Re: [PATCH v2 1/2] pwm: add microchip soft ip corePWM driver

[Conor.Dooley]

>     xtensa-linux-ld: drivers/pwm/pwm-microchip-core.o: in function `mchp_core_pwm_enable.isra.0':
>>> pwm-microchip-core.c:(.text+0x380): undefined reference to `__udivdi3'
>     xtensa-linux-ld: drivers/pwm/pwm-microchip-core.o: in function `mchp_core_pwm_apply':
>     pwm-microchip-core.c:(.text+0x586): undefined reference to `__udivdi3'

I assume this is me using functions that are only defined for 64 bit...

On 14/06/2022 11:25, kernel test robot wrote:
> Hi Conor,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on thierry-reding-pwm/for-next]
> [also build test ERROR on linus/master v5.19-rc2 next-20220614]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Conor-Dooley/pwm-add-microchip-soft-ip-corePWM-driver/20220613-211851
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm.git for-next
> config: xtensa-allyesconfig (https://download.01.org/0day-ci/archive/20220614/202206141813.qgogbMAN-lkp@xxxxxxxxx/config)
> compiler: xtensa-linux-gcc (GCC) 11.3.0
> 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://github.com/intel-lab-lkp/linux/commit/4451a8420f9fd16ee9a0801fcf02f1ec04bb8ab0
>          git remote add linux-review https://github.com/intel-lab-lkp/linux
>          git fetch --no-tags linux-review Conor-Dooley/pwm-add-microchip-soft-ip-corePWM-driver/20220613-211851
>          git checkout 4451a8420f9fd16ee9a0801fcf02f1ec04bb8ab0
>          # save the config file
>          mkdir build_dir && cp config build_dir/.config
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=xtensa SHELL=/bin/bash
> 
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> 
> All errors (new ones prefixed by >>):
> 
>     `.exit.text' referenced in section `__jump_table' of fs/cifs/cifsfs.o: defined in discarded section `.exit.text' of fs/cifs/cifsfs.o
>     `.exit.text' referenced in section `__jump_table' of fs/cifs/cifsfs.o: defined in discarded section `.exit.text' of fs/cifs/cifsfs.o
>     `.exit.text' referenced in section `__jump_table' of fs/fuse/inode.o: defined in discarded section `.exit.text' of fs/fuse/inode.o
>     `.exit.text' referenced in section `__jump_table' of fs/fuse/inode.o: defined in discarded section `.exit.text' of fs/fuse/inode.o
>     `.exit.text' referenced in section `__jump_table' of fs/ceph/super.o: defined in discarded section `.exit.text' of fs/ceph/super.o
>     `.exit.text' referenced in section `__jump_table' of fs/ceph/super.o: defined in discarded section `.exit.text' of fs/ceph/super.o
>     xtensa-linux-ld: drivers/pwm/pwm-microchip-core.o: in function `mchp_core_pwm_enable.isra.0':
>>> pwm-microchip-core.c:(.text+0x380): undefined reference to `__udivdi3'
>     xtensa-linux-ld: drivers/pwm/pwm-microchip-core.o: in function `mchp_core_pwm_apply':
>     pwm-microchip-core.c:(.text+0x586): undefined reference to `__udivdi3'
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/rio_cm.o: defined in discarded section `.exit.text' of drivers/rapidio/rio_cm.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/rio_cm.o: defined in discarded section `.exit.text' of drivers/rapidio/rio_cm.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/switches/idt_gen2.o: defined in discarded section `.exit.text' of drivers/rapidio/switches/idt_gen2.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/switches/idt_gen2.o: defined in discarded section `.exit.text' of drivers/rapidio/switches/idt_gen2.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/switches/idt_gen2.o: defined in discarded section `.exit.text' of drivers/rapidio/switches/idt_gen2.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/switches/idt_gen2.o: defined in discarded section `.exit.text' of drivers/rapidio/switches/idt_gen2.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/switches/idt_gen3.o: defined in discarded section `.exit.text' of drivers/rapidio/switches/idt_gen3.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/switches/idt_gen3.o: defined in discarded section `.exit.text' of drivers/rapidio/switches/idt_gen3.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/switches/idt_gen3.o: defined in discarded section `.exit.text' of drivers/rapidio/switches/idt_gen3.o
>     `.exit.text' referenced in section `__jump_table' of drivers/rapidio/switches/idt_gen3.o: defined in discarded section `.exit.text' of drivers/rapidio/switches/idt_gen3.o
>     `.exit.text' referenced in section `__jump_table' of drivers/video/fbdev/vt8623fb.o: defined in discarded section `.exit.text' of drivers/video/fbdev/vt8623fb.o
>     `.exit.text' referenced in section `__jump_table' of drivers/video/fbdev/vt8623fb.o: defined in discarded section `.exit.text' of drivers/video/fbdev/vt8623fb.o
>     `.exit.text' referenced in section `__jump_table' of drivers/video/fbdev/s3fb.o: defined in discarded section `.exit.text' of drivers/video/fbdev/s3fb.o
>     `.exit.text' referenced in section `__jump_table' of drivers/video/fbdev/s3fb.o: defined in discarded section `.exit.text' of drivers/video/fbdev/s3fb.o
>     `.exit.text' referenced in section `__jump_table' of drivers/video/fbdev/arkfb.o: defined in discarded section `.exit.text' of drivers/video/fbdev/arkfb.o
>     `.exit.text' referenced in section `__jump_table' of drivers/video/fbdev/arkfb.o: defined in discarded section `.exit.text' of drivers/video/fbdev/arkfb.o
>     `.exit.text' referenced in section `__jump_table' of drivers/misc/phantom.o: defined in discarded section `.exit.text' of drivers/misc/phantom.o
>     `.exit.text' referenced in section `__jump_table' of drivers/misc/phantom.o: defined in discarded section `.exit.text' of drivers/misc/phantom.o
>     `.exit.text' referenced in section `__jump_table' of drivers/misc/habanalabs/common/habanalabs_drv.o: defined in discarded section `.exit.text' of drivers/misc/habanalabs/common/habanalabs_drv.o
>     `.exit.text' referenced in section `__jump_table' of drivers/misc/habanalabs/common/habanalabs_drv.o: defined in discarded section `.exit.text' of drivers/misc/habanalabs/common/habanalabs_drv.o
>     `.exit.text' referenced in section `__jump_table' of drivers/scsi/fcoe/fcoe.o: defined in discarded section `.exit.text' of drivers/scsi/fcoe/fcoe.o
>     `.exit.text' referenced in section `__jump_table' of drivers/scsi/fcoe/fcoe.o: defined in discarded section `.exit.text' of drivers/scsi/fcoe/fcoe.o
>     `.exit.text' referenced in section `__jump_table' of drivers/scsi/cxgbi/libcxgbi.o: defined in discarded section `.exit.text' of drivers/scsi/cxgbi/libcxgbi.o
>     `.exit.text' referenced in section `__jump_table' of drivers/scsi/cxgbi/libcxgbi.o: defined in discarded section `.exit.text' of drivers/scsi/cxgbi/libcxgbi.o
>     `.exit.text' referenced in section `__jump_table' of drivers/target/target_core_configfs.o: defined in discarded section `.exit.text' of drivers/target/target_core_configfs.o
>     `.exit.text' referenced in section `__jump_table' of drivers/target/target_core_configfs.o: defined in discarded section `.exit.text' of drivers/target/target_core_configfs.o
>     `.exit.text' referenced in section `__jump_table' of drivers/mtd/maps/pcmciamtd.o: defined in discarded section `.exit.text' of drivers/mtd/maps/pcmciamtd.o
>     `.exit.text' referenced in section `__jump_table' of drivers/mtd/maps/pcmciamtd.o: defined in discarded section `.exit.text' of drivers/mtd/maps/pcmciamtd.o
>     `.exit.text' referenced in section `__jump_table' of drivers/net/wireless/zydas/zd1211rw/zd_usb.o: defined in discarded section `.exit.text' of drivers/net/wireless/zydas/zd1211rw/zd_usb.o
>     `.exit.text' referenced in section `__jump_table' of drivers/net/wireless/zydas/zd1211rw/zd_usb.o: defined in discarded section `.exit.text' of drivers/net/wireless/zydas/zd1211rw/zd_usb.o
>     `.exit.text' referenced in section `__jump_table' of drivers/net/wireless/ray_cs.o: defined in discarded section `.exit.text' of drivers/net/wireless/ray_cs.o
>     `.exit.text' referenced in section `__jump_table' of drivers/net/wireless/ray_cs.o: defined in discarded section `.exit.text' of drivers/net/wireless/ray_cs.o
>     `.exit.text' referenced in section `__jump_table' of drivers/net/wireless/mac80211_hwsim.o: defined in discarded section `.exit.text' of drivers/net/wireless/mac80211_hwsim.o
>     `.exit.text' referenced in section `__jump_table' of drivers/net/wireless/mac80211_hwsim.o: defined in discarded section `.exit.text' of drivers/net/wireless/mac80211_hwsim.o
>     `.exit.text' referenced in section `__jump_table' of drivers/usb/gadget/legacy/inode.o: defined in discarded section `.exit.text' of drivers/usb/gadget/legacy/inode.o
>     `.exit.text' referenced in section `__jump_table' of drivers/usb/gadget/legacy/inode.o: defined in discarded section `.exit.text' of drivers/usb/gadget/legacy/inode.o
>     `.exit.text' referenced in section `__jump_table' of drivers/usb/gadget/legacy/g_ffs.o: defined in discarded section `.exit.text' of drivers/usb/gadget/legacy/g_ffs.o
>     `.exit.text' referenced in section `__jump_table' of drivers/usb/gadget/legacy/g_ffs.o: defined in discarded section `.exit.text' of drivers/usb/gadget/legacy/g_ffs.o
>     `.exit.text' referenced in section `__jump_table' of drivers/media/common/siano/smscoreapi.o: defined in discarded section `.exit.text' of drivers/media/common/siano/smscoreapi.o
>     `.exit.text' referenced in section `__jump_table' of drivers/media/common/siano/smscoreapi.o: defined in discarded section `.exit.text' of drivers/media/common/siano/smscoreapi.o
>     `.exit.text' referenced in section `__jump_table' of drivers/vme/bridges/vme_fake.o: defined in discarded section `.exit.text' of drivers/vme/bridges/vme_fake.o
>     `.exit.text' referenced in section `__jump_table' of drivers/vme/bridges/vme_fake.o: defined in discarded section `.exit.text' of drivers/vme/bridges/vme_fake.o
>     `.exit.text' referenced in section `.data' of sound/soc/codecs/tlv320adc3xxx.o: defined in discarded section `.exit.text' of sound/soc/codecs/tlv320adc3xxx.o
>     `.exit.text' referenced in section `__jump_table' of net/netfilter/nf_conntrack_h323_main.o: defined in discarded section `.exit.text' of net/netfilter/nf_conntrack_h323_main.o
>     `.exit.text' referenced in section `__jump_table' of net/netfilter/nf_conntrack_h323_main.o: defined in discarded section `.exit.text' of net/netfilter/nf_conntrack_h323_main.o
>     `.exit.text' referenced in section `__jump_table' of net/netfilter/ipset/ip_set_core.o: defined in discarded section `.exit.text' of net/netfilter/ipset/ip_set_core.o
>     `.exit.text' referenced in section `__jump_table' of net/netfilter/ipset/ip_set_core.o: defined in discarded section `.exit.text' of net/netfilter/ipset/ip_set_core.o
>     `.exit.text' referenced in section `__jump_table' of net/ceph/ceph_common.o: defined in discarded section `.exit.text' of net/ceph/ceph_common.o
>     `.exit.text' referenced in section `__jump_table' of net/ceph/ceph_common.o: defined in discarded section `.exit.text' of net/ceph/ceph_common.o
>