4 files changed, 51 insertions, 13 deletions

diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index bb5d115ca671..f282516acc7b 100644
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -174,6 +174,9 @@ int main(void)
         DEVID_FIELD(x86_cpu_id, model);
         DEVID_FIELD(x86_cpu_id, vendor);
 
+        DEVID(cpu_feature);
+        DEVID_FIELD(cpu_feature, feature);
+
         DEVID(mei_cl_device_id);
         DEVID_FIELD(mei_cl_device_id, name);
 
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 25e5cb0aaef6..1924990a737f 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -42,7 +42,7 @@ typedef unsigned char	__u8;
 
 /* This array collects all instances that use the generic do_table */
 struct devtable {
-        const char *device_id; /* name of table, __mod_<name>_device_table. */
+        const char *device_id; /* name of table, __mod_<name>__*_device_table. */
         unsigned long id_size;
         void *function;
 };
@@ -146,7 +146,8 @@ static void device_id_check(const char *modname, const char *device_id,
 
         if (size % id_size || size < id_size) {
                 fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
-                      "of the size of section __mod_%s_device_table=%lu.\n"
+                      "of the size of "
+                      "section __mod_%s__<identifier>_device_table=%lu.\n"
                       "Fix definition of struct %s_device_id "
                       "in mod_devicetable.h\n",
                       modname, device_id, id_size, device_id, size, device_id);
@@ -1110,7 +1111,7 @@ static int do_amba_entry(const char *filename,
 }
 ADD_TO_DEVTABLE("amba", amba_id, do_amba_entry);
 
-/* LOOKS like x86cpu:vendor:VVVV:family:FFFF:model:MMMM:feature:*,FEAT,*
+/* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
  * All fields are numbers. It would be nicer to use strings for vendor
  * and feature, but getting those out of the build system here is too
  * complicated.
@@ -1124,10 +1125,10 @@ static int do_x86cpu_entry(const char *filename, void *symval,
         DEF_FIELD(symval, x86_cpu_id, model);
         DEF_FIELD(symval, x86_cpu_id, vendor);
 
-        strcpy(alias, "x86cpu:");
-        ADD(alias, "vendor:",  vendor != X86_VENDOR_ANY, vendor);
-        ADD(alias, ":family:", family != X86_FAMILY_ANY, family);
-        ADD(alias, ":model:",  model  != X86_MODEL_ANY,  model);
+        strcpy(alias, "cpu:type:x86,");
+        ADD(alias, "ven", vendor != X86_VENDOR_ANY, vendor);
+        ADD(alias, "fam", family != X86_FAMILY_ANY, family);
+        ADD(alias, "mod", model  != X86_MODEL_ANY,  model);
         strcat(alias, ":feature:*");
         if (feature != X86_FEATURE_ANY)
                 sprintf(alias + strlen(alias), "%04X*", feature);
@@ -1135,6 +1136,16 @@ static int do_x86cpu_entry(const char *filename, void *symval,
 }
 ADD_TO_DEVTABLE("x86cpu", x86_cpu_id, do_x86cpu_entry);
 
+/* LOOKS like cpu:type:*:feature:*FEAT* */
+static int do_cpu_entry(const char *filename, void *symval, char *alias)
+{
+        DEF_FIELD(symval, cpu_feature, feature);
+
+        sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
+        return 1;
+}
+ADD_TO_DEVTABLE("cpu", cpu_feature, do_cpu_entry);
+
 /* Looks like: mei:S */
 static int do_mei_entry(const char *filename, void *symval,
                         char *alias)
@@ -1206,7 +1217,7 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 {
         void *symval;
         char *zeros = NULL;
-        const char *name;
+        const char *name, *identifier;
         unsigned int namelen;
 
         /* We're looking for a section relative symbol */
@@ -1217,7 +1228,7 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
         if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT)
                 return;
 
-        /* All our symbols are of form <prefix>__mod_XXX_device_table. */
+        /* All our symbols are of form <prefix>__mod_<name>__<identifier>_device_table. */
         name = strstr(symname, "__mod_");
         if (!name)
                 return;
@@ -1227,7 +1238,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
                 return;
         if (strcmp(name + namelen - strlen("_device_table"), "_device_table"))
                 return;
-        namelen -= strlen("_device_table");
+        identifier = strstr(name, "__");
+        if (!identifier)
+                return;
+        namelen = identifier - name;
 
         /* Handle all-NULL symbols allocated into .bss */
         if (info->sechdrs[get_secindex(info, sym)].sh_type & SHT_NOBITS) {
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 99a45fdc1bbf..066355673930 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -623,7 +623,10 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
 
         switch (sym->st_shndx) {
         case SHN_COMMON:
-                warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name);
+                if (!strncmp(symname, "__gnu_lto_", sizeof("__gnu_lto_")-1)) {
+                        /* Should warn here, but modpost runs before the linker */
+                } else
+                        warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name);
                 break;
         case SHN_UNDEF:
                 /* undefined symbol */
@@ -849,6 +852,7 @@ static const char *section_white_list[] =
         ".xt.lit",         /* xtensa */
         ".arcextmap*",                  /* arc */
         ".gnu.linkonce.arcext*",        /* arc : modules */
+        ".gnu.lto*",
         NULL
 };
 
@@ -1455,6 +1459,10 @@ static void check_section_mismatch(const char *modname, struct elf_info *elf,
                 to = find_elf_symbol(elf, r->r_addend, sym);
                 tosym = sym_name(elf, to);
 
+                if (!strncmp(fromsym, "reference___initcall",
+                                sizeof("reference___initcall")-1))
+                        return;
+
                 /* check whitelist - we may ignore it */
                 if (secref_whitelist(mismatch,
                                         fromsec, fromsym, tosec, tosym)) {
@@ -1693,6 +1701,19 @@ static void check_sec_ref(struct module *mod, const char *modname,
         }
 }
 
+static char *remove_dot(char *s)
+{
+        char *end;
+        int n = strcspn(s, ".");
+
+        if (n > 0 && s[n] != 0) {
+                strtoul(s + n + 1, &end, 10);
+                if  (end > s + n + 1 && (*end == '.' || *end == 0))
+                        s[n] = 0;
+        }
+        return s;
+}
+
 static void read_symbols(char *modname)
 {
         const char *symname;
@@ -1731,7 +1752,7 @@ static void read_symbols(char *modname)
         }
 
         for (sym = info.symtab_start; sym < info.symtab_stop; sym++) {
-                symname = info.strtab + sym->st_name;
+                symname = remove_dot(info.strtab + sym->st_name);
 
                 handle_modversions(mod, &info, sym, symname);
                 handle_moddevtable(mod, &info, sym, symname);
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 51207e4d5f8b..168b43dc0a59 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -127,7 +127,7 @@ struct elf_info {
         Elf_Section  export_gpl_sec;
         Elf_Section  export_unused_gpl_sec;
         Elf_Section  export_gpl_future_sec;
-        const char   *strtab;
+        char         *strtab;
         char         *modinfo;
         unsigned int modinfo_len;