diff options
| author | Petr Pavlu <petr.pavlu@suse.com> | 2026-01-23 11:26:57 +0100 |
|---|---|---|
| committer | Josh Poimboeuf <jpoimboe@kernel.org> | 2026-02-05 08:00:45 -0800 |
| commit | b525fcaf0a76507f152d58c6f9e5ef67b3ff552c (patch) | |
| tree | f83ffd77f6e53652c52ffb1db86c13d3cd914705 /scripts | |
| parent | ab10815472fcbc2c772dc21a979460b7f74f0145 (diff) | |
livepatch: Free klp_{object,func}_ext data after initialization
The klp_object_ext and klp_func_ext data, which are stored in the
__klp_objects and __klp_funcs sections, respectively, are not needed
after they are used to create the actual klp_object and klp_func
instances. This operation is implemented by the init function in
scripts/livepatch/init.c.
Prefix the two sections with ".init" so they are freed after the module
is initializated.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Aaron Tomlin <atomlin@atomlin.com>
Link: https://patch.msgid.link/20260123102825.3521961-3-petr.pavlu@suse.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/livepatch/init.c | 2 | ||||
| -rw-r--r-- | scripts/module.lds.S | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/scripts/livepatch/init.c b/scripts/livepatch/init.c index 9e315fc857bd..638c95cffe76 100644 --- a/scripts/livepatch/init.c +++ b/scripts/livepatch/init.c @@ -19,7 +19,7 @@ static int __init livepatch_mod_init(void) unsigned int nr_objs; int ret; - obj_exts = klp_find_section_by_name(THIS_MODULE, "__klp_objects", + obj_exts = klp_find_section_by_name(THIS_MODULE, ".init.klp_objects", &obj_exts_sec_size); nr_objs = obj_exts_sec_size / sizeof(*obj_exts); if (!nr_objs) { diff --git a/scripts/module.lds.S b/scripts/module.lds.S index 383d19beffb4..054ef99e8288 100644 --- a/scripts/module.lds.S +++ b/scripts/module.lds.S @@ -34,8 +34,8 @@ SECTIONS { __patchable_function_entries : { *(__patchable_function_entries) } - __klp_funcs 0: ALIGN(8) { KEEP(*(__klp_funcs)) } - __klp_objects 0: ALIGN(8) { KEEP(*(__klp_objects)) } + .init.klp_funcs 0 : ALIGN(8) { KEEP(*(.init.klp_funcs)) } + .init.klp_objects 0 : ALIGN(8) { KEEP(*(.init.klp_objects)) } #ifdef CONFIG_ARCH_USES_CFI_TRAPS __kcfi_traps : { KEEP(*(.kcfi_traps)) } |