1 files changed, 39 insertions, 8 deletions

diff --git a/kernel/module.c b/kernel/module.c
index 152b1655bbac..25bc9ac9e226 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -100,7 +100,7 @@ static inline int strong_try_module_get(struct module *mod)
 static inline void add_taint_module(struct module *mod, unsigned flag)
 {
         add_taint(flag);
-        mod->taints |= flag;
+        mod->taints |= (1U << flag);
 }
 
 /*
@@ -784,6 +784,7 @@ sys_delete_module(const char __user *name_user, unsigned int flags)
         mutex_lock(&module_mutex);
         /* Store the name of the last unloaded module for diagnostic purposes */
         strlcpy(last_unloaded_module, mod->name, sizeof(last_unloaded_module));
+        unregister_dynamic_debug_module(mod->name);
         free_module(mod);
 
  out:
@@ -923,7 +924,7 @@ static const char vermagic[] = VERMAGIC_STRING;
 static int try_to_force_load(struct module *mod, const char *symname)
 {
 #ifdef CONFIG_MODULE_FORCE_LOAD
-        if (!(tainted & TAINT_FORCED_MODULE))
+        if (!test_taint(TAINT_FORCED_MODULE))
                 printk("%s: no version for \"%s\" found: kernel tainted.\n",
                        mod->name, symname);
         add_taint_module(mod, TAINT_FORCED_MODULE);
@@ -1033,7 +1034,7 @@ static unsigned long resolve_symbol(Elf_Shdr *sechdrs,
         const unsigned long *crc;
 
         ret = find_symbol(name, &owner, &crc,
-                          !(mod->taints & TAINT_PROPRIETARY_MODULE), true);
+                          !(mod->taints & (1 << TAINT_PROPRIETARY_MODULE)), true);
         if (!IS_ERR_VALUE(ret)) {
                 /* use_module can fail due to OOM,
                    or module initialization or unloading */
@@ -1173,7 +1174,7 @@ static void free_notes_attrs(struct module_notes_attrs *notes_attrs,
                 while (i-- > 0)
                         sysfs_remove_bin_file(notes_attrs->dir,
                                               &notes_attrs->attrs[i]);
-                kobject_del(notes_attrs->dir);
+                kobject_put(notes_attrs->dir);
         }
         kfree(notes_attrs);
 }
@@ -1634,7 +1635,7 @@ static void set_license(struct module *mod, const char *license)
                 license = "unspecified";
 
         if (!license_is_gpl_compatible(license)) {
-                if (!(tainted & TAINT_PROPRIETARY_MODULE))
+                if (!test_taint(TAINT_PROPRIETARY_MODULE))
                         printk(KERN_WARNING "%s: module license '%s' taints "
                                 "kernel.\n", mod->name, license);
                 add_taint_module(mod, TAINT_PROPRIETARY_MODULE);
@@ -1783,6 +1784,33 @@ static inline void add_kallsyms(struct module *mod,
 }
 #endif /* CONFIG_KALLSYMS */
 
+#ifdef CONFIG_DYNAMIC_PRINTK_DEBUG
+static void dynamic_printk_setup(Elf_Shdr *sechdrs, unsigned int verboseindex)
+{
+        struct mod_debug *debug_info;
+        unsigned long pos, end;
+        unsigned int num_verbose;
+
+        pos = sechdrs[verboseindex].sh_addr;
+        num_verbose = sechdrs[verboseindex].sh_size /
+                                sizeof(struct mod_debug);
+        end = pos + (num_verbose * sizeof(struct mod_debug));
+
+        for (; pos < end; pos += sizeof(struct mod_debug)) {
+                debug_info = (struct mod_debug *)pos;
+                register_dynamic_debug_module(debug_info->modname,
+                        debug_info->type, debug_info->logical_modname,
+                        debug_info->flag_names, debug_info->hash,
+                        debug_info->hash2);
+        }
+}
+#else
+static inline void dynamic_printk_setup(Elf_Shdr *sechdrs,
+                                        unsigned int verboseindex)
+{
+}
+#endif /* CONFIG_DYNAMIC_PRINTK_DEBUG */
+
 static void *module_alloc_update_bounds(unsigned long size)
 {
         void *ret = module_alloc(size);
@@ -1832,6 +1860,7 @@ static noinline struct module *load_module(void __user *umod,
 #endif
         unsigned int markersindex;
         unsigned int markersstringsindex;
+        unsigned int verboseindex;
         struct module *mod;
         long err = 0;
         void *percpu = NULL, *ptr = NULL; /* Stops spurious gcc warning */
@@ -2126,6 +2155,7 @@ static noinline struct module *load_module(void __user *umod,
         markersindex = find_sec(hdr, sechdrs, secstrings, "__markers");
         markersstringsindex = find_sec(hdr, sechdrs, secstrings,
                                         "__markers_strings");
+        verboseindex = find_sec(hdr, sechdrs, secstrings, "__verbose");
 
         /* Now do relocations. */
         for (i = 1; i < hdr->e_shnum; i++) {
@@ -2176,6 +2206,7 @@ static noinline struct module *load_module(void __user *umod,
                 marker_update_probe_range(mod->markers,
                         mod->markers + mod->num_markers);
 #endif
+        dynamic_printk_setup(sechdrs, verboseindex);
         err = module_finalize(hdr, sechdrs, mod);
         if (err < 0)
                 goto cleanup;
@@ -2561,11 +2592,11 @@ static char *module_flags(struct module *mod, char *buf)
             mod->state == MODULE_STATE_GOING ||
             mod->state == MODULE_STATE_COMING) {
                 buf[bx++] = '(';
-                if (mod->taints & TAINT_PROPRIETARY_MODULE)
+                if (mod->taints & (1 << TAINT_PROPRIETARY_MODULE))
                         buf[bx++] = 'P';
-                if (mod->taints & TAINT_FORCED_MODULE)
+                if (mod->taints & (1 << TAINT_FORCED_MODULE))
                         buf[bx++] = 'F';
-                if (mod->taints & TAINT_CRAP)
+                if (mod->taints & (1 << TAINT_CRAP))
                         buf[bx++] = 'C';
                 /*
                  * TAINT_FORCED_RMMOD: could be added.