> On Nov 21, 2018, at 12:56 PM, Liam R. Howlett <liam.howl...@oracle.com> wrote: > > > My out of tree driver build is now reporting issues with the jump table: > > ./include/linux/jump_label.h: In function ‘jump_entry_code’: > ./include/linux/jump_label.h:153:14: error: dereferencing pointer to > incomplete type ‘const struct jump_entry’ > return entry->code; > ^~ > ./include/linux/jump_label.h: In function ‘jump_entry_set_init’: > ./include/linux/jump_label.h:180:7: error: dereferencing pointer to > incomplete type ‘struct jump_entry’ > entry->key |= 2; > ^~ > ./include/linux/jump_label.h: At top level: > ./include/linux/jump_label.h:212:26: error: array type has incomplete element > type ‘struct jump_entry’ > extern struct jump_entry __start___jump_table[]; > ^~~~~~~~~~~~~~~~~~~~ > ./include/linux/jump_label.h:213:26: error: array type has incomplete element > type ‘struct jump_entry’ > extern struct jump_entry __stop___jump_table[]; > ^~~~~~~~~~~~~~~~~~~ > > > This happens in v4.20-rc3 as well, so I bisected between v4.19 to > v4.20-rc1 which resulted in the following commit: > > b34006c4258c9c86597b6b7123d6a9a3513d6cd7 is the first bad commit > commit b34006c4258c9c86597b6b7123d6a9a3513d6cd7 > Author: Ard Biesheuvel <ard.biesheu...@linaro.org> > Date: Tue Sep 18 23:51:41 2018 -0700 > > x86/jump_table: Use relative references > > > > > Initially I assumed this was my own fault, but my module does not have > these issues when using v4.19. Is there anything I should try/change in > my module makefile, includes, etc to support this relative reference > code?
Do you see HAVE_ARCH_JUMP_LABEL_RELATIVE set in your kernel config?
