On Fri, Nov 20, 2020 at 08:33:46PM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: 95065cb54210eba86bed10cb2118041524d54573 > commit: 0e74dcd8333d794fdbc4bef69d17431404a01a6f [4170/7280] pwm: brcmstb: Convert to devm_platform_ioremap_resource() > config: s390-randconfig-r034-20201120 (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 > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=0e74dcd8333d794fdbc4bef69d17431404a01a6f > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout 0e74dcd8333d794fdbc4bef69d17431404a01a6f > # 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> > > Note: the linux-next/master HEAD 95065cb54210eba86bed10cb2118041524d54573 builds fine. > It may have been fixed somewhere. This is indeed the case, ffc32cb0e1f6 pwm: Fix dependencies on HAS_IOMEM is supposed to fix this. > s390-linux-ld: drivers/pwm/pwm-brcmstb.o: in function `brcmstb_pwm_probe': > >> pwm-brcmstb.c:(.text+0x466): undefined reference to `devm_platform_ioremap_resource' I expect that before the blamed commit (0e74dcd8333d ("pwm: brcmstb: Convert to devm_platform_ioremap_resource()")) the driver failed with: pwm-brcmstb.c:(.text+0xfoo): undefined reference to `devm_ioremap_resource' so it probably makes little sense to ensure the commit "pwm: Fix dependencies on HAS_IOMEM" comes before "pwm: brcmstb: Convert to devm_platform_ioremap_resource()" (and the other similar conversions). The only upside of rewriting the pwm-next tree would be that autobuilders wouldn't stumble because the error changed. Hardly good enough a reason, still more as the dependency is missing for quite some time already I guess. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | https://www.pengutronix.de/ |
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