Messages in this thread | | | Date | Wed, 21 Nov 2018 15:56:34 -0500 | From | "Liam R. Howlett" <> | Subject | Out of tree module build errors since v4.20-rc1 |
| |
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.biesheuvel@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?
Thank you, Liam
| |