On Tue, Jul 19, 2016 at 03:43:17AM +0800, kbuild test robot wrote: > tree: git://git.infradead.org/linux-mtd-next.git master > head: f78921b9020c510ed222a6c2402e2aa126432415 > commit: 140623410536905fa6ab737b625decfde6c64a72 [30/33] mtd: spi-nor: Add > driver for Cadence Quad SPI Flash Controller > config: x86_64-allmodconfig (attached as .config) > compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430 > reproduce: > git checkout 140623410536905fa6ab737b625decfde6c64a72 > # save the attached .config to linux build tree > make ARCH=x86_64 > > All errors (new ones prefixed by >>): > > drivers/mtd/spi-nor/cadence-quadspi.c: In function > 'cqspi_indirect_read_execute': > >> drivers/mtd/spi-nor/cadence-quadspi.c:529:4: error: implicit declaration > >> of function 'readsl' [-Werror=implicit-function-declaration] > readsl(ahb_base, rxbuf, DIV_ROUND_UP(bytes_to_read, 4)); > ^~~~~~ > drivers/mtd/spi-nor/cadence-quadspi.c: In function > 'cqspi_indirect_write_execute': > >> drivers/mtd/spi-nor/cadence-quadspi.c:613:3: error: implicit declaration > >> of function 'writesl' [-Werror=implicit-function-declaration] > writesl(cqspi->ahb_base, txbuf, DIV_ROUND_UP(write_bytes, 4)); > ^~~~~~~ > cc1: some warnings being treated as errors
Hmm, does x86 not define readsl()/writesl()? I can never tell what accessors are supposed to be "standard" across architectures. Either we need to drop the COMPILE_TEST or maybe make it (!X86 && COMPILE_TEST). Brian