crypto: bpf - Add MODULE_DESCRIPTION for skcipher

[ Upstream commit f307c87 ]

All modules should have a description, building with extra warnings
enabled prints this outfor the for bpf_crypto_skcipher module:

WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/bpf_crypto_skcipher.o

Add a description line.

Fixes: fda4f71 ("bpf: crypto: add skcipher to bpf crypto")
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Vadim Fedorenko <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>

Author: arndb

crypto/bpf_crypto_skcipher.c

@@ -80,3 +80,4 @@ static void __exit bpf_crypto_skcipher_exit(void)
 module_init(bpf_crypto_skcipher_init);
 module_exit(bpf_crypto_skcipher_exit);
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Symmetric key cipher support for BPF");