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livepatch: create temporary klp_update_patch_state() stub 

Create temporary stubs for klp_update_patch_state() so we can add
TIF_PATCH_PENDING to different architectures in separate patches without
breaking build bisectability.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Josh Poimboeuf 2017-02-13 19:42:30 -06:00 committed by Jiri Kosina
parent 3a40484254
commit 46c5a0113f
2 changed files with 7 additions and 1 deletions
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5
include/linux/livepatch.h
View File

@ -123,10 +123,13 @@ void arch_klp_init_object_loaded(struct klp_patch *patch,
int klp_module_coming(struct module *mod);
void klp_module_going(struct module *mod);
void klp_update_patch_state(struct task_struct *task);
#else /* !CONFIG_LIVEPATCH */
static inline int klp_module_coming(struct module *mod) { return 0; }
static inline void klp_module_going(struct module *mod) { }
static inline void klp_module_going(struct module *mod) {}
static inline void klp_update_patch_state(struct task_struct *task) {}
#endif /* CONFIG_LIVEPATCH */

3
kernel/livepatch/core.c
View File

@ -64,6 +64,9 @@ static LIST_HEAD(klp_ops);
static struct kobject *klp_root_kobj;
/* TODO: temporary stub */
void klp_update_patch_state(struct task_struct *task) {}
static struct klp_ops *klp_find_ops(unsigned long old_addr)
{
struct klp_ops *ops;