linux-kernel - kernel-doc comment with anonymous variable in anonymous union?

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Message-ID: <aT_RDASKMW4RI_Yf@archie.me>
Date: Mon, 15 Dec 2025 16:12:44 +0700
From: Bagas Sanjaya <bagasdotme@...il.com>
To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Crypto <linux-crypto@...r.kernel.org>,
	Linux Documentation <linux-doc@...r.kernel.org>
Cc: Randy Dunlap <rdunlap@...radead.org>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Jonathan Corbet <corbet@....net>
Subject: kernel-doc comment with anonymous variable in anonymous union?

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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