On Mon, Jun 29, 2020 at 08:46:38PM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: c28e58ee9dadc99f79cf16ca805221feddd432ad > commit: 0289e9be5dc26d84dda6fc5492f08ca1ff599744 [1846/4145] hwrng: ba431 - add support for BA431 hwrng > config: s390-zfcpdump_defconfig (attached as .config) > compiler: s390-linux-gcc (GCC) 9.3.0 > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout 0289e9be5dc26d84dda6fc5492f08ca1ff599744 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > s390-linux-ld: drivers/char/hw_random/ba431-rng.o: in function `ba431_trng_probe': > >> ba431-rng.c:(.text+0xd4): undefined reference to `devm_ioremap_resource' This patch should fix the problem: ---8<--- The ba431 driver depends on HAS_IOMEM and this was missing from the Kconfig file. Reported-by: kernel test robot <lkp@xxxxxxxxx> Fixes: 0289e9be5dc2 ("hwrng: ba431 - add support for BA431 hwrng") Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 7b876dfdbaaf..edbaf6154764 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -76,6 +76,7 @@ config HW_RANDOM_ATMEL config HW_RANDOM_BA431 tristate "Silex Insight BA431 Random Number Generator support" + depends on HAS_IOMEM default HW_RANDOM help This driver provides kernel-side support for the Random Number -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
