line 38 was first introduced by commit :::::: 17f84b793c01452e8802ef80324863b8da7d900b spi: lantiq-ssc: add support for Lantiq SSC SPI controller :::::: TO: Hauke Mehrtens <hauke@xxxxxxxxxx> :::::: CC: Mark Brown <broonie@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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