On Wed, 2018-12-19 at 08:50 +0530, Aneesh Kumar K.V wrote: > Christoph Hellwig <hch@xxxxxxxxxxxxx> writes: > > > On Tue, Dec 18, 2018 at 03:11:37PM +0530, Aneesh Kumar K.V wrote: > > > +EXPORT_SYMBOL(huge_ptep_modify_prot_start); > > > > The only user of this function is the one you added in the last patch > > in mm/hugetlb.c, so there is no need to export this function. > > > > > + > > > +void huge_ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr, > > > + pte_t *ptep, pte_t old_pte, pte_t pte) > > > +{ > > > + > > > + if (radix_enabled()) > > > + return radix__huge_ptep_modify_prot_commit(vma, addr, ptep, > > > + old_pte, pte); > > > + set_huge_pte_at(vma->vm_mm, addr, ptep, pte); > > > +} > > > +EXPORT_SYMBOL(huge_ptep_modify_prot_commit); > > > > Same here. > > That was done considering that ptep_modify_prot_start/commit was defined > in asm-generic/pgtable.h. I was trying to make sure I didn't break > anything with the patch. Also s390 do have that EXPORT_SYMBOL() for the > same. hugetlb just inherited that. > > If you feel strongly about it, I can drop the EXPORT_SYMBOL(). At the very least it should be _GPL Cheers, Ben.