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Modules updates for v4.12

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Summary of modules changes for the 4.12 merge window:
 
 - Minor code cleanups
 
 - Fix section alignment for .init_array
 
 Signed-off-by: Jessica Yu <jeyu@redhat.com>
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Merge tag 'modules-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux

Pull modules updates from Jessica Yu:

 - Minor code cleanups

 - Fix section alignment for .init_array

* tag 'modules-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  kallsyms: Use bounded strnchr() when parsing string
  module: Unify the return value type of try_module_get
  module: set .init_array alignment to 8
This commit is contained in:
Linus Torvalds 2017-05-03 19:12:27 -07:00
commit a1be8edda4
3 changed files with 5 additions and 6 deletions
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6
include/linux/module.h
View File

@ -583,7 +583,7 @@ extern bool try_module_get(struct module *module);
extern void module_put(struct module *module);
#else /*!CONFIG_MODULE_UNLOAD*/
static inline int try_module_get(struct module *module)
static inline bool try_module_get(struct module *module)
{
return !module || module_is_live(module);
}
@ -680,9 +680,9 @@ static inline void __module_get(struct module *module)
{
}
static inline int try_module_get(struct module *module)
static inline bool try_module_get(struct module *module)
{
return 1;
return true;
}
static inline void module_put(struct module *module)

2
kernel/module.c
View File

@ -4035,7 +4035,7 @@ unsigned long module_kallsyms_lookup_name(const char *name)
/* Don't lock: we're in enough trouble already. */
preempt_disable();
if ((colon = strchr(name, ':')) != NULL) {
if ((colon = strnchr(name, MODULE_NAME_LEN, ':')) != NULL) {
if ((mod = find_module_all(name, colon - name, false)) != NULL)
ret = mod_find_symname(mod, colon+1);
} else {

3
scripts/module-common.lds
View File

@ -20,8 +20,7 @@ SECTIONS {
__kcrctab_unused_gpl 0 : { *(SORT(___kcrctab_unused_gpl+*)) }
__kcrctab_gpl_future 0 : { *(SORT(___kcrctab_gpl_future+*)) }
. = ALIGN(8);
.init_array 0 : { *(SORT(.init_array.*)) *(.init_array) }
.init_array 0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) }
__jump_table 0 : ALIGN(8) { KEEP(*(__jump_table)) }
}