Now that module versions are gone, there is no need for srcversion
either.  So drop the logic for this from both the kernel and the helper
module tools.

Cc: Luis Chamberlain <[email protected]>
Cc: Petr Pavlu <[email protected]>
Cc: Daniel Gomez <[email protected]>
Cc: Sami Tolvanen <[email protected]>
Cc: Aaron Tomlin <[email protected]>
Cc: Shyam Saini <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Thorsten Blum <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 Documentation/ABI/stable/sysfs-module |  6 ------
 drivers/block/drbd/drbd_buildtag.c    |  7 +------
 include/linux/module.h                |  1 -
 kernel/module/Kconfig                 | 11 -----------
 kernel/module/main.c                  | 30 ------------------------------
 scripts/Makefile.modpost              |  1 -
 scripts/mod/modpost.c                 | 24 ------------------------
 scripts/mod/modpost.h                 |  1 -
 8 files changed, 1 insertion(+), 80 deletions(-)

diff --git a/Documentation/ABI/stable/sysfs-module 
b/Documentation/ABI/stable/sysfs-module
index 7a3cdd8a8d9f..5c028af9921a 100644
--- a/Documentation/ABI/stable/sysfs-module
+++ b/Documentation/ABI/stable/sysfs-module
@@ -33,9 +33,3 @@ Description:
                Note: If the module is built into the kernel, or if the
                CONFIG_MODULE_UNLOAD kernel configuration value is not enabled,
                this file will not be present.
-
-What:          /sys/module/<MODULENAME>/srcversion
-Date:          Jun 2005
-Description:
-               If the module source has MODULE_VERSION, this file will contain
-               the checksum of the source code.
diff --git a/drivers/block/drbd/drbd_buildtag.c 
b/drivers/block/drbd/drbd_buildtag.c
index cd0389488f63..22f1e842f9ce 100644
--- a/drivers/block/drbd/drbd_buildtag.c
+++ b/drivers/block/drbd/drbd_buildtag.c
@@ -10,13 +10,8 @@ const char *drbd_buildtag(void)
 
        static char buildtag[38] = "\0uilt-in";
 
-       if (buildtag[0] == 0) {
-#ifdef MODULE
-               sprintf(buildtag, "srcversion: %-24s", THIS_MODULE->srcversion);
-#else
+       if (buildtag[0] == 0)
                buildtag[0] = 'b';
-#endif
-       }
 
        return buildtag;
 }
diff --git a/include/linux/module.h b/include/linux/module.h
index 209b6a388be7..cafb99479966 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -377,7 +377,6 @@ struct module {
        /* Sysfs stuff. */
        struct module_kobject mkobj;
        struct module_attribute *modinfo_attrs;
-       const char *srcversion;
        const char *imported_namespaces;
        struct kobject *holders_dir;
 
diff --git a/kernel/module/Kconfig b/kernel/module/Kconfig
index 43b1bb01fd27..e27f12778e24 100644
--- a/kernel/module/Kconfig
+++ b/kernel/module/Kconfig
@@ -238,17 +238,6 @@ config BASIC_MODVERSIONS
 
 endif # MODVERSIONS
 
-config MODULE_SRCVERSION_ALL
-       bool "Source checksum for all modules"
-       help
-         Modules which contain a MODULE_VERSION get an extra "srcversion"
-         field inserted into their modinfo section, which contains a
-         sum of the source files which made it.  This helps maintainers
-         see exactly which source was used to build a module (since
-         others sometimes change the module source without updating
-         the version).  With this option, such a "srcversion" field
-         will be created for all modules.  If unsure, say N.
-
 config MODULE_SIG
        bool "Module signature verification"
        select MODULE_SIG_FORMAT
diff --git a/kernel/module/main.c b/kernel/module/main.c
index da8be9788d13..5f590ce90f2d 100644
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -575,35 +575,6 @@ bool __is_module_percpu_address(unsigned long addr, 
unsigned long *can_addr)
 
 #endif /* CONFIG_SMP */
 
-#define MODINFO_ATTR(field)    \
-static void setup_modinfo_##field(struct module *mod, const char *s)  \
-{                                                                     \
-       mod->field = kstrdup(s, GFP_KERNEL);                          \
-}                                                                     \
-static ssize_t show_modinfo_##field(const struct module_attribute *mattr, \
-                       struct module_kobject *mk, char *buffer)      \
-{                                                                     \
-       return scnprintf(buffer, PAGE_SIZE, "%s\n", mk->mod->field);  \
-}                                                                     \
-static int modinfo_##field##_exists(struct module *mod)               \
-{                                                                     \
-       return mod->field != NULL;                                    \
-}                                                                     \
-static void free_modinfo_##field(struct module *mod)                  \
-{                                                                     \
-       kfree(mod->field);                                            \
-       mod->field = NULL;                                            \
-}                                                                     \
-static const struct module_attribute modinfo_##field = {              \
-       .attr = { .name = __stringify(field), .mode = 0444 },         \
-       .show = show_modinfo_##field,                                 \
-       .setup = setup_modinfo_##field,                               \
-       .test = modinfo_##field##_exists,                             \
-       .free = free_modinfo_##field,                                 \
-};
-
-MODINFO_ATTR(srcversion);
-
 static void setup_modinfo_import_ns(struct module *mod, const char *s)
 {
        mod->imported_namespaces = NULL;
@@ -1083,7 +1054,6 @@ static const struct module_attribute modinfo_taint =
 
 const struct module_attribute *const modinfo_attrs[] = {
        &module_uevent,
-       &modinfo_srcversion,
        &modinfo_import_ns,
        &modinfo_initstate,
        &modinfo_coresize,
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index d7d45067d08b..b6c1467cf527 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -45,7 +45,6 @@ modpost-args =                                                
                                \
        $(if $(CONFIG_MODVERSIONS),-m)                                          
        \
        $(if $(CONFIG_BASIC_MODVERSIONS),-b)                                    
        \
        $(if $(CONFIG_EXTENDED_MODVERSIONS),-x)                                 
        \
-       $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a)                                
        \
        $(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E)                          
        \
        $(if $(KBUILD_MODPOST_WARN),-w)                                         
        \
        $(if $(KBUILD_NSDEPS),-d modules.nsdeps)                                
        \
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index a7b72a81d248..2e969be7f414 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -33,8 +33,6 @@
 static bool module_enabled;
 /* Are we using CONFIG_MODVERSIONS? */
 static bool modversions;
-/* Is CONFIG_MODULE_SRCVERSION_ALL set? */
-static bool all_versions;
 /* Is CONFIG_BASIC_MODVERSIONS set? */
 static bool basic_modversions;
 /* Is CONFIG_EXTENDED_MODVERSIONS set? */
@@ -1584,7 +1582,6 @@ static void mod_set_crcs(struct module *mod)
 static void read_symbols(const char *modname)
 {
        const char *symname;
-       char *version;
        char *license;
        char *namespace;
        struct module *mod;
@@ -1645,13 +1642,6 @@ static void read_symbols(const char *modname)
 
        check_sec_ref(mod, &info);
 
-       if (!mod->is_vmlinux) {
-               version = get_modinfo(&info, "version");
-               if (version || all_versions)
-                       get_src_version(mod->name, mod->srcversion,
-                                       sizeof(mod->srcversion) - 1);
-       }
-
        parse_elf_finish(&info);
 
        if (modversions) {
@@ -2035,15 +2025,6 @@ static void add_depends(struct buffer *b, struct module 
*mod)
        buf_printf(b, "\");\n");
 }
 
-static void add_srcversion(struct buffer *b, struct module *mod)
-{
-       if (mod->srcversion[0]) {
-               buf_printf(b, "\n");
-               buf_printf(b, "MODULE_INFO(srcversion, \"%s\");\n",
-                          mod->srcversion);
-       }
-}
-
 static void write_buf(struct buffer *b, const char *fname)
 {
        FILE *file;
@@ -2149,8 +2130,6 @@ static void write_mod_c_file(struct module *mod)
                free(alias);
        }
 
-       add_srcversion(&buf, mod);
-
        ret = snprintf(fname, sizeof(fname), "%s.mod.c", mod->name);
        if (ret >= sizeof(fname)) {
                error("%s: too long path was truncated\n", fname);
@@ -2327,9 +2306,6 @@ int main(int argc, char **argv)
                case 'o':
                        dump_write = optarg;
                        break;
-               case 'a':
-                       all_versions = true;
-                       break;
                case 'T':
                        files_source = optarg;
                        break;
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 2aecb8f25c87..2c2f1d2b4021 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -126,7 +126,6 @@ struct module {
        bool seen;
        bool has_init;
        bool has_cleanup;
-       char         srcversion[25];
        // Missing namespace dependencies
        struct list_head missing_namespaces;
        // Actual imported namespaces

-- 
2.55.0


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