| From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 | 
 | From: "Jason A. Donenfeld" <Jason@zx2c4.com> | 
 | Date: Fri, 15 Jan 2021 20:30:12 +0100 | 
 | Subject: [PATCH] crypto: lib/chacha20poly1305 - define empty module exit | 
 |  function | 
 |  | 
 | commit ac88c322d0f2917d41d13553c69e9d7f043c8b6f upstream. | 
 |  | 
 | With no mod_exit function, users are unable to unload the module after | 
 | use. I'm not aware of any reason why module unloading should be | 
 | prohibited for this one, so this commit simply adds an empty exit | 
 | function. | 
 |  | 
 | Reported-and-tested-by: John Donnelly <john.p.donnelly@oracle.com> | 
 | Acked-by: Ard Biesheuvel <ardb@kernel.org> | 
 | Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> | 
 | Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> | 
 | Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> | 
 | --- | 
 |  lib/crypto/chacha20poly1305.c | 5 +++++ | 
 |  1 file changed, 5 insertions(+) | 
 |  | 
 | --- a/lib/crypto/chacha20poly1305.c | 
 | +++ b/lib/crypto/chacha20poly1305.c | 
 | @@ -364,7 +364,12 @@ static int __init mod_init(void) | 
 |  	return 0; | 
 |  } | 
 |   | 
 | +static void __exit mod_exit(void) | 
 | +{ | 
 | +} | 
 | + | 
 |  module_init(mod_init); | 
 | +module_exit(mod_exit); | 
 |  MODULE_LICENSE("GPL v2"); | 
 |  MODULE_DESCRIPTION("ChaCha20Poly1305 AEAD construction"); | 
 |  MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>"); |