kernel-doc comment with anonymous variable in anonymous union?

From: Bagas Sanjaya

Date: Mon Dec 15 2025 - 04:12:56 EST


Hi,

kernel-doc reports warning on include/crypto/skcipher.h:

WARNING: ./include/crypto/skcipher.h:166 struct member 'SKCIPHER_ALG_COMMON' not described in 'skcipher_alg'

skciper_alg struct is defined as:

struct skcipher_alg {
int (*setkey)(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen);
int (*encrypt)(struct skcipher_request *req);
int (*decrypt)(struct skcipher_request *req);
int (*export)(struct skcipher_request *req, void *out);
int (*import)(struct skcipher_request *req, const void *in);
int (*init)(struct crypto_skcipher *tfm);
void (*exit)(struct crypto_skcipher *tfm);

unsigned int walksize;

union {
struct SKCIPHER_ALG_COMMON;
struct skcipher_alg_common co;
};
};

Note the first member in the union, which is an anonymous (i.e. unnamed) variable.

What can I do on it? Should the offending member be deleted?

Thanks.

--
An old man doll... just what I always wanted! - Clara

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