On Sun, 2022-03-13 at 03:11 +0530, shaikh kamal wrote: [] > diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c [] > @@ -377,7 +377,7 @@ ashmem_vmfile_get_unmapped_area(struct file *file, unsigned long addr, > > static int ashmem_mmap(struct file *file, struct vm_area_struct *vma) > { > - static struct file_operations vmfile_fops; > + static const struct file_operations vmfile_fops; Make sure to compile any files modified by your suggested patches _before_ sending the patches.