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module: Move livepatch support to a separate file

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No functional change.

This patch migrates livepatch support (i.e. used during module
add/or load and remove/or deletion) from core module code into
kernel/module/livepatch.c. At the moment it contains code to
persist Elf information about a given livepatch module, only.
The new file was added to MAINTAINERS.

Reviewed-by: Petr Mladek <pmladek@suse.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
This commit is contained in:
Aaron Tomlin 2022-03-22 14:03:34 +00:00 • committed by Luis Chamberlain
parent 5aff4dfdb4
commit 1be9473e31
6 changed files with 112 additions and 99 deletions
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11
include/linux/module.h
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@ -663,17 +663,14 @@ static inline bool module_requested_async_probing(struct module *module)
return module && module->async_probe_requested;
}
static inline bool is_livepatch_module(struct module *mod)
{
#ifdef CONFIG_LIVEPATCH
static inline bool is_livepatch_module(struct module *mod)
{
return mod->klp;
}
#else /* !CONFIG_LIVEPATCH */
static inline bool is_livepatch_module(struct module *mod)
{
#else
return false;
#endif
}
#endif /* CONFIG_LIVEPATCH */
bool is_module_sig_enforced(void);
void set_module_sig_enforced(void);