Hello Randy, I did address this when it occurred on the 24th [1]. I had looked at this and was thinking I would rename the maple tree function, but Matthew suggested renaming the mips function instead. I looked into the conflict and the arch/mips/kernel/mips-mt.c uses the mips_ prefix for almost all of the functions. So I generated a patch on my tree for next-20220225 which fixes the issue by renaming the mips side of things. Please see 51e773764d11 for the very small rename. [1] https://lore.kernel.org/linux-mm/202202241817.MXoE0NcM-lkp@xxxxxxxxx/ Thanks, Liam * Randy Dunlap <rdunlap@xxxxxxxxxxxxx> [220305 22:50]: > Hi Liam, > > Would you consider renaming maple tree's "mt_init()" function to > maple_tree_init() or mtree_init() or something that does not > conflict with the mt_init() function in arch/mips/ so that > these build errors don't happen? > > thanks. > > On 2/24/22 23:09, Naresh Kamboju wrote: > > [Please ignore this email if it is already reported] > > > > Linux next-20220224 arch mips build errors / warnings noticed [1]. > > > > Build configs: > > - mips-gcc-8-malta_defconfig > > - mips-gcc-10-malta_defconfig > > - mips-gcc-8-defconfig > > - mips-gcc-10-defconfig > > > > metadata: > > git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next > > git_sha: 44948bd49d878dad6c9707e34f4a06df73c3a800 > > git_short_log: 44948bd49d87 (\Add linux-next specific files for 20220224\) > > kconfig: defconfig > > target_arch: mips > > toolchain: gcc-10 > > > > > > Build errors / warnings: > > > > arch/mips/kernel/mips-mt.c:233:19: error: conflicting types for 'mt_init' > > 233 | static int __init mt_init(void) > > | ^~~~~~~ > > In file included from include/linux/mm_types.h:12, > > from include/linux/mmzone.h:21, > > from include/linux/gfp.h:6, > > from include/linux/radix-tree.h:12, > > from include/linux/idr.h:15, > > from include/linux/kernfs.h:12, > > from include/linux/sysfs.h:16, > > from include/linux/kobject.h:20, > > from include/linux/energy_model.h:7, > > from include/linux/device.h:16, > > from arch/mips/kernel/mips-mt.c:7: > > include/linux/maple_tree.h:589:20: note: previous definition of > > 'mt_init' was here > > 589 | static inline void mt_init(struct maple_tree *mt) > > | ^~~~~~~ > > make[3]: *** [scripts/Makefile.build:288: arch/mips/kernel/mips-mt.o] Error 1 > > > > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> > > > > Steps to reproduce: > > ------------------ > > # To install tuxmake on your system globally: > > # sudo pip3 install -U tuxmake > > > > tuxmake --runtime podman --target-arch mips --toolchain gcc-10 > > --kconfig defconfig > > > > -- > > > > [1] https://builds.tuxbuild.com/25aFF2X7uoyebURaYzNHW9FVEmN/ > > -- > ~Randy
