[LU-16291] make kobj_type constant

Related — Wed, 29 Nov 2023 07:42:35 +0000

Kernel v5.16-rc2-28-gee6d3dd4ed48:

commit ee6d3dd4ed48ab24b74bab3c3977b8218518247d
Author:     Wedson Almeida Filho <wedsonaf@google.com>
AuthorDate: Fri Dec 24 23:13:45 2021 +0000
Commit:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CommitDate: Mon Dec 27 10:40:00 2021 +0100

    driver core: make kobj_type constant.
    
    This way instances of kobj_type (which contain function pointers) can be
    stored in .rodata, which means that they cannot be [easily/accidentally]
    modified at runtime.
    
    Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
    Link: https://lore.kernel.org/r/20211224231345.777370-1-wedsonaf@google.com
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Lustre build failed:

lustre/obdclass/obd_config.c: In function 'class_modify_config':
lustre/obdclass/obd_config.c:1639:13: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
13:36:52  1639 |         typ = get_ktype(kobj);
13:36:52       |             ^
13:36:52 cc1: all warnings being treated as errors

Whamcloud Community JIRA

[LU-16291] make kobj_type constant