diff options
| -rw-r--r-- | include/linux/module.h | 5 | ||||
| -rw-r--r-- | kernel/module.c | 42 |
2 files changed, 30 insertions, 17 deletions
diff --git a/include/linux/module.h b/include/linux/module.h index 65cc6cc73ca8..49f4ad0ddec2 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -477,8 +477,9 @@ const struct kernel_symbol *find_symbol(const char *name, bool warn); /* Walk the exported symbol table */ -bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner, - unsigned int symnum, void *data), void *data); +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. */ diff --git a/kernel/module.c b/kernel/module.c index 0e6f97f43c88..e8aa462301e7 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -240,23 +240,24 @@ static bool each_symbol_in_section(const struct symsearch *arr, struct module *owner, bool (*fn)(const struct symsearch *syms, struct module *owner, - unsigned int symnum, void *data), + void *data), void *data) { - unsigned int i, j; + unsigned int j; for (j = 0; j < arrsize; j++) { - for (i = 0; i < arr[j].stop - arr[j].start; i++) - if (fn(&arr[j], owner, i, data)) - return true; + if (fn(&arr[j], owner, data)) + return true; } return false; } /* Returns true as soon as fn returns true, otherwise false. */ -bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner, - unsigned int symnum, void *data), void *data) +bool each_symbol_section(bool (*fn)(const struct symsearch *arr, + struct module *owner, + void *data), + void *data) { struct module *mod; static const struct symsearch arr[] = { @@ -309,7 +310,7 @@ bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner, } return false; } -EXPORT_SYMBOL_GPL(each_symbol); +EXPORT_SYMBOL_GPL(each_symbol_section); struct find_symbol_arg { /* Input */ @@ -323,15 +324,12 @@ struct find_symbol_arg { const struct kernel_symbol *sym; }; -static bool find_symbol_in_section(const struct symsearch *syms, - struct module *owner, - unsigned int symnum, void *data) +static bool check_symbol(const struct symsearch *syms, + struct module *owner, + unsigned int symnum, void *data) { struct find_symbol_arg *fsa = data; - if (strcmp(syms->start[symnum].name, fsa->name) != 0) - return false; - if (!fsa->gplok) { if (syms->licence == GPL_ONLY) return false; @@ -365,6 +363,20 @@ static bool find_symbol_in_section(const struct symsearch *syms, return true; } +static bool find_symbol_in_section(const struct symsearch *syms, + struct module *owner, + void *data) +{ + struct find_symbol_arg *fsa = data; + unsigned int i; + + for (i = 0; i < syms->stop - syms->start; i++) { + if (strcmp(syms->start[i].name, fsa->name) == 0) + return check_symbol(syms, owner, i, data); + } + return false; +} + /* Find a symbol and return it, along with, (optional) crc and * (optional) module which owns it. Needs preempt disabled or module_mutex. */ const struct kernel_symbol *find_symbol(const char *name, @@ -379,7 +391,7 @@ const struct kernel_symbol *find_symbol(const char *name, fsa.gplok = gplok; fsa.warn = warn; - if (each_symbol(find_symbol_in_section, &fsa)) { + if (each_symbol_section(find_symbol_in_section, &fsa)) { if (owner) *owner = fsa.owner; if (crc) |