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Message-Id: <20221215162710.3802378-1-arnd@kernel.org>
Date: Thu, 15 Dec 2022 17:26:57 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Alexander Potapenko <glider@...gle.com>,
Andrew Morton <akpm@...ux-foundation.org>
Cc: Arnd Bergmann <arnd@...db.de>, Marco Elver <elver@...gle.com>,
Dmitry Vyukov <dvyukov@...gle.com>, kasan-dev@...glegroups.com,
linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH] kmsan: export kmsan_handle_urb
From: Arnd Bergmann <arnd@...db.de>
USB support can be in a loadable module, and this causes a link
failure with KMSAN:
ERROR: modpost: "kmsan_handle_urb" [drivers/usb/core/usbcore.ko] undefined!
Export the symbol so it can be used by this module.
Fixes: 553a80188a5d ("kmsan: handle memory sent to/from USB")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
mm/kmsan/hooks.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/kmsan/hooks.c b/mm/kmsan/hooks.c
index 35f6b6e6a908..3807502766a3 100644
--- a/mm/kmsan/hooks.c
+++ b/mm/kmsan/hooks.c
@@ -260,6 +260,7 @@ void kmsan_handle_urb(const struct urb *urb, bool is_out)
urb->transfer_buffer_length,
/*checked*/ false);
}
+EXPORT_SYMBOL_GPL(kmsan_handle_urb);
static void kmsan_handle_dma_page(const void *addr, size_t size,
enum dma_data_direction dir)
--
2.35.1
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