linux-kernel - [PATCH v5 10/37] kmsan: Export panic_on

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Message-ID: <20240619154530.163232-11-iii@linux.ibm.com>
Date: Wed, 19 Jun 2024 17:43:45 +0200
From: Ilya Leoshkevich <iii@...ux.ibm.com>
To: Alexander Gordeev <agordeev@...ux.ibm.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Lameter <cl@...ux.com>, David Rientjes <rientjes@...gle.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>, Marco Elver <elver@...gle.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Pekka Enberg <penberg@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Vasily Gorbik <gor@...ux.ibm.com>, Vlastimil Babka <vbabka@...e.cz>
Cc: Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Hyeonggon Yoo <42.hyeyoo@...il.com>, kasan-dev@...glegroups.com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-s390@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Ilya Leoshkevich <iii@...ux.ibm.com>
Subject: [PATCH v5 10/37] kmsan: Export panic_on_kmsan

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.

Reviewed-by: Alexander Potapenko <glider@...gle.com>
Signed-off-by: Ilya Leoshkevich <iii@...ux.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
-- 
2.45.1