On 1/25/21 9:58 PM, Nick Desaulniers wrote: > On Mon, Jan 25, 2021 at 12:47 PM Helge Deller <deller@xxxxxx> wrote: >> >>>>> On Sat, Jan 16, 2021 at 6:37 AM kernel test robot <lkp@xxxxxxxxx> wrote: >>>>>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >>>>>> head: 1d94330a437a573cfdf848f6743b1ed169242c8a >>>>>> commit: eff8728fe69880d3f7983bec3fb6cea4c306261f vmlinux.lds.h: Add PGO and AutoFDO input sections >>>>>> date: 5 months ago >>>>>> config: parisc-randconfig-r032-20210116 (attached as .config) >>>>>> compiler: hppa64-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/torvalds/linux.git/commit/?id=eff8728fe69880d3f7983bec3fb6cea4c306261f >>>>>> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >>>>>> git fetch --no-tags linus master >>>>>> git checkout eff8728fe69880d3f7983bec3fb6cea4c306261f >>>>>> # save the attached .config to linux build tree >>>>>> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc >>>>>> >>>>>> If you fix the issue, kindly add following tag as appropriate >>>>>> Reported-by: kernel test robot <lkp@xxxxxxxxx> >>>>>> >>>>>> All errors (new ones prefixed by >>): >>>>>> >>>>>> hppa64-linux-ld: mm/page_alloc.o(.ref.text+0x110): cannot reach unknown >>>>>> hppa64-linux-ld: mm/memblock.o(.text+0x27c): cannot reach __warn_printk >>>>>> hppa64-linux-ld: mm/memblock.o(.meminit.text+0xc4): cannot reach printk >> .... >> >> The problem with this .config is, that both CONFIG_MODULES and >> CONFIG_MLONGCALLS are set to "n". >> The Kconfig autodetection needs fixing to enable CONFIG_MLONGCALLS in >> this case. >> >> >> This patch fixes it for me: >> >> [PATCH] Require -mlong-calls gcc option for !CONFIG_MODULES >> >> When building a kernel without module support, the CONFIG_MLONGCALL >> option needs to be enabled. This patch fixes the autodetection in the >> Kconfig script and uses a far call to preempt_schedule_irq() in >> intr_do_preempt(). >> >> Signed-off-by: Helge Deller <deller@xxxxxx> >> Reported-by: kernel test robot <lkp@xxxxxxxxx> >> >> --- >> >> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig >> index 78b17621ee4a..278462186ac4 100644 >> --- a/arch/parisc/Kconfig >> +++ b/arch/parisc/Kconfig >> @@ -202,9 +202,8 @@ config PREFETCH >> depends on PA8X00 || PA7200 >> >> config MLONGCALLS >> - bool "Enable the -mlong-calls compiler option for big kernels" >> - default y if !MODULES || UBSAN || FTRACE >> - default n >> + def_bool y if !MODULES || UBSAN || FTRACE >> + bool "Enable the -mlong-calls compiler option for big kernels" if MODULES && !UBSAN && !FTRACE > > ^ this looks like the same constraints specified twice? Am I > understanding that correctly? (I don't understand why this isn't > specified _once_). The logic is: - if (!MODULES || UBSAN || FTRACE) then don't ask and always set to Y, - otherwise show menu entry but leave default as N. If this can be done in one line I'm happy to correct it. Helge
