Messages in this thread | | | Date | Thu, 3 Nov 2022 17:02:02 +0100 | From | Vasily Gorbik <> | Subject | Re: [PATCH] mm: hugetlb_vmemmap: include missing linux/moduleparam.h |
| |
On Thu, Nov 03, 2022 at 10:51:59AM +0800, Muchun Song wrote: > > > > On Nov 3, 2022, at 02:09, Vasily Gorbik <gor@linux.ibm.com> wrote: > > > > The kernel test robot reported build failures with a 'randconfig' on s390: > >>> mm/hugetlb_vmemmap.c:421:11: error: a function declaration without a > > prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes] > > core_param(hugetlb_free_vmemmap, vmemmap_optimize_enabled, bool, 0); > > ^ > > > > Link: https://lore.kernel.org/linux-mm/202210300751.rG3UDsuc-lkp@intel.com/ > > Reported-by: kernel test robot <lkp@intel.com> > > Fixes: 30152245c63b ("mm: hugetlb_vmemmap: replace early_param() with core_param()") > > Thanks for your fixing. However, the correct commit that should be fixed is > 42deddf3ef5c ("s390: select ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP"). > > Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Even on x86 the inclusion chain looks like: CC mm/hugetlb_vmemmap.o In file included from ./include/linux/module.h:22, from ./include/linux/device/driver.h:21, from ./include/linux/device.h:32, from ./include/linux/blk_types.h:11, from ./include/linux/writeback.h:13, from ./include/linux/memcontrol.h:22, from ./include/linux/swap.h:9, from ./include/asm-generic/hugetlb.h:5, from ./arch/x86/include/asm/hugetlb.h:6, from ./include/linux/hugetlb.h:802, from mm/hugetlb_vmemmap.h:11, from mm/hugetlb_vmemmap.c:18: ./include/linux/moduleparam.h:2:2: warning: #warning included from here
With s390 defconfig: CC mm/hugetlb_vmemmap.o In file included from ./include/linux/module.h:22, from ./include/linux/device/driver.h:21, from ./include/linux/device.h:32, from ./include/linux/blk_types.h:11, from ./include/linux/writeback.h:13, from ./include/linux/memcontrol.h:22, from ./include/linux/swap.h:9, from ./include/linux/userfaultfd_k.h:18, <-- randconfig disabled this path (CONFIG_USERFAULTFD) from ./include/linux/hugetlb.h:14, from mm/hugetlb_vmemmap.h:11, from mm/hugetlb_vmemmap.c:17: ./include/linux/moduleparam.h:2:2: warning: #warning included from here
42deddf3ef5c ("s390: select ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP") is just a one liner activating this feature and only present in linux-next and s390 features branch targeting v6.2. So, if you don't want to have
Fixes: 30152245c63b ("mm: hugetlb_vmemmap: replace early_param() with core_param()")
fine with me. But then just dropping Fixes tag is probably a better option. I hope that won't prevent it from going into some v6.1-rcX.
@Andrew should I resend? or would you be so kind to drop Fixes tag and add Reviewed-by without it? Thank you
| |