linux/scripts/mod
Nathan Chancellor deb4605671 modpost: Declare extra_warn with unused attribute
A recent strengthening of -Wunused-but-set-variable (enabled with -Wall)
in clang under a new subwarning, -Wunused-but-set-global, points out an
unused static global variable in scripts/mod/modpost.c:

  scripts/mod/modpost.c:59:13: error: variable 'extra_warn' set but not used [-Werror,-Wunused-but-set-global]
     59 | static bool extra_warn;
        |             ^

This variable has been unused since commit 6c6c1fc09d ("modpost:
require a MODULE_DESCRIPTION()") but that is expected, as there are
currently no extra warnings at W=1 right now. Declare the variable with
the unused attribute to make it clear to the compiler that this variable
may be unused.

Cc: stable@vger.kernel.org
Fixes: 6c6c1fc09d ("modpost: require a MODULE_DESCRIPTION()")
Link: https://patch.msgid.link/20260325-modpost-extra_warn-unused-but-set-global-v1-1-2e84003b7e81@kernel.org
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2026-03-30 07:45:34 +02:00
..
.gitignore .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
devicetable-offsets.c mcb: Add missing modpost build support 2025-12-27 20:48:01 +01:00
empty.c
file2alias.c mcb: Add missing modpost build support 2025-12-27 20:48:01 +01:00
Makefile Makefile: remove redundant tool coverage variables 2024-05-14 23:35:48 +09:00
mk_elfconfig.c modpost: detect endianness on run-time 2024-09-01 20:33:32 +09:00
modpost.c modpost: Declare extra_warn with unused attribute 2026-03-30 07:45:34 +02:00
modpost.h modpost: Create modalias for builtin modules 2025-09-24 09:10:45 -07:00
sumversion.c modpost: use strstarts() to clean up parse_source_files() 2025-03-15 21:16:22 +09:00
symsearch.c modpost: replace the use of NOFAIL() with xmalloc() etc. 2024-09-01 20:34:48 +09:00