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kmsan: export kmsan_handle_urb 

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.

Link: https://lkml.kernel.org/r/20221215162710.3802378-1-arnd@kernel.org
Fixes: 553a80188a ("kmsan: handle memory sent to/from USB")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Arnd Bergmann 2022-12-15 17:26:57 +01:00 committed by Andrew Morton
parent aaa746ad8b
commit 7ba594d700
1 changed files with 1 additions and 0 deletions
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1
mm/kmsan/hooks.c
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@ -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)