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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-14 11:07:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-14 11:07:02 -0700
commit0fd9cc6b0c72245375520ffc8d97ce5857b63b94 (patch)
tree97bcbc980dc81f87056e8ab6bdbb37af72a341ec /include
parent32b2ee5cea4d281f4f3f5a34d6363d1841422040 (diff)
parent262e6ae7081df304fc625cf368d5c2cbba2bb991 (diff)
Merge tag 'modules-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull module updates from Jessica Yu: "The most important change would be Christoph Hellwig's patch implementing proprietary taint inheritance, in an effort to discourage the creation of GPL "shim" modules that interface between GPL symbols and proprietary symbols. Summary: - Have modules that use symbols from proprietary modules inherit the TAINT_PROPRIETARY_MODULE taint, in an effort to prevent GPL shim modules that are used to circumvent _GPL exports. These are modules that claim to be GPL licensed while also using symbols from proprietary modules. Such modules will be rejected while non-GPL modules will inherit the proprietary taint. - Module export space cleanup. Unexport symbols that are unused outside of module.c or otherwise used in only built-in code" * tag 'modules-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: modules: inherit TAINT_PROPRIETARY_MODULE modules: return licensing information from find_symbol modules: rename the licence field in struct symsearch to license modules: unexport __module_address modules: unexport __module_text_address modules: mark each_symbol_section static modules: mark find_symbol static modules: mark ref_module static modules: linux/moduleparam.h: drop duplicated word in a comment
Diffstat (limited to 'include')
-rw-r--r--include/linux/module.h26
-rw-r--r--include/linux/moduleparam.h2
2 files changed, 4 insertions, 24 deletions
diff --git a/include/linux/module.h b/include/linux/module.h
index 2e6670860d27..e30ed5fa33a7 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -389,6 +389,7 @@ struct module {
unsigned int num_gpl_syms;
const struct kernel_symbol *gpl_syms;
const s32 *gpl_crcs;
+ bool using_gplonly_symbols;
#ifdef CONFIG_UNUSED_SYMBOLS
/* unused exported symbols. */
@@ -582,34 +583,14 @@ struct module *find_module(const char *name);
struct symsearch {
const struct kernel_symbol *start, *stop;
const s32 *crcs;
- enum {
+ enum mod_license {
NOT_GPL_ONLY,
GPL_ONLY,
WILL_BE_GPL_ONLY,
- } licence;
+ } license;
bool unused;
};
-/*
- * Search for an exported symbol by name.
- *
- * Must be called with module_mutex held or preemption disabled.
- */
-const struct kernel_symbol *find_symbol(const char *name,
- struct module **owner,
- const s32 **crc,
- bool gplok,
- bool warn);
-
-/*
- * Walk the exported symbol table
- *
- * Must be called with module_mutex held or preemption disabled.
- */
-bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
- struct module *owner,
- void *data), void *data);
-
/* Returns 0 and fills in value, defined and namebuf, or -ERANGE if
symnum out of range. */
int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
@@ -657,7 +638,6 @@ static inline void __module_get(struct module *module)
#define symbol_put_addr(p) do { } while (0)
#endif /* CONFIG_MODULE_UNLOAD */
-int ref_module(struct module *a, struct module *b);
/* This is a #define so the string doesn't get put in every .o file */
#define module_name(mod) \
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 3ef917ff0964..1ad5aa3b86d9 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -108,7 +108,7 @@ struct kparam_array
* ".") the kernel commandline parameter. Note that - is changed to _, so
* the user can use "foo-bar=1" even for variable "foo_bar".
*
- * @perm is 0 if the the variable is not to appear in sysfs, or 0444
+ * @perm is 0 if the variable is not to appear in sysfs, or 0444
* for world-readable, 0644 for root-writable, etc. Note that if it
* is writable, you may need to use kernel_param_lock() around
* accesses (esp. charp, which can be kfreed when it changes).