When building the kmsan test as a module, modpost fails with the
following error message:

    ERROR: modpost: "panic_on_kmsan" [mm/kmsan/kmsan_test.ko] undefined!

Export panic_on_kmsan in order to improve the KMSAN usability for
modules.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 mm/kmsan/report.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/kmsan/report.c b/mm/kmsan/report.c
index 02736ec757f2..c79d3b0d2d0d 100644
--- a/mm/kmsan/report.c
+++ b/mm/kmsan/report.c
@@ -20,6 +20,7 @@ static DEFINE_RAW_SPINLOCK(kmsan_report_lock);
 /* Protected by kmsan_report_lock */
 static char report_local_descr[DESCR_SIZE];
 int panic_on_kmsan __read_mostly;
+EXPORT_SYMBOL_GPL(panic_on_kmsan);
 
 #ifdef MODULE_PARAM_PREFIX
 #undef MODULE_PARAM_PREFIX
-- 
2.41.0

On Wed, Nov 15, 2023 at 9:34 PM Ilya Leoshkevich <iii@linux.ibm.com> wrote:
>
> When building the kmsan test as a module, modpost fails with the
> following error message:
>
>     ERROR: modpost: "panic_on_kmsan" [mm/kmsan/kmsan_test.ko] undefined!
>
> Export panic_on_kmsan in order to improve the KMSAN usability for
> modules.
>
> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>