kdbus: remove attach_flags_mask module parameter setting

4 files changed, 0 insertions, 33 deletions

diff --git a/src/core/manager.c b/src/core/manager.c
index ae473d05c2..a1c54339ea 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -741,9 +741,6 @@ static int manager_setup_kdbus(Manager *m) {
         if (!is_kdbus_available())
                 return -ESOCKTNOSUPPORT;
 
-        if (m->running_as == MANAGER_SYSTEM && detect_container(NULL) <= 0)
-                bus_kernel_fix_attach_mask();
-
         m->kdbus_fd = bus_kernel_create_bus(
                         m->running_as == MANAGER_SYSTEM ? "system" : "user",
                         m->running_as == MANAGER_SYSTEM, &p);
diff --git a/src/libsystemd/sd-bus/bus-kernel.c b/src/libsystemd/sd-bus/bus-kernel.c
index d5cc8100ce..417e4d5903 100644
--- a/src/libsystemd/sd-bus/bus-kernel.c
+++ b/src/libsystemd/sd-bus/bus-kernel.c
@@ -1770,32 +1770,6 @@ int bus_kernel_realize_attach_flags(sd_bus *bus) {
         return 0;
 }
 
-int bus_kernel_fix_attach_mask(void) {
-        _cleanup_free_ char *mask = NULL;
-        uint64_t m = (uint64_t) -1;
-        char buf[2+16+2];
-        int r;
-
-        /* By default we don't want any kdbus metadata fields to be
-         * suppressed, hence we reset the kernel mask for it to
-         * (uint64_t) -1. If the module argument was overwritten by
-         * the kernel cmdline, we leave it as is. */
-
-        r = get_proc_cmdline_key("kdbus.attach_flags_mask=", &mask);
-        if (r < 0)
-                return log_warning_errno(r, "Failed to read kernel command line: %m");
-
-        if (r == 0) {
-                sprintf(buf, "0x%" PRIx64 "\n", m);
-                r = write_string_file("/sys/module/kdbus/parameters/attach_flags_mask", buf);
-                if (r < 0)
-                        return log_full_errno(IN_SET(r, -ENOENT, -EROFS) ? LOG_DEBUG : LOG_WARNING, r,
-                                              "Failed to write kdbus attach mask: %m");
-        }
-
-        return 0;
-}
-
 int bus_kernel_get_bus_name(sd_bus *bus, char **name) {
         struct kdbus_cmd_info cmd = {
                 .size = sizeof(struct kdbus_cmd_info),
diff --git a/src/libsystemd/sd-bus/bus-kernel.h b/src/libsystemd/sd-bus/bus-kernel.h
index b9f31ba790..bb4dff6d82 100644
--- a/src/libsystemd/sd-bus/bus-kernel.h
+++ b/src/libsystemd/sd-bus/bus-kernel.h
@@ -90,8 +90,6 @@ int bus_kernel_drop_one(int fd);
 
 int bus_kernel_realize_attach_flags(sd_bus *bus);
 
-int bus_kernel_fix_attach_mask(void);
-
 int bus_kernel_get_bus_name(sd_bus *bus, char **name);
 
 int bus_kernel_cmd_free(sd_bus *bus, uint64_t offset);
diff --git a/src/libsystemd/sd-bus/test-bus-kernel.c b/src/libsystemd/sd-bus/test-bus-kernel.c
index 8f4f60b65f..6506eaab2e 100644
--- a/src/libsystemd/sd-bus/test-bus-kernel.c
+++ b/src/libsystemd/sd-bus/test-bus-kernel.c
@@ -43,8 +43,6 @@ int main(int argc, char *argv[]) {
 
         assert_se(asprintf(&name, "deine-mutter-%u", (unsigned) getpid()) >= 0);
 
-        bus_kernel_fix_attach_mask();
-
         bus_ref = bus_kernel_create_bus(name, false, &bus_name);
         if (bus_ref == -ENOENT)
                 return EXIT_TEST_SKIP;